YZ Systems NJEX 7300G Instructions & Operating Manual

NJEX 7300G
N A T U R A L G A S
O D O R I Z A T I O N
S Y S T E M
The NJEX 7300G
Instruction & Operating Manual
Version: 08-2018
7300G Table of Contents
7300G Table of Contents.....................................................................................................................I
Section 1: First Things To Know About The 7300G.......................................................................1
How to Use this Manual.......................................................................................................................1
Typographic Conventions.....................................................................................................................1
Getting Help.........................................................................................................................................1
Operation Specifications......................................................................................................................2
Warranty...............................................................................................................................................2
Theory of Operation.............................................................................................................................3
System Accessories.............................................................................................................................3
Section 2: System Installation.........................................................................................................5
Standard System Components............................................................................................................5
System Flow Schematic.......................................................................................................................6
Standard System Mounting..................................................................................................................7
Standard System Connections.............................................................................................................8
Skid System Components..................................................................................................................10
System Flow Schematic.....................................................................................................................12
Skid System Mounting........................................................................................................................13
Skid System Connections..................................................................................................................15
Section 3: Filling the Bulk Odorant Tank .....................................................................................17
Filling the Tank for the First Time........................................................................................................17
Refilling the Bulk Odorant Tank..........................................................................................................18
Section 4: System Control & Electronics......................................................................................19
Overview............................................................................................................................................19
To Use The Key Pad...........................................................................................................................19
To Power Up The System...................................................................................................................20
Test & Standby Keys..........................................................................................................................21
Battery & Solar Panel Assembly.........................................................................................................22
LPS and Battery w/Cover Removed...................................................................................................22
Solar Panel.........................................................................................................................................22
SPS and Battery w/Cover Removed..................................................................................................22
Communications Interface..................................................................................................................23
Comm-Link Configuration...................................................................................................................23
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page I
7300G Table of Contents
Section 5: Programming for Proportional-to-Flow Operation.....................................................25
Setting Operator Input Parameters....................................................................................................25
Odorant injection rate in lbs/MMCF (mg/m3) of gas...........................................................................25
Pump displacement in cc/stroke.........................................................................................................25
Odorant density in lbs/gallon (g/cc) @ 60º F......................................................................................25
Max gas flow in MMCF/Hour (m3/sec)...............................................................................................26
Low Flow Shut Off..............................................................................................................................26
Flow (no signal) input.........................................................................................................................26
Maximum Time/Stroke........................................................................................................................27
The Odorant Output Setting...............................................................................................................27
Odorant Tank......................................................................................................................................28
Expansion Tank Pressure Monitoring ................................................................................................28
Odorant Inlet Pressure Monitoring ....................................................................................................29
Alarm to Relay Delay . .......................................................................................................................30
Alarm to Call Out Delay .....................................................................................................................30
MODBUS Address . ...........................................................................................................................30
MODBUS Parameters .......................................................................................................................31
Conclusion..........................................................................................................................................31
Section 6: Programming for Proportional-to-Time Operation.....................................................33
Setting Operator Input Parameters....................................................................................................33
Pump displacement in cc/stroke.........................................................................................................33
Odorant density in lbs/gallon (g/cc.) @ 60ºF......................................................................................33
Time interval between strokes of the pump in xx.xx minutes/stroke:.................................................33
The Odorant Output Setting .............................................................................................................34
Odorant Tank......................................................................................................................................34
Expansion Tank Pressure Monitoring ................................................................................................35
Odorant Inlet Pressure Monitoring.....................................................................................................35
Alarm to Relay Delay . .......................................................................................................................36
Alarm to Call Out Delay .....................................................................................................................36
MODBUS Address . ...........................................................................................................................37
MODBUS Parameters .......................................................................................................................37
Conclusion..........................................................................................................................................38
Section 7: Calibrating Signal Inputs..............................................................................................39
Analog Flow Input Calibration, 1-5 VDC / 4-20 mA............................................................................39
Expansion Tank Pressure Transmitter Zero Calibration.....................................................................41
Odorant Inlet Pressure Transmitter Zero Calibration..........................................................................42
Pulse Flow Input Calibration, Dry Contact & Voltage Pulse...............................................................44
Calculation for Determining the Span Frequency Example................................................................45
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page II
NJEX 7300G ver.08-2018
7300G Table of Contents
Section 8: Working with the N-300 System Displays...................................................................47
Display Functionality..........................................................................................................................47
To View Real Time Displays...............................................................................................................48
Strokes Signaled..........................................................................................................................48
Odorant Injected...........................................................................................................................48
Pump Displacement.....................................................................................................................48
Pump Alarms.............................................................................................................................48
Meter Level – Verometer..............................................................................................................49
Meter Alarms – Verometer.........................................................................................................49
Meter Indicators, non-alarm.......................................................................................................49
Expansion Tank............................................................................................................................50
Odorant Inlet.................................................................................................................................50
Battery Voltage.............................................................................................................................50
Battery Alarm.............................................................................................................................50
Flow Input.....................................................................................................................................50
Flow Input Alarms ....................................................................................................................50
Flow Input Indicators, non-alarm...............................................................................................50
Tank Level....................................................................................................................................51
Tank Level Alarm.......................................................................................................................51
Odorant Temperature...................................................................................................................51
Section 9: Setting & Testing Alarms..............................................................................................53
Setting Alarm Out Status....................................................................................................................53
Testing Alarm Out Status....................................................................................................................55
Setting The Clock...............................................................................................................................58
Section 10: Mechanical System.....................................................................................................61
Overview............................................................................................................................................61
Odorant Inlet Manifold & Bulk Odorant Filter Assembly.....................................................................62
Fill Valve.............................................................................................................................................62
Verometer...........................................................................................................................................63
Model 7000F Pump............................................................................................................................64
Odorant Discharge Manifold...............................................................................................................64
NJEX Gas Filter..................................................................................................................................65
Solenoid Valve & Pneumatic Relay Manifold......................................................................................66
Expansion Tank..................................................................................................................................66
Section 11: System Operation........................................................................................................67
Setting System Pressures and Valves................................................................................................67
Low Pressure Relief Adjustment........................................................................................................67
Starting The System...........................................................................................................................68
To Stop The System...........................................................................................................................69
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page III
7300G Table of Contents
Section 12: System Maintenance...................................................................................................71
Preventative Maintenance Schedule..................................................................................................71
Recommended Maintenance Schedule........................................................................................71
Weekly Inspection......................................................................................................................71
Semi-Annual Inspection.............................................................................................................71
Annual Inspection......................................................................................................................71
Bi-Annual Inspection..................................................................................................................71
Recommended Spare Parts List...................................................................................................71
Overflow Protector Assembly Inspection............................................................................................72
Low Pressure Relief Adjustment........................................................................................................73
Conducting a Forward Purge.............................................................................................................74
Venting Pressure Gas........................................................................................................................76
Filling the Verometer..........................................................................................................................78
Priming & Starting the NJEX System.................................................................................................80
Section 13: 7300G System Troubleshooting................................................................................83
How to Use This Section....................................................................................................................83
For Additional Help.......................................................................................................................83
Step-by-Step Resolution...............................................................................................................83
Tank Level Alarms..............................................................................................................................83
Tank Level Alarm Troubleshooting Steps.....................................................................................84
Battery Alarm .....................................................................................................................................84
Battery Alarm Troubleshooting Steps...........................................................................................84
Signal Alarms.....................................................................................................................................85
Signal Non-Alarm Indicators...............................................................................................................85
Signal Alarm & Non-Alarm Indicator Troubleshooting Steps.......................................................85
Loss of Flow Alarm Troubleshooting Steps...............................................................................85
Overflow Alarm Troubleshooting Steps.....................................................................................85
Low Flow Non-Alarm Indicator Troubleshooting Steps..............................................................86
Overflow Non-Alarm Indicator Troubleshooting Steps...............................................................86
Verometer Alarms...............................................................................................................................86
Verometer Non-Alarm Indicators.......................................................................................................87
Verometer Troubleshooting Steps................................................................................................87
Verometer Cable Alarm Troubleshooting Steps.........................................................................87
Verometer No-Fill Alarm Troubleshooting Steps........................................................................87
Verometer Slow-Fill Alarm Troubleshooting Steps...................................................................88
Verometer Leakage Alarm Troubleshooting Steps....................................................................88
Verometer Fill Valve Failure Alarm Troubleshooting Steps........................................................89
Verometer Odorant Inlet Cable Alarm Troubleshooting Steps...................................................89
Verometer Odorant Inlet Low Alarm Troubleshooting Steps......................................................90
Verometer Odorant Inlet Hi Alarm Troubleshooting Steps.........................................................90
Verometer Expansion Tank Cable Alarm Troubleshooting Steps..............................................90
Verometer Expansion Tank Low Alarm Troubleshooting Steps.................................................90
Verometer Expansion Tank High Alarm Troubleshooting Steps................................................91
Verometer Overfill Non-Alarm Indicator Troubleshooting Steps................................................91
Verometer Fill Rate Non-Alarm Indicator Troubleshooting Steps..............................................91
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page IV
NJEX 7300G ver.08-2018
7300G Table of Contents
Section 13: 7300G System Troubleshooting continued
Pump Alarms......................................................................................................................................91
Pump Over Pumping Alarm Troubleshooting Steps..................................................................92
Pump Under Pumping Alarm Troubleshooting Steps................................................................92
Pump Failure Alarm Troubleshooting Steps..............................................................................93
Appendix A: Illustrations................................................................................................................95
NJEX Model 7000F Pump Assembled...............................................................................................95
NJEX Model 7000F Pump Actuation Assembly, Exploded View........................................................96
NJEX Model 7000F Pump, Diaphragm Cartridge, Exploded View.....................................................97
NJEX Model 7000F Pump, Check Valve Assembly, Exploded View..................................................98
Fill Valve, Exploded View...................................................................................................................99
VM-1100 Verometer, with Filter Assembly, Exploded View..............................................................100
Bulk Odorant Filter...........................................................................................................................101
NJEX Gas Filter................................................................................................................................102
Electronics Assembly.......................................................................................................................103
SPS-12 Solar Power Supply Unit.....................................................................................................104
LPS-120/240 Charger Supply Unit...................................................................................................105
Heater Wiring Diagram.....................................................................................................................106
Appendix B: N-300 Modbus Specifications................................................................................107
Communications Settings.................................................................................................................107
N300 Modbus Function Support.................................................................................................107
Boolean Registers......................................................................................................................107
Control Functions.......................................................................................................................107
Status Functions.........................................................................................................................108
Alarm Functions..........................................................................................................................109
Integer Registers........................................................................................................................110
Result Data Functions.............................................................................................................110
Parameter functions...................................................................................................................112
Exception Responses.................................................................................................................112
Appendix C: Response Forms......................................................................................................113
For the Record Form........................................................................................................................113
NJEX Trouble Shooting Form...........................................................................................................114
Appendix D: Documents................................................................................................................115
N-300 Controller Display Diagram....................................................................................................115
Wiring Control Document ................................................................................................................116
Appendix E: N-300 ATEX Connections.........................................................................................117
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page V
Section 1: First Things To Know About The 7300G
How to Use this Manual
Getting Help
The NJEX-7300G Operations Manual is a step-bystep guide containing the procedures needed to work
with the 7300G System.
This manual provides solutions to typical questions
about the 7300G system. If the answer can not be
found within this manual, contact YZ Systems at:
The NJEX System Series of odorizers implement the
most advanced technology available in the industry. It
is recommended that the technicians working with the
NJEX Odorization Systems study the manual prior to
initiating work on the system for the first time.
T: 1.281.362.6500
T: 1.800.653.9435 (800.NJEX.HELP)
F: 1.281.362.6513
Em: [email protected]
Typographic Conventions
When calling, have this manual close at hand.
Whether calling or writing, please include in your communique the following information:
To aide in readability, this manual uses several
typographic conventions. References to illustrations, • The serial number of the NJEX System and the
version number of this manual. The serial number
photographs, and other related content will appear in
is located on the inside of the enclosure door just
italicized text along with the location of where to find
below the system flow diagram. The version number
the item in the manual. Digital versions of the manual,
of this manual is located at the bottom of each page.
available in Adobe Acrobat™ PDF format, will be
highlighted further in blue italic text indicating the copy
• A description of the problem and, if applicable the
retains a hyperlink to the referenced item.
actions of the technical personnel when the problem
occurred.
Measurement units are listed in italic parenthesis text
following their US standard equivalent. As an example, for defining a distance, 15’ (4.5 meters), is how • A listing of any messages that may have appeared
in the LCD on the N-300G controller, please include:
the text will appear throughout the manual.
1. The exact wording of the message(s).
Items that require action, for example the pressing of a
key for programming the controller, will feature the action
2. The version number of the Sentry software
item in sentence case Bold Text followed in normal
used.
text by the item such as, the Up Arrow key or Main
Power switch.
Starting with Section 4, System Control & Electronics,
the manual will begin discussing the in-depth operation of the N-300 electronic controller where many of
these typographic conventions will be found. In the
discussion about the controller, the technician will
learn about the dual-use keypad. Here, the controller
LCD will display a new function for the key located immediately below the displayed item. For example, an
Up Arrow key may have *Set immediately above it on
the LCD indicating to set, or enter, the selected item
into the memory of the N-300 controller. The asterisk
(*), immediately before Set on the LCD indicates the
dual-use keypad is active. Further discussion on the
dual-use capability of the N-300 controller keypad will
take place in Section 4, System Control and Electronics, on page 19.
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver08-2018
Page 1
Section 1: First Things To Know About The 7300G
Operation Specifications
Warranty
Please visit our web site www.yzsystems.com for a
17.6 gallons/day
complete copy of our warranty contained in our Terms
(67 liters/day)
and Agreement document.
Maximum Operating Pressure: 1,440 psig
(99.28 Bar (g)
Operating Temp Range:
0 to 140 degrees F.
(17°C to 60°C)
Power Supply:
SPS-12 solar panel ,
std.
LPS-120/240 volt-
50/60Hz AC charger,
opt.
Battery Reserve 1:
Approximately 30 days
Gas Flow Rate Input Signal: 1-5 VDC, 4-20 mA or
pulse
Note: at temperatures below 32º F (0º C), conditioning of the actuation gas supply may be required.
Where the actuation gas supply has a high water
content and/or a low hydrocarbon dew point, additional actuation gas filtration or heating of the actuation
gas supply may be necessary. Bottled nitrogen can
also be used during cold operating conditions to avoid
condensation in the actuation gas supply line. In addition, operation at extreme temperatures will affect seal
and diaphragm performance. To prolong the service
of seals and diaphragm, adequate heat should be
provided to maintain an operating environment above
30° F (-1º C).
Maximum Odorant Output:
NJEX Systems are approved Class I, Div I and must
be installed grounded, wired, and I.S. Barrier Protected in accordance with all applicable electrical codes.
1
Actual reserve time is dependant on age and condition of battery and the usage rate of the NJEX System.
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 2
NJEX 7300G ver.08-2018
Section 1: First Things To Know About The 7300G
Theory of Operation
CAUTION:
Excessive tubing lengths should be avoided. Installation of the NJEX Odorization system should be as
close to the point of injection and Odorant Storage
Tank as possible. Maximum tubing length should not
During normal operation, the Model 7000 pump injects exceed 15’ (4.5 meters) with the tubing size mainan exact quantity of odorant at a rate determined
tained as indicated in this manual. If longer tubing
by the N-300G controller. The quantity of odorant
lengths are required consult YZ Systems Technical
injected per stroke is set using a spacer in the pump
Services at; 800.653.9435 or 1.281.362.6500.
actuation assembly. The rate at which the pump is
actuated is determined by the N-300G controller.
Operation of the 7300G centers around three primary
components: the Model 7000 pump, the Model
VM-1100 Verometer and the Model N-300G controller.
The VM-1100 Verometer serves as a temperature
compensated meter which verifies the amount of
odorant injected by the Model 7000 pump. The N300G controller uses an input signal from the Verometer to determine the amount of odorant that has
been injected, as well as the odorant level within the
Verometer. Once the odorant level falls to a predetermined low level point, the N-300G controller actuates
a solenoid valve which opens the fill valve, allowing
the Verometer to be refilled. Once the Verometer is
filled, the N-300G controller closes the fill valve.
System Accessories
• Odorant Injection Probe, includes a 316 stainless
steel probe, and isolation valve for location at the
pipeline. When ordering, please specify pipeline
connection required, 1/2” or 3/4”.
• Odorant Injection Probe with Sightglass, includes
a 316 stainless steel probe, visual odorant sight
indicator, and an isolation valve for location at the
pipeline. When ordering, please specify pipeline
connection required, 1/2” or 3/4”.
• 1/4” stainless steel discharge tubing In-line Check
The N-300G controller allows the 7300G system to
Valve. For placement in the odorant discharged
operate in either a time-based mode or a proportionaltubing line immediately preceding the probe assemto-flow mode. In the time-based mode of operation,
bly, (P/N A3-0024).
the N-300G controller actuates the Model 7000 pump
at a regular time interval preset by the operator.
• 1/4” stainless steel tubing Dielectric Isolator Union.
These should be installed in every tubing line that
In the proportional-to-flow mode of operation, the
attaches the odorizer to the pipeline in any manner.
N-300G controller uses a customer provided gas flow
For example the supply gas, odorant discharge, and
rate input signal and several operator input values
differential pressure switch connections, (P/N A1to calculate the time between strokes of the pump.
0182).
These operator input values include the odorant injection rate (lbs/MMCF or mg/m3), pump displacement
• NJEX Scrubbers. These filters are designed to
(cc/stroke), and the odorant density (lbs/gal or g/cc).
scrub the exhaust gas vented from the pumps or
The flow input signal is customer provided by either a
Overflow Protector of the Expansion Tank. They are
flow computer or other flow monitoring devices. In this
available by ordering P/N C4-0018, 15 gallon scrubmode, the controller has the capability to distinguish
ber.
between a low flow situation and a loss of flow input
signal. For systems with analog inputs, if a loss of
flow signal occurs, the controller automatically defaults A complete line of odorization accessories ranging
from pre-odorized gas scrubbers to injection probes is
back to a pre-selected percentage of the flow input.
available through YZ. Please contact your local
The flow input signal is read by the N-300G controller representative or YZ toll free at 800.344.5399. For
eight times per pump stroke. These readings are aver- technical support call 800.653.9435.
aged and the time duration until the next stroke is then
calculated by the controller. The maximum time between strokes is 99.99 minutes (when gas is flowing),
regardless of the time calculated by the controller.
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver08-2018
Page 3
Section 1: First Things To Know About The 7300G
Notes
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 4
NJEX 7300G ver.08-2018
Section 2: System Installation
Standard System Components
• SPS12 Solar Panel Assembly
Standard primary components of the NJEX-7300G
include the following:
• System Enclosure, figure 1. Houses the Model
7000F pump, the Model VM-1100 Verometer, the
odorant fill valve, the solenoid valve/pneumatic
relay manifold, the odorant discharge manifold, the
system control enclosure, *power supply enclosure,
and bulk odorant filter.
Expansion
Tank
System Enclosure
• *SPS12 Solar Panel Assembly, figure 1. The standard solar panel for the 7300G is equipped with a
mounting bracket and a connection cable.Optional
LPS-120/240 may be used in lieu of the solar panel.
• System Control Enclosure. Houses the N-300G
controller. (Not illustrated)
• *Power Supply Enclosure. Houses the battery, charger supply, and I.S. Barrier. (Not illustrated)
NJEX Gas
Filter
Figure 1
• Bulk Odorant Filter, figure 3. Provides primary
odorant filtration between the storage tank and
the NJEX-7300G. The Bulk Odorant Filter is preinstalled inside the System Enclosure attachment to
the odorant source is via an odorant inlet manifold
equipped with 1/4” FNPT connection located on the
back of the System Enclosure.
Figure 2
Actuation Gas Regulator
• Service Tray, (Not Illustrated), should be installed in
the bottom of the system enclosure, to capture any
drops that may occur during servicing of the odorizer.
• Mechanical Cabinet Cable, figure 3. Provides the
connection between the system control enclosure
and the electrical components in the mechanical
section.
• Expansion Tank, figure 2. Provides a closed loop
system for pressure fluctuations within the Verometer during the odorant fill/injection cycle.
• NJEX Gas Filter, figure 2. Installed between the
actuation gas regulator and the actuation gas manifolds, this filter provides a 25 micron coalescent
filtration to insure a clean pneumatic supply.
• Actuation Gas Regulator, figure 3. Provides additional regulation of supply gas to actuate the pump.
Figure 3
Bulk Odorant Filter
* ATEX installations refer to Appendix E. page 117.
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 5
Section 2: System Installation
System Flow Schematic
Figure 4
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 6
NJEX 7300G ver.08-2018
Section 2: System Installation
Standard System Mounting
Figure 5
2. In order to satisfy NEC requirements you
must connect a ground wire from the grounding lug located on the enclosure leg to a properly installed ground rod, located adjacent to
the system enclosure. *Resistance to ground
must be less than 1 Ohm. To assure proper
system operation this ground should not be a
shared ground with any other equipment.
1. Bolt down the system enclosure to a concrete
slab using the mounting holes (9/16”) provided in
the bottom of each leg of the enclosure. Recommended bolt/stud sizes for mounting the enclosure
is 1/2”.
TABLE
SINGLE
DUAL
'A'
A
20-3/4”
40-1/4”
8-10 AWG
B
20-1/4”
39-1/2”
C
9”
9”
'B'
'C'
BACK VIEW
SIDE VIEW
4'-0" Min.
Depth of
Grounding Rod
FRONT VIEW
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 7
Section 2: System Installation
Standard System Connections
Required field connections to place the 7300G into
operation are as follows:
1. Connect the solar panel cable to the system power
supply, sps-12, figure 6.
SPS-12
Note: the solar panel should be mounted free of
obstructing shade and should be facing south in the
northern hemisphere or facing North in the southern
hemisphere.
1a. *If your system was ordered with the optional
LPS120/240 power supply, AC power should be
connected in accordance with explosion-proof
code via a termination junction box (not shown) to
be attached to the conduit provided at the upper
left side on the system enclosure. The nominal
power requirement for 120VAC will be 100 mA,
or for 240VAC will be 50mA. These power inputs
must be fused with a maximum of 15A, figure 7.
Minimum allowable operational voltage range for
input is 85VAC to 250VAC.
Figure 6
LPS120/240
2. Connect the flow signal device to the termination
block located in the system control enclosure,
figure 8, refer to the Wiring Control Document on
page 116 in Appendix D.
2a. If used, connect the optional Inhibit Input signal to
the termination block located in the system control
enclosure, figure 8, refer to the Wiring Control
Document on page 116 in Appendix D.
Figure 7
2b. If used, connect the RS-485 communication wiring as required to the termination block located in
the system control enclosure, figure 8, refer to the
Wiring Control Document on page 116 in Appendix
D.
* ATEX installations refer to Appendix E. page 117.
Figure 8
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 8
NJEX 7300G ver.08-2018
Section 2: System Installation
CAUTION:
6. If a heater option was specified with this odorizer,
Excessive tubing lengths should be avoided. Installation of the NJEX Odorization system should be as close 120 / 240 VAC electricity refer to the heater wiring
diagram, page 106, should be connected to the
to the point of injection and Odorant Storage Tank as
possible. Maximum tubing length should not exceed 15’ electrical inlet located on the lower side of the
(4.5 meters) with the tubing size maintained as indicated enclosure using 1/2” conduit and appropriate pack
off. Power requirements for the heater are in this manual. If longer tubing lengths are required
consult YZ Systems Technical Service Department at; 1.67A for the 120VAC heater, and .833A for the
240VAC heater. Each heater is a thermostati cally
800.653.9435 or 281.362.6500.
controlled 200Watt unit, figure 10. Dual unit enclo
3. Connect the odorant supply source to the odorant sures may have dual heater elements. Values
inlet mainfold with the recommended 1/4” stainless provided are per heater element.
steel tubing, figure 9. A tank isolation valve should
be incorporated between the storage tank and this
connection, figure 9.
4. Connect the regulated actuation gas source, of 75
psi (5.17 Bar) supplied by the NJEX system owner,
to the NJEX gas filter inlet fitting using a dielectric
union, figure 9.
• For Pipeline pressures less than 200 psig a single
cut regulator (Fisher 67 YZ P/N A3-0042 or
similar) adjustable to provide 75 psig to the inlet
gas filter on the NJEX enclosure should be acceptable.
• P/L pressure above 200 psig need a dual cut regulation process:
1. Install the primary regulator on the pipeline
*Fisher 1301 YZ P/N A3-0274 or similar),
and adjust it to provide 150 psi to the secondary regulator.
2. Install the secondary regulator at the inlet
gas filter on the back of the NJEX enclosure
(Fisher 67 YZ P/N A3-0042 or similar), and
adjust it to provide 75 psig to the NJEX System should be acceptable.
3. 3/8” Stainless Steel tubing should be used
between the two regulators.
• Dual Pump enclosures, may require larger tubing
between the regulators, and the secondary regulator may need to have a larger orifice (Fisher 64 or
similar), if both pumps run simultaneously.
Note: In applications where the actuation gas supply
has a high water content and/or a low hydrocarbon dew
point, additional actuation gas filtration or heating of the
7300G system may be necessary. Bottled nitrogen can
also be used during cold operating conditions to avoid
condensation in the actuation gas supply line. Also,
an actuation gas source pressure of 75 psi (5.17 Bar)
should be adequate in most installations.
5. Connect the pipeline port of the odorant discharge
manifold to the pipeline connection using a dielectric
union and check valve, figure 9.
Odorant Discharge
Manifold Pipeline Port
Odorant Inlet
Connection
75 psi (5.17 Bar)
Regulated Actuation
Gas
Figure 9
Optional Heater
A.C. Connection
Figure 10
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 9
Section 2: System Installation
The NJEX SkidMount Series of odorization systems
is a total system approach to odorization. These systems are completely factory assembled, tested, and
delivered requiring only three field connections to be
fully operational. The NJEX SkidMount Systems offer
all the advantages of our standard 7300G Systems
plus the added benefit of an onboard odorant storage
tank. The configuration allows for a total systems approach to odorization.
The SkidMount Systems come standard with an
electronic level indicator factory connected to the
N-300G controller. The controller has an alarm capability to indicate when the liquid level in the storage
tank has fallen below a predetermined level set by the
operator.
The Systems are available with 20, 60, 120, 250, 500
and 1000 gallon tank sizes. (Larger sizes are available up to 10,000 gallons by custom order).
Skid system primary components of the NJEX-7300G
include the following:
• Skid Mounted Tank a pre-assembled, and tested
Structural steel skid with odorant tank, valve package, skid piping, and system enclosure.
• NJEX System Enclosure, figure 11, houses and
protects the; 7000F pump, VM-1100 Verometer,
odorant fill valve, solenoid valve/pneumatic relay
manifold, odorant discharge manifold, N-300 system
sure, and bulk odorant filter.
• *SPS-12 – Solar Panel Assembly, figure 11, is
standard equipment for the 7300G and includes a
mounting bracket and a connection cable.Optional
LPS-120/240 or DC power may be used in lieu of
the solar panel.
Figure 11
• System Control Enclosure for the N-300G controller.
• *Power Supply Enclosure for the battery and
charging system.
* ATEX installations refer to Appendix E. page 117.
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 10
NJEX 7300G ver.08-2018
Section 2: System Installation
Actuation Gas Regulator
• Bulk Odorant Filter, figure 12, provides primary
odorant filtration between the storage tank and
the NJEX-7300G. The bulk odorant filter is preinstalled inside the system enclosure attachment
to the odorant source is via a bulk filter manifold
equipped with 1/4” FNPT connection located on the
back of the system enclosure.
• Mechanical Interconnect Cable, figure 12, provides the connection between the system control
enclosure and the electrical components located in
the mechanical section.
• Expansion Tank, figure 13, provides a closed
loop system for pressure fluctuations within the
Verometer during the odorant fill and injection
cycle.
• NJEX Gas Filter, figure 13, installed between
the actuation gas regulator and the actuation gas
manifolds provides a 25 micron coalescent filtration
to insure a clean pneumatic supply.
• Actuation Gas Regulator, figure 12, provides
additional regulation of supply gas to actuate the
pump.
Bulk Odorant Filter
Figure 12
• Service Tray, (Not Illustrated), should be installed
in the bottom of the system enclosure, to capture
any drops that may occur during servicing of the
odorizer.
Expansion
Tank
NJEX Gas
Filter
Figure 13
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 11
Section 2: System Installation
System Flow Schematic
Figure 14
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 12
NJEX 7300G ver.08-2018
Section 2: System Installation
Skid System Mounting
Figure 15
1. Prepare a concrete slab that exceeds the
NJEX skid length and width dimensions by
at least 12”.
2. When moving the system into place follow
these lifting guidelines:
a. Lift containment skid systems using
all four eyebolts on the corners of
the skid.
b. Lift rail skid systems from the bottom
of the skid by forklift or other supportive device.
c. Do not move a system with liquid in
the odorant tank.
d. Do not lift a system by the tank lugs,
these lugs are designed only for the
weight of the empty tank.
TANK
gallons
20
60
120
250
500
1000
2000
CABINET
Either
Either
Single
Double
Either
Either
Either
Either
3. Bolt the system to the concrete slab using
the ¾” mounting holes provided in the skid.
Recommended mounting bolt/stud sizes are
either 11/16” or 5/8”.
4. Connect a ground wire from one of the
grounding lugs located on the skid to a properly installed ground rod located adjacent
to the skid. *(Resistance to ground must be
less than 1 ohm).
CAUTION:
• Do not life the system by the TANK LUGS. These
lugs are designed only for the weight of the empty
tank.
• do not move a system with liquid in the odorant
tank. The tank must be emptied first.
RAIL SKID SYSTEMS
BL
inches
47
52
96
96
122
147
220
318
BW
inches
47
52
26
47
47
47
47
48 1/2
L
inches
49
54
98
98
124
149
222
322
W
inches
49
54
28
49
49
49
49
52 1/2
WEIGHT
pounds
450
550
750
800
1150
1600
2750
6600
Figure 15
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 13
Section 2: System Installation
CONTAINMENT SKID SYSTEMS
TANK
gallons
20
60
120
250
500
1000
2000
CABINET
Single
Double
Single
Double
Single
Double
Either
Either
Either
Either
BL
inches
50
31
56
36
82
82
108
116
192
252
BW
inches
32
58
32
58
32
54
58
58
64
69
O
inches
8
7
8
7
8
8
8
8
8
14
L
inches
66
45
72
50
98
98
124
154
240
318
W
inches
36
62
36
62
36
58
62
62
68
73
WEIGHT
pounds
800
850
950
1000
1200
1350
1850
2600
4250
7850
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 14
NJEX 7300G ver.08-2018
Section 2: System Installation
Skid System Connections
Required field connections to place the 7300G into
operation are as follows:
1. *Connect the solar panel cable to the system
power supply, SPS-12, figure 16.
SPS-12
Note: the solar panel should be mounted free of
obstructing shade and should be facing south in the
northern hemisphere or facing north in the southern
hemisphere.
1a. *If your system was ordered with the optional
LPS-120/240 power supply, AC power should be
connected in accordance with explosion-proof
code via a termination junction box to be attached
to the conduit provided at the upper left side on
the system enclosure. The power requirement
for 120VAC will be 100mA, or for 240VAC will be
50mA. these power inputs must be fused with a
maximum of 15A, figure 7. Minimum Allowable
operational voltage range for input is 85 VAC to
250 VAC.
Figure 16
LPS120/240
2. Connect the flow signal device to the termination
block located in the system control enclosure,
figure 8, refer to the Wiring Control Document on
page 116 in Appendix D.
2a. If used, connect the optional Inhibit Input signal to
the termination block located in the system control
enclosure, figure 8, refer to the Wiring Control
Document on page 116 in Appendix D.
Figure 17
2b. If used, connect the RS-485 communication wiring as required to the termination block located in
the system control enclosure, figure 8, refer to the
Wiring Control Document on page 116 in Appendix
D.
* ATEX installations refer to Appendix E. page 117.
Figure 18
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 15
Section 2: System Installation
CAUTION:
Excessive tubing lengths should be avoided. Installation
of the NJEX Odorization system should be as close to the
point of injection and Odorant Storage Tank as possible.
Maximum tubing length should not exceed 15’ (4.5 meters) with the tubing size maintained as indicated in this
manual. If longer tubing lengths are required consult YZ
Systems Technical Service Department at; 800.653.9435
or 1.281.362.6500.
3. Connect the pipeline port, the center 1/4” tubing
connector of the odorant discharge manifold to the
pipeline connection using a dielectric union,
figure 19.
6. If a heater option was specified with this odorizer,
120/240 VAC electricity refer to the heater wiring diagram, page 106, should be connected
to the electrical inlet located on the lower side
of the enclosure using 1/2” conduit and appropriate pack off. Power requirements for the
heater are 1.67A for the 120VAC heater, and
.833A for the 240VAC heater. Each heater is a
thermostatically controlled 200Watt unit, figure
20. Dual unit enclosures may have dual heater
elements. Values provided are per heater element.
4. Connect the regulated actuation gas source, of 75 psi
(5.17 Bar) supplied by the NJEX system owner, to the
NJEX gas filter inlet fitting using a dielectric union,
figure 19.
• For pipeline pressures less than 200 psig
a single cut regulator (Fisher 67 YZ P/N
#A3-0042 or similar) adjustable to provide
75 psig to the linlet gas filter on the NJEX
enclosure should be acceptable.
Odorant Discharge
Manifold Pipeline Port
• P/L pressure above 200 psig need a dual cut
regulation provess:
1. Intall the primary regulator on the pipeline (Fisher
1301 YZ P/N A3-0274 or similar), and adjust it to
provide 150 Psi to the secondary regulator.
2. Intall the scecondary regulator at the inlet gas filter
on the back of the NJEX enclosure (Fisher 67 YZ
P/N A3-0042 or similar), and adjust it to provide 75
psig to the NJEX system should be acceptable.
Odorant Inlet
Connection
75 psi (5.17 Bar) Regulated Actuation Gas
Figure 19
3. 3/8” Stainless Steel tubing shuld be used between
the two regulators.
• Dual pump enclosures, may require larger tubing between the regulators, and the secondary regulator may
need to have a larger orifice (Fisher 64 or simiar) if both
pumps run simultaneously.
Note: In applications where the actuation gas supply has
high water content and /or a low hydrocarbon dew point,
additional actuation gas filtration or heating of the 7300G
system may be necessary. Bottled nitrogen can also be
used during cold operating conditions to avoid condensatioin in the actualtion gas supply line. Also an actuation gas source pressure of 75 psi (5.17 Bar) should be
adequate in most installations.
5. Connect the pipeline port of the odorant discarge
manifold to the pipeline connection using a dielectric
union and check valve, figure 19.
Optional Heater
A.C. Connection
Figure 20
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 16
NJEX 7300G ver.08-2018
Section 3: Filling the Bulk Odorant Tank
Filling the Tank for the First
Time
3. To purge the tank open valve V10 to introduce
inert or natural gas to the tank to begin displacing
any ambient air from the empty tank. Continue
until pressure on the gage located directly above
V13 is observed, then partially open V11 to allow
Odorant has a very strong odor, which if allowed to
ambient air from the tank to begin flowing out.
escape to the atmosphere, may cause problems in the
Allow this process to continue until all ambient
local community. Take necessary precautions when
air from the tank is purged, and only inert gas or
filling an odorant storage tank to assure that the local
natural gas is emitting from this valve, then close
community is not disrupted during the filling process.
V11 and V10. The time required to accomplish
Verify that the entire system has no pressure in it
this task will vary with the tank size.
before beginning. Additionally, all personnel should
wear protective clothing, and use equipment as
4. Vent purge gas by opening V11 partially until tank
recommended by the chemical manufacturer during
pressure just reaches zero, and then close V11.
this time. If you are uncertain about any aspect of the
odorant itself, you should contact the manufacturer of 5. Attach odorant supply to V10, open V10, and
your chemical prior to proceeding.
begin transferring odorant to the bulk tank.
CAUTION:
1. Verify correct position of valves before beginning,
figure 21.
Open: V12, and V13*
6. Connect a line from V11 to a flare or vapor recovery device, and open V11.
Closed: V10, V11, and V15
*Note Gas Supply to V13 should NOT be turned
on during this procedure.
Fill tank to a maximum level of 80% of the tank capacity.
2. Attach inert or natural gas supply to V10.
CAUTION:
7. Close V10 and V11, and remove odorant transfer equipment, and line to flare or vapor recovery
device.
8. Continue through the remaining procedures in this
manual.
Electronic Level Indicator
Odorant Vapor Return
1/2” NPT
Odorant Fill
1/2” NPT
V15 V13
V12
V11
V10
Figure 21
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 17
Section 3: Filling the Bulk Odorant Tank
Refilling the Bulk Odorant Tank
CAUTION:
Odorant has a very strong odor, which if allowed to
escape to the atmosphere, may cause problems in
the local community. Take necessary precautions
when filling an odorant storage tank to assure that
the local community is not disrupted during the filling
process. Verify that the entire system has no pressure in it before beginning. Additionally all personnel
should wear protective clothing, and use equipment as
recommended by the chemical manufacturer during
this time. If you are uncertain about any aspect of the
odorant itself, you should contact the manufacturer of
your chemical prior to proceeding.
1. Place the N-300G controller in the Standby Mode
by pressing the Standby key.
2. Verify correct position of valves before beginning,
figure 22.
3. Connect a line from V11 to a flare or vapor recovery device, and open V11.
4. Attach odorant supply to V10, open V10, and
begin transferring odorant to the bulk tank.
CAUTION:
Fill tank to a maximum level of 80% of the tank capacity.
5. Close V10 and V11, and remove odorant transfer equipment, and line to flare or vapor recovery
device.
6. Open V13 and V15.
7. Place the N-300G controller in the Run Mode by
pressing the Standby key.
Open: V12
Closed: V10, V11, V13, V15
Electronic Level Indicator
Odorant Vapor Return
1/2” NPT
Odorant Fill
1/2” NPT
V15
V13
V12
V11
V10
Figure 22
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 18
NJEX 7300G ver.08-2018
Section 4: System Control & Electronics
Overview
The 7300G control/electronics system is composed
of the system control enclosure and the SPS-12 solar
charged power supply, or a LPS 120/240 charger
supply, figure 23. Individual components of the system
are shown below and are described in the following
pages. A flow chart of the N-300G controller menu
system is illustrated on the N-300G Display Diagram
located on page 115 in Appendix D: Documents.
To Use The Key Pad
The three main keys have multiple function capabilities. Each key is labeled with it’s primary function used
in moving through the menu, they are as follows:
Select / Enter
Power Supply
System Control
Enclosure
Figure 23
pmp bat vmtr sig tnk
PropFlow
Idle
*Strt *Dsp *Set
The Select / Enter Key Up Arrow Key & Down Arrow Key
These keys also have alternative functions. These alternative functions will be reflected in the commands,
proceeded by an asterisk “*”, that appear in a corresponding position to the key on the N-300G display.
For example in figure 24:
• To choose
*Start, you would press the Select / Enter key.
• To choose *Dsp, you would select the
Key.
• To choose *Set, you would select the
Key.
Figure 24
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 19
Section 4: System Control & Electronics
To Power Up The System
pmp bat vmtr sig tnk
PropFlow
Idle
*Stop *Dsp *Set
Open the N-300G Controller Enclosure, figure 25, and
find the toggle switch S1 located just below center on
the right side of the Printed Circuit Board – PCB. Turn
on the main power switch by toggling the switch to up
position.
Once powered-up, the menu sequence, figure 26,
will appear. Follow the menu instructions on the LCD
screen as they are presented.
Check to ensure the serial number and model type
shown match the serial number and model type on the
left side of the electronics enclosure and on the inside
of mechanical enclosure door. Also check to ensure
the verometer calibration number matches the verometer tag number located at the top of the verometer
assembly, figures 27, 28 & 29.
Next you may have the option of accepting a set of
Pre-Configured operating parameters, that have been
programmed into the Sentry Module, figure 30. This
option will only come up if it has been set up in Sentry
and not previously uploaded.
Record the version x.xx number, figure 31, in the For
the Record Form located on Page 113 in Appendix
C: Forms of this manual for future reference.
IMPORTANT:
If the serial number, model type, or the verometer tag
number do not match the corresponding numbers in
the N-300G controller consult the factory before proceeding further.
S1
Figure 25
Display Contrast Adj
50%
22C
Figure 26
Serial Number
20000
Figure 27
Model Type
7300GE
Figure 28
Verometer Calibrate
154.20 Calibrate cc
Figure 29
Pre-Configure Parms?
*Yes *No
Figure 30
N300GE
Ver 1.02
--NJEX--
Figure 31
pmp bat vmtr sig tnk
PropFlow
Idle
*Strt *Dsp *Set
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 20
NJEX 7300G ver.08-2018
Section 4: System Control & Electronics
Test & Standby Keys
The Test key, figure 32, is located in the upper right
quadrant of the N-300G touch pad and is used to
manually stroke the pump. Simply press the test key
touch pad to stroke the pump. Each time the test key
is pushed, the pump should actuate and the N-300G
display will show Strk just above the Test key touch
pad. The strokes signaled counter will advance for
each stroke of the pump. The odorant injected counter
will also advance when the pump displaces a sufficient volume of odorant to register .001 lb (.001 kg) of
odorant.
The Standby key, , figure 32, allows the operator to
locally inhibit the operation of the N-300G controller.
This creates a standby mode for the 7300G system.
In the event of a no flow condition in the pipeline, the
operator can switch the 7300G to a standby mode for
extended periods of time, or to temporarily suspend
operation of the system for maintenance. When flow
is initiated once more, or the maintenance has been
completed, the 7300G can be switched from standby
to operation without the need to restart the N-300G
controller.
pmp bat vmtr sig tnk
PropFlow
0:00
*Stop *Dsp *Set
Figure 32
Remote Inhibit Mode, can also be applied to interrupt
odorization in a manner similar to the standby mode
however, it is initiated by applying a dry contact, or
open collector signal, to the termination board TB1,
terminals #9 and #10 , figure 33, refer to the Wiring
Control Document on page 116 in Appendix D: Documents. The Remote Inhibit Mode’s function is identical to the Standby Mode. Activation will be indicated
on the N-300G display and the Sentry4 event file
differently. Rmt Inhb will appear on the N-300 main
screen display where the count down time normally
appears, figure 33.
pmp bat vmtr sig tnk
PropFlow
Rmt Inhb
*Stop *Dsp *Set
Figure 33
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 21
Section 4: System Control & Electronics
Battery & Solar Panel Assembly
Solar Panel
The 7300G standard system is solar powered using a
five watt solar panel, and a Solar Power Supply –
SPS-12 which includes a regulator and 12 volt DC
battery, figures 34 & 35. The 7300G will operate approximately 30 days without additional power generated by the solar panel. The battery is continuously
monitored and an alarm signal is sent if the voltage
falls below 11.0 volts. During normal operation the
LED, located on the front of the SPS-12 will illuminate.
If AC power is available, the solar panel can be
replaced with an optional 120/240 AC/DC Line Power
Supply – LPS, figure 36, intrinsically safe barrier, and
an enclosure for Class I, Division 1, Group C, D locations. The battery is included in the system to provide
system operation and back up power for up to 30
days, in the event of an AC power failure.
LPS and Battery w/Cover Removed
Figure 36
Figure 34
SPS and Battery w/Cover Removed
Figure 35
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 22
NJEX 7300G ver.08-2018
Section 4: System Control & Electronics
Communications Interface
There are three methods of communicating information out of the N-300 controller.
• Method 1, utilizes Communications Modbus protocol. Specifications to permit configuration can
be found on page 107, Appendix B: N300 Modbus
Specifications.
• Method 2, utilizes the Sentry Software installed on
a computer. In this mode the computer can communicate with the NJEX system & obtain information,
or the NJEX system may be configured to notify the
computer and provide it with information.
• Connections for Method 1 or 2 are via an RS-485
two wire connection. In a safe, nonhazardous area
this may be connected to a RS-232 converter for
interface with a SCADA system if required.
• Method 3, utilizes two output relays. One relay is for
Alarm Output, and provides single output communication to indicate some type of some alarm has
occurred with the odorizer. The second output relay
is for a Scaled Pulse relative to a programed volume of odorant injected by the system, refer to the
Wiring Control Document on page 116 in Appendix
D: Documents.
Comm-Link Configuration
The 7300G system may be communicated to through
on one or two available RS485 communication ports.
The N-300 Modbus specification can be found on
page 107, Appendix B: N300 Modbus Specifications.
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 23
Section 4: System Control & Electronics
Notes
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 24
NJEX 7300G ver.08-2018
Section 5: Programming for Proportional-to-Flow Operation
Setting Operator Input Parameters
*designates optional key function
• Choose Set in the main menu, figure 37.
• Choose Par – parameters in the set selection menu,
figure 38.
• Choose Flow in the set parameters menu, figure 39.
Figure 37
Figure 38
• Choose Set in the proportional-to-flow menu, figure
40.
Figure 39
Setting the odorant injection rate in lbs/MMCF
(mg/m3) of gas
To set the injection rate, figure 41, press and release
the Select key. The value entry will begin to flash
when chosen. Use the Up Arrow key to increase the
value and the Down Arrow key to decrease the value.
When a new value has been chosen, press the Enter
key to store the new value into memory. The entered
value will stop flashing when it has been loaded into
memory. Press the Down Arrow key to advance to
the next parameter.
Pump displacement in cc/stroke
To set the pump displacement, figure 42, press and
release the Select key. The value entry will begin to
flash when chosen. Use the Up Arrow key to increase the value and the Down Arrow key to decrease the value. When a new value has been chosen, press the Enter key to store the new value into
memory. The entered value will stop flashing when it
has been loaded into memory. Press the Down Arrow key to advance to the next parameter.
Figure 40
pmp bat vmtr sig tnk
PropFlow
Idle
*Strt *Dsp *Set
pmp bat vmtr sig tnk
Set Selection
*Par *Cal *Esc
pmp bat vmtr sig tnk
pmp bat
sig tnk
Set vmtr
Parameters
Set*Time
Parameters
*Flow
*Esc
*Flow *Time *Esc
pmp bat vmtr sig tnk
Proportional to Flow
*Set *Alarm *Esc
Or
pmp bat vmtr sig tnk
Injection Rate
1.00
lbs/MMCF
Figure 41
Figure 42
Select
Enter
pmp bat vmtr sig tnk
Pump Displaceplent
1.000
cc/Stroke
Select
Enter
Odorant density in lbs/gallon (g/cc) @ 60º F
To set the odorant density, figure 43, press and
release the Select key. The value entry will begin
to flash when chosen. Use the Up Arrow key to
increase the value and the Down Arrow key to
decrease the value. When a new value has been chosen, press the Enter key to store the new value into
memory. The entered value will stop flashing when it
has been loaded into memory. Press the Down Arrow
key to advance to the next parameter.
pmp bat vmtr sig tnk
Injection Rate
16.0
mg/m3
Or
pmp bat vmtr sig tnk
Odorant Density
6.80
lbs/Gal
Figure 43
pmp bat vmtr sig tnk
Odorant Density
0.815
9/cc
Select
Enter
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 25
Section 5: Programming for Proportional-to-Flow Operation
Setting Operator Input Parameters,
Continued
Or
Max gas flow in MMCF/Hour (m3/sec)
Max gas flow is the maximum flow rate at which the
flow input reaches full scale span.
To set the max gas flow, figure 44, press and release
the Select key. The value entry will begin to flash
when selected. Use the Up Arrow key to increase the
value and the Down Arrow key to decrease the value.
When a new value has been chosen, press the Enter
key to store the new value into memory. The entered
value will stop flashing when it has been loaded into
the memory. Press the Down Arrow key to advance
to the next parameter.
pmp bat vmtr sig tnk
Maximum Gas Flow
5.000 MMCF/hr
pmp bat vmtr sig tnk
Maximum Gas Flow
15.00 m3/sec
Figure 44
Low Flow Shutoff
The low flow shut off setting, allows a preset
point in a percentage of max gas flow desired to the
N-300G to stop injecting odorant. This allows the
controller to sense low flow conditions where the
operation is not desired. This setting will override the
max time /stroke setting parameter. When flow again
increases above the preset point the N-300G resumes
operation.
Figure 45
pmp bat vmtr sig tnk
Low Flow Shutoff
2.0% Max Gas Flow
To set the low flow shut off, figure 45, press and
release the Select key. The value entry will begin
to flash when selected. Use the Up Arrow key to
increase the value and the Down Arrow key to decrease the value. When a new value has been chosen, press the Enter key to store the new value into
memory. The entered value will stop flashing when it
has been loaded into the memory. Press the Down
Arrow key to advance to the next parameter.
Flow (no signal)
The flow (no signal) input setting, is the predetermined percentage of max gas flow that the operator
would like the controller to default to in the event that
the actual flow input signal is lost.
Figure 46
pmp bat vmtr sig tnk
Flow (No Signal)
20.0% Max Gas Flow
Note: the Flow (no signal) input functions will only
be active with analog input signals 1-5 VDC and 4-20
mA.
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 26
NJEX 7300G ver.08-2018
Section 5: Programming for Proportional-to-Flow Operation
To set the flow (no signal) input, figure 46a, press
and release the Select key. The value entry will begin
to flash when selected. Use the Up Arrow key to
increase the value and the Down Arrow key to decrease the value. When a new value has been chosen, press the Enter key to store the new value into
memory. The entered value will stop flashing when it
has been loaded into the memory. Press the Down
Arrow key to advance to the next parameter.
Figure 46a
pmp bat vmtr sig tnk
Flow (No Signal)
20.0% Max Gas Flow
Maximum Time/Stroke
The maximum time/stroke setting, is the maximum
time between strokes, when a stroke time is actually
calculated, desired regardless of the time calculated
by the controller. This feature is not active under lowflow or no-flow conditions.
Figure 47
pmp bat vmtr sig tnk
Maximum Time/Stroke
0 = Disabled
To set the maximum time/stroke, figure 47, press
and release the Select key. The value entry will begin
to flash when selected. Use the Up Arrow key to
increase the value and the Down Arrow key to decrease the value. When a new value has been chosen, press the Enter key to store the new value into
memory. The entered value will stop flashing when it
has been loaded into memory. Press the Down Arrow key to advance to the next parameter.
The Odorant Output Setting
The odorant output setting, controls the scaling of
the odorant output relay in lbs/pulse (kg/pulse). This
indicates how much odorant has been injected with
each pulse of the output relay located TB1, terminals
#19 and #20, refer to the Wiring Control Document on
page 116 in Appendix D: Documents.
Or
pmp bat vmtr sig tnk
Odorant Output
0.010 lbs/pulse
pmp bat vmtr sig tnk
Odorant Output
0.010 kg/pulse
Figure 48
To set the odorant output, figure 48, press and
release the Select key. The value entry will begin
to flash when selected. Use the Up Arrow key to
increase the value and the Down Arrow key to decrease the value. When a new value has been chosen, press the Enter key to store the new value into
memory. The entered value will stop flashing when it
has been loaded into memory. Press the Down Arrow key to advance to the next parameter.
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 27
Section 5: Programming for Proportional-to-Flow Operation
Setting Operator Input Parameters,
Continued
Odorant Tank
Optional Set-up: Functional ONLY if a complete YZ
Skid Mounted Tank System is supplied.
1. Disabled: no level monitoring, 0% = disabled,
both Low & High settings must be disabled.
2. Enabled: 0-100% level monitoring with two
alarms that may be triggered from this level reading, a High Tank Level Tank Alarm, and a Low
Tank Level Tank Alarm.
To set the alarm level points, figure 49, press and
release the Select key. The Low Level value will
begin to flash when chosen. Use the Up Arrow key
to increase the value and the Down Arrow key to
decrease the value. This alarm should typically be
set between 5% and 25%. When a new value has
been chosen, press the Enter key to store the new
Low Level Alarm setting into memory. The entered
value will stop flashing when it has been loaded into
memory, the High Level value will begin to flash. Use
the Up Arrow key to increase the value and the Down
Arrow key to decrease the desired value. This alarm
should typically be set at less than 80%. When a new
value has been chosen, press the Enter key to store
the new High Level Alarm setting into memory. Press
the Down Arrow key to advance to the next menu.
Figure 49
pmp bat vmtr sig tnk
Odorant Tank
10=Low (%) 90=High
Select
Enter
Or
pmp bat vmtr sig tnk
Expansion Tank (psi)
20.0=Low 30.0=High
Figure 50
pmp bat vmtr sig tnk
Expansion Tanks (bar)
1.40=Low 2.00=High
Select
Enter
Expansion Tank Pressure Monitoring
Typical expansion tank pressure is approximately 25
psi (1.72 Bar). There are two alarms that can be triggered, a High Pressure Expansion Tank Alarm, and a
Low Pressure Expansion Tank Alarm, figure 50.
1. Disabled: no expansion tank pressure monitoring, 0% = disabled, both Low & High settings must
be disabled. Normal operation should have this
function enabled.
2. Enabled: Low Level should typically be set @ 23
psi (1.58 Bar), but is adjustable from 0 psi (0 Bar)
up to the high level set point. High Level should
typically be set @ 27 psi (1.86 Bar), but is adjustable from 0 psi (0 Bar) up to 99 psi (6.82 Bar).
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 28
NJEX 7300G ver.08-2018
Section 5: Programming for Proportional-to-Flow Operation
To set the alarm level points, figure 51, press and
release the Select key. The Low Pressure value
will begin to flash when chosen. Use the Up Arrow
key to increase the value and the Down Arrow key
to decrease the value. When a new value has been
chosen, press the Enter key to store the new Low
Pressure setting into memory. The entered value will
stop flashing when it has been loaded into memory.
Next the High Pressure value will begin to flash. Use
the Up Arrow key to increase the value and the Down
Arrow key to decrease the value. When a new value
has been chosen, press the Enter key to store the
new High Pressure setting into memory. Press the
Down Arrow key to advance to the next menu.
Or
pmp bat vmtr sig tnk
Expansion Tanks (bar)
1.40=Low 2.00=High
pmp bat vmtr sig tnk
Expansion Tank (psi)
20.0=Low 30.0=High
Figure 51
Odorant Inlet Pressure Monitoring
For the fill valve to function correctly a pressure differential between the Bulk Odorant Storage Tank and
the Expansion Tank, must be maintained. This differential should never be less than 5 psi (.35 Bar) and
typically not more than 10 psi (.69 Bar). There are two
alarms that may be triggered from the Odorant Inlet
Pressure reading, a High Odorant Inlet Alarm, and a
Low Odorant Inlet Alarm.
To set the alarm level points, figure 52, press and
release the Select key. The Odor Inlet Low value will
begin to flash when chosen. Nominal low pressure in
the Odorant Storage Tank is 30 psi (2.07 Bar). Use
the Up Arrow key to increase the value and the Down
Arrow key to decrease the value. When a new value
has been chosen, press the Enter key to store the
new Odor Inlet Low setting into memory. The entered
value will stop flashing when it has been loaded into
memory. Next the Odor Inlet High value will begin to
flash. Nominal high pressure in the Odorant Storage Tank is 35 psi (2.41 Bar). Use the Up Arrow key
to increase the value and the Down Arrow key to
decrease the value. When a new value has been
chosen, press the Enter key to store the new Odor Inlet High setting into memory. Press the Down Arrow
key to advance to the next menu.
Or
pmp bat vmtr sig tnk
Odorant Inlet (psi)
25.0=Low 40.0=High
pmp bat vmtr sig tnk
Odorant Inlet (bar)
1.70=Low 2.80=High
Figure 52
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 29
Section 5: Programming for Proportional-to-Flow Operation
Setting Operator Input Parameters,
Continued
Alarm to Relay Delay
Is a programmable time that can be entered to allow
for a period of time to occur between the initial issuance of an alarm and the actual remote reporting of
the alarm via the alarm relay output.
Figure 53
pmp bat vmtr sig tnk
pmp
bat vmtr
sig tnk
Maximum
Time/Stroke
Alarm
Relay Delay
0 =to
Disabled
0 minutes
Select
Enter
1. 0 = No Relay Contact Delay
2. 1 - 240 = Number of Minutes Delay
3. > 240 = Disabled, No Alarm Relay Contact will occur
To set the alarm delay time, figure 53, press and
release the Select key. The Alarm to Delay value
will begin to flash when chosen. Use the Up Arrow
key to increase the value and the Down Arrow key
to decrease the value. When a new value has been
chosen, press the Enter key to store the value.
Alarm to Call Out Delay
Is a programmable time that can be entered to allow
for a period of time to occur between the initial issuance of an alarm and the actual automatic call out
function via a modem or Modbus communication port.
Figure 54
pmp bat vmtr sig tnk
Alarm to Callout Dly
0 minutes
1. 0 = No Alarm Call Out Delay
2. 1 - 240 = Number of Minutes Delay
3. > 240 = Disabled, No Alarm Call Out will occur
To set the alarm to call out delay time, figure 54,
press and release the Select key. The Alarm to Callout Delay value will begin to flash when chosen. Use
the Up Arrow key to increase the value and the Down
Arrow key to decrease the value. When a new value
has been chosen, press the Enter key to store the
value.
MODBUS Address
In Modbus Protocol, each piece of equipment that will
be polled for information must be assigned a Slave I.D.
address, to allow the SCADA or other Host device to
properly address the device to be polled for information.
This parameter is to program the odorizer’s Modbus address. Any address from 1-247 may be programed. If 0
Figure 55
pmp bat vmtr sig tnk
MODBUS Address
1 Device Address
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 30
NJEX 7300G ver.08-2018
Section 5: Programming for Proportional-to-Flow Operation
is programed this function will be disabled, figure 55.
Conclusion
This concludes programming the N-300G controller
Note: the Modbus address is also used as the Sentry4 in Proportional-to-Flow Mode. If this NJEX System is
I.D.
the only unit that will be initialized at this time, Section
7, page 39, Calibrating Signal Inputs, will contain the
MODBUS Parameters
next appropriate information on the NJEX 7300 based
There are 4 items of information that may be entered
on Proportional-to-Flow Mode operation. If other
on this screen. They are baud, parity, framing mode,
NJEX units will be operating in Proportional-to-Time
comm port designation, figure 56.
Mode then proceed to the following Section 6.
• 1st press the Enter / Select key and the baud rate
window will begin to flash. Next use the Up Arrow
or Down Arrow key to increment the value to the
required baud rate of your Modbus system. Available baud rates are 1200, 2400, 4800, and 9600.
• Next press the Enter / Select key and the parity
window will begin to flash. Next use the Up Arrow
or Down Arrow key to increment the value to the
required parity of your Modbus system. Parity options are odd, even, and none.
Figure 56
pmp bat vmtr sig tnk
MODBUS Parameters
9600,N,RTU Comm=1.
• The 3rd pressing of the Enter / Select key will bring
you to the framing mode window will begin to flash.
Next use the Up Arrow or Down Arrow key to
increment the value to the required framing mode of
your Modbus system. Available options are: RTU or
ASCII.
• The final time you press the Enter / Select key, the
comm port selection can be made. The N-300 has
two comm ports. Use the Up Arrow or Down Arrow
key to increment the value to select one of three options:
MODBUS Parameters
COMM = . . ONLY Communications Port #2 will be
available for communications using Sentry Software Communications Protocol.
COMM = 1 . Communications Port #1 will be available
for Modbuss Communications, and Communications Port #2 will be available for communications
using Sentry Software Communications Protocol.
COMM = 1 2 Communications Port #1 and Communications Port #2 will be available for Modbuss
Communications, and NO ports will be available
for communications using Sentry Software Communications Protocol.
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 31
Section 5: Programming for Proportional-to-Flow Operation
Notes
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 32
NJEX 7300G ver.08-2018
Section 6: Programming for Proportional-to-Time Operation
Setting Operator Input Parameters
Choose Set from the main menu, figure 57.
Choose Par from the set selection menu, figure 58.
Choose Time from the set parameters menu,
figure 59.
Choose Set from the proportional-to-time menu,
figure 60.
*designates optional key function
Figure 57
pmp bat vmtr sig tnk
Set Selection
*Cal
*Esc
Figure 58 *Par
Figure 59
Pump displacement in cc/stroke
To set the pump displacement, figure 61, press and
release the Select key. The value entry will begin to
flash when chosen. Use the Up Arrow key to increase the value and the Down Arrow key to decrease the value. When a new value has been chosen, press the Enter key to store the new value into
memory. The entered value will stop flashing when it
has been loaded into memory. Press the Down
Arrow key to advance to the next parameter.
pmp bat vmtr sig tnk
PropFlow
Idle
*Strt *Dsp *Set
Figure 60
Figure 61
pmp bat vmtr sig tnk
Set Parameters
*Flow *Time
*Esc
pmp bat vmtr sig tnk
Proportional to Time
*Set *Alarm
*Esc
pmp bat vmtr sig tnk
Pump Displacement
1.000
cc/Stroke
Select
Enter
Odorant density in lbs/gallon (g/cc.) @ 60ºF
To set the odorant density, figure 62, press and
release the Select key. The value entry will begin
to flash when selected. Use the Up Arrow key to
increase the value and the Down Arrow key to
decrease the value. When a new value has been chosen, press the Enter key to store the new value into
memory. The entered value will stop flashing when it
has been loaded into memory. Press the Down Arrow
key to advance to the next parameter.
Or
pmp bat vmtr sig tnk
Odorant Density
6.80
lbs/Gal
Figure 62
pmp bat vmtr sig tnk
Odorant Density
0.815
9/cc
Select
Enter
Time interval between strokes of the pump in
xx.xx minutes/stroke:
1. 0.00 minutes = proportional-to-time disabled.
2. 0.02 to 99.99 minutes = proportional-to-time enabled.
To set the time/strokes, figure 63, press and release
the Select key. The value entry will begin to flash
when chosen. Use the Up Arrow key to increase the
value and the Down Arrow key to decrease the value.
Figure 63
pmp bat vmtr sig tnk
Set Time Per Stroke
0.50 minutes
Select
Enter
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 33
Section 6: Programming for Proportional-to-Time Operation
Setting Operator Input Parameters,
Continued
When a new value has been chosen, press the Enter
key to store the new value into memory. The entered
value will stop flashing when it has been loaded into
memory. Press the Down Arrow key to advance to the
next parameter.
The Odorant Output Setting
This controls the scaling of the odorant output relay in
lbs/pulse. This indicates how much odorant has been
injected with each pulse of the output relay located
TB1, terminals #19 and #20 , refer to the Wiring Control
Document on page 116 in Appendix D: Documents.
Or
pmp bat vmtr sig tnk
Odorant Output
0.010 lbs/pulse
pmp bat vmtr sig tnk
Odorant Output
0.010 kg/pulse
Figure 64
To set the odorant output, figure 64, press and
release the Select key. The value entry will begin to
flash when selected. Use the Up Arrow key to increase the value and the Down Arrow key to decrease
the value. When a new value has been chosen, press
the Enter key to store the new value into memory.
The entered value will stop flashing when it has been
loaded into memory. Press the Down Arrow key to
advance to the next parameter.
Odorant Tank
Optional Setup Note: This parameter functions only if
a complete YZ Skid Mounted Tank System is supplied.
1. Disabled: no level monitoring, 0% = disabled,
both Low & High settings must be disabled.
2. Enabled: 0-100% level monitoring with two alarms
that may be triggered from this level reading, a
High Tank Level Tank Alarm, and a Low Tank Level
Tank Alarm.
Figure 65
pmp bat vmtr sig tnk
Odorant Tank
10=Low (%) 90=High
To set the alarm level points, figure 65, press and release the Select key. The Low Level value will begin to
flash when chosen. Use the Up Arrow key to increase
the value and the Down Arrow key to decrease the
value. This alarm should typically be set between 5%
and 25%. When a new value has been chosen, press
the Enter key to store the new Low Level Alarm setting
into memory. The entered value will stop flashing when
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 34
NJEX 7300G ver. 08-2018
Section 6: Programming for Proportional-to-Time Operation
it has been loaded into memory, the High Level value
will begin to flash. Use the Up Arrow key to increase
the value and the Down Arrow key to decrease the desired value. This alarm should typically be set at less
than 80%. When a new value has been chosen, press
the Enter key to store the new High Level Alarm setting
into memory. Press the Down Arrow key to advance
to the next menu.
Or
Expansion Tank Pressure Monitoring
The expansion tank pressure should typically remain at
approximately 25 psi (1.72 Bar). There are two alarms
that can be triggered a High Pressure Expansion Tank
Alarm, and a Low Pressure Expansion Tank Alarm.
pmp bat vmtr sig tnk
Expansion Tank (psi)
20.0=Low
30.0=High
pmp bat vmtr sig tnk
Expansion Tank (bar)
1.40=Low
2.00=High
Figure 66
1. Disabled: no expansion tank pressure monitoring,
0 = disabled, Both Low & High settings must be
disabled. Normal operation should have this function enabled.
2. Enabled: Low Level should typically be set @ 23
psi (1.58 Bar), but is adjustable from 0 psi (0 Bar)
up to the high level set point. High Level should
typically be set @ 27 psi (1.86 Bar), but is adjustable from 0 psi (0 Bar) up to 99 psi (6.82 Bar).
To set the alarm level points, figure 66, press and release the Select key. The Low Pressure value will begin to flash when chosen. Use the Up Arrow key to increase the value and the Down Arrow key to decrease
the value. When a new value has been chosen, press
the Enter key to store the new Low Pressure setting
into memory. The entered value will stop flashing when
it has been loaded into memory and the High Pressure
pmp bat vmtr sig tnk
value will begin to flash. Use the Up Arrow key to inExpansion Tank (psi)
crease the value and the Down Arrow key to decrease 20.0=Low 30.0=High
the value. When a new value has been chosen, press
Figure 67
the Enter key to store the new High Pressure setting
into memory. Press the Down Arrow key to advance
to the next menu.
Or
pmp bat vmtr sig tnk
Expansion Tank (bar)
1.40=Low
2.00=High
Odorant Inlet Pressure Monitoring
In order for the fill valve to function correctly a pressure
differential between the Bulk Odorant Storage Tank
and the Expansion Tank, must be maintained. This
differential should never be less than 5 psi (.35 Bar)
and typically not more than 10 psi (.69 Bar). There are
two alarms that can be triggered from the Odorant Inlet
Pressure reading, a High Odorant Inlet Alarm, and a
Low Odorant Inlet Alarm, figure 67.
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 35
Section 6: Programming for Proportional-to-Time Operation
Setting Operator Input Parameters,
Continued
To set the alarm level points, figure 68, press and
release the Select key. The Odorant Inlet Low value
will begin to flash when chosen. Nominal low pressure
in the Odorant Storage Tank is 30 psi (2.07 Bar). Use
the Up Arrow key to increase the value and the Down
Arrow key to decrease the value. When a new value
has been chosen, press the Enter key to store the
new Odorant Inlet Low setting into memory. The entered value will stop flashing when it has been loaded
into memory and the Odorant Inlet High value will
begin to flash. Nominal high pressure in the Odorant
Storage Tank is 35 psi (2.41 Bar). Use the Up Arrow
key to increase the value and the Down Arrow key
to decrease the value. When a new value has been
chosen, press the Enter key to store the new Odorant
Inlet High setting into memory. Press the Down Arrow key to advance to the next menu.
Or
pmp bat vmtr sig tnk
Odorant Inlet (psi)
25.0=Low
40.0=High
pmp bat vmtr sig tnk
Odorant Inlet (bar)
1.70=Low
2.80=High
Figure 68
Alarm to Relay Delay
Is a programmable time that can be entered to allow
for a period of time to occur between the initial issuance of an alarm and the actual remote reporting of
the alarm via the alarm relay output.
1. 0 = No Relay Contact Delay
2. 1 - 240 = Number of Minutes Delay
3. > 240 = Disabled, No Alarm Relay Contact will occur
Figure 69
pmp bat vmtr sig tnk
Alarm to Relay Delay
0 minutes
To set the alarm delay time, figure 69, press and
release the Select key. The Alarm to Delay value
will begin to flash when chosen. Use the Up Arrow
key to increase the value and the Down Arrow key
to decrease the value. When a new value has been
chosen, press the Enter key to store the value.
Alarm to Call Out Delay
Is a programmable time that can be entered to allow
for a period of time to occur between the initial issuance of an alarm and the actual automatic call out
function via a modem or Modbus communication port.
1. 0 = No Alarm Call Out Delay
2. 1 - 240 = Number of Minutes Delay
3. > 240 = Disabled, No Alarm Call Out will occur
pmp bat vmtr sig tnk
Alarm to Callout Dly
0 minutes
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 36
NJEX 7300G ver. 08-2018
Section 6: Programming for Proportional-to-Time Operation
To set the alarm to call out delay time, figure 70,
press and release the Select key. The Alarm to Callout
Dly value will begin to flash when chosen. Use the Up
Arrow key to increase the value and the Down Arrow
key to decrease the value. When a new value has
been chosen, press the Enter key to store the value.
MODBUS Address
Figure 70
In Modbus Protocol, each piece of equipment that will
be polled for information must be assigned a Slave
I.D. address, to allow the SCADA or other Host device
to properly address the device to be polled for information. This parameter is to program the odorizer’s
Modbus address. Any address from 1-247 may be programed. If 0 is programed this function will be disabled,
figure 71.
Note: the Modbus address is also used as the Sentry4
I.D.
Figure 71
pmp bat vmtr sig tnk
Alarm to Callout Dly
0 minutes
pmp bat vmtr sig tnk
MODBUS Address
1 Device Address
MODBUS Parameters
There are 4 items of information that may be entered
on this screen. They are baud, parity, framing mode,
comm port designation, figure 72.
• 1st press the Enter / Select key and the baud rate
window will begin to flash. Next use the Up Arrow
or Down Arrow key to increment the value to the
required baud rate of your Modbus system. Available
baud rates are 1200, 2400, 4800, and 9600.
• Next press the Enter / Select key and the parity
window will begin to flash. Next use the Up Arrow
or Down Arrow key to increment the value to the required parity of your Modbus system. Parity options
are odd, even, and none.
Figure 72
pmp bat vmtr sig tnk
MODBUS Parameters
9600,N,RTU Comm=1.
• The 3rd pressing of the Enter / Select key will bring
you to the framing mode window will begin to flash.
Next use the Up Arrow or Down Arrow key to
increment the value to the required framing mode of
your Modbus system. Available options are: RTU or
ASCII.
• The final time you press the Enter / Select key, the
comm port selection can be made. The N-300 has
two comm ports. Use the Up Arrow or Down Arrow
key to increment the value to select one of three options:
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 37
Section 6: Programming for Proportional-to-Time Operation
Setting Operator Input Parameters,
Continued
MODBUS Parameters
COMM = . . ONLY Communications Port #2 will be
available for communications using Sentry Software Communications Protocol.
COMM = 1 . Communications Port #1 will be available
for Modbuss Communications, and Communications Port #2 will be available for communications
using Sentry Software Communications Protocol.
COMM = 1 2 Communications Port #1 and Communications Port #2 will be available for Modbuss
Communications, and NO ports will be available
for communications using Sentry Software Communications Protocol.
Conclusion
This concludes programming the N-300G controller in Proportional-to-Time Mode. If the NJEX 7300
System is the only unit that will be initialized at this
time the following Section 7, Calibrating Signal Inputs
will contain the next appropriate information based on
Proportional-to-Time Mode operation.
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 38
NJEX 7300G ver. 08-2018
Section 7: Calibrating Signal Inputs
Analog Flow Input Calibration,
1-5 VDC / 4-20 mA
IMPORTANT:
Many factors effect the signal between the signal
source and the NJEX System. Elements of the signal
electrical system such as the gauge and length of the
wire, isolation barrier, grounding, transient voltages,
and the condition of the signal generated by the flow
device can effect the signal and how that signal is
received by the NJEX System. To truly calibrate the
NJEX System to the signal, use only the flow equipment that will be part of the odorization system such
as; a flow computer, RTU, PLC, pulse index drive, or
differential pressure transducer.
Figure 73
Figure 74
Figure 75
Figure 76
Choose *Set in the main menu, figure 73.
Choose *Cal in the set selection menu, figure 74.
Figure 77
Choose *Inputs in the calibration set menu, figure 75.
Choose *Flow in the calibration selection menu,
figure 76.
Choose *Ang in the flow input type menu, for analog
voltage or current inputs, i.e., 1-5VDC or 4-20mA,
figure 77.
Choose *Lin for input signals that are linear with
respect to flow i.e., flow computers, RTU’s, etc, figure
78.
-ORChoose *NonLin for input signals that are non-linear
with respect to flow i.e., differential pressure transmitters, etc., figure 78.
Figure 78
pmp bat vmtr sig tnk
PropFlow
Idle
*Strt
*Dsp *Set
pmp bat vmtr sig tnk
Set Selection
*Par *Cal
*Esc
pmp bat vmtr sig tnk
Calibration Set
*Clk *Inputs *Esc
pmp bat vmtr sig tnk
Calibration
*Flow *Pres *Esc
pmp bat vmtr sig tnk
Flow Input Type
*Ang *Pulse *Esc
pmp bat vmtr sig tnk
Analog Input
*Lin
*NLin *Esc
Or
pmp bat vmtr sig tnk
Linear Input
*Zero *Span *Esc
Figure 79
Figure 80
pmp bat vmtr sig tnk
Non Linear Input
*Zero *Span *Esc
Or
pmp bat vmtr sig tnk
Zero Adjustment
*Read
1.0V *Esc
Choose *Zero to calibrate the zero set point, figure 79.
Zero Adjustment, figure 80, is used to calibrate the
N-300G controller for 0% of the metered flow in the
pipeline. The N-300G is factory calibrated for 0% of
flow to directly correspond to 1.00 VDC (4.0 mA) at
the flow input terminal board TB1 terminals #2 and
#3,refer to the Wiring Control Document on page 116 in
Appendix D: Documents.
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 39
Section 7: Calibrating Signal Inputs
Analog Flow Input Calibration,
1-5 VDC / 4-20 mA, Continued
To calibrate the zero set point, figure 81, apply 1.00
VDC (4.0 mA) to the TB1 terminal #2 (+ positive signal input) and terminal #3 (- negative signal input). If
a Differential Pressure Transducer – DPT is used, output from the transmitter should be 1.00 VDC (4.0mA)
at 0 inches of water column differential (0” w.c.).
Figure 81
pmp bat vmtr sig tnk
Zero Adjustment
*Read
1.0V
*Esc
1. Press & release the *Read key and the voltage
present at the input terminals will be shown flashing in the display.
2. Press & release the *Accept key to load the zero
point into the memory. This value will stop flashing when this is completed, figure 82.
Or
pmp bat vmtr sig tnk
Zero Adjustment
*Accept *1.0v *Esc
pmp bat vmtr sig tnk
Zero Adjustment
ERROR 2.0v *Esc
Figure 82
Figure 83
Note: if an error message appears, figure 83, the
voltage at the input terminal is outside of the calibration range of .6V -1.4VDC (2.4 mA - 5.6 mA).
Choose Span to calibrate the full span set point,
figure 84, the span adjustment is used to calibrate
the N-300G controller for 100% of metered flow in the
pipeline. The N-300G is factory calibrated for 100%
of flow to directly correspond to 5.00 VDC (20 mA) at
the flow input terminal board TB1 terminals #2 and #3,
refer to the Wiring Control Document on page 116 in
Appendix D: Documents.
To calibrate the span set point, apply 5.00 VDC (20
mA) to TB1 terminal #2 (+ positive signal input) and
terminal #3 (- negative signal input). If a DPT is used,
output from the transmitter should be 5.00 VDC (20
mA) at maximum range of the meter, for example 5.00
VDC (20 mA) at 100 inches of water column differential (100” w.c.).
1. Press & release the *Read key and the voltage
present at the input terminals will be shown flashing in the display, figure 85.
pmp bat vmtr sig tnk
Linear Input
*Zero *Span *Esc
pmp bat vmtr sig tnk
Non Linear Input
*Zero *Span *Esc
Figure 84
Or
Figure 85
pmp bat vmtr sig tnk
Span Adjustment
*Read 5.0V *Esc
Or
pmp bat vmtr sig tnk
Span Adjustment
*Accept 5.0V *Esc
Figure 86
pmp bat vmtr sig tnk
Span Adjustment
ERROR 2.0V *Esc
Figure 87
2. Press & release the *Accept key to load the span
setting into the memory. This value will stop flashing when this is completed, figure 86.
Note: if an error message appears, figure 87, the
voltage at the input terminal is outside of the calibration range of 3.0V-5.5VDC (12 mA - 22 mA).
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 40
NJEX 7300G ver. 08-2018
Section 7: Calibrating Signal Inputs
Expansion Tank Pressure
Transmitter Zero Calibration
Note: the N-300G should be in the stopped mode
when performing the following calibrations.
Choose *Set in the main menu, figure 88.
Choose *Cal in the set selection menu, figure 89.
Figure 88
pmp bat vmtr sig tnk
PropFlow
Idle
*Strt *Dsp *Set
Choose *Inputs in the calibration set menu, figure 90.
Choose *Pres in the calibration menu, figure 91.
Choose *XTank in the Calibrate Pressure menu. The
transmitter voltage is 1-5VDC. The only field calibration
is the zero reference, which can be set in this display,
figure 92.
Zero Adjustment, is used to calibrate the N-300G controller to a zero pressure reference point. The transmitter is factory calibrated for the span value referenced to
a specific pressure above this set point.
To calibrate the zero set point, remove all pressure
from the expansion tank by venting the expansion tank
pressure via valve V-5. The output from the transmitter
should be 1.00 VDC.
1. Press & release the *Read key, figure 93, and the
actual voltage present from the transmitter will be
shown flashing in the display.
2. Press & release the *Accept key , figure 94, to
load the zero point into the memory. This value will
stop flashing when this is accomplished.
Note: if an error message appears, figure 95, the voltage is outside of the calibration range of .6V-1.4VDC.
Figure 89
Figure 90
Figure 91
pmp bat vmtr sig tnk
Set Selection
*Par
*Cal *Esc
pmp bat vmtr sig tnk
Calibration Set
*Clk *Inputs *Esc
pmp bat vmtr sig tnk
Calibration
*Flow *Pres *Esc
Figure 92
pmp bat vmtr sig tnk
Calibrate Pressure
*XTnk *Odor *Esc
Figure 93
pmp bat vmtr sig tnk
Zero Adjustment
*Read 1.0V
*Esc
Or
pmp bat vmtr sig tnk
Zero Adjustment
*Accept 1.0V *Esc
Figure 94
pmp bat vmtr sig tnk
Zero Adjustment
ERROR
2.0V *Esc
Figure 95
3. If the odorant inlet transmitter requires zero calibration at this time, proceed to the Odorant Inlet Pressure Transducer Zero Calibration on page 42 prior
to pressurizing the expansion tank.
3a. Important, If the odorant inlet transmitter is not to
be zero calibrated at this time, close V5 and adjust
the expansion tank pressure back to 25 psi (1.72
Bar), by manually opening valve V4 until the proper
pressure is obtained, then close V4.
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 41
Section 7: Calibrating Signal Inputs
Odorant Inlet Pressure
Transmitter Zero Calibration
Note: the N-300G should be in the stopped mode
when performing the following calibrations.
Choose *Set in the main menu, figure 96.
Figure 96
Choose *Cal in the set selection menu, figure 97.
Choose *Inputs in the calibration set menu, figure 98.
Choose *Pres in the calibration section menu,
figure 99.
Figure 97
Figure 98
Prior to performing the odorant inlet transmitter calibration, remove all pressure from the odorant inlet by:
• Verifying that the verometer is not at the full level.
Figure 99
• Close V8.
• Close the Odorant Supply Valve V17, located at the
Bulk Odorant Filter inside of the enclosure.
• If the expansion tank has pressure in it, remove it by
venting the expansion tank pressure via V5.
Figure 100
Figure 101
pmp bat vmtr sig tnk
PropFlow
Idle
*Strt *Dsp
*Set
pmp bat vmtr sig tnk
Set Selection
*Par
*Cal *Esc
pmp bat vmtr sig tnk
Calibration Set
*Clk *Inputs *Esc
pmp bat vmtr sig tnk
Calibration
*Flow *Pres
*Esc
pmp bat vmtr sig tnk
Calibrate Pressure
*XTnk *Odor *Esc
pmp bat vmtr sig tnk
Zero Adjustment
*Read 1.0V
*Esc
• Open V3.
• In the display screen tell the verometer to fill.
• This should bring the transmitter pressure to zero.
Or
pmp bat vmtr sig tnk
Zero Adjustment
*Accept 1.0V *Esc
pmp bat vmtr sig tnk
Zero Adjustment
ERROR
2.0V *Esc
Choose *Odor in the Calibrate Pressure menu, figure
100. The transmitter voltage is 1-5VDC. The only field
calibration is the zero reference, which may be set
here.
Zero Adjustment, figure 101, is used to calibrate the
N-300G controller to a zero pressure reference point.
The transmitter is factory calibrated for the span value
referenced to a specific pressure above this set point.
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 42
NJEX 7300G ver. 08-2018
Section 7: Calibrating Signal Inputs
To calibrate the zero set point, The output from the
transmitter should be 1.00 VDC.
1. Press & release the *Read key and the actual
voltage present from the transmitter will be shown
flashing in the display, figure 102.
2. Press & release the *Accept key to load the zero
point into the memory. This value will stop flashing when this is accomplished, figure 103.
Note: if an error message appears, figure 104, the
voltage is outside of the calibration range of .6V1.4VDC.
Return all valves and pressures to normal settings
before restarting the system.
Figure 102
pmp bat vmtr sig tnk
Zero Adjustment
*Read 1.0V
*Esc
Or
pmp bat vmtr sig tnk
Zero Adjustment
*Accept 1.0V *Esc
Figure 103
pmp bat vmtr sig tnk
Zero Adjustment
ERROR
2.0V *Esc
Figure 104
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 43
Section 7: Calibrating Signal Inputs
Pulse Flow Input Calibration,
Dry Contact & Voltage Pulse
Choose *Set from the main menu, figure 105.
Figure 105
Choose *Cal from the set select menu, figure 106.
Choose *Inputs from the calibration set menu,
figure 107.
Choose *Flow from the flow input type menu,
figure 108.
Choose *Pulse from the flow input type menu for
digital pulse inputs, i.e. dry contact, voltage pulse, etc,
figure 109.
Figure 106
Figure 107
Figure 108
Calculate Pulse Input Frequency
Using the example contained in Figure 113 on page
45 a technician can calculate the Pulse Input Frequency required to effectively calibrate the NJEX
System.
Figure 109
pmp bat vmtr sig tnk
PropFlow
Idle
*Strt *Dsp *Set
pmp bat vmtr sig tnk
Set Selection
*Par *Cal *Esc
pmp bat vmtr sig tnk
Calibration Set
*Clk *Inputs *Esc
pmp bat vmtr sig tnk
Calibration
*Flow *Pres *Esc
pmp bat vmtr sig tnk
Flow Input Type
*Ang *Pulse *Esc
If the pulse input frequency is between 1-1000 pulses
per second (Hz), choose PPS, figure 110.
-ORIf the pulse input frequency is between 1-100 pulses
per minute, choose PPM, figure 110.
Span Adjustment, is used to calibrate the N-300G
controller for 100% of metered flow at maximum input
frequency, i.e. 100 pulses per second at maximum
gas flow.
To set the span adjustment, figure 111 & 112, press
and release the Select key. The value entry will
begin to flash when it is chosen. Use the Up Arrow
key to increase the value and the Down Arrow key
to decrease the value. When a new value has been
chosen press the Enter key to store the value into
memory. The value entry will stop flashing when
loaded into the memory.
Figure 110
pmp bat vmtr sig tnk
Pulse Input Scan
*PPS *PPM *Esc
pmp bat vmtr sig tnk
Span Adjustment
50 Pul/sec *Esc
pmp bat vmtr sig tnk
Span Adjustment
30 Pul/min *Esc
Figure 111
Figure 112
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 44
NJEX 7300G ver. 08-2018
Section 7: Calibrating Signal Inputs
Figure 113
Calculation for Determining the Span Frequency
Pulse
x max flow rate
CF=
CF Hr
Pulses
Hr
As determined by the flow metering device
Example:
1 pulse x
1,000,000CF =100,000 pulses/hr
10CF
Hr
Since pulses per hour is not an option for programming the N-300G divide by
60 minutes per hour to obtain pulses per minute.
100,000 pulses x
Hr
1Hr =1,666.7 pulses/min.
60 min.
Since a maximum of 100 pulses per minute may be programmed into the
N-300G, you must now divide by 60 seconds per minute to obtain pulses per
second, if this value had calculated to less than 100 pulses per minute it could
have been programmed into the N-300G.
1,666.7 pulses
x 1 min. =27.7 pulses/sec.
min.
60 sec
Select PPS and set the span to 28 pulses per second.
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 45
Section 7: Calibrating Signal Inputs
Notes
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 46
NJEX 7300G ver. 08-2018
Section 8: Working with the N-300 System Displays
Display Functionality
Characters in the display will change to indicate the
varying conditions of NJEX System operation. As
discussed in Section 1: First Things to Know, Typographic Conventions, page 1 and in Section 4: System
Control and Electronics, page 19 the display interacts with the keyboard to access the different levels
or areas in the programming function of the N-300
controller.
That extra-functionality in the display plays a further roll
in the case of Alarm Indicators and Non-Alarm Indicators.
With the activation of an alarm indicator, the alarm
function of the NJEX System turns into an UPPER
CASE character set. For example, pmp – pump,
becomes PMP indicating that an alarm is active, figure
114.
Figure 114
Figure 115
PMP bat vmtr sig tnk
PropFlow
Idle
*Strt *Dsp *Set
Pump Failure
pmp bat vmtr sig tnk
PropFlow
Idle
*Strt *Dsp *Set
To indicate the specific activity of the alarm, the N-300
will flash a description, and solid black box – , in the
top line of the display, figure 115.
The character change indicating that a monitored
condition is in alarm status is further accompanied by
a flashing LED light. Any time an alarm is simulated
or real, a bright red LED light will flash in the alarm
light indicator, located just below the Select / Enter
key. Any time a non-alarm is simulated or real, a bright
green LED light will flash in the indicator light indicator
,located just below the Down Arrow key, figure 116.
Figure 116
Further discussion of the display functions can be
found under the Setting & Testing Alarms, Section 9
beginning with page 53.
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 47
Section 8: Working with the N-300 System Displays
To View Real Time Displays
Choose *Dsp in the main menu, figure 117.
Strokes signaled are the number of pump strokes
signaled by the N-300G controller are shown in this
display, figure 118.
To reset strokes signaled, press the *Rst key and
follow instructions, figures 119.
Odorant Injected, figure 120, is the cumulative total
of odorant injected in lbs. (kg) is shown in this display.
To reset lbs. (kg) injected, figures 121, press the
*Rst key and follow instructions.
Note: Pounds – lbs. (kg) injected will increment only
when a valid pump displacement has been calculated.
Pounds – lbs. (kg) injected will not increment during fill
valve alarm condition.
Pump Displacement
This display illustrates the last value, in cc / stroke,
calculated by the N-300G with volume data supplied
by the Verometer, figure 122.
Note: an asterisk “*” following the value illustrated
in the display designates that a value has not been
calculated at present, and the previously set or
programmed pump displacement will be displayed,
refer to the Programming Sections 5 & 6, beginning on
pages 25 & 33.
Pump Alarms
There are three conditions that will result in a pump
alarm indication.
• Over Pumping, figure 123, the calculated pump
displacement exceeds the set pump displacement
by 30%.
• Under Pumping, figure 124, the calculated pump
displacement is less than the set pump displacement by 30%.
• Pump Failure, figure 125, the calculated pump displacement is less than the set pump displacement
by 75%. For example, low displacement due to an
empty meter, the pump cannot inject odorant when
required if the meter which supplies the odorant to
the pump is empty.
Figure 117
Figure 118
Figure 119
Figure 119
pmp bat vmtr sig tnk
PropFlow
Idle
*Strt *Dsp *Set
pmp bat vmtr sig tnk
Strokes Signaled
*Reset
01169284
pmp bat vmtr sig tnk
Reset Strokes?
*No *Yes
pmp bat vmtr sig tnk
Strokes Signaled
*Reset
00000000
Or
pmp bat vmtr sig tnk
Odorant Injected
*Reset
83.601lbs
pmp bat vmtr sig tnk
Odorant Injected
*Reset
1628.082kg
Figure 120
pmp bat vmtr sig tnk
Reset lbs Injected?
*No *Yes
pmp bat vmtr sig tnk
Reset kg Injected?
*No *Yes
Figure 121
pmp bat vmtr sig tnk
Odorant Injected
*Reset
0.000lbs
pmp bat vmtr sig tnk
Odorant Injected
*Reset
0.000kg
Figure 121
Figure 122
pmp bat vmtr sig tnk
1.000 cc/Stroke *
Pump Displacement
Over Pump
Figure 123
Figure 124
Figure 125
pmp bat vmtr sig tnk
1.310 cc/Stroke
Pump Displacement
Under Pump
pmp bat vmtr sig tnk
0.690 cc/Stroke
Pump Displacement
Pump Failure
pmp bat vmtr sig tnk
PropFlow
Idle
*Strt *Dsp *Set
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 48
NJEX 7300G ver.08-2018
Section 8: Working with the N-300 System Displays
pmp bat vmtr sig tnk
Meter Level
00.0%
*Fill
Meter Level – Verometer
Figure 126
This display illustrates the Verometer level in percent.
As odorant is pumped out of the Verometer, the N-300G
controller will automatically refill the meter when the
pmp bat vmtr sig tnk
Fill Verometer?
meter level reaches 0%, figure 126.
*No
To manually fill the Verometer, figure 127, press the
*Fill key and follow the instructions. The following represent There conditions that will result in a meter alarm
indication.
Meter Alarms – Verometer
These are of the displays containing 12 alarm and nonalarm indicators, figures 128, to provide information on
Verometer operation.
• Vmtr-Cable, the Verometer cable is not communicating to the controller.
• No Fill, the meter has failed to fill.
a. The meter has failed to fill to 100% within six
minutes
b. The fill was inhibited due to leakage detection
• Slow Fill, the meter has failed to fill within three minutes.
• Fill Valve, the fill valve has failed to close.
• OdorInlet-Cable, inlet fill valve pressure transmitter is
not communicating with the controller.
• OdorInlet Lo, the required inlet pressure of odorant is
lower than allowed.
• OdorInlet Hi, the required inlet pressure of odorant is
higher than allowed
• XTank-Cable, the expansion tank cable outlet fill valve
pressure transmitter is not communicating with the controller.
• XTank Low, the expansion tank pressure has fallen
below the programmed low-pressure setting.
• XTank Hi, the expansion tank pressure has risen
above the programmed high-pressure setting.
Meter Indicators, non-alarm
• Over Fill, the meter has been filled in excess of 112%.
a. The Verometer Fill Rate is too fast, in excess of
10 seconds.
b. The verometer Fill Valve has failed to close.
• Fill Rate, the meter has filled too fast, in excess of
10 seconds.
*Yes
pmp bat vmtr sig tnk
Meter Level
100.0%
*Fill
Figure 127
Figure 128
Umtr-Cable
pmp bat VMTR sig tnk
Meter Level
0.0%
*Fill
Figure 128
No Fill
pmp bat VMTR sig tnk
Meter Level
0.0%
*Fill
Figure 128
Slow Fill
pmp bat VMTR sig tnk
Meter Level
0.0%
*Fill
Figure 128
Flvalve-Fail
pmp bat VMTR sig tnk
Meter Level
106.1%
*Fill
Figure 128
OdorInlet-Cabl
pmp bat VMTR sig tnk
Meter Level
99.6%
*Fill
Figure 128
Odor Inlet-Low
pmp bat VMTR sig tnk
Meter Level
99.6%
*Fill
Figure 128
Odor Inlet-Hi
pmp bat VMTR sig tnk
Meter Level
99.6%
*Fill
Figure 128
XTank-Cable
pmp bat VMTR sig tnk
Meter Level
99.6%
*Fill
Figure 128
XTank-Low
pmp bat VMTR sig tnk
Meter Level
99.6%
*Fill
Figure 128
XTank-High
pmp bat VMTR sig tnk
Meter Level
99.6%
*Fill
Figure 128
Over-fill
pmp bat VMTR sig tnk
Meter Level
104.3%
*Fill
Figure 128
Fillrate
pmp bat VMTR sig tnk
Meter Level
104.3%
*Fill
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 49
Section 8: Working with the N-300 System Displays
To View Real-Time Displays,
Continued
Expansion Tank
This display illustrates the expansion tank pressure,
figure 129.
Odorant Inlet
pmp bat vmtr sig tnk
Expansion Tank
25.2 psig
Figure 129
pmp bat vmtr sig tnk
Odorant Inlet
35.3 psig
Figure 130
Displays the pressure of the bulk odorant storage
tank via the pressure transmitter located at the fill rate
control valve, figure 130.
Battery Voltage
Flow Input
This display, figure 132, illustrates the flow rate as a
percentage of the maximum gas flow. The following
represent the alarms that are associated with this area
of the N-300G controller.
• Over Flow, figure 134, the flow input has exceeded
125% of the maximum gas flow.
Low Battery
pmp bat vmtr sig tnk
Battery
14.3 VDC
Figure 131
Or
pmp bat vmtr sig tnk
Flow Input
63.1%
Linear
• Over Flow, figure 136, the flow input has exceeded
110% of the maximum gas flow, but is still less than
125% of maximum gas flow.
• No Flow, figure 137, is presently indicated by the
flow signal.
• Low Flo Shtoff, figure 138, the flow signal indicates
a flow rate less than programmed for odorization.
pmp bat vmtr sig tnk
Flow Input
0.0%
Pulse (PPM)
Figure 132
Figure 133
Loss of Signal
pmp bat vmtr SIG tnk
Flow Input
0.0%
Pulse (PPM)
Figure 134
OverFlow >125%
pmp bat vmtr SIG tnk
Flow Input
125.1%
Pulse (PPM)
Figure 135
Low Flow Shtoff
pmp bat vmtr sig tnk
PropFlow
0.06
*Stop *Dsp *Set
Figure 136
OverFlow >110%
pmp bat vmtr sig tnk
Flow Input
110.1%
Pulse (PPM)
Figure 137
No Flow
pmp bat vmtr sig tnk
Flow Input
0.0%
Pulse (PPM)
Figure 138
Low Flo Shtoff
pmp bat vmtr sig tnk
Flow Input
2.0%
Pulse (PPM)
Flow Input Indicators, non-alarm
• Low Flow, figure 135, the flow input has fallen below the low flow shut off set point refer to Section 5,
Programming for Proportional-to-Flow page 26.
Or
Figure 131
Flow Input Alarms
• Loss of Signal, figure 133, the flow signal is less
than .5 VDC, for the analog input only.
pmp bat vmtr sig tnk
Odorant Inlet
2.434 bar
pmp bat vmtr sig tnk
Battery
14.3 VDC
The battery voltage is shown in this display, figures
131.
• Battery Alarm, a low battery is when the voltage is
less then 11.5 VDC.
pmp bat vmtr sig tnk
Expansion Tank
1.739 bar
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 50
NJEX 7300G ver.08-2018
Section 8: Working with the N-300 System Displays
Note: the flow input display is active in the Proportional-to-Flow mode only.
Tank Level
This display, figure 139, illustrates the odorant supply
level in the bulk odorant storage tank.
pmp bat vmtr sig tnk
Tank Level
51%
Figure 139
Note: The tank level indication is active only when
there is a YZ supplied tank.
Tank Level Alarm
• Low Level, figure 140, the odorant supply tank level
has fallen below the low level set point, refer
to Programming for Proportional-to-Flow and Programming for Proportional-to-Time Sections 5 & 6,
pages 28 & 34.
• High Level, figure 141, the odorant supply tank
level rises above the high level set point, refer to
Programming for Proportional-to-Flow and Programming for Proportional-to-Time Sections 5 & 6, pages
28 & 34.
Figure 140
Odor Tank Low
pmp bat vmtr sig tnk
Tank Level
51%
Odor Tank High
pmp bat vmtr sig tnk
Tank Level
9%
Figure 141
Note: the tank level display is only active when it is
not disabled (>00% = Low & High Level).
Odorant Temperature
This display, figure 142, illustrates the odorant temperature, time and date.
Figure 142
pmp bat vmtr sig tnk
Odorant Temp
32C
15 55 07-12-Thu-2001
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 51
Section 8: Working with the N-300 System Displays
Notes
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 52
NJEX 7300G ver.08-2018
Section 9: Setting & Testing Alarms
Setting Alarm Out Status
Alarm outputs can be configured to enable or disable
which alarms deactivate the alarm output contact
located on TB1, terminals #17 and #18, refer to the
Wiring Control Document on page 116 in Appendix D:
Documents. Only an entire alarm area may be disabled for example, pump alarms.
Figure 143
Figure 144
CAUTION:
Alarm outputs are critical for monitoring system performance. Outputs should not be disabled except for
testing/troubleshooting.
Figure 145
pmp bat vmtr sig tnk
PropFlow
Idle
*Strt *Dsp *Set
pmp bat vmtr sig tnk
Set Selection
*Par
*Cal *Esc
pmp bat vmtr sig tnk
Set Parameters
*Flow *Time *Esc
Or
Choose *Set in the main menu, figure 143.
Choose *Par – parameters in the Set Selection menu,
figure 144.
Choose *Flow or *Time in the Set Parameters menu,
figures 145.
Choose *Alarm from the Proportional-to-Time or
Proportional-to-Flow menu, figure 146.
pmp bat vmtr sig tnk
Proportional to Flow
*Set *Alarm * Esc
Figure 146
Figure 147
pmp bat vmtr sig tnk
Alarm Output Status
*Set *Test *Esc
Choose *Set from the Alarm Out Status menu, figure
147.
To set the pump alarm status, figure 148, press and
release the Select key. The entered value will flash
when it is chosen. Use the Down Arrow or Up Arrow
keys to change the setting. Press the Enter key to
load the entry into memory. The display will stop flashing when the entered value is loaded into the memory.
Press the Down Arrow key to advance to the next
parameter.
To set the battery alarm status, figure 149, press
and release the Select key. The entered value will
begin to flash when chosen. Use the Up Arrow or
Down Arrow keys to change the value. When a new
value has been chosen, press the Enter key to store
the new value into memory. The entered value will
stop flashing when it has been loaded into memory.
Press the Down Arrow key to advance to the next
parameter.
pmp bat vmtr sig tnk
Proportional to Time
*Set *Alarm * Esc
Or
pmp bat vmtr sig tnk
Pump Alarm
Enabled
pmp bat vmtr sig tnk
Pump Alarm
Disabled
Figure 148
Or
pmp bat vmtr sig tnk
Battery Alarm
Enabled
pmp bat vmtr sig tnk
Battery Alarm
Disabled
Figure 149
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver. 08-2018
Page 53
Section 9: Setting & Testing Alarms
Setting Alarm Out Status
Continued
To set the Verometer alarm status, figure 150, press
and release the Select key. The entered value will
begin to flash when chosen. Use the Up Arrow or
Down Arrow keys to change the value. When a new
value has been chosen, press the Enter key to store
the new value into memory. The entered value will
stop flashing when it has been loaded into memory.
Press the Down Arrow key to advance to the next
parameter.
To set the Signal alarm status, figure 151, press and
release the Select key. The entered value will begin
to flash when chosen. Use the Up Arrow or Down Arrow keys to change the value. When a new value has
been chosen, press the Enter key to store the new
value into memory. The entered value will stop flashing when it has been loaded into memory. Press the
Down Arrow key to advance to the next parameter.
pmp bat vmtr sig tnk
Verometer Alarm
Enabled
pmp bat vmtr sig tnk
Verometer Alarm
Disabled
Figure 150
pmp bat vmtr sig tnk
Signal Alarm
Enabled
pmp bat vmtr sig tnk
Signal Alarm
Disabled
Figure 151
Note: this alarm window option will only display if you
have chosen the Proportional-to-Flow path.
Note: this option should only be active if your system
was supplied with a YZ skid mounted odorant storage
tank.
pmp bat vmtr sig tnk
Tank Alarm
Enabled
pmp bat vmtr sig tnk
Tank Alarm
Disabled
Figure 152
To set the Tank alarm status, figure 152, press and
release the Select key. The entered value will begin
to flash when chosen. Use the Up Arrow or Down
Arrow keys to change the value. When a new value
has been chosen, press the Enter key to store the
new value into memory. The entered value will stop
flashing when it has been loaded into memory. Press
the Down Arrow key to advance to the next parameter.
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 54
NJEX 7300G ver. 08-2018
Section 9: Setting & Testing Alarms
Testing Alarm Out Status
Alarm outputs that have been enabled will deactivate
the alarm output contact located on TB1, terminals
#17 and #18, refer to the Wiring Control Document on
page 116 in Appendix D: Documents. You may test
the alarm output in general by choosing the Alarm
SwitchTest option below, figure 136, or you may
choose to Simulate specific alarms as illustrated in
this section as well.
Figure 153
Choose *Set in the main menu, figure 153.
Figure 155
Figure 154
pmp bat vmtr sig tnk
PropFlow
Idle
*Strt *Dsp *Set
pmp bat vmtr sig tnk
Set Selection
*Par *Cal *Esc
pmp bat vmtr sig tnk
Set Parameters
*Flow *Time *Esc
Choose *Par – parameters in the Set Selection menu,
figure 154.
Choose *Flow or *Time in the Set Parameters menu,
figure 155.
Choose *Alarm from the Proportional-to-Time or Flow
menus, figure 156.
Or
pmp bat vmtr sig tnk
Proportional to Flow
*Set *Alarm * Esc
Figure 156
Choose *Test from the Alarm Out Status menu, figure
157.
Choose *SW in the Switch / Simulation menu, figures
158.
To activate the Alarm Test Switch, figures 159,
press and release the Select key. The entered value
will flash when it is chosen. Use the Down Arrow or
Up Arrow keys to change the setting. ON / Relay
Open indicates the alarm relay is in the test mode.
OFF / Relay Closed indicates the relay is in the normal mode. Press the Enter key to load the entry into
memory. When the unit is in the Alarm Test Mode,
a bright red light will flash in the alarm light indicator
located just below the SELECT /ENTER switch. The
display will stop flashing when the entered value is
loaded into the memory. Press the Up Arrow key to
advance to return to the Switch / Simulation menu.
Choose *Sim in the Switch / Simulation menu. Any
time an alarm is simulated or real, a bright red light
will flash in the alarm light indicator located just below
the SELECT / ENTER switch. Any time a Non-Alarm
is simulated or real, a bright green light will flash in the
indicator light indicator located just below the Down
Arrow key.
pmp bat vmtr sig tnk
Proportional to Time
*Set *Alarm * Esc
Figure 157
Figure 158
pmp bat vmtr sig tnk
Alarm Output Status
*Set *Test *Esc
pmp bat vmtr sig tnk
Switch / Simulation
*Sw
*Sim *Esc
pmp bat vmtr sig tnk
Alarm Switch Test
ON / Relay Open
Figure 159
pmp bat vmtr sig tnk
Alarm Switch Test
Alarm Relay Closed
Figure 159
Simulation does not activate the alarm output, use for
visualization only. No Modbus.
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver. 08-2018
Page 55
Section 9: Setting & Testing Alarms
Testing Alarm Out Status Continued
To Simulate the pump alarm status, figures 160,
press and release the Select key. The pmp Alarm indicator in the upper left area of the N-300G display will
flash when it is selected. Use the Down Arrow or Up
Arrow keys to simulate which type of pump alarm to
activate. This will be shown by the solid block appearing next to Over Pump, Under Pump, or Pump Failure text at the top of the N-300G display, and the PMP
indicator will be displayed in UPPER CASE letters, and
will flash on and off. Press the Enter key to return to
the simulation selection screen. The display will stop
flashing. Press the Down Arrow key to advance to the
next simulation option.
To Simulate the battery alarm status, figures 161,
press and release the Select key. The bat alarm
indicator in the upper left center area of the N-300G
display will flash when it is selected . Use the Down
Arrow or Up Arrow keys to simulate a Low Battery
alarm. This will be shown by the solid block appearing next to Low Battery text at the top of the N-300G
display, and the BAT indicator will now be displayed
in UPPER CASE letters, and will flash on and off.
Press the Enter key to return to the simulation selection screen. The display will stop flashing. Press the
Down Arrow key to advance to the next simulation
option.
To Simulate the verometer alarm status, figures 162,
press and release the Select key. The vmtr alarm indicator in the upper center area of the N-300G display
will flash when it is selected. Use the Down Arrow
or Up Arrow keys to simulate which type of Verometer alarm to simulate. This will be shown by the solid
block appearing next to Odor Inlet-Cabl, Odor Inlet
Lo, Odor Inlet Hi, XTank-Cable, XTank Low, XTank
High, Flvalve-Fail, Leakage, Slow Fill, No Fill, or
Vmtr-Cable, text at the top of the N-300G display, and
the VMTR indicator will now be displayed in UPPER
CASE letters, and will flash on and off. Additionally,
at this position two Verometer Indicators, Overfill and
Fillrate, that are non-alarms may be simulated in the
same manner. They will be indicated at the same location on the N-300G display, but will not have the solid
block appearing next to them, and the vmtr indicator
will again be in the lower case, but will continue to flash
off and on.
pmp bat vmtr sig tnk
Pump Alarm
Simulate
Over Pump
PMP bat vmtr sig tnk
Pump Alarm
Simulate
Figure 160
Figure 160
Under Pump
PMP bat vmtr sig tnk
Pump Alarm
Simulate
Figure 160
Pump Failure
PMP bat vmtr sig tnk
Pump Alarm
Simulate
Figure 160
pmp bat vmtr sig tnk
Battery Alarm
Simulate
Low Battery
pmp BAT vmtr sig tnk
Battery Alarm
Simulate
Figure 161
Figure 161
pmp bat vmtr sig tnk
Verometer Alarm
Simulate
Flvalv-Fail
pmp bat VMTR sig tnk
Alarm Output Status
*Set *Test *Esc
Figure 162
Figure 162
Odor Inlet-Cable
pmp bat VMTR sig tnk
Verometer Alarm
Simulate
Leakage
pmp bat VMTR sig tnk
Alarm Output Status
*Set *Test *Esc
Figure 162
Figure 162
Odor Inlet Low
pmp bat VMTR sig tnk
Verometer Alarm
Simulate
Slow Fill
pmp bat VMTR sig tnk
Alarm Output Status
*Set *Test *Esc
Figure 162
Figure 162
Odor Inlet Hi
pmp bat VMTR sig tnk
Verometer Alarm
Simulate
No Fill
pmp bat VMTR sig tnk
Alarm Output Status
*Set *Test *Esc
Figure 162
Figure 162
XTank-Cable
pmp bat VMTR sig tnk
Verometer Alarm
Simulate
Vmtr-Cable
pmp bat VMTR sig tnk
Alarm Output Status
*Set *Test *Esc
Figure 162
Figure 162
XTank-Low
pmp bat VMTR sig tnk
Verometer Alarm
Simulate
Figure 162
XTank High
pmp bat VMTR sig tnk
Alarm Output Status
*Set *Test *Esc
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 56
NJEX 7300G ver. 08-2018
Section 9: Setting & Testing Alarms
Press the Enter key to return to the simulation selection screen. The display will stop flashing. Press the
Down Arrow key to advance to the next simulation
option.
To Simulate the Signal alarm status, figures 163,
press and release the Select key. The sig alarm indicator in the upper left area of the N-300G display will
flash when it is chosen. Use the Down Arrow or Up
Arrow keys to simulate which type of signal alarm to
simulate. This will be shown by the solid block appearing next to Over Flow > 125%, or Loss of Signal text
at the top of the N-300G display, and the SIG indicator will now be displayed in UPPER CASE letters, and
will flash on and off. Additionally at this position three
signal Indicators, OverFlow >110%, No Flow, and
Low Flo Shtoff, that are non-alarms may be simulated in the same manner. They will be indicated at the
same location on the N-300G display, but will not have
the solid block appearing next to them, and the sig
indicator will again be in the lower case, but will continue to flash on and off. Press the Enter key to return
to the simulation selection screen and the display will
stop flashing. Press the Down Arrow key to advance
to the next simulation option.
To simulate the Tank alarm status, figures 164,
press and release the Select key. The tnk alarm
indicator in the upper left area of the N-300G display
will flash when it is chosen. Use the Down Arrow or
Up Arrow keys to simulate which type of tank alarm to
simulate. This will be shown by the solid block appearing next to Odor Tank Low, or Odor Tank High text
at the top of the N-300G display, and the TNK indicator will now be displayed in UPPER CASE letters, and
will flash on and off. Press the Enter key to return to
the simulation selection screen. The display will stop
flashing.
pmp bat vmtr sig tnk
Signal Alarm
Simulate
OverFlow >125%
PMP bat vmtr SIG tnk
Pump Alarm
Simulate
Figure 163
Figure 163
OverFlow >110%
PMP bat vmtr sig tnk
Pump Alarm
Simulate
Figure 163
Loss of Signal
PMP bat vmtr sig tnk
Alarm
Simulate
Figure 163
No Flow
PMP bat vmtr sig tnk
Pump Alarm
Simulate
Figure 163
Low Flo Shtoff
PMP bat vmtr sig tnk
Pump Alarm
Simulate
pmp bat vmtr sig tnk
Tank Alarm
Simulate
Odor Tank Low
pmp bat vmtr sig TNK
Tank Alarm
Simulate
Figure 164
Figure 164
Odor Tank High
pmp bat vmtr sig TNK
Tank Alarm
Simulate
Figure 164
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver. 08-2018
Page 57
Section 9: Setting & Testing Alarms
Setting The Clock
Date Stamps Module
The internal clock in the N-300G should be maintained
to reflect the current local time and date. When a system is first placed into service the clock should be set
for local time and date. This clock is a 24 hour, military
time, clock and therefore the hour of the day will be set
between 00:00 and 23:59. It is important that this time
and date be correct as data logged will be reflected
from this clock setting. If daylight savings time, or
other similar hour-shift adjustment, is observed, these
changes should be made manually to the clock as they
occur. Any change to the clock will be logged in the
Sentry4 data file.
Figure 165
Figure 166
Choose *Set in the main menu, figure 165.
Choose *Cal in the set selection menu, figure 166.
Figure 167
Choose *Clk in the calibration selection menu, figure
167.
To set the Clock, figure 168, press and release the
Select key. First, the numerical value for the Month
will begin flashing when chosen. Use the Up Arrow
key to increase the value and the Down Arrow key
to decrease the value. When a new value has been
chosen, press the Enter key to store the new Month
into memory. The entered value will stop flashing when it has been loaded into memory, then the
numerical Day of the month value will begin to flash.
Use the Up Arrow key to increase the value and the
Down Arrow key to decrease the value. When a new
Day value has been chosen, press the Enter key to
store the new Day into memory and the Day of The
Week will begin to flash. Use the Up Arrow key to
increase the value and the Down Arrow key to decrease the value. When a new Day of the Week has
been chosen, press the Enter key to store the new
Day of the Week into memory. Now the Year value
will begin to flash. Use the Up Arrow key to increase
the value and the Down Arrow key to decrease the
value. When a new Year has been chosen, press the
Enter key to store the new Year into memory. The
last two settings will be for the Hour of the day and
the minutes after the Hour. The Hour value will begin
to flash. Use the Up Arrow key to increase the value
and the Down Arrow key to decrease the value.
When a new Hour has been chosen, press the Enter
key to store the new Hour into memory. Last the
Minutes after the Hour will begin to flash. Use the Up
Figure 168
pmp bat vmtr sig tnk
PropFlow
Idle
*Strt *Dsp *Set
pmp bat vmtr sig tnk
Set Selection
*Par *Cal *Esc
pmp bat vmtr sig tnk
Calibration Set
*Clk *Inputs *Esc
pmp bat vmtr sig tnk
Set Date and Time
12:07 07-12-Thu-2001
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 58
NJEX 7300G ver. 08-2018
Section 9: Setting & Testing Alarms
Arrow key to increase the value and the Down Arrow
key to decrease the value. When a new Minute value
has been chosen, press the Enter key to store the
new setting into memory. This concludes the Clock
Setting Section. Press the Up Arrow key three times
to return to the main menu.
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver. 08-2018
Page 59
Section 9: Setting & Testing Alarms
Notes
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 60
NJEX 7300G ver. 08-2018
Section 10: Mechanical System
Overview
Actuation Gas Regulator
The 7300G mechanical system, figures 169, 170 and
171 are composed of the bulk odorant filter, fill valve,
Verometer, 7000F pump, odorant discharge manifold,
NJEX gas supply filter, solenoid manifold, pneumatic
relay manifold, and the expansion tank. Individual
components of the system are shown below and described in the following pages.
Figure 169
Bulk Odorant Filter
Expansion Tank
Figure 170
Odorant Discharge
Manifold Pipeline Port
75 psi (5.17 Bar) Regulated Actuation Gas
Odorant Inlet
Connection
Figure 171
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver. 08-2018
Page 61
Section 10: Mechanical System
Odorant Inlet Manifold &
Bulk Odorant Filter Assembly
The odorant inlet manifold & bulk odorant filter assembly, figure 172, is located adjacent to each pump /
verometer assembly and performs the following functions:
• Provides the system’s odorant supply connection
by means of a 1/4” FNPT connection located on the
back of the enclosure.
• Provides a pressure gage to show odorant supply
pressure from storage tank.
• Provides an odorant supply isolation valve.
• Houses the first of two odorant filter systems within
the 7300G System.
• Acts as the odorant return manifold during system
purge operations, refer to Conducting a Forward
Purge in Section 12, page 74.
In the event that the internal filter elements become
dirty, a bulk odorant filter repair kit is available.
Figure 172
Fill Valve
The purpose of the fill valve is to control odorant flow
into the Verometer, figure 173. The fill valve is opened
when a pneumatic signal from the solenoid valve
manifold depresses the fill valve diaphragm. The
valve is closed when the pneumatic signal is removed
and the fill valve spring returns the check valve wafer
to its seat. The transfer of odorant from the bulk storage tank to the Verometer, when this valve is activated, is dependant on an adequate pressure differential
between the bulk storage tank and the Verometer,
with the bulk storage tank retaining the higher of the
two pressures. These pressures are monitored by two
pressure transmitters mounted in the system. One
transmitter monitors the incoming pressure from the
bulk storage tank, while the other, mounted on the expansion tank, monitors the pressure in the verometer.
A differential pressure range of 5 - 10 psi (.345 - .69
Bar) must be present, with the differential not exceeding either end of the range.
Figure 173
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 62
NJEX 7300G ver. 08-2018
Section 10: Mechanical System
The threaded inlet connection to the fill valve allows
access to the check valve wafer, return spring, and
o-ring seal without disturbing the diaphragm and its
seals.
Verometer
The purpose of the Verometer, figure 174, is to act
as an odorant meter, verifying the amount of injected
odorant. The Verometer contains a level monitoring
device allowing the N-300G controller to compare the
actual amount of odorant injected to the displacement
setting of the pump. The N-300G also controls filling
the Verometer and activating the Verometer alarm
functions based on input from the level monitoring
device.
Odorant enters the Verometer from the fill valve.
Odorant exits the Verometer by passing through a
second filter element on its way to the pump. The filter
element is held in place by the filter plug located at the
bottom of the Verometer.
The upper portion of the Verometer, above the odorant fluid level, is connected to the expansion tank by
stainless steel tubing and the odorant discharge manifold. The purposes for this configuration are:
1. The Verometer / expansion tank connection
provides a closed loop system which prevents
odorant escape into the atmosphere.
2. As the Verometer is filled, pressure builds within
the closed Verometer / expansion tank system.
The additional volume provided by the expansion
tank prevents the accumulating pressure in the
Verometer from equaling the blanket gas pressure
in the odorant storage tank. This ensures an uninterrupted flow of odorant from the storage tank
to the Verometer.
Figure 174
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver. 08-2018
Page 63
Section 10: Mechanical System
Model 7000F Pump
The NJEX 7000F pump, figure 175, is a pneumatically
actuated, positive displacement, reciprocating plunger
pump. The 7000F is actuated with compressed air or
pipeline gas at a pressure of 30 - 60 psi (2.07 - 4.14
Bar), refer to Section 2, the System Flow Schematic,
illustration 1, on page 2. The pump has an adjustable
displacement of 1.0cc, 0.8cc, 0.7cc, 0.6cc, 0.5cc,
0.4cc, 0.3cc or 0.2cc. It achieves proportional-toflow injection through adjustment of the stroke rate.
The 7000F is rated for a maximum stroke rate of 46
strokes per minute.
Each time the pump strokes, the plunger displaces
hydraulic fluid against the pump diaphragm, which in
turn displaces odorant through the discharge check
valve. The pump diaphragm acts as an isolation
device between the hydraulic fluid and the odorant,
minimizing the risk of odorant escape into the atmosphere. Each time the plunger returns, it completely
removes itself from the plunger seal. This allows any
air trapped in the hydraulic system to be vented.
Figure 175
The 7000F incorporates a cartridge design in the four
areas that are most likely to require maintenance.
They are: the diaphragm assembly, the inlet check
valve, the discharge check valve, and the plunger
bushing / seal assembly. The cartridge design provides easier maintenance resulting in less down-time.
Odorant Discharge Manifold
This manifold is located on the back wall of the
mechanical enclosure, just to the left of the verometer and above the pump, figure 176. This manifold,
located inside the enclosure, has three connections
on the bottom of the manifold. The inlet connection
in the center of the manifold is the pump discharge,
the connection to the right is to the Verometer and the
third connection to the left is to the purge bypass loop.
These fittings are connected at factory to the appropriate component.
Three outlet ports for the odorant discharge manifold
are located on the back of the manifold and extend
through the enclosure wall. When facing the back of
Figure 176
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 64
NJEX 7300G ver. 08-2018
Section 10: Mechanical System
the enclosure from right to left, these ports are for the
expansion tank drain, the pipeline connection, and the
expansion tank pressure connection.
Two valves located this manifold control the flow of
the odorant blanket gas through the manifold. The
valve located on the left, with the blue knob is the
purge valve, refer to Section 12: System Maintenance,
page 74 Figure 197, valve V3. The valve, with the red
knob, is the bypass valve, refer to Section 12: System
Maintenance, page 74 Figure 197, valve V2. During
normal operation, both valves are closed. The bypass
valve is opened to empty the 7300G of odorant, refer
to Section 12: System Maintenance, page 74 Figure
197 while the purge valve is opened as part of preparing the system for operation refer to Section 12:
System Maintenance, page 80, Figure 200.
An integral wafer check valve is built into the odorant
discharge manifold. The wafer is located on top of the
plug that is inserted in the bottom of the manifold. This
check valve is located in the fluid path between the
pump discharge connection and the pipeline connection port.
The gage located on top of this manifold displays the
Expansion Tank pressure.
NJEX Gas Filter
Figure 177
A 25 micron coalescent filter is provided with each
7300G. This filter, figure 177, is installed on the back
outside of the enclosure and should be connected to
the regulated (75 psi / 5.17 Bar) actuation gas supply
provided by the system operator. By conditioning the
incoming actuation gas, a clean pneumatic supply will
be provided to the solenoid valves. This will ensure
a longer operational life for the pneumatic control
system. If the actuation gas supply has a high water
content and / or a low hydrocarbon dew point, additional filtration and heating of the actuation gas supply
may be necessary. Bottled nitrogen can also be used
as an alternate gas supply source if gas conditioning
is a problem.
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver. 08-2018
Page 65
Section 10: Mechanical System
Solenoid Valve & Pneumatic
Relay Manifold
Two low power solenoid valves are mounted on this
manifold, figure 178. The solenoid valve, SV2 located
on the left, actuates the fill valve, while the other solenoid valve, SV1 located on the right, pilots the pump
pneumatic relay valve.
One pneumatic relay valve is also mounted on this
manifold. It is located just below the solenoid valves and
serves to actuate the pump when it receives a pneumatic signal from the pilot relay discusses in the previous
paragraph.
Supply and exhaust ports are located on the outside
of the manifold to permit operator connections on the
back of the system enclosure.
Additionally, there are three control valves located
on this manifold, V4 lower right with a gold knob, V5
upper center with a green knob, and V16 lower left
with a black knob. Valve V4 is normally closed, but
is opened to charge the expansion tank with gas as
required during system start up or purge process.
Additionally, valve V5 is normally closed, but is
opened to vent the gas from the expansion tank for
maintenance. Finally, V16 is normally open, and is the
supply gas isolation valve.
Figure 178
Expansion Tank
The expansion tank, figure 179, is mounted on the
back of the enclosure and acts as a pressure source
and buffer for the Verometer. As the Verometer is
filled or emptied, blanket gas flows into or out of the
expansion tank as required. Because of the relatively
large difference in the volumes of the Verometer and
the expansion tank, the fluctuation in operating pressure within this system is minimal.
Mounted on the expansion tank are: a relief valve,
preset to 85 psi (5.86 Bar); a pressure gauge, a vent
valve; and an expansion tank isolation valve. The
connection on the bottom of the tank, valve V14, is
used to connect the expansion tank to the bypass
loop.
Valve V14 is normally closed, but can be opened as
an optional step in the forward purge process to purge
any liquid from the expansion tank that may have
accumulated, and place it back into the bulk storage
tank.
Expansion Tank
Figure 179
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 66
NJEX 7300G ver. 08-2018
Section 11: System Operation
Setting System Pressures and Low Pressure Relief Adjustment
Valves
The overflow protector, figure 181, incorporates a low
Before attempting to start the system, check for
pressure relief in the cap assembly for the purpose of
proper valve positions as indicated on the normal
maintaining the maximum expansion tank pressure at
operation schematic on the enclosure door, and set all 25 psi (1.72 Bar).
pressures accordingly, figure 180.
To test and adjust follow these steps:
1. Adjust supply gas regulator to provide 75 psi (5.17
Bar) to the NJEX gas filter.
1. With valve V6 open, slowly open valve V4 until
gas begins discharging at exhaust port of the
2. Temporarily open valve V4 to fill the expansion
overflow protector.
tank to a pressure of 25 psi (1.72 Bar) then close
V4.
2. Close valve V4 and see where pressure stabilizes
which should be 25 psi (1.72 Bar).
3. Verify low pressure relief operation and adjust as
necessary to maintain a specific pressure of 25psi 3. If adjustment is needed:
(1.72 Bar).
a) First, loosen adjustment lock nut, located at
4. Adjust the pump actuation regulator to the rethe top of the overflow protector. To increase
quired pressure to inject into pipeline pressure
pressure in the tank, turn the adjustment
as indicated on the normal operation schematic
screw in, or to the right. To lower pressure
located on the enclosure door.
tank, turn the adjustment screw out, or to the
left.
5. Adjust the blanket gas regulator for the bulk storb) Tighten the lock nut.
age tank.
c) Repeat until the desired pressure of 25 psi
(1.72 Bar) is obtained as described in step 2
6. Check entire system for gas leaks and verify that
above.
Adjustment Screw
the set pressures remain constant.
Adjustment Lock Nut
Overflow
Protector
Figure 180
Valve V4
Valve V6
Figure 181
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 67
Section 11: System Operation
Starting The System
pmp bat vmtr sig tnk
Display Contrast Adj
42%
22
Turn the main power switch, located inside the N300G enclosure, figure 182. To access the switch, pull
out and upward on the lever located on the right side
of the N-300G enclosure. On the circuit board inside
the N-300G enclosure, the On / Off switch is located
on the lower right side. Flip the switch up to turn the
main power on.
Once the NJEX System is powered-up, the following
menus will appear in the LCD screen on the N-300G
controller, follow instructions provided.
• Observe the LCD screen to ensure the Serial Number and Model Type shown match the Serial Number and Model Type on the inside of the enclosure
door, figures 183.
• Verify Verometer Calibration Number matches the
Verometer tag number located at the top of the
Verometer assembly, figure 184.
• For future reference, record the Version x.xx number, figure 185, on the For the Record form, located
in the Appendix C: Response Forms, on page 113.
S1
Figure 182
Figure 183
Figure 183
IMPORTANT:
If the serial number, model type or the verometer tag
number does not match the corresponding numbers
featured on the N-300G controller consult the factory
before proceeding further.
Figure 184
Figure 185
pmp bat vmtr sig tnk
Serial Number
00000
pmp bat vmtr sig tnk
Model Type
7300G
pmp bat vmtr sig tnk
Verometer Calibrate
000.00 calibrate cc
pmp bat vmtr sig tnk
N-300G Ver 0.00
-NJEX-
Press the Down Arrow key four times to scroll the
display menu to the Meter Level display, figure 186.
pmp bat vmtr sig tnk
PropFlow
Stop
*Start *Dsp *Set
Press the Select / Enter key to choose the *Fill command, figure 186. The meter level display will show
the Verometer level as the meter reservoir fills to
100%, figure 187.
Note: initial filling may take 2-3 minutes. Adjust the
fill rate at the fill rate control valve V9. After initial fill,
a fill cycle should take 45 seconds to 1 minute.
Figure 186
Figure 187
pmp bat vmtr sig tnk
Meter Level 000%
*Fill
pmp bat vmtr sig tnk
Fill Verometer?
*No *Yes
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 68
NJEX 7300G ver.08-2018
Section 11: System Operation
Open valve V3 and use the Test key to stroke the
pump a minimum of 20 times. Additional strokes may
be necessary if the pump displacement is restricted
with a pump stroke spacer.
A decrease in the Verometer Level should be observed. Close valve V3 and press the Up Arrow key
four times to return to the main menu.
Figure 188
Figure 188
pmp bat vmtr sig tnk
PropFlow
Stop
*Start *Dsp *Set
pmp bat vmtr sig tnk
Meter Level 000%
Filling
Choose the *Start entry from the main menu, figures
188. The meter level display will indicate the Verometer level as the verometer refills to 100%.
Next, choose the mode of operation in the Proportionalto-Flow or Time display, for either the *Flow or *Time
entry, figure 189.
Note: the *Time option will not appear if disabled at
the time interval setting, refer to Section 6: Programming for Proportional-to-Time Operation, page 33,
Time Interval between strokes of the pump....
Figure 189
Figure 190
pmp bat vmtr sig tnk
Proportional to?
*Flow
*Time
*Esc
pmp bat vmtr sig tnk
Start Pump?
*Yes
*No
*Esc
To start the pump press the *Yes entry, figure 190.
If the calculated time / stroke is less than the
minimum, the Time / Stroke Calculated Exceeds
Minimum display will appear, and the system will
not start, figure 191. Refer to Section 5, page 27,
Proportion-to-Flow Mode, Setting Operator Input Parameters, to set the correct parameters for the NJEX
7300G System.
The Prop Flow / Time x:xx:xx display that follows,
figure 192, provides a count down to the next pump
stroke.
pmp bat vmtr sig tnk
Time/Stroke Calculated
Exceeds minimum
Figure 191
Figure 193
pmp bat vmtr sig tnk
Prop Flow/Time 0:00:00
*Stop
*Dsp
*Set
Figure 192
pmp bat vmtr sig tnk
Stop Pump?
*Yes
*No
*Esc
To Stop The System
To stop the pump, in the Prop Flow/Time x:xx:xx
display, figure 192, press the *Stop entry. The following Stop Pump display, figure 193, then provides the
option to press the *No or *Yes entry. Press the *Yes
entry to stop the pump.
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 69
Section 11: System Operation
Notes
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 70
NJEX 7300G ver.08-2018
Section 12: System Maintenance
Preventative Maintenance
Schedule
A preventative maintenance program serves to anticipate maintenance issues prior to waiting until the
system requires service. Like changing the oil & filters
in an automobile, by choosing to service the various
parts and operation in the NJEX System at regular
intervals, the technician can perform the maintenance
service when desired, rather than when required, such
as in the middle of night.
The key is to perform maintenance before it is required. The preventative maintenance schedule
implemented should consider the application of the
odorizer. Many of these considerations include: the
weather environment; the condition of, the actuation
gas, the odorant and the odorant bulk storage tank,
and the pump stroke frequency. All of these issues
must be considered when establishing a preventative
maintenance schedule.
Recommended Spare Parts List
Part #
Description
Recommended
Quantity
A4-0010 3-way solenoid valve
2
A3-0290 Pneumatic relay valve
1
C4-0133 NJEX gas filter replacement
filter element
1
D3-0103 Bulk odorant filter element
replacement kit
1
D3-0131 Model 7000F pump seal
replacement kit
1
D3-0126 Verometer filter element kit
1
D2-0001 NJEX pump oil, 16 oz. pint
1
Recommended Maintenance Schedule
Weekly Inspection
1.
2.
3.
4.
Verify gas pressures
Check for gas and odorant leaks
Examine the oil level in the pump
View the N-300G Controller for alarm indications
Semi-Annual Inspection
1. Inspect overflow protector and service as needed
2. Inspect tube fittings and valve packings for leaks.
Annual Inspection
1.
2.
3.
4.
5.
6.
7.
Change filters
Rebuild pump
Replace solenoids
Test the relief valve and service, as needed
Test regulators and service, as needed
Condition the odorant, as needed.
Test the NJEX System performance
Bi-Annual Inspection
1. Perform the annual inspection listed above
2. Replace the battery
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 71
Section 12: System Maintenance
Overflow Protector Assembly
Inspection
The overflow protector assembly should be inspected
as follows on each NJEX System in operation, figure
194:
1. Isolate the protector by closing valve V6 located
just below the overflow protector on the expansion
tank.
2. Slowly remove the protector upper housing, item
A, by unscrewing it from the protector lower valve
body, item B.
3. Inspect the dart and o-ring seal, item C, located in
the upper body. It should not be sticky or unusually shaped. If any distortion to this o-ring is found
it should be replaced immediately. A normal fitting
o-ring will exhibit a slight interference between
the dart and the o-ring when in contact with each
other. This contact is what causes the seal when
necessary.
4. Inspect the cap to body o-ring, item D, and lubricate or replace as necessary.
5. Inspect the reset push button. When pushed
in, the button should depress, then spring back
freely. If any sticking occurs, the o-ring, item E,
should be lubricated.
6. To reinstall the protector upper housing, first assure that the dart is fully inserted into the housing
contacting the o-ring seal. Second, install the
upper housing onto the lower body, assuring that
the cap comes to a full seated position against the
protector lower body.
Valve V6
Figure 194
7. Depress the Reset button to reset the dart.
8. Slowly open valve V6 below the protector.
9. The Reset button on the side of the overflow
protector is utilized to test the function of the low
pressure relief and to reset the overflow dart.
Pressing this button will over-ride the low pressure
relief and the overflow protection dart.
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 72
NJEX 7300G ver.08-2018
Section 12: System Maintenance
Note: This should be inspected by the maintenance
technician on a regular basis. Caution should always
be used as odorant may escape if the expansion tank
has been allowed to filled with odorant. Odorant fill of
the expansion tank is not a normal or recommended
operating condition.
Low Pressure Relief Adjustment
The overflow protector incorporates a low pressure
relief in the cap assembly for the purpose of maintaining the maximum expansion tank pressure at 25 psi
(1.72 Bar).
Figure 195
Valve V4
To test and adjust follow these steps:
Adjustment Screw
1. With valve V6 open, figure 196, slowly open valve
V4, figure 195, until gas begins discharging at
exhaust port.
Adjustment Lock Nut
2. Close valve V4 and see where pressure stabilizes
which should be 25 psi (1.72 Bar).
3. If adjustment is needed:
a) First, loosen adjustment lock nut, located
on top of the overflow protector. To increase
pressure in the tank, turn the adjustment
screw in, or to the right. To lower pressure
tank, turn the adjustment screw out, or to the
left.
Overflow
Protector
b) Tighten lock nut.
c) Repeat until the desired pressure of 25 psi
(1.72 Bar) is obtained as described in in step
2 above.
Valve V6
Figure 196
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 73
Section 12: System Maintenance
Conducting a forward, reverse,
and expansion tank purge
Figure 197
1. Stop system from main screen on controller
2. Close V6
3.
Use the down arrow on the controller to the Meter
level window
4. Open V4 and increase expansion tank pressure to
55-60 psi (3.4-4 Bar). Close V4
5. Open V2 until meter level reads empty and bubbling is heard in the bulk storage tank. Close V2
6. From the meter level screen choose fill and and
then fill Verometer YES until bubbling can be
heard in the bulk storage tank (maintain pressure
(55-60 psi) in expansion tank with V4). From the
meter level screen choose Cancel and fill Verometer NO
7. Open V14 on the expansion tank (if there is no
liquid in tank you will hear it bubble in bulk tank).
If it sounds like flowing liquid maintain pressure
and wait for it to clear (can take upto 20 min) then
close V14 and V17 (Odorant Supply Valve)
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 74
NJEX 7300G ver.08-2018
Section 12: System Maintenance
Figure 197
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 75
Section 12: System Maintenance
Venting Pressure Gas
Figure 198
Refer to the Venting Pressure Gas Operational Schematic figure 198, on page 77.
CAUTION:
Vented Gas will have STRONG odorant smell.
1. Connect a Flare, Odorant Filter / Scrubber to
Expansion Tank Vent on the back of the cabinet
(outlet of V5)
2. Open V2 and V3
3. Slowly open V5 to release pressure
4. Perform repairs or maintenance
5. See Page 78 for fill procedure
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 76
NJEX 7300G ver.08-2018
Section 12: System Maintenance
Figure 198
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 77
Section 12: System Maintenance
Filling the Verometer
Figure 199
Refer to the Filling the Verometer Operational Schematic figure 199, on page 79.
1. Close V2, V3, and V5
2. Open V4 until the expansion tank gauge reads 25
psi (1.72 Bar). Close V4.
3. Open odorant supply valve V17 and V6 on expansion tank
4. Scroll down to the meter level screen on the
controller and select Fill and Fill Verometer YES
(meter level should stop at just above 0) on 6300
and 7300. Close V9 completely then open 1.5
turns. On 8300 just move on to step 5
5. Select Fill and Fill Verometer YES on controller
(adjust V9 to fill in 3-4% increments) level should
stop at about 100%
6. Proceed to the Prime Start procedure on page 80
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 78
NJEX 7300G ver.08-2018
Section 12: System Maintenance
Figure 199
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 79
Section 12: System Maintenance
Priming & Starting the NJEX
System
Refer to the Priming and Starting the NJEX System
Operational Schematic figure 200, on page 81.
1. Scroll down to the meter level screen
2. Open V3
3. Manually stroke the pump with test switch until
Verometer level starts to drop (3-4%)
4. Close V3
5. On the controller go up arrow to the Main Screen
(Start, Display, Set). Select Start then Start Pump
Yes
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 80
NJEX 7300G ver.08-2018
Section 12: System Maintenance
Figure 200
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 81
Section 12: System Maintenance
Notes
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 82
NJEX 7300G ver.08-2018
Section 13: 7300G System Troubleshooting
How to Use This Section
Step-by-Step Resolution
The recommendations contained in this section should
be used as a preliminary information resource to
remedy operational issues with the NJEX System. It is
important to read all of the definitions and notes prior
to initiating work.
Using a step-by-step method to resolve issues on the
NJEX System will reduce maintenance time and assit
in returning the odorization system to service quicker.
Each sub-section contains a description of the alarm
and non-alarm indicators followed by a step-by-step
trouble shooting proceedure.
The following repesent the recommended chronology
to resolve issues:
1. Complete the Troubleshooting Form located in
Appendix C: Forms on page 114. Some of the
information entered on the For the Record Form
on page 113 in Appendix C can be of use.
For sub-sections containing information on alarms and
non-alarm indicators, keep in mind that alarms will
2. Re-establish the correct pressures.
trigger the alarm relay output, and the red LED light
a. Expansion Tank, 25psi (1.72 Bar)
on the display panel will flash. Non-alarm indicators
b. Bulk Storage Tank, 30-35psi (2.07-2.41 Bar)
will display on the LCD, cause the green LED to flach
c. Actuation Supply, 75psi (5.17 Bar)
on and off and generate an entry in the Sentry reports
d. Pump Actuation, refer to figure 4, System Flow
but, will not trigger the alarm relay.
Schematic in Section 2: System Installation
For Additional Help
3. Resolve alarm issues to the following order:
a. Tank Level, page 83
Any issue that can not be resolved through the use of
b. Battery, page 84
this reference, please contact YZ Technical Service at:
c. Signal, page 85
d. Verometer, page 86
T: 1.800.653.9435 (1.800.NJEX-HELP)
e. Pump, page 91
T: 1.281.362.6500, International Calls
F: 1.281.362.6513
Assistance is available 24 hours a day, 7 days a week,
365 days a year, via the 800 telephone number listed
above.
SAFETY NOTES
• Always use extreme care when performing maintenance on an odorization system. Check to ensure
the removal of liquid odorant and pressure from the
portion of the system on which work will be performed prior to removing components or fittings.
Tank Level Alarm
These alarms should only be active with skid mounted
odorizer and tank assemblies furnished pre-assembled
by YZ Systems, Inc. The set points for these alarms are
adjustable in the parameter section of the N-300 controller.
• The Odor Tank Low Level Alarm should be set between 5% to 25%. This alarm indicates a tank level
at or lower that the alarm set point.
• The Odor Tank High Level Alarm should be set
• Inspect all tube fittings and valve packings semibetween 80% to 90%. This alarm indicates a tank
annually to ensure that liquid odorant remains within
level at or above the alarm set point.
the system.
If your system was not purchased as a skid mounted
assembly with a tank from YZ Systems, this alarm
should be set to disabled in the alarm parameters section of the controller.
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 83
Section 13: 7300G System Troubleshooting
Tank Level Alarm, Continued
IMPORTANT NOTE:
The tank level indication has a variance of +2% for accuracy. If the alarm is on and the mechanical level
indicator is close to the alarm set point the alarm is
probably valid and the accuracy variance is all that is
being noted.
Tank Level Alarm Troubleshooting
Steps
1. Verify the tank level indication on the manual
tank gage. If the level indication does not approximately match the electronic level indication
perform the following checks.
a. Inspect to verify that the wiring to the controller termination strip TB2 is still intact. Look
for loose or broken wires at TB2, pin number 21 (Red Wire), 22 (Black Wire), and 24
(Shield). Repair any loose or broken wires.
b. Inspect the level sensor at the tank for possible
damage or moisture in the sensor head. Repair
or replace as required if moisture is inside the
sensor.
c. Inspect the cable between the sensor an control
head for damage. Repair or replace as necessary.
d. Observe the other values on the N-300 controller such as the temperature, battery voltage, and
Verometer level, etc. for any unexpected values. If
another value is found to be abnormal, inspect the
bulkhead connector to interconnect cable connections for the presence of moisture or corrosion. If
moisture or corrosion is found correct by replacing
affected components. Simply cleaning the connection may not correct the problem temporarily or
permanently.
2. If the level indication on the manual gage and the
electronic level indication are approximately the
same, within +2% as indicated above, then the
system is working correctly. If you wish to change
the alarm set points, or disable the alarm, proceed
to the Set Parameters section of the controller and
make necessary changes to clear the alarm.
Battery Alarm
• The Low Battery Alarm indicates that the battery
or power supply voltage for the system has dropped
below 11.5 volts.
Battery Alarm Troubleshooting Steps
1. First determine why the battery is low. For example, inspect for charging system issues, battery
problems, or excessive current draw.
a. Disconnect the solar panel power supply
cable (Yellow cable) from the lower bulkhead
connection on the electronics enclosure.
b. Evaluate connections for any corrosion that may
have prevented current from reaching the battery.
If corrosion is found clean or replace affected components as necessary, and place back into service
with a fully charged battery pack in place.
c. Test the output from the solar panel power
supply cable (yellow) with a volt meter. Voltage from this cable should read 18 - 20VDC,
when the sun is shining directly on the panel,
or the Line Power Supply - LPS connected to
AC current is in use. If voltage is low, service,
or replace solar or LPS components as necessary.
d. If everything has checked out to this point,
open the control panel assembly to expose
the battery pack. Next un-plug the battery
pack at the cable connection on the left side
of the enclosure. Carefully read the voltage
from the battery. Typically, the battery should
read over 12.5VDC. If no reading is found
here the fuse to the battery is blown and must
be replaced. Contact YZ Systems for the a
replacement.
Note: Use only the orginally specified fuse for replacement.
e. Finally to evaluate for possible excessive current
draw. Begin by disconnecting the cables one at a
time to each solenoid and to the verometer. Note
the change in voltage reading on the screen as
any one cable is disconnected. Should you find
one with a significant effect on the system voltage,
that component should be replaced.
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 84
NJEX 7300G ver.08-2018
Section 13: 7300G System Troubleshooting
2. If problem can not be resolved at this point contact YZ Systems Technical Service.
Signal Alarm
Signal Alarm & Non-Alarm
Troubleshooting Steps
1. The Loss of Flow alarm will only be active with
a Linear or Non-linear Analog signal. This alarm
• The Loss / Signal alarm will be active only in the
will be activated any time the flow signal goes
Analog Proportional-To-Flow mode. It indicates
completely away or drops below .5v (2Ma).
that the flow signal voltage has dropped below
Should this alarm occur check the flow signal on
.5VDC. A correct flow signal should never drop beTB1 pins 2 and 3 . Be certain the flow signal is
low 1VDC.
connected to TB1, via the ten pin connector at
pins 2 and 3. If the signal is above .5v (2Ma),
• Over Flow >125%is an indication that the flow sigcheck your grounding system. If it is .5v (2Ma)
nal is showing greater than 125% of the maximum
or less, repair the flow signal source or cable as
gas flow according to the set up conditions indicated
required.
in the parameter and calibration sections of the
controller.
2. The Overflow alarm will be indicated when the
flow signal indicates 125% of the indicated span
set point.
Non-Alarm Signal Indicators
• Low Flow indicates that the flow, as indicated by
the flow signal, has dropped to or below a level as
indicated by the Low Flow Shutoff default parameter
in the controller.
• Over Flow >110% is an indication that the flow
signal is showing greater than 110% and less than
125% of maximum gas flow according to the set up
conditions indicated in the Parameter and Calibration sections of the N-300 controller
• No Flow is an indication that the flow signal being recieved by the NJEX System currently reads
a no flow situation in the pipeline and therefore no
odorant is currently being injected. Odorization will
automatically resume when the flow signal indicates
flow in the pipeline.
• Low Flow Shut Off is an indication that the flow
signal being recieved by the odorizer, indicates
that present flow in the pipeline is less than the set
value for the Low Flow shut Off set in the in the
Parameter section of the N-300G . When the flow
rate drops below this value odorant injection stops
and therefore no odorization is presently occuring.
Odorization will automatically resume when the flow
signal returns to a level above the set point to stop
odorization.
a. If reading an analog flow signal, linear or nonlinear), a grounding reference error can cause
this condition. Check that the grounding
system is correctly in place. Read the flow
signal voltage on TB1 pins 2 and 3. If the
voltage reading on the volt meter is greater
than 5v, the problem resides with the transmitted signal. Correct as necessary at the
signal source. If the voltage on the volt meter
is within the 1-5v range, the problem is most
likely a grounding or isolation issue. This can
be corrected by re-establishing the ground or
installing a signal isolator device.
b. If the NJEX System is set to recieve a pulse
signal and this alarm activates, two issues
could generate this alarm. First, the span frequency could be set incorrectly. Recalculate
the span frequency and inspect the setting in
the Calibration section of the N-300 Controller.
The other cause could be the result of electrical noise interferance resulting in the system
intrepreing this noise as pulses.
c. If it is believed this is in error or the situation
continues to reoccur, the flow signal calibrations, and parameters should be re-calibrated
with corrected values.
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 85
Section 13: 7300G System Troubleshooting
Signal Alarm & Non-Alarm
Troubleshooting Steps, Continued
Verometer Alarms
3. Low flow indication is not an actual alarm, but
an indication that the system is reading the flow
signal to indicate the system is in the low flow shut
off condition stipulated by the low flow shut off
parameter. If it is felt this indicator should not be
on, given the current flow, first check the parameter for the Low Flow Shut-Off to verify it is set as
desired. As a second step, evaluate the flow signal being recived. Verify that the signal indicats
the correct flow, and that the signal spanned and
zero referenced correctly. If necissary correct as
required.
• Vmtr-Cable alarm indicates a failure to comunicate
between the verometer and the N-300G controller.
There are a variety of Veromter alarms monitored
by the N-300 Controller to ensure correct and safe
operation of the NJEX System. The alarms relating
to Verometer performance and their description is as
follows:
• No Fill alarm is activated triggered if the Verometer
fails to fill to 100% within 6 minutes after a fill is
requested.
• Slow Fill alarm is indicated when a fill of the
Verometer is requested and the Verometer does not
4. Overflow indicator will activate when the flow
fill to 100% within 3 minutes. This alarm actuates
signal is showing greater than 110% and less than
with either an automatic or manual fill request.
125% of the maximum gas flow according to the
• Leakage is indicated when pump displacement is
set up conditions indicated in the parameter and
calculated with a greater than 50% above paramcalibration sections of the N-300 controller.
eter safety. As if Verometer was leaking fluid and
system will not continue to refill.
a. If reading an analog flow signal, linear or non-
linear), a grounding reference error can cause
• Flvalv-Fail alarm indication is signaled if the level in
this condition. Check that the grounding
the Verometer increases when a fill is not requestsystem is correctly in place. Read the flow
ed by the controller.
signal voltage on TB1 pins 2 and 3. If the
voltage reading on the volt meter is greater
• OdorInlet Cable alarm indicates a failure to comuthan 5v, the problem resides with the transnicate between the fill valve pressure transducer on
mitted signal. Correct as necessary at the
the Bulk Odorant Storage Tank side and the N-300G
controller.
signal source. If the voltage on the volt meter
is within the 1-5v range, the problem is most
likely a grounding or isolation issue. This can • OdorInlet Lo alarm indicates that the odorant pressure has dropped lower than defined in the set up
be corrected by re-establishing the ground or
parameters in the N-300G controller.
installing a signal isolator device.
b.
If the NJEX System is set to recieve a pulse
signal and recieve this alarm, two issues
could genreate this alarm. First, the span frequency could be set incorrectly. Recalculate
the span frequency and inspect the setting in
the Claibration section of the N-300 Controller. The other cause could be the result of
electrical noise interferance resulting in the
system intrepreing this noise as pulses.
• OdorInlet Hi alarm indicates that the odorant
pressure has exceeded the maximum pressure as
defined in the set up parameters in the N-300G
controller.
• XTank - Cable alarm indicates a failure to comunicate between the Expansion Tank transducer on the
fill valve assembly and the N-300G controller.
• XTank Low alarm indicates the pressure in the
expansion tank has dropped below the defined minimum set point for the Expansion Tank.
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 86
NJEX 7300G ver.08-2018
Section 13: 7300G System Troubleshooting
1. Inspect all cables for any external damage such
• XTank High alarm indicates the pressure in the
as cuts or crimps in the external cable sleeve or
expansion tank has exceeded the defined high presmoisture inside the cable connector.
sure set point for the Expansion Tank.
Non-Alarm Verometer Indicators
• Overfill is indicated when the Verometer has filled
to a level of 112% or greater.
• Fillrate alarm is indicated when the Verometer fills
to 112% or greater in less than 10 seconds.
Verometer Troubleshooting Steps
2. Loosen and inspect the cable orientation pins
for correct positioning. All cables have a specific
mating connection to ensure that the correct pins
on the opposing sides of the connector align.
These pins must be correctly aligned to ensure
the electronic signals reach the correct electronic
address in the microprocessor.
1. Verify the following operating conditions, and correct as necessary:
3. Reconnect cables as noted above, ensuring that
the alignment pins are mated correctly and that
locking rings are tight. Observe if the alarm is still
active, if it is, contact YZ Technical Services.
a. Expansion tank pressure is set at 25 psi (1.72
Bar).
Verometer No-Fill Alarm Troubleshooting Steps
b. Bulk odorant storage tank pressure is at least
5 psi (.34 Bar) and not more than 10 psi (.69
Bar), above expansion tank pressure.
When an active No-Fill alarm is indicated the following steps should be taken:
c. Actuation supply pressure is maintained during operation at 75 psi (5.17 Bar).
Before attempting to troubleshoot the fill valve, verify
that the status switch is in the run position and the
Verometer is not in a full level position. The fill valve
commands can not be processed if the Verometer is
full, or the status switch is in the standby position.
d. Verify that the bulk odorant storage tank has
odorant and all valves are in the correct positions to allow the verometer to fill.
2. Important: Check and adjust the throttling valve
position for effect on filling prior to proceeding to
troubleshooting.
IMPORTANT NOTE:
1. Check actuation gas supply filter and valves for
possible restriction or closure, and adjust or replace as necessary.
2. Check odorant filters for possible restriction and
Restart the NJEX System to inspect the verometer for a
replace as necessary.
fill. If no fill occurs, observe if a No Fill alarm is indicated
under the Verometer display sequence and trouble3. Check tubing between bulk odorant storage tank
shoot accordingly.
and enclosure for damage. If tubing is crimped,
bent or damaged by any form that could restrict
Verometer Cable Alarm flow, replace the tubing.
Troubleshooting Steps
When an active VMTR-Cable alarm is indicated the
following steps should be taken:
4. Test for adequate fill valve pneumatic actuation
pressure. Place a guage at the tubing connection
located on top of the fill valve by disconnecting
tubing. During a fill, the valve actuation pressure
should be 75 psi (5.17 Bar).
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 87
Section 13: 7300G System Troubleshooting
Verometer No-Fill Alarm Troubleshooting Steps, Continued
5. Verify that the status switch be in the run position.
If no pneumatic supply is received at the fill valve
when a fill is called for, test electrical supply to the
fill
valve solenoid located on the left. With a volt
meter the current should read 12VDC at the fill
valve solenoid when a fill is requested. If voltage
is present when a fill is requested, but gas will not
flow to the fill valve, replace the solenoid.
Verometer Slow-Fill Alarm Troubleshooting Steps
IMPORTANT NOTE:
Prior to troubleshooting a slow fill alarm, verify that the
Verometer is not in a full level position as the fill valve
commands can not be processed if the Verometer is
full.
1. Inspect the actuation gas supply filter for possible
restriction, and replace as necessary.
2. Inspect the odorant filters for possible restriction
a. If a volt meter is unavailable, you may test
and replace as necessary.
fire the pump with the test switch to verify the
other solenoid and cable are active. To test,
3. Check tubing between bulk odorant storage tank
temporarily switch the solenoid cables. Now
and enclosure for damage. If tubing is crimped,
when the test switch is activated, the fill valve
bent or damaged by any form that could restrict
solenoid should send pneumatic supply gas
flow, replace the tubing. Verify that an adequate
to the loosened connection at the fill valve for
flow of odorant is supplied to the fill valve.
approximately .2 seconds each time the test
switch is activated. If this does occur there
4. Test for adequate fill valve pneumatic actuation
is some problem with the fill signal getting to
pressure. Place a guage at the tubing connection
the fill solenoid. However, if the solenoid still
located on top of the fill valve by disconnecting
does not send actuation gas to the fill valve
tubing. During a fill, the valve actuation pressure
the solenoid is bad and should be replaced.
should be 75 psi (5.17 Bar).
If the signal is not getting to the solenoid, test at
5. Disassemble, clean, and rebuild fill valve assemterminal strip TB2, located inside the termination
bly.
enclosure just below the N-300 Controller, with a
volt meter at pins 7 positive (orange wire) and 8
negative (violet wire), for 12VDC when the fill is Verometer Leakage Alarm Troubleshooting Steps
requested from the N-300 controller. If the voltage is present, check the wiring for proper polarity
connections. Verify that pin 7 has an orange wire, 1. Inspect the system for any obvious leaks and
repair as necessary.
and pin 8 a violet wire connected.
6. If an electrical signal is not present when a fill is
requested, check all cables for corrosion, moisture, or damage and replace if any signs of the
previous mentioned problems are present and
perform the test again.
7. If an electrical signal is still not present contact YZ
Systems Technical Service.
2. If the Leakage alarm occurs during purging of the
system or the packing of the lines with odorant on
a new system, a manual refill of the verometer will
be required and this will clear the alarm.
3. Verify that the pump displacement parameter correctly matches the actual pump performance on
the system, and correct if necessary.
4. Verify the correct balance of pressures between
the pump actuation pressure and the pipeline
pressure, refer to figure 4, in the System Flow
Schematic on page 6, Section 2: System Installation for specific system pressures.
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 88
NJEX 7300G ver.08-2018
Section 13: 7300G System Troubleshooting
5. If the pipleine pressure is near or below 250 psi
(17.24 Bar), a back pressure regulating device
must be installed immediately outside the NJEX
enclosure, on the odorant line leading to the pipeline injection point. If this device is installed, verify
that is is maintaining a back pressure regulating
device above 250 psi (17.24 Bar).
6. Verify that the total run of tubing from the pipeline
to the NJEX System does not exceed 15’ (4.5
Meters).
Verometer Fill Valve Failure Alarm
Troubleshooting Steps
When an active Flvalv-Fail alarm is indicated the following steps should be taken:
CAUTION:
Verify the following prior to comencing work:
1. Actuation pressure is not excessive. This can
cause the fill valve solenoid to open slightly when the
pump strokes, which would open the fill valve and trigger an alarm.
2. Verify that all valves in the system are in the correct position. A valve in the incorrect position may
allow odorant to enter the Verometer via a path other
than through the fill valve, resulting in a fill valve
alarm. For example, if valves V2 and V3 were left
open, the result would cause a fill valve alarm.
Verometer at 116%
1. Initiate a forward purge to lower Verometer
level to approximately 50% and return the NJEX
System to normal operating pressures and valve
positions.
2. Place the NJEX System in standby mode and observe level changes in the Verometer by monitoring
the Verometer level status on the N-300 controller
display.
3. If the level increases disconnect the pneumatic
supply tube at the top of the fill valve to inspect if
actuation gas is present. If actuation gas is not
present when the tube is disconnected, and the
Verometer level continues to increase, repair or
replace the fill valve. If the actuation gas is present in the tube when disconnected, the Verometer
level should stabilize after disconnecting the fill
valve pneumatic supply tube. Proceed to step 4.
4. While the fill valve pneumatic supply tube is disconnected, toggle the mode switch from run to standby
and back again. This should stop and start the pneumatic supply.
a. If the pneumatic supply stays on, disconnect
the fill valve solenoid cable. If disconnecting
the cable does not stop the pneumatic supply,
replace the solenoid.
b. If disconnecting the cable in step 4a listed
above caused the pneumatic supply to stop,
check the electrical connections for the presence of moisture. Dry the connections if moisture is present and try test again. If moisture
on the solenoid was not the problem, check
the interconnect cable for possible moisture or
corrosion where it connects to the mechanical
enclosure. Replace if corrosion or moisture is
present.
5. If the step taken above do not resolve the issue
entire control head assembly must be replaced.
Verometer Odorant Inlet Cable Alarm
Troubleshooting Steps
When an active OdorInlet-Cable alarm is indicated
the following steps should be taken:
1. Inspect all cables for any external damage such
as cuts or crimps in the external cable sleeve or
moisture inside the cable connector.
2. Loosen and inspect the cable orientation pins for
correct positioning. All cables have a specific mating
connection to ensure that the correct pins on the opposing sides of the connector align. These pins must
be correctly aligned to ensure the electronic signals
reach the correct electronic address in the microprocessor.
3. Reconnect cables as noted above, ensuring that
the alignment pins are mated correctly and that
locking rings are tight. Observe if the alarm is still
active, if it is, contact YZ Technical Services.
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 89
Section 13: 7300G System Troubleshooting
Verometer Odorant Inlet Low Alarm Troubleshooting Steps
Verometer Expansion Tank Cable
Alarm Troubleshooting Steps
When an active OdorInlet Lo alarm is indicated the
following steps should be taken:
When an active XTank-Cable alarm is indicated the
following steps should be taken:
1. Verify that the bulk odorant storage tank pressure
exsits in a range of 30 to 35 psi (2.07 to 2.41 Bar)
and re-establish the correct pressure if necissary.
1. Inspect all cables for any external damage such
as cuts or crimps in the external cable sleeve or
moisture inside the cable connector.
2. Inspect the alarm set point programmed into
the N-300 controller and verify that it is correclty
programmed and correct if necessary, refer to the
parameters section on programming the N-300
controller Sections 5 & 6, page 25 or page 33
depending on the mode of operation.
2. Loosen and inspect the cable orientation pins
for correct positioning. All cables have a specific
mating connection to ensure that the correct pins
on the opposing sides of the connector align.
These pins must be correctly aligned to ensure
the electronic signals reach the correct electronic
address in the microprocessor.
3. Observe if the alarm is still active, if it is, contact
YZ Technical Services.
Verometer Odorant Inlet Hi Alarm Troubleshooting Steps
When an active OdorInlet Hi alarm is indicated the
following steps should be taken:
1. Verify that the bulk odorant storage tank pressure
exsits in a range of 30 to 35 psi (2.07 to 2.41 Bar)
and re-establish the correct pressure if necissary.
2. Inspect the alarm set point programmed into
the N-300 controller and verify that it is correclty
programmed and correct if necessary, refer to the
parameters section on programming the N-300
controller Sections 5 & 6, page 25 or page 33
depending on the mode of operation.
3. Observe if the alarm is still active, if it is, contact
YZ Technical Services.
3. Reconnect cables as noted above, ensuring that
the alignment pins are mated correctly and that
locking rings are tight. Observe if the alarm is still
active, if it is, contact YZ Technical Services.
Verometer Expansion Tank
Low Alarm Troubleshooting Steps
When an active XTank Low alarm is indicated the following steps should be taken:
1. Verify that the expansion tank pressure is at 25
psi (1.72 Bar) and correct if necessary.
2. Inspect the alarm set point programmed into
the N-300 controller and verify that it is correclty
programmed and correct if necessary, refer to the
parameters section on programming the N-300
controller Sections 5 & 6, page 25 or page 33
depending on the mode of operation.
3. Observe if the alarm is still active, if it is, contact
YZ Technical Services.
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 90
NJEX 7300G ver.08-2018
Section 13: 7300G System Troubleshooting
Verometer Expansion Tank
High Alarm Troubleshooting Steps
When an active XTank High alarm is indicated the
following steps should be taken:
1. Verify that the expansion tank pressure is at 25
psi (1.72 Bar) and correct if necessary.
the odorant storage tank and the NJEX System.
This should slow the fill rate. Repeate step 3 until
the NJEX System fills in over 30 seconds, and
the fill valve turns off between 100 - 108% of fill
volume.
Verometer Fill Rate Non-Alarm
Indicator Troubleshooting Steps
When an active Fillrate non-alarm is indicated the fol2. Inspect the alarm set point programmed into
lowing steps should be taken:
the N-300 controller and verify that it is correclty
programmed and correct if necessary, refer to the
1. Verify the correct set pints on the following presparameters section on programming the N-300
sures.
controller Sections 5 & 6, page 28 or page 35
depending on the mode of operation.
a. Expansion Tank set at 25 psi (1.72 Bar)
3. Observe if the alarm is still active, if it is, contact
b. Bulk Tank set at 30 - 36 psi (2.07-2.41 Bar)
YZ Technical Services.
Verometer Overfill Non-Alarm Indicator Troubleshooting Steps
When an active Overfill non-alarm is indicated the
following steps should be taken:
IMPORTANT NOTE:
Prior to troubleshooting an overfill indicator verify that
the Verometer is not in a full level position as the fill
valve commands can not be processed if the Verometer is full.
1. Empty the Verometer by performing a forward
purge.
2. After returning all pressures and valves to their
normal operating position. Observe the Verometer level for 5 -10 minutes and note if a change
in the Verometer level occurs without operator
influence. If level in the Verometer does increases without operator influence, proceed to the Fill
Valve Trouble- shooting section of this manual on
page 89. If the level in the Verometer does not
increase then otherwise proceed to the next step
below.
c. System Supply set at 75 psi (5.17 Bar)
2. Empty the Verometer by performing a forward
purge. Re-establish the pressures and valves to
their normal operating position, and then proceed
to step 3.
3. Perform the Verometer fill procedure as indicated
in Section 12: System Maintenance, page 78, and
adjust fill rate control valve V9 to achieve a apporiate fill rate.
Pump Alarms
There are three pump alarms monitored by the N-300
Controller to ensure correct and safe operation of the
NJEX System. The alarms relating to the pump performance and their description is as follows:
• Over Pump alarm will indicate if the actual pump
displacement exceeds the programed pump displacement value by 30%.
• Under Pump alarm will indicate when the actual
pump displacement ranges from 30 - 75% of the
programed pump displacement value.
3. Initiate a Verometer fill and record the time
• Pump Failure alarm will indicate when the actual
required to fill to 100%, and note the level. If the
pump displacement is less than 25% of the proVerometer fills in a time faster than 30 seconds,
gramed pump displacement value.
partially close the volume throttling valve between
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 91
Section 13: 7300G System Troubleshooting
IMPORTANT NOTE:
When a system re-start is requested at completion or
during the the service of an NJEX System, use the N-300
controller to stop and restart the system from the main
menu.
After a restart, the default values will be used for
operation, and alarms will be cleared until actual
performance values can be ascertained by the N-300
controller. In the case of the pump displacement this
may not occur until the pump has drained the Verometer to approximately the 90% level. An * will appear
by the indicated pump displacement after a stop and
restart. This indicates that the displayed value is a
default parameter value, which is not a real pump
performance indication. As a result, this defualt pump
performance indication should not be relied upon as
the actual pump performance.
Do not prematurely assume the problem has been
resolved, simply due to the disappearance of the indicators and alarms immediately after a re-start of the NJEX
System.
Pump Over Pumping Alarm Troubleshooting Steps
When an active Over Pumping alarm is indicated the
following steps should be taken:
1. This alarm may occur after service or maintenance has been performed due to variances in
the Verometer level during the conduct of service. If service has recently been performed, and
this alarm occurs, stop and restart the system to
observe if the alarm re-occurs, thus indicating a
real alarm. If the alarm re-occurs continue to step
2 below.
2. Verify that the operating conditions remain
unchanged and correct as needed. The pipeline
pressure should be at least 250 psi (17.24 Bar).
a. Inspect the installation for the use of a back
pressure regulating device. For pipeline pressures less than 250 psi (17.24 Bar) a back
pressure regulating device must be installed
immediately outside the NJEX enclosure on
the odorant line leading to the pipeline injection point. A back pressure regulating device
can aliviate the over pumping conditions that
can result by the varying pressures and temperatures in the pipeline for pressures less
than 250 psi (17.4 Bar). If a back pressure
regulating device is not installed as described
above, install the device before proceeding.
b. If line pressure is less than 250 psi (17.24
Bar) and a back pressure regulating device is
installed on the odorant injection line, inspect
the back pressure regulating device for proper
operation, and installation as described
above.
3. Verify that the actuation pressure remains unchanged from previous setting.
4. Verify the pump displacement parameter setting is
the same as the desired pump displacement.
Pump Under Pumping Alarm Troubleshooting Steps
When an active Under Pumping alarm is indicated
the following steps should be taken:
1. If maintenance or repair has just been performed,
stop and restart the system to see if the alarm
re-occurs indicating a real alarm. If the alarm reoccurs continue to the next step.
2. Verify operating conditions. Correct as needed.
3. Verify that the pump displacement parameter
matches the accurate pump displacement.
Note: When starting a system for the first time the
expected pump displacement should be set in the
N300G controller parameters section. The system
should then be run through at least one complete
Verometer cycle to get an accurate pump displacement reading. Actual installation conditions may have
an effect on the real pump performance. Use the
accurate pump displacement as calculated by the
controller for the final pump displacement parameter
to be entered into the controller.
4. Check to see if the pump operation sounds the same
as previously. A distinct bottoming of the plunger
piston and return a return to the top of the plunger
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 92
NJEX 7300G ver.08-2018
Section 13: 7300G System Troubleshooting
piston housing should be audible with each actua3.
tion. If not, remove the actuation cylinder. Inspect for
a broken return spring, or a stuck / sticking actuator
piston or plunger. Replace the spring if broken. Clean
4.
and Lubricate the actuation cylinder and actuation
piston assembly. Manually push the plunger into the
seal assembly and ensure it returns completely and 5.
freely. If sticking continues to occur, the seals should
be replaced. Reassemble and see if alarm reoccurs
after a system restart.
5. If pump actuation is normal:
a. Inspect the discharge lines and valves for a
restriction.
b. Inspect all the check valves on the discharge
side of the pump, from the NJEX System to
the pipeline, for proper operation.
c. A back pressure regulating device must be
installed immediately outside the NJEX enclosure on the odorant line leading to the pipeline injection point. Perform a forward purge
noting the time required to empty the Verometer. If the time to empty the Verometer is
longer than 30-45 seconds, after the level
begins dropping, replace the Verometer filter,
and restart the system. During the system
restart monitor the controller and observe if
the alarm reoccurs.
d. Replace the inlet check valve to the pump.
6. If problems persist, contact YZ technical service
for additional assistance.
Pump Failure Alarm
Troubleshooting Steps
When an active Pump Failure alarm is indicated the
following steps should be taken:
1. Verify that the Verometer has odorant in it, and
that the expansion tank has the proper pressure
in it of 25 psi ( 1.72 Bar).
Note: If the Verometer is empty, restart the system.
Stroke to the pump to cyle odorant through the system
and observe if the alarm reoccurs.
2. Verify that the pump volume spacer matches the
pump displacement parameter in the controller.
Verify that all valves and check valves are properly set system operation. Inspect for valve settings
that can restrict pump displacement.
Check the actuation gas filter for flow resriction or
closure.
Ascertain whether the pump is properly stroking.
a. If pump actuation does not occur as the Test
key is pressed, remove the actuation gas
line at the top of the pump and test the pump
stroke again. As the Test key is pressed,
there should be a burst of gas at the open actuation supply connection. If gas is released
from the open actuation supply line skip to
subsection 5.g. , otherwise continue to 5.b.
b. If gas is not blown from the loose connection,
disconnect the hose leading from the pump
solenoid to air relay valve. Test stroke the
pump again and observe if gas is discharged
from the small hose.
c. If gas comes out of the solenoid briefly when
the Test key is pressed the solenoid is good
but, the air relay valve requires service or
repair.
d. If small hose does not release gas, remove
the pump solenoid wiring cable, the solenoid
located on the right of the two solenoids.
Next, connect a volt meter to the two parallel posts of the solenoid cable. As the Test
key is pressed, obseve if a 12VDC current
becomes present.
If a voltage is detected the solenoid should
be replaced.
If a volt meter is unavailable, the fill valve
signal may be used to test the solenoid.
First, test the fill valve function to verify that
it is working properly before using it to test
the pump solenoid. Second, verify that the
Verometer is less than 100 % full on the level
indication. Thrid, take the cable connected to
the fill valve solenoid, remove it and re-connect it to the pump solenoid. With the status
key in the run mode instruct the NJEX System
to fill. If the solenoid is good, you should get
gas from the solenoid. To stop it, place in the
NJEX System in standby mode and gas flow
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 93
Section 13: 7300G System Troubleshooting
should stop. If no gas flows the pump solenoid is bad and should be replaced.
If the pump is low on oil, or out of oil, fill to
the oil level reference mark inside of the oil
reservoir about half way down with proper oil.
If the pump was completely out of oil, or if
the level was below the top of the nipple, the
pump will need repeated stroking to permit
the trapped air to work out of the oil reservoir.
If possible, let the pump run overnight with
the reservoir cap removed. If refilling with
oil seems to bring the displacement back,
monitor for a while and observe if the oil level
drops again. If the pump continues to use oil,
service the seals and diaphragm servicing.
e. If the above test indicates the solenoid is
functioning, next determine if the signal is being sent by the controller, or lost in the cabling
and connections. Open the termination enclosure ,enclosure door just below the N-300,
and connect your volt meter to TB2 terminals
9 and 10, with 9 being the positive (yellow
wire) and 10 being the negative (blue wire).
Now, test fire the pump with the test switch.
A momentatry voltage pulse, aproximately
.2 seconds in duration, should be observed.
This will be a DC voltage pulse not exceed6. Assure that the pump is properly primed by:
ing 12VDC. If the pulse is at the termination
panel next check the polarity of connections
a. Placing the unit in stand by.
of the wiring. The terminal 9 should have a
yellow wire attached and, the terminal 10
b. Closing valve V8 at the pipeline.
should have a blue wire attached. If the
polarity is correct, on the wiring, the cable
c. Open valve V3.
assembly to the solenoid should be replaced.
d. Test stroke the pump 15 - 20 strokes with the
f. If no voltage is detected, contact the technical
Test key, then place back in standby.
service department at the factory.
e. Close valve V3 and open valve V8.
g. With the actuation gas line reconnected to
the pump, test stroke the pump. Observe if
f. Place the controller in run mode.
there is an audible pump stroke with the piston
bottoming out and returning to the top of the
g. Monitor the pump performance and observe if
pump housing. If an audible pump actuation is
pump actuation is occurring.
not present , remove the actuation cylinder and
inspect for a broken return spring, or a stuck /
7. If problems persist, contact YZ technical service
sticking plunger assembly. Replace the spring
for additional assistance.
if broken, clean and relubricate the plunger
assembly and actuation cylinder. Make certain
the seals are not sticking to the plunger assembly.
h. Inspect the pump oil level and action during
actuation. The oil level should rise slightly
during an actuation of the pump, and the oil
level must be above the nipple connecting the
reservoir to the pump body. The oil should
not smell strongly of odorant and the oil color
should be red, not clear. If the oil appears
clear and / or smells strongly of odorant, the
pump diaphragm and seals need service.
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 94
NJEX 7300G ver.08-2018
Appendix A:
Illustrations
NJEX Model 7000F Pump
Assembled, Figure 201
Actuation Gas
Replacement Pump Seal Kit
PN: D3-0131
Odorant
Actuation Gas
Hydrualic Oil
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 95
Appendix A:
Illustrations
NJEX Model 7000F Pump
Actuation Assembly,
Exploded View, Figure 202
Stroke Spacers
Part VolumeColor
Number
100% Red B0-1061
80% Green B0-0103
70% Yellow B0-0104
60% Black B0-0062
50% Purple B0-0102
40% Silver B0-0101
30% Blue B0-0100
20% Gold B0-0063
Actuation Cylinder
PN: B0-0078
Cartridge Nut
PN: B0-0083
Piston Seal
PN: A6-0084
Plunger Seal
PN: A6-0018
Plunger Guide Bushing
PN: B0-0084
Actuation Piston Assembly
PN: B0-0087
Cartridge Body
PN: B0-0085
O-Ring
O-Ring
PN: A5-2023
Plunger Seal
PN: A6-0018
Actuation Spring
PN: C3-0043
O-Ring
PN: A5-2115
Oil Reservoir Cap
PN: B0-0068
Actuation Spring Dampener
PN: B0-0095
Drain Plug
PN: A2-0177
Pump Housing
PN: B0-0069
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 96
NJEX 7300G ver.08-2018
Appendix A:
Illustrations
NJEX Model 7000F Pump
Diaphragm Cartridge,
Exploded View, Figure 203
Pump Housing
PN: B0-0069
O-Ring
PN: A5-2115
O-Ring
PN: A5-1121
Cap
PN: B0-0072
O-Ring
PN: A5-2023
O-Ring
PN: A5-1027
Diaphragm
PN: A6-0087
Cartridge
PN: B0-0070
Piston
PN: B0-0071
Spring
PN: C3-0002
O-ring
PN: A5-1129
O-Ring
PN: A5-1131
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 97
Appendix A:
Illustrations
NJEX Model 7000F Pump
Check Valve Assembly,
Exploded View, Figure 204
Discharge Check Cartridge
PN: B0-00756
O-ring
PN: A5- 1115
1115A5-1129
Check Wafer
PN: B0-0074
Sleeve
PN: B0-0076
O-Ring
PN: A5-1012
Check Wafer
PN: B0-0074
Seal Nut
PN: B0-0074
O-Ring
PN: V-014
A5-1014
O-Ring
PN: A5-1016
Backup O-Ring
PN: A5-0093
Pump Housing
PN: B0-0069
Check Wafer
PN: B0-0074
Inlet Check Cartridge
PN: B0-0073
O-Ring
PN: A5-1115
O-Ring
PN: A5-1016
Backup O-Ring
PN: A5-0093
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 98
NJEX 7300G ver.08-2018
Appendix A:
Illustrations
Fill Valve, Exploded View,
Figure 205
SS Bolts, 4 each
PN: C0-0215
Tubbing Fitting
PN: A1-0012
Upper Housing
PN: A3-0205
O-Ring1
PN: A5-1027
O-Ring
PN: A5-1030
Dart
PN: A3-0206
O-Ring1
PN: A5-1012
Spring
PN: C3-0048
O-Ring1
PN: A5-1021
Diaphragm1
PN: A6-0087
O-Ring1
PN: A5-1023
Lower Housing
PN: A3-0207
Seat
PN: A3-0208
Check Valve Wafer1
PN: B0-0074
O-Ring1
PN: A5-1017
Inlet Fitting Weldment
PN: A3-0177
1
A component of the Fill Valve Seal Kit
PN: D3-0141
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 99
Appendix A:
Illustrations
VM-1100 Verometer,
with Filter Assembly
Exploded View, Figure 206
V-020
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 100
NJEX 7300G ver.08-2018
Appendix A:
Illustrations
Bulk Odorant Filter
Figure 207
*O-Ring
P.N A5-1334
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 101
Appendix A:
Illustrations
NJEX Gas Filter
Figure 208
Gas Filter Label
PN: D5-0074
In
Out
Gas Filter Cap
PN: C4-0130
O-Ring 334 Viton
PN: A5-1334
Filter Suspension
Rod
PN: C4-0109
Coalescing Filter Element1
PN: C4-0133
Filter Locator Bushing
PN: C4-0132
Filter Retainer Washer
PN: C4-0102
1/4” - 20 SS Hex Nut
PN: C0-0095
Filter Bowl
PN: C4-0131
NJEX Gas Filter Replacement Element
PN: C4-0133
1
1/4” NPT Drain Cock
PN: A3-0044
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 102
NJEX 7300G ver.08-2018
Appendix A:
Illustrations
Electronics Assembly
Figure 209
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 103
Appendix A:
Illustrations
SPS-12 Solar Power Supply Unit
Figure 210
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 104
NJEX 7300G ver.08-2018
Appendix A:
Illustrations
LPS-120/240 Charger Supply
Unit, Figure 211
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 105
Illustrations
1E-0289.dwg ()
Heater Wiring Diagrahm Optional, Figure 212
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 106
NJEX 7300G ver.08-2018
2 of 3
Appendix A:
Appendix B:
N-300 Modbus Specifications
Communications Settings
Protocol.............................................................................. Modbus
Data framing....................................................................... Modbus RTU and ASCII
Slave Address range.......................................................... 0-247, 0 = Modbus disabled
Baud rates.......................................................................... 1200, 2400, 4800, and 9600
Number of data bits............................................................ 7 or 8
Parity.................................................................................. None, Odd, Even
Stop bits: ........................................................................... 1 or 2
Serial communications:...................................................... Redundant RS-485 2 wire
N300 Modbus Function Support
Function Code
Function
Description
1.............................. Read Coil Status................... Reads the ON/OFF status of discrete outputs (coils)
3.............................. Read Holding Registers........ Reads the binary contents of holding registers
5.............................. Force Single Coil.................. Forces a single coil to either the ON or OFF state
6.............................. Preset Single Registers........ Presets a value into a single holding register
16............................ Preset Multiple Registers .Presets values into a sequence of holding registers
Boolean Registers
The Boolean data type could be used for status, and control. The discrete outputs or “coils” as defined by the
Modbus specification are read/write registers. This ON/OFF data type can be manipulated using Modbus functions 1 and 5.
The valid address range for this data type is 00001 to 09999.
Function 1, allows reading a single coil per query
Function 5, allows writing single or multiple coils per query.
Control Functions
The control functions available via Modbus are listed below. The registers are accessed using Modbus functions 1 and 5. The master device can initiate a state change by setting a control coil. The N300 controller
will clear non-toggle type coils to acknowledge the state change has been acted upon. Toggle type coils hold
their current state until changed either locally or remotely. The local/remote load cycle control (00007) determines whether a load cycle can be initiated via contact closure (local) connected to the load cycle inputs on the
controller or by Modbus coil 00006 (remote). These coils are only active in an N300 Liquid system. Coil 00011
determines whether a remote inhibit can be initiated by a contact closure (local) connected to the inhibit inputs
on the controller or by Modbus coil 00010 (remote). Coil 00009 is used to save all the current parameters to
the controller EEPROM.
IMPORTANT:
Coil 00009, must be used to save any parameters that were changed via Modbus.
Address
Access
Description
00001............ Read/Write............... Start/Stop the pump (toggle)
00002............ Read/Write............... System Standby (toggle)
00003............ Read/Write............... Reset Accumulated Stroke Count
00004............ Read/Write............... Reset Accumulated Odorant Injected
00005............ Read/Write............... Fill Verometer (toggle)
00006............ Read/Write............... Start/Stop a Load Cycle (toggle) (Liquid System Only)
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver. 08-2018
Page 107
Appendix B:
N-300 Modbus Specifications
00119............. Read Only................ Normal (0) / Remote Inhibit (1)
00120............ Read Only (L).......... New HOU/FLOW Data
Available
00121............ Read Only................ No Load Cycle (0) / Load Cycle Active (1) – Liquid System Only
Alarm Functions
The alarm functions available via Modbus are listed below. The registers are accessed using Modbus function
1. All the alarms are latching and provide a “since the last read” output where a set condition will hold it’s state
until a read of that particular register was made by the master device. Once a read is made, the alarm will
reflect the current state.
Address
Access
Description
01001............ Read Only................ Global Alarm (1) (set if any alarm condition exists)
01002............ Read Only................ Pump Failure Alarm (1)
01003............ Read Only................ Over Pump Alarm (1)
01004............ Read Only................ Under Pump Alarm (1)
01005............ Read Only................ Verometer Cable Alarm (1)
01006............ Read Only................ Verometer Slow Fill Alarm (1)
01007............ Read Only................ Verometer No Fill Alarm (1)
01008............ Read Only................ Verometer Over Fill non-Alarm (1)
01009............ Read Only................ Verometer Leakage Alarm (1)
01010............ Read Only................ Verometer Fill Valve Alarm (1)
01011............. Read Only................ Verometer Fill Rate non-Alarm (1)
01012............ Read Only................ Signal Low Flow non-Alarm (1)
01013............ Read Only................ Signal No Flow non-Alarm (1)
01014............ Read Only................ Signal Overflow non-Alarm (1)
01015............ Read Only................ Signal Overflow Alarm (1)
01016............ Read Only................ Signal Loss of Signal Flow Alarm (1)
01017............ Read Only................ Low Battery Alarm (1)
01018............ Read Only................ External Tank level High Alarm (1)
01019............ Read Only................ External Tank level Low Alarm (1)
01020............ Read Only................ Expansion Tank Pressure High Alarm (1)
01021............ Read Only................ Expansion Tank Pressure Low Alarm (1)
01022............ Read Only................ Expansion Tank Pressure Cable Alarm (1)
01023............ Read Only................ Odorant Inlet Pressure High Alarm (1)
01024............ Read Only................ Odorant Inlet Pressure Low Alarm (1)
01025............ Read Only................ Odorant Inlet Pressure Cable Alarm (1)
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 108
NJEX 7300G ver.08-2018
Appendix B:
N-300 Modbus Specifications
Boolean Registers
Control Functions, Continued
Address
Access
Description
00007............ Read/Write............... Local/Remote Load Cycle Control (toggle) (Liquid System Only)
00008............ Read/Write............... Proportional to Time/Flow mode (toggle)
00009............ Read/Write............... Save Parameters to EEPROM
00010............ Read/Write............... Remote Inhibit / Run the N-300 (toggle)
00011............. Read/Write............... Local/Remote Inhibit Control (toggle)
Status Functions
The status functions available via Modbus are listed below. The registers are accessed using Modbus function 1. Status labeled with an “L” after the Access types are latching type status. A latching status provides a
“since the last read” type status where a set condition will hold it’s state until a read of that particular register
was made by the master device. Once a read is made, the status will reflect the current state.
Address
Access
Description
00101............ Read Only................ System Stopped (0) / Running (1)
00102............ Read Only................ Verometer Not-Filling (0) / Filling (1)
00103............ Read Only................ Not in Standby (0) / Standby (1)
00104............ Read Only................ Memory Module Invalid (0) / Valid (1)
00105............ Read Only................ Z-65 Backup Disabled (0) / Enabled (1)
00106............ Read Only................ English (0) / Metric (1)
00107............ Read Only................ Proportional to Time (0) / Proportional to Flow (1)
00108............ Read Only................ Analog (0) / Pulse (1)
00109............. Read Only................ Linear (0) / Non-Linear (1) or Pulses/Sec (0) / Pulses/Min (1)<-Gas PPMV(1)<-LPG
00110............. Read Only................ Gas (0) / Liquid (1)
00111............. Read Only (L).......... No Power-Up (0) / Power-Up (1) since last coil read
00112............. Read Only................ Odorant Tank Low Alarm Enabled (0) / Disabled (1)
00113............. Read Only................ Signal Alarms Enabled (0) / Disabled (1)
00114............. Read Only................ Verometer Alarms Enabled (0) / Disabled (1)
00115............. Read Only................ Pump Alarms Enabled (0) / Disabled (1)
00116............. Read Only................ Battery Alarm Enabled (0) / Disabled (1)
00117............. Read Only (L).......... No Parm Change (0) / Parm Change (1) since last coil read
00118............. Read Only .............. Normal (0) / No Flow Standby (1)
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver. 08-2018
Page 109
Appendix B:
N-300 Modbus Specifications
Integer Registers
The integer data type could be used for the Results data and configuration/control parameters. The “holding
registers” as referred to by the Modbus specification, are read/write registers. This 16-bit integer data type can
be manipulated using functions 3, 6, and 16.
Function 3, allows the host to read one or more holding registers per query.
Function 6, allows the host to write a single holding register per query.
Function 16, allows the host to write multiple holding registers per query.
Result Data Functions
The result data functions available via Modbus are listed below. The registers are accessed using Modbus function 3.
Address
Access
Description
40001.............. Read Only.................. HOU/LOU – Accum. Odorant Usage – High - Unsigned integer *See formatting info.
40002............ Read Only................ HOU/LOU – Accum. Odorant Usage – Low - Unsigned integer *See formatting info.
40003............. Read Only................. HOU/LOU - Accumulated Flow rate – High - Unsigned integer *See formatting info.
40004............ Read Only................ HOU/LOU - Accumulated Flow rate – Low - Unsigned integer *See formatting info.
40005............ Read Only................ HOU/LOU Start Date (Day of Month/Month) (1-31/1-12) - BCD
40006............ Read Only................ HOU/LOU Start Date (Century/Year) (0000-9999) - BCD
40007............ Read Only................ HOU/LOU Start Time (Seconds/Minutes) (00-59/00-59) - BCD
40008............ Read Only................ HOU/LOU Start Time (Hours/Day of Week) (00-23/0-7) - BCD
40009............ Read Only................ HOU/LOU End Date (Day of Month/Month) (1-31/1-12) - BCD
40010............ Read Only................ HOU/LOU End Date (Century/Year) (0000-9999) – BCD
40011............. Read Only................ HOU/LOU End Time (Seconds/Minutes) (00-59/00-59) – BCD
40012............ Read Only................ HOU/LOU End Time (Hours/Day of Week) (00-23/0-7) – BCD
40013............ Read Only................ Stroke Count High (0000-9999) – BCD
40014............ Read Only................ Stroke Count Low (0000-9999) – BCD
40015............ Read Only................ Total Odorant Injected High (0000-9999) – BCD *See formatting info.
40016............ Read Only................ Total Odorant Injected Low (0000-9999) – BCD *See formatting info.
40017............ Read Only................ Model Number – Unsigned Integer *See formatting info.
40018............ Read Only................ Serial Number (xxxxx) – Unsigned Integer
40019............ Read Only................ Verometer Calibration Data – Unsigned Integer *See formatting info.
40020............ Read Only................ Odorant Tank Level (xxx %) – Unsigned Integer
40021............ Read Only................ Expansion Tank Pressure (xxx.x psi / x.xxx bar) – Unsigned Integer
40022............ Read Only................ Odorant Inlet Pressure (xxx.x psi / x.xxx bar) – Unsigned Integer
40023............ Read Only................ Calculated Time per Stroke High – Unsigned Integer – sec.
40024............ Read Only................ Calculated Time per Stroke Low – Unsigned Integer - (x.xx sec.)
40025............ Read Only................ Verometer Level (xxx.x %) – Unsigned Integer
40026............ Read Only................ Battery Voltage (xx.x volts) – Unsigned Integer
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 110
NJEX 7300G ver.08-2018
Appendix B:
N-300 Modbus Specifications
* Model Specific Formatting information for Result Data functions
Address
Description
40001...................... High bytes for Accumulated odorant injected, combine with address 40002 for total.
40002...................... 6300GE/LE = .XXXXX, 7300GE/LE = X.XXXX, 8300GE/LE = XX.XXX (lbs),
6300GM/LM = .XXXXX, 7300GM/LM = X.XXXX, 8300GM/LM = XX.XXX (kg)
Note: Low bytes only, combine with address 40001 for total odorant injected.
40003...................... High bytes for Accumulated flow, combine with address 40004 for total.
40004...................... 6300GE = .XXXXX, 7300GE = X.XXXX, 8300GE = XX.XXX (MMCF/hr),
6300GM = X.XXX, 7300GM = XX.XXX, 8300GM = XXX.XX (M3/sec) 6300LE = XXX.XX,
7300LE = XXXX.X, 8300LE = XXXXX (gallons), 6300LM = XXX.XX, 7300LM = XXXX.X,
8300LM = XXXXX (liters), 6300/7300/8300LE (PPMV mode) = XXXXX (gallons),
6300/7300/8300LM (PPMV mode) = XXXXX (liters)
Note: Low bytes only, combine with address 40003 for total accumulated flow.
40015...................... High bytes only, combine with address 40016 for total odorant injected.
40016...................... 6300 = .XXXX, 7300 = X.XXX, 8300 = XX.XX (lbs/kg)
Note: Low bytes only, combine with address 40015 for total odorant injected.
40017...................... Model number format: 63XX = 6300, 73XX = 7300, 83XX = 8300. XX= 11= GE,
XX=12=GM, XX=21=LE, XX=22=LM. Example: 6311 = 6300 Gas English,
7322 = 7300 Liquid Metric
40019...................... 6300 = XX.XXX, 7300 = XXX.XX, 8300 = XXXX.X (cc)
Parameter functions
The result data functions available via Modbus are listed below. The registers are accessed using Modbus
functions 3, 6, and 16.
Note: The system must be stopped in order for any parameter changes to be accepted. An exception response will be returned if a parameter change query is issued while the system is running. Once the parameter changes have been made, use coil 00009 to save the updated parameters before restarting the system.
Address
Access
Description
40101............ Read Only................ Current Date (Day of Month / Month) (01-31 / 01-12) – BCD
40102............ Read Only................ Current Date (Century / Year) (0000-9999) – BCD
40103............ Read Only................ Current Time (Seconds / Minutes) (00-59 / 00-59) – BCD
40104............ Read Only................ Current Time (Hours / Day of Week) (00-23/01-07) – BCD
40105............ Read/Write............... Injection Rate - Unsigned Integer *See formatting info.
40106............ Read/Write............... Pump Displacement (cc/Stroke) – Unsigned Integer *See formatting info.
40107............. Read/Write............... Odorant Density – Unsigned Integer X.XX (GE/LE = lbs/gal, GM/LM = g/cc)
40108............ Read/Write............... Proportional to Time Stroke Rate X.XX (minutes) – Unsigned Integer
40109............ Read/Write............... Maximum Gas Flow – Unsigned Integer *See formatting info.
40110............. Read/Write............... Low Flow Shutoff (xx.x of Max Gas Flow) – Unsigned Integer
40111............. Read/Write............... Flow No Signal (xx.x of Max Gas Flow) – Unsigned Integer
40112............. Read/Write............... Maximum time per stroke (xxx minutes/stroke) – Unsigned Integer
40113............. Read/Write............... Odorant Output (lbs/pulse) – Unsigned Integer *See formatting info.
40114............. Read/Write............... Pulses per Second (xx Pulses/Seconds) – Unsigned Integer
40115............. Read/Write............... Pulses per Minute / Pulses per Gallon (xx Pulses/Minute - Gas,
xx Pulses/Gal– Liquid PPMV) – Unsigned Integer
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver. 08-2018
Page 111
Appendix B:
N-300 Modbus Specifications
Parameter functions, Continued
40116............. Read/Write............... Odorant Tank Level High (xx %) – Unsigned Integer
40117............. Read/Write............... Odorant Tank Level Low (xx %) – Unsigned Integer
40118............. Read/Write............... Expansion Tank Pressure High (xx.x psi / x.xxx bar) – Unsigned Integer
40119............. Read/Write............... Expansion Tank Pressure Low (xx.x psi / x.xxx bar) – Unsigned Integer
40120............ Read/Write............... Odorant Inlet Pressure High (xx.x psi / x.xxx bar) – Unsigned Integer
40121............ Read/Write............... Odorant Inlet Pressure Low (xx.x psi / x.xxx bar) – Unsigned Integer
* Model Specific Formatting Information for Parameter functions
Address 40105:
GE = X.XX (lbs/MMCF)
GM = XXX.X (mg/m3)
LE = X.XX (lbs/10K gal)
LM = XXX.X (mg/liter)
Address 40106: 6300 = X.XXXX, 7300 = X.XXX, 8300 = XX.XX (cc/stroke)
Address 40109: 6300GE = X.XXXX, 7300/8300GE = XX.XXX (MMCF/hr)
6300GM = XX.XXX, 7300/8300GM = XXX.XX (m3/sec)
6300LE = XXXX.X, 7300/8300LE = XXXXX (gal/min)
6300LM = XXXX.X, 7300/8300LM = XXXXX (liter/min)
Address 40113:
6300 = X.XXXX, 7300 = X.XXX, 8300 = X.XX (English = lbs/pulse, Metric = kg/
pulse)
Exception Responses
Exception responses are a means for the Slave device to indicate to the Master device that a query received
could not be acted upon for a particular reason. Below is a listing of Exception codes.
Exception Code Name/Description
1.............................. Illegal Function: Function received in the query is not supported by the slave
2.............................. Illegal Data Address: Data address received in the query is not supported by the slave
3.............................. Illegal Data Value: Value contained in the query data field is not supported by the slave
4.............................. Slave Device Failure: An unrecoverable error occurred while performing this action
5.............................. Acknowledge: Query being processed but needs some time to complete
6.............................. Slave device busy: Slave cannot process an incoming query at this time
7.............................. Negative Acknowledge: Slave cannot perform the program function received
8 ............................. Memory parity error: A memory parity error occurred in the slave read attempt
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 112
NJEX 7300G ver.08-2018
Appendix C:
Response Forms
For the Record
To assit in trouble shooting, if required, please record
the following information as the NJEX 7300G is intitalized for the first time.
Parameters
• Serial number: ______________________________
• N-300G version (x.xx): ________________________
• Manufacturing date: _ ________________________
• Date of Start up: _____________________________
• Technician’s Name:_ _________________________
• Injection Rate: ______________________________
• Pump Displacement: _________________________
• Odorant Density: ____________________________
• Max Gas Flow: ______________________________
• Low Flow Shutoff: _ __________________________
• Flow (no signal): _ ___________________________
• Max Time/Stroke: ____________________________
• Odorant Output: _____________________________
Location
Run Mode
Basic information on the NJEX-7300G
• Site ID: ____________________________________ Select One
• Startup Technician: _ _________________________ ____Proportional-to-Time
• Site Telephone: _ ____________________________ _ ___Proportional-to-Flow
Conditions
• Pipeline Pressure: ___________________________
• Expansion TankPressure: _ ____________________
25 psi (1.72 Bar) expansion tank pressure is required.
If Proportional to-Flow, select one
_ __ Analog-Linear
_ __ Analog-Non-Linear
_ __ Pulses-per-Second
_ __ Pulses-per-Minute
• Bulk Tank: _ ________________________________
30-35 psi (2.07-2.41 Bar) bulk tank pressure range is required.
• Supply Actuation Pressure: ____________________
75 psi (5.17 Bar) supply actuation pressure is required.
• Pump Actuation Pressure: _____________________
Refer to System Schematic Illustration, Table 1, page 10 for
required pressures.
• Gas Flow Rate: _ ____________________________
Record in MMCF/hr or m3/sec.
• Bulk Odorant Storage Level: ___________________
• Ambient Temp Range: ________________________
• Pump Stroke Volume: _ _______________________
Record in cc/stroke
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G 08-2018
Page 113
NJEX TROUBLE SHOOTING FORM
ReturnTo:
F: 281.362.6500
Em: [email protected]
NJEX-7300G (serial number/N-300G version x.xx/mfg. date):
Date: Your Name:
LOCATION:
Site ID:
Attending Technicicans:
Telephone:
CONDITIONS:
Pipeline Pressure:
Expansion Tank (25 psi) (1.72 Bar):
Bulk Tank (30-35 psi) (2.07-2.41 Bar): cc/stroke:
Supply Actuation (75 psi) (5.17 Bar):
Pump Actuation (See Flow Chart for pressure): meter level:
Gas Flow Rate (MMCF/hr) (m3/sec.):
Bulk Odorant Storage Level: flow input:
Ambient Temp Range:
Date of Last Problem (mm/yr):
battery VDC:
PARAMETERS:
Injection Rate:
Pump Displacement: Proportional-To-Time Proportional-To-Flow
Odorant Density: Analog
Max Gas Flow: Linear
Low Flow Shutoff: Non-linear
Flow (no signal): Pulses
Max Time/Stroke: PPS
Odorant Output:
PPM
ALARMS:
Pump
Verometer
Signal
Overpumping Slow Fill Odorant Inlet Cable Low Flow
Underpumping No Fill Odorant Inlet Low Over Flow
Pump Failure Vmtr-Cable Odorant Inlet High Loss of Signal
FLValve-Fail XTank Cable
Tank Leakage
XTank Low Battery
Low Level XTank High Low Battery
High Level
PUMP PROBLEMS ONLY:
The correct hydraulic fluid level should be even with the “Oil Level Indication” located aproximatelty1/2 way
down in the oil reservoir.
CHECK ONE:
___ level is fine and moves up and down with each stroke
level is low but still moves fine
level does not move
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 114
Appendix D:
Documents
Serial Number
xxxxx
N-300 Controller Display
Diagram, Figure 213
Model Type
7300G
Verometer Calibrate
xx.xxx calicrate cc
Yes
Pre-Config
No
N-300G Ver x.xx
-- NJEX --
pmp bat vmtr sig tnk
PropFlow (Time)
Idle
*Strt *Dsp *Set
pmp bat vmtr sig tnk
Set Selection
*Par
*Cal
*Esc
pmp bat vmtr sig tnk
Strokes Signaled
*Reset
xxxxxxxx
pmp bat vmtr sig tnk
Meter Level xxx%
pmp bat vmtr sig tnk
Reset Strokes?
*No *Yes
pmp bat vmtr sig tnk
Proportional To ?
*Flow
*Time
*Esc
pmp bat vmtr sig tnk
Start Pump?
*Yes
*No
*Esc
PMP bat vmtr sig tnk
xx.xxx cc/stroke*
Pump Displacement
Alarm
pmp bat vmtr sig tnk
Time/Stroke Calculated
Exceeds minimum
Fill Verometer?
*No
*Yes
pmp bat vmtr sig tnk
Prop Flow/Time x:xx:xx
*Stop *Dsp
*Set
pmp bat VMTR sig tnk
Meter Level
xxx%
*Fill
pmp bat vmtr sig tnk
Expansion Tank
xx.x psi (Bar)
pmp bat vmtr sig tnk
Stop Pump
*No *Yes
pmp bat vmtr sig tnk
Set Parameters
*Flow *Time
*Esc
pmp bat vmtr sig tnk
Odorant Injected
*Reset
xx.xxxxlbs(kg)
Alarm
pmp bat vmtr sig tnk
Reset lbs(kg) Injected?
*No *Yes
pmp bat vmtr sig tnk
Proportional To Flow
* Set *Alarm * Esc
over pump
under pump
pump failure
Vmtr-Cable
No Fill
Slow Fill
Fill Valve
OdorInlet-Cable
OdorInlet Lo
OdorInlet Hi
XTank-Cable
XTank Low
XTank H
Leakage
pmp bat vmtr SIG tnk
Flow Input xx.x%
Linear
Non Linear
Pulse PPS/PPM
Non-Alarms
Over Fill
Fill rate
Proportional To Time
pmp bat vmtr sig tnk
Max Gas Flow
xx.xxx MMCF/(m3/sec)
Alarm
Loss of Signal
(Analog input
only)
OverFlow>125%
Non Alarm
No Flow
Low Flo Shtoff
Overflow<125%
pmp bat vmtr sig tnk
Alarm Switch Test
OFF/Alarm Relay Closed/
(ON/Alarm Relay Open)
pmp bat vmtr sig tnk
Set Time/Stroke
xx.xx Minutes
Low Battery
pmp BAT vmtr sig tnk
Battery Alarm
Simulate
pmp bat vmtr sig tnk
Verometer Alarm
Disabled/Enabled
pmp bat vmtr sig tnk
Tank Alarm
Disabled/Enabled
pmp bat vmtr sig tnk
Flow (no signal)
xx.xx% max gas flow
OverFlow>125%
pmp bat vmtr SIG tnk
Signal Alarm
Simulate
OverFlow>110%
pmp bat vmtr sig tnk
Verometer Alarm
Simulate
pmp bat vmtr sig tnk
Odorant Output
x.xx lb/pulse (kg/pulse)
pmp bat vmtr sig tnk
Odorant Tank
xx=Low (%) xx=High
Odorant Temp xx C
12:00 04-12-Wed-2000
pmp bat vmtr sig tnk
Expansion Tank
xx=Low (psi) xx=High
pmp bat vmtr sig tnk
Pulse Input
*PPM
*Esc
pmp bat vmtr sig tnk
Zero Adjustment
*Read 1.0 VDC *Esc
pmp bat vmtr sig tnk
Span Adjustment
xxx Pulses/(Min)(Sec) *Esc
pmp bat vmtr sig tnk
Zero Adjustment
Accept/ERROR x.x V *Esc
Over Pump
PMP bat vmtr sig tnk
Pump Alarm
Simulate
pmp bat vmtr sig tnk
Battery Alarm
Simulate
Under Pump
PMP bat vmtr sig tnk
Pump Alarm
Simulate
pmp bat vmtr sig tnk
Zero Adjustment
Read 1.0 VDC
*Esc
pmp bat vmtr sig tnk
Span Adjustment
*Read 5.0 VDC
*Esc
Pump Failure
PMP bat vmtr sig tnk
Pump Alarm
Simulate
pmp bat vmtr sig tnk
Zero Adjustment
Accept/ERROR x.x V *Esc
pmp bat vmtr sig tnk
Span Adjustment
Accept/ERROR x.x V *Esc
pmp bat vmtr sig tnk
Linear/Non-Linear Input
*Zero *Span
*Esc
pmp bat vmtr sig tnk
Calibrate Pressure
*XTank *Odor
*Esc
*PPS
pmp bat vmtr sig tnk
Pump Alarm
Simulate
Vmtr-Cable
pmp bat VMTR sig tnk
Verometer Alarm
Simulate
pmp bat vmtr sig tnk
Verometer Alarm
Simulate
pmp bat vmtr sig tnk
Max Time/Stroke
xxx minutes/stroke
Low Level
High Level
pmp bat vmtr sig tnk
Analog Input
*Lin *NLin
*Esc
pmp bat vmtr sig tnk
Signal Alarm
Disabled/Enabled
pmp bat vmtr sig tnk
Low Flow Shut Off
xx.x% max gas flow
low battery
pmp bat vmtr sig tnk
Switch/Simulation
*Sw
*Sim *Esc
pmp bat vmtr sig tnk
Battery Alarm
Disabled/Enabled
pmp bat vmtr sig tnk
Calibration
*Flow *Pres
*Esc
pmp bat vmtr sig tnk
Flow Input Type
*Ang *Pulse
*Esc
pmp bat vmtr sig tnk
Alarm Out Status
*Set
*Test *Esc
pmp bat vmtr sig tnk
Pump Alarm
Disabled/Enabled
pmp bat vmtr sig tnk
Odorant Density
x.xxx lbs/gallon (g/cc)
Alarm
pmp bat vmtr sig TNK
pmp bat vmtr sig tnk
Proportional To Time
* Set *Alarm * Esc
pmp bat vmtr sig tnk
Pump Displacement
x.xxx cc/stroke
Alarm
Alarm
pmp bat vmtr sig tnk
Set Date and Time
00:00 06-01-Thu-2000
pmp bat vmtr sig tnk
Injection Rate
x.xxx lbs/MMCF(mg/m3)
pmp bat vmtr sig tnk
OdorInlet Inlet
xx.x psig (Bar)
pmp BAT vmtr sig tnk
Battery xx.x VDC
pmp bat vmtr sig tnk
Calibration Set
*Inputs
*Esc
*Clk
No-Fill
pmp bat VMTR sig tnk
Verometer Alarm
Simulate
pmp bat vmtr sig tnk
Signal Alarm
Simulate
Slow Fill
pmp bat VMTR sig tnk
Verometer Alarm
Simulate
pmp bat vmtr sig tnk
Tank Alarm
Simulate
Loss of Signal
pmp bat vmtr SIG tnk
Signal Alarm
Simulate
Odor Tank Low
pmp bat vmtr sig TNK
Tank Alarm
Simulate
No Flow
pmp bat vmtr sig tnk
Verometer Alarm
Simulate
OdorTank Hi
pmp bat vmtr sig TNK
Tank Alarm
Simulate
Low-Flo Shtoff
pmp bat vmtr sig tnk
Verometer Alarm
Simulate
Leakage
pmp bat VMTR sig tnk
Verometer Alarm
Simulate
Flvalv-Fail
pmp bat VMTR sig tnk
Verometer Alarm
Simulate
Overfill
pmp bat VMTR sig tnk
Verometer Alarm
Simulate
Fillrate
pmp bat VMTR sig tnk
Verometer Alarm
Simulate
pmp bat vmtr sig tnk
Odorant Inlet
xx=Low (psi)(Bar) xx=High
OdorInlet-Cabl
pmp bat VMTR sig tnk
Verometer Alarm
Simulate
pmp bat vmtr sig tnk
Alarm to Relay Delay
xxx minutes
OdorInlet-Lo
pmp bat VMTR sig tnk
Verometer Alarm
Simulate
pmp bat vmtr sig tnk
Alarm to Callout Delay
xxx minutes
OdodInlet-Hi
pmp bat VMTR sig tnk
Verometer Alarm
Simulate
pmp bat vmtr sig tnk
MODBUS Address
xxx = Device Address
XTank-Cable
pmp bat VMTR sig tnk
Verometer Alarm
Simulate
pmp bat vmtr sig tnk
MODBUS Parameters
9600,N,RTU,Comm=..
XTank-Lo
pmp bat VMTR sig tnk
Verometer Alarm
Simulate
XTank-Hi
pmp bat VMTR sig tnk
Verometer Alarm
Simulate
Y Z
S y s t e m s
NJEX 7300G ver.08-2018
M i l t o n
R o y
•
2 0 1
I v y l a n d
R o a d
•
I v y l a n d ,
P e n n s y l v a n i a
•
U S A
•
1 8 9 7 4
•
P :
2 8 1 . 3 6 2 . 6 5 0 0
•
w w w . y z s y s t e m s . c o m
Page 115
Appendix D:
Documents
Wiring Control Document,
1E-0345.dwg ()
Figure 214
2 of 3
Y Z
Page 116
S y s t e m s
M i l t o n
R o y
•
2 0 1
I v y l a n d
R o a d
•
I v y l a n d ,
P e n n s y l v a n i a
•
U S A
•
1 8 9 7 4
•
P :
2 8 1 . 3 6 2 . 6 5 0 0
•
w w w . y z s y s t e m s . c o m
NJEX 7300G ver. 08-2018
Appendix E:
N-300 ATEX Connections
ATEX System Connections
Required field connections to place the 7300G into
operation are as follows:
1. Connect your I.S. Power Supply to the yellow
cable connection coming from the bottom of the
N-300 controller, and exiting the rear of your system enclosure, refer to the Wiring Control Document on page 116 in Appendix D.
2. Connect the flow signal device to the termination
block located in the system control enclosure,
figure 8, refer to the Wiring Control Document on
page 116 in Appendix D.
2a. If used, connect the optional Inhibit Input signal to
the termination block located in the system control
enclosure, figure 8, refer to the Wiring Control
Document on page 116 in Appendix D.
2b. If used, connect the RS-485 communication wiring as required to the termination block located in
the system control enclosure, figure 8, refer to the
Wiring Control Document on page 116 in Appendix
D.
I.S. Power Supply
Connection
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
NJEX 7300G ver.08-2018
Page 117
Appendix E:
N-300 ATEX Connections
Y Z S y s t e m s M i l t o n R o y • 2 0 1 I v y l a n d R o a d • I v y l a n d , P e n n s y l v a n i a • U S A • 1 8 9 7 4 • P : 2 8 1 . 3 6 2 . 6 5 0 0 • w w w. y z s y s t e m s . c o m
Page 118
NJEX 7300G ver.08-2018
201 Ivyland Road
Ivyland, PA 18974
800.344.5399
P: 281.362.6500
F: 281.362.6513
[email protected]
www.yzsystems.com