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ProtEX-MAX PD8-6060 Explosion-Proof
Dual-Input Meter Instruction Manual
USB Install
Dual-Input
•
Two (2) 0-20 mA, 4-20 mA, 0-5 V, 1-5 V, and ±10 V Inputs
•
Displays Two Process Inputs Simultaneously
•
Math Functions Capabilities
•
Multi-Pump Alternation Control
•
Signal Input Conditioning for Flow & Round Horizontal Tank
•
Programmable Displays & Function Keys
•
32-Point, Square Root, or Exponential Linearization
•
Modern, Sleek and Practical Enclosure
•
Display Mountable at 0°, 90°, 180°, & 270° Degrees
•
Explosion-Proof, IP68, NEMA 4X Enclosure
•
SafeTouch
®
Through-Glass Button Programming
•
Flanges for Wall or Pipe Mounting
•
Superluminous Sunlight Readable Display
•
Free USB Programming Software & Cable
•
Input Power Options Include 85-265 VAC or 12-24 VDC
•
Isolated 24 VDC @ 25 mA Transmitter Power Supply
•
Modbus
®
RTU Communication Protocol Standard
PRECISION DIGITAL CORPORATION
233 South Street
• Hopkinton MA 01748 USA
Tel (800) 343-1001
• Fax (508) 655-8990
www.predig.com
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Disclaimer
The information contained in this document is subject to change without notice.
Precision Digital makes no representations or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability or fitness for a particular purpose.
!
CAUTION: Read complete
instructions prior to installation and operation of the meter.
WARNING
:
Risk of electric shock or personal injury.
Warning!
•
This product is not recommended for life support applications or applications where malfunctioning could result in personal injury or property loss. Anyone using this product for such applications does so at his/her own risk. Precision Digital Corporation shall not be held liable for damages resulting from such improper use.
•
Failure to follow installation guidelines could result in death or serious injury. Make sure only qualified personnel perform the installation.
•
Never remove the instrument cover in explosive environments when the circuit is live.
•
Cover must be fully engaged to meet flameproof/explosion-proof requirements.
•
Information in this manual supersedes all enclosure, compliance, and agency approval information included in additional product manuals included with this product.
Limited Warranty
Precision Digital Corporation warrants this product against defects in material or workmanship for the specified period under “Specifications” from the date of shipment from the factory. Precision Digital’s liability under this limited warranty shall not exceed the purchase value, repair, or replacement of the defective unit.
Registered Trademarks
MeterView
®
Pro is a registered trademark of Precision Digital Corporation. Modbus
®
is a
Registered Trademark of Schneider Automation Inc. All other trademarks mentioned in this document are the property of their respective owners.
© 2018 Precision Digital Corporation. All rights reserved.
www.predig.com
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ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Table of Contents
Table of Contents ----------------------------------------- 3
Table of Figures ------------------------------------------- 4
Introduction ------------------------------------------------- 4
Ordering Information ------------------------------------ 5
Specifications ---------------------------------------------- 5
General ------------------------------------------------------------ 5
Dual Process Input -------------------------------------------- 6
Relays ------------------------------------------------------------- 7
Isolated 4-20 mA Transmitter Output ------------------- 7
Serial Communications -------------------------------------- 8
Digital Inputs & Outputs ------------------------------------- 8
MeterView Pro -------------------------------------------------- 8
Product Ratings and Approvals; ------------------------- 9
Compliance Information ------------------------------ 10
Safety ------------------------------------------------------------ 10
Electromagnetic Compatibility -------------------------- 10
Safety Information -------------------------------------- 11
Installation ------------------------------------------------ 11
Unpacking ------------------------------------------------------ 11
Pre-Installed Conduit/Stopping Plug ------------------ 12
Mounting ------------------------------------------------------- 12
Cover Jam Screw -------------------------------------------- 12
Transmitter Supply Voltage Selection (P+, P-) ---- 12
Connections --------------------------------------------------- 13
Required & Factory Wired Connection --------------- 13
Connectors Labeling -------------------------------------- 14
Power Connections --------------------------------------- 14
Signal Connections --------------------------------------- 15
Serial Communications Connections ----------------- 16
Three Wire Connections ----------------------------- 16
Serial Adapters --------------------------- 18
Relay Connections ---------------------------------------- 19
Switching Inductive Loads ------------------------------- 19
F4 Digital Input Connections ---------------------------- 20
4-20 mA Output Connections --------------------------- 20
Analog Output Transmitter Power Supply ----------- 20
Interlock Relay Feature ---------------------------------- 20
Digital I/O Connections ----------------------------------- 21
External Switch Contacts -------------------------------- 21
Setup and Programming------------------------------ 22
Overview -------------------------------------------------------- 22
Buttons ---------------------------------------- 22
Front Buttons and Status LED Indicators ----------- 23
Pro Software --------------------------------- 24
MeterView Pro Installation ------------------------------ 24
Display Functions & Messages ------------------------- 25
Main Menu ----------------------------------------------------- 27
Setting Numeric Values ----------------------------------- 27
) ----------------------------- 28
Setting the Decimal Point ( dEc pt ) ------------------- 29
Multi-Point Linearization ( Linear ) ----------------- 30
Pro Software ---------------------------- 30
Scaling the Meter without a Signal Source ------ 30
Scaling the Meter for Channel A ( SCal-A ) ------ 30
Scaling the Meter for Channel B (
) ------------------------------- 31
Calibrating the Meter with External Source ----- 31
Calibrating the Meter for Channel A (
Calibrating the Meter for Channel B ( CAL-B ) --- 31
Setting the Display Parameter & Intensity ( dsplay
----------------------------------------------------------------- 32
Setting the Input Units or Custom Tags ( units
Setting the Relay Assignment ( asSign
Setting the Relay Action --------------------------------- 35
Programming Set and Reset Points ------------------ 35
Setting Fail-Safe Operation ----------------------------- 35
Programming Time Delay ------------------------------- 35
Relay Action for Loss of 4-20 mA Input (Loop Break)
----------------------------------------------------------------- 35
Relay and Alarm Operation Diagrams ---------------- 36
High Alarm Operation (Set > Reset) ------------------ 36
Low Alarm Operation (Set < Reset) ------------------ 36
High Alarm with Fail-Safe Operation (Set > Reset)
----------------------------------------------------------------- 36
Low Alarm with Fail-Safe Operation (Set < Reset) 36
Pump Alternation Control Operation ------------------ 37
Relay Sampling Operation ------------------------------ 37
Signal Loss or Loop Break Relay Operation ------- 38
Time Delay Operation ------------------------------------ 38
Relay Operation Details ----------------------------------- 39
Overview ----------------------------------------------------- 39
Relays Auto Initialization -------------------------------- 39
Fail-Safe Operation --------------------------------------- 39
Front Panel LEDs ----------------------------------------- 40
Latching and Non-Latching Relay Operation ------- 40
) ----------------------------- 40
Non-Latching Relay ( A-man ) ------------------------- 40
) ---------------------------------- 40
Latching Relay ( Lt-Clr ) --------------------------------- 41
Acknowledging Relays ----------------------------------- 41
Pump Alternation Control Applications ( Altern ) -- 42
Setting Up the Interlock Relay (Force On) Feature 43
Interlock Relay Operation Example --------------- 43
Scaling the 4-20 mA Analog Output (
) ----------------------------------------- 44
) ------------------------------------- 44
Protecting or Locking the Meter ----------------------- 45
Making Changes to a Password Protected Meter - 45
Disabling Password Protection ------------------------ 45
Advanced Features Menu -------------------------------- 46
Advanced Features Menu & Display Messages --- 46
Noise Filter ( filter ) ------------------------------------- 48
Noise Filter Bypass (bypass) --------------------------- 48
Rounding Feature ( round ) ------------------------------ 48
Modbus RTU Serial Communications ( serial
Serial Communications Overview --------------------- 49
) ------------------------------------ 50
Signal Input Conditioning ( Functn ) ------------------- 50
Math Function ( math ) ---------------------------------- 52
Math Constants ( Const ) --------------------------------- 52
3
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
) ------------------------------- 52
Analog Output Programming ( AoutPr ) --------------- 53
Programmable Function Keys User Menu ( user
) ---------------------------------------- 55
Internal Calibration ( ICAL ) ------------------------------- 55
Meter Operation ----------------------------------------- 57
Front Panel Buttons Operation ------------------------- 57
Buttons ---------------------------------------- 57
F4 Operation -------------------------------------------------- 58
Maximum/Minimum Readings --------------------------- 58
Troubleshooting ----------------------------------------- 59
) ---------------------------------- 59
Determining Software Version ------------------------- 59
Reset Meter to Factory Defaults ------------------------ 59
Factory Defaults & User Settings ---------------------- 60
Troubleshooting Tips -------------------------------------- 62
Service ------------------------------------------------------ 63
Mounting Dimensions --------------------------------- 63
EU Declaration of Conformity ----------------------- 65
Table of Figures
Figure 1. Transmitter Supply Voltage Selection ....... 12
Figure 2: Integrated ProVu Required Connections .. 13
Figure 3. Connector Labeling for Fully Loaded
PD6060 ................................................................. 14
Figure 4. Power Connections ..................................... 14
Figure 5. Transmitters Powered by Internal Supply . 15
Figure 6. Transmitter Powered by Ext. Supply or Self-
Powered ............................................................... 15
Figure 7. Voltage Input Connections ......................... 15
Figure 8: ProtEX-MAX Connections to a Serial
Converter ............................................................. 16
Figure 9. Three-Wire RS485 Connection ................... 16
Figure 10: RS-485 Wiring ............................................ 17
Figure 11: RS-485 Two-Wire Multi-Drop Wiring ........ 18
Figure 12. Relay Connections ..................................... 19
Figure 13. AC and DC Loads Protection .................... 19
Figure 14. Low Voltage DC Loads Protection ........... 19
Figure 15. F4 Digital Input Connections .................... 20
Figure 16. 4-20 mA Output Connections .................... 20
Figure 17. Interlock Connections ............................... 20
Figure 18: Digital I/O Connections ............................. 21
Figure 19. Acknowledge Relays w/Function Key or
Digital Input .......................................................... 41
Figure 20: General Four-Wire Network Connection .. 49
Figure 21: General Two-Wire Network Connection... 49
Figure 22: Enclosure Dimensions
Figure 23: Enclosure Dimensions
Section View ......................................................... 63
Introduction
The ProtEX-MAX PD8-6060 offers all the functionality of the ProVu PD6060 as a fully FM, CSA,
ATEX, and IECEx approved explosion-proof product. It accepts two inputs of either a process current (4-20 mA) or process voltage (0-5V, 1-5V, etc.) signal. It displays these signals on a dual-line, 6-digit SunBright® sunlight readable display. Its superluminous LED digits make it easily readable in smoke, dust, fog, and, with the optional SunBright® display, even direct sunlight. The meter can be customized such that these two inputs are displayed in a variety of ways, including both at the same time with tags or the result of math functions performed on one or both of the inputs.
The PD8-6060 includes a 24 VDC power supply to drive the transmitter and can be equipped with up to four internal relays and a 4-20 mA analog output. It can be programmed and operated without opening the housing by using the built-in SafeTouch® through-glass buttons or the
RS485 serial communication port with free Modbus® protocol.
Various math functions may be applied to the inputs including addition, difference, absolute difference, average, weighted average, multiplication, division, minimum, maximum, draw, ratio, and concentration. This is in addition to the signal input conditioning functions (linear, square root, programmable exponent, or round horizontal tank calculations). The displays, relays, and the analog output may be assigned to input channels A or B, or math result channel C.
The basic model includes an isolated 24 VDC transmitter power supply that can be used to power the input transmitters or other devices. An additional isolated 24 VDC power supply is included with the 4-20 mA output option. A digital input is standard. A fully loaded PD6060 meter has the following: four SPDT relays, 4-20 mA output, and two 24 VDC power supplies.
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ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Ordering Information
SunBright Display Models
85-265 VAC Model 12-24 VDC Model Options Installed
PD8-6060-6H0 PD8-6060-7H0 No options
PD8-6060-6H7 PD8-6060-7H7 4 relays & 4-20 mA output
WARNING
- Cancer and Reproductive Harm -
www.P65Warnings.ca.gov
Accessories
Model Description
PDA1232
PDA1485
PDA7485-I
PDA8232-N
PDA8485-I
PDX6901
RS-232 serial adapter
RS-485 serial adapter
RS-232 to RS-422/485 isolated converter
USB to RS-232 non-isolated converter
USB to RS-422/485 isolated converter
Suppressor (snubber): 0.01 µF/470
, 250 VAC
Specifications
Except where noted all specifications apply to operation at +25°C.
General
Display
Display
Intensity
Display
Update Rate
Line 1: 0.60" (15 mm) high, red LEDs
Line 2: 0.46" (12 mm) high, red LEDs
6 digits each (-99999 to 999999), with lead zero blanking
Eight user selectable intensity levels
5/second (200 ms)
Password
Non-Volatile
Memory
Three programmable passwords restrict modification of programmed settings.
Pass 1: Allows use of function keys and digital inputs
Pass 2: Allows use of function keys, digital inputs and editing set/reset points
Pass 3: Restricts all programming, function keys, and digital inputs.
All programmed settings are stored in nonvolatile memory for a minimum of ten years if power is lost.
Overrange
Display flashes
999999
Underrange
Display flashes -99999
Power
Options
85-265 VAC 50/60 Hz, 90-265 VDC, 20 W max or 12-24 VDC
10%, 15 W max
Powered over USB for configuration only.
Display
Assignment
Display lines 1 & 2 may be assigned to process values for Channels A (Ch-A), B
(Ch-B), or C (Ch-C), toggle between (Ch-A
& Ch-B, Ch-A & Ch-C, Ch-B & Ch-C, and
Ch-A, Ch-B, & Ch-C), toggle between
Channel & units, show channel gross value
(no tare) or toggle net (tare) and gross values, show relay set points, max & min values, or Modbus input. Line 2 may also be set to show engineering units or be off, with no display.
Fuse
Isolated
Transmitter
Power Supply
Normal Mode
Rejection
Required external fuse: UL Recognized, 5
A max, slow blow; up to 6 meters may share one 5 A fuse
Terminals P+ & P-: 24 VDC
10%.
Selectable for 24, 10, or 5 VDC supply (internal jumper J4). All models transmitter supply rated
@ 25 mA max.
Greater than 60 dB at 50/60 Hz
Programming
Methods
Four front panel buttons, digital inputs, PC and MeterView Pro software, or Modbus registers.
Isolation
4 kV input/output-to-power line
500 V input-to-output or output-to-P+ supply
Noise Filter
Programmable from 2 to 199 (0 will disable filter)
Overvoltage
Category
Installation Overvoltage Category II:
Local level with smaller transient overvoltages than Installation Overvoltage
Category III.
Filter Bypass
Programmable from 0.1 to 99.9% of calibrated span
Recalibration
All ranges are calibrated at the factory.
Recalibration is recommended at least every 12 months.
Environmental
T6 Class operating temperature range Ta =
-40 to 60°C
T5 Class operating temperature range Ta =
-40 to 65°C
Max/Min
Display
Max/min readings reached by the process are stored until reset by the user or until power to the meter is cycled.
Max Power
Dissipation
Connections
Maximum power dissipation limited to 15.1
W.
Screw terminals accept 12 to 22 AWG wire
5
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Enclosure
Mounting
Tightening
Torque
Overall
Dimensions
Approximate
Shipping
Weight
Warranty
Explosion-proof die cast aluminum with glass window, corrosion resistant epoxy coating, color: blue.
NEMA 4X, 7, & 9, IP68.
Default conduit connections: Four ¾" NPT threaded conduit openings and two ¾"
NPT metal conduit plugs with 12 mm hex key fitting installed. Additional conduit opening configurations may be available; verify quantity and sizes on specific device labeling during installation.
Four slotted flanges for wall mounting or
NPS 1½" to 2½" or DN 40 to 65 mm pipe mounting. See Mounting Dimensions on page
63
.
Screw terminal connectors: 5 lb-in (0.56
Nm)
6.42" x 7.97" x 8.47" (W x H x D)
(163 mm x 202 mm x 215 mm)
16.0 lbs (7.26 kg)
3 years parts & labor
Dual Process Input
Two Inputs
Channels
Programmable
Constants
Two
non-isolated
inputs, each separately field selectable:
0-20, 4-20 mA,
10 V (0-5, 1-5, 0-10 V),
Modbus PV (Slave)
Channel A, Channel B, Channel C (Math channel)
Constant P (Adder): -99.999 to 999.999, default: 0.000
Constant F (Factor): 0.001 to 999.999, default: 1.000
Math Functions
Name
Addition
Difference
Absolute diff.
Average
Multiplication
Division
Max of A or B
Min of A or B
Draw
Weighted avg.
Ratio
Ratio 2
Function
(A+B+P)*F
(A-B+P)*F
((Abs(A-B))+P)*F
(((A+B)/2)+P)*F
((A*B)+P)*F
((A/B)+P)*F
((AB-Hi)+P)*F
((AB-Lo)+P)*F
((A/B)-1)*F
((B-A)*F)+A
(A/B)*F
((B-A)/A)+P)*F
Setting
Sunm diF diFAbS
AvG nmulti divide
Hi-Ab
Lo-Ab drAuw uw avg ratio ratio2
Concen
Concentration (A/(A+B))*F
Note: The F constant can be any value from 0.001 to 999.999.
If the value is less than 1, it will have the same effect as a divider. For example, the average could also be derived by using (A+B)*F, where F = 0.500.
Sequence of
Operations for
Input
Programming
1. Select Input for A and B
2. Set up the engineering units for A, B, and C
3. Set up decimal point for A, B, and C
4. Program A & B
5. Set up the displays for A, B, or C
6. Select the transfer function for A & B
(e.g. Linear)
7. Select Math function for Channel C
8. Program constants for Factor (F) and
Adder (P).
9. Program cutoff values for A and B
Accuracy
Temperature
Drift
±0.03% of calibrated span ±1 count, square root & programmable exponent accuracy range: 10-100% of calibrated span
0.005% of calibrated span/
C max from 0 to 65
C ambient,
0.01% of calibrated span/
C max from -40 to 0
C ambient
Signal Input
Conditioning
Linear, square root, programmable exponent, or round horizontal tank volume calculation
2 to 32 points for channel A and B
Multi-Point
Linearization
Programmable
Exponent
1.0001 to 2.9999
Low-Flow
Cutoff
0-999999 (0 disables cutoff function)
Decimal Point
Up to five decimal places or none: d.ddddd
, d.dddd
, d.ddd
, d.dd
, d.d
, or dddddd
6
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Calibration
Range
Input
Impedance
Input
Overload
F4 Digital Input
Contacts
F4 Digital Input
Logic Levels
HART
Transparency
Input
Range
Minimum Span
Input 1 & Input 2
4-20 mA 0.15 mA
10 V
0.01 V
An error message will appear if the input 1 and input 2 signals are too close together.
Voltage ranges: greater than 500 k
Current ranges: 50 - 100
(depending on resettable fuse impedance)
Current input protected by resettable fuse,
30 VDC max.
Fuse resets automatically after fault is removed.
3.3 VDC on contact. Connect normally open contacts across F4 to COM.
Logic High: 3 to 5 VDC
Logic Low: 0 to 1.25 VDC
Analog input will not interfere with existing
HART communications on the wired 4-20 mA signal
Relays
Rating
Noise
Suppression
Deadband
High or Low
Alarm
Relay
Operation
Time Delay
Fail-Safe
Operation
Auto
Initialization
4 SPDT (Form C) internal and/or 4 SPST
(Form A) external; rated 3 A @ 30 VDC and 125/250 VAC resistive load; 1/14 HP
( ≈ 50 W) @ 125/250 VAC for inductive loads
Noise suppression is recommended for each relay contact switching inductive
loads; see page 19 for details.
0-100% of span, user programmable
User may program any alarm for high or low trip point.
Unused alarm LEDs and relays may be disabled (turn off).
Automatic (non-latching)
Latching (requires manual acknowledge)
Sampling (based on time)
Pump alternation control (2 to 4 relays)
Off (disable unused relays and enable
Interlock feature)
Manual on/off control mode
0 to 999.9 seconds, on & off relay time delays
Programmable and independent for each relay
Programmable and independent for each relay.
Note: Relay coil is energized in non-alarm condition.
In case of power failure, relay will go to alarm state.
When power is applied to the meter, relays will reflect the state of the input to the meter.
Relay Reset
User selectable via front panel buttons, digital inputs, or PC
1. Automatic reset only (non-latching), when the input passes the reset point.
2. Automatic + manual reset at any time
(non-latching)
3. Manual reset only, at any time
(latching)
4. Manual reset only after alarm condition has cleared (L)
Note: Front panel button or digital input may be assigned to acknowledge relays programmed for manual reset.
Isolated 4-20 mA Transmitter Output
Output Source
Process channel A, B, or C, max or min for channel A, B, or highest or lowest max or min of A and B, set points 1-4, Modbus input, or manual control mode
Scaling Range
1.000 to 23.000 mA for any display range
Calibration
Analog Out
Programming
Accuracy
Temperature
Drift
Isolated
Transmitter
Power Supply
External Loop
Power Supply
Factory calibrated: 4.000 to 20.000 = 4-20 mA output
23.000 mA maximum for all parameters:
Overrange, underrange, max, min, and break
± 0.1% of span ± 0.004 mA
0.4 µA/
C max from 0 to 65
C ambient,
0.8 µA/
C max from -40 to 0
C ambient
Note: Analog output drift is separate from input drift.
Terminals I+ & R: 24 VDC
10%. May be used to power the 4-20 mA output or
other devices. Refer to Figure 3 on page
14 and Figure 16 on page 20. All models
@ 25 mA max.
35 VDC maximum
Output Loop
Resistance
Power supply Minimum Maximum
24 VDC
35 VDC
(external)
10
100
700
1200
7
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Serial Communications
Compatibility
EIA-485
Connectors
Removable screw terminal connector
Max Distance
3,937' (1,200 m) max
Status Indication
Separate LEDs for Power (P), Transmit
(TX), and Receive (RX)
Slave Id
1
– 247 (Meter address)
Baud Rate
300
– 19,200 bps
Transmit
Time Delay
Programmable between 0 and 199 ms
Data
Parity
8 bit (1 start bit, 1 or 2 stop bits)
Even, Odd, or None with 1 or 2 stop bits
0.01
– 2.54 second
Byte-To-Byte
Timeout
Turn Around
Delay
Less than 2 ms (fixed)
Note: Refer to the P
RO
V
U
®
Modbus Register Tables located at www.predig.com for details.
Digital Inputs & Outputs
Channels
4 digital inputs & 4 digital outputs per module
Digital Input
Logic High
Digital Input
Logic Low
3 to 5 VDC
0 to 1.25 VDC
Digital Output
Logic High
Digital Output
Logic Low
Source
Current
Sink
Current
3.1 to 3.3 VDC
0 to 0.4 VDC
10 mA maximum output current
1.5 mA minimum input current
+5 V
Terminal
Function
Assignment
To be used as pull-up for digital inputs only.
Connect normally open pushbuttons across
+5 V & DI 1-4.
WARNING
DO NOT use +5 V terminal (pin 1) to power external devices.
The on-board digital inputs (1-4) are designed to mimic the behavior of the front panel buttons (Menu, F1, F2, & F3).
If you wish to change their behavior, reassign F1-F3 to the desired function, then change the corresponding digital input to match.
MeterView Pro
System
Requirements
Microsoft
®
Windows
®
XP/Vista/7/8/10
Communications
USB 2.0 (Standard USB A to Micro USB
B)
Configuration
Configure device settings one at a time
8
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Product Ratings and Approvals;
FM
CSA
ATEX
IECEx
Enclosure: Type 4X; IP66
Class I, Division 1, Groups B, C, D
Class II, Division 1, Groups E, F, G
Class III, Division 1, T5/T6
Class I, Zone 1, AEx d, IIC Gb T5/T6
Zone 21, AEx tb IIIC T90°C; Ta -40°C to +65°C
T6 Ta = -40°C to +60°C; T5 Ta = -40°C to +65°C
Certificate Number: 3047283
Class I, Division 1, Groups B, C, D
Class II, Division 1, Groups E, F, G
Class III, Division 1
Class I Zone 1 Ex d IIC
Zone 21 Ex tb IIIC T90°C
-40°C < Tamb. < +60° C; Temperature Code T6
-40°C < Tamb. < +65° C; Temperature Code T5
Enclosure Type 4X & IP66
Certificate Number: 2531731
II 2 G D
Ex d IIC T* Gb
Ex tb IIIC T90°C Db IP68
Ta = -40°C to +*°C
*T6 = -40°C to +60°C
*T5 = -40°C to +65°C
Certificate number: Sira 12ATEX1182
Ex d IIC T* Gb
Ex tb IIIC T90°C Db IP68
Ta = -40°C to +*°C
*T6 = -40°C to +60°C
*T5 = -40°C to +65°C
Certificate Number: IECEx SIR 12.0073
Special Conditions for Safe Use:
Use suitably certified and dimensioned cable entry device and/or plug. The equipment shall be installed such that the supply cable is protected from mechanical damage. The cable shall not be subjected to tension or torque. If the cable is to be terminated within an explosive atmosphere, then appropriate protection of the free end of the cable shall be provided. Cable must be suitable for 90°C.
Year of Construction
This information is contained within the serial number with the first four digits representing the year and month in the YYMM format.
For European Community:
The ProtEX-MAX must be installed in accordance with the ATEX directive 94/9/EC, and the product certificate Sira 12ATEX1182.
9
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Compliance Information
Safety
UL & c-UL Listed
UL File Number
Front Panel
Low Voltage
Directive
USA & Canada
UL 508 Industrial Control Equipment
E160849
UL Type 4X, NEMA 4X, IP65; panel gasket provided
EN 61010-1:2010
Safety requirements for measurement, control, and laboratory use
Electromagnetic Compatibility
Emissions
EN 55022:2010
Class A ITE emissions requirements
Class A
Radiated
Emissions
AC Mains
Conducted
Emissions
Immunity
Class A
RFI - Amplitude
Modulated
EN 61326-1:2013
Measurement, control, and laboratory equipment
EN 61000-6-2:2005
EMC heavy industrial generic immunity standard
80 -1000 MHz 10 V/m 80% AM (1 kHz)
1.4 - 2.0 GHz 3 V/m 80% AM (1 kHz)
2.0 - 2.7 GHz 1 V/m 80% AM (1 kHz)
Electrical Fast
Transients
Electrostatic
Discharge
±2kV AC mains, ±1kV other
±4kV contact, ±8kV air
RFI - Conducted
10V, 0.15-80 MHz, 1kHz 80% AM
AC Surge
±2kV Common, ±1kV Differential
Surge
Power-Frequency
Magnetic Field
Voltage Dips
1KV (CM)
30 A/m 70%V for 0.5 period
40%V for 5 & 50 periods
70%V for 25 periods
Voltage
Interruptions
Note:
<5%V for 250 periods
Testing was conducted on PD6000 Series meters installed through the covers of grounded metal enclosures with cable shields grounded at the point of entry representing installations designed to optimize EMC performance.
Declaration of Conformity available at www.predig.com
10
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Safety Information
WARNINGS
•
Read complete instructions prior to installation and operation of the instrument.
•
Installation and service should be performed only by trained service personnel. Service requiring replacement of internal sub-components must be performed at the factory.
•
Disconnect from supply before opening enclosure. Keep cover tight while circuits are alive.
Conduit seals must be installed within 18" (450mm) of the enclosure or within 2" (50mm) for
Zone installations.
•
Verify that the operating atmosphere of the instrument is consistent with the appropriate hazardous locations certifications.
•
If the instrument is installed in a high voltage environment and a fault or installation error occurs, high voltage may be present on any lead
•
Read all product labels completely and follow all instructions and requirements listed on the labels for installation or service.
Installation
Install in accordance with applicable local and national regulations (e.g. NEC).
For Installation in USA:
The ProtEX-MAX must be installed in accordance with the National Electrical
Code (NEC) NFPA 70.
For Installation in Canada:
The ProtEX-MAX must be installed in accordance with the Canadian
Electrical Code CSA 22.1. All power supplies below 36 V and input circuits must be derived from a CSA
Approved Class 2 source.
For European Community:
The ProtEX-MAX must be installed in accordance with the ATEX directive
94/9/EC and the product certificate Sira 12ATEX1182.
Disconnect from supply before opening enclosure. Keep cover tight while circuits are alive. Conduit seals must be
WARNING
installed within 18" (450mm) of the enclosure or within 2"
(50mm) for Zone installations.
Wiring connectors are accessed by opening the enclosure. To access electrical connectors, remove the 2 captive screws and then remove the electronics module. Connectors are on the rear of the electronics module.
Unpacking
Remove the instrument from packing box. Inspect the packaging and contents for damage. Report damages, if any, to the carrier.
If any part is missing or the instrument malfunctions, please contact your supplier or the factory for assistance.
11
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Pre-Installed Conduit/Stopping Plug
The PD8-6000 is supplied with two pre-installed conduit plugs for installations that do not require the use of all conduit entries. The conduit/stopping plugs include an internal 12mm hexagonal socket recess for removal. The pre-installed plugs and their installation are included in the hazardous area approvals for the PD8 Series enclosure.
In hazardous areas, conduit and conduit/stopping plugs require the application of non-setting (solvent free) thread sealant. It is
WARNING
critical that all relevant hazardous area guidelines be followed for the installation or replacement of conduit or plugs.
Mounting
The ProtEX-MAX has four slotted mounting flanges that should be used for pipe mounting or wall mounting. Refer to
Mounting Dimensions
, page 63 for details.
Do not attempt to loosen or remove flange bolts
WARNING
while the instrument is in service.
Cover Jam Screw
The cover jam screw should be properly installed once the instrument has been wired and tested in a safe environment. The cover jam screw is intended to prevent the removal of the instrument cover in a flameproof environment without the use of tools. Using a M2 hex wrench, turn the screw clockwise until the screw contacts the aluminum enclosure. Turn the screw an additional 1/4 to 1/2 turn to secure the cover. Caution: Excess torque may damage the threads and/or wrench.
Transmitter Supply Voltage Selection (P+, P-)
All meters, including models equipped with the 12-24 VDC power option, are shipped from the factory configured to provide 24 VDC power for the transmitter or sensor.
If the transmitter requires 5 or 10 VDC excitation, the internal jumper J4 must be configured accordingly.
To access the voltage selection jumper:
1. Remove all the wiring connectors.
2. Unscrew the back cover.
3. Slide out the back cover by about 1 inch.
4. Configure the J4 jumper, located behind the input signal connector, for the desired excitation voltage as shown.
12
Figure 1. Transmitter Supply Voltage Selection
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Connections
WARNINGS
•
Static electricity can damage sensitive components.
•
Observe safe handling precautions for static-sensitive components.
•
Use proper grounding procedures/codes.
•
If the instrument is installed in a high voltage environment and a fault or installation error occurs, high voltage may be present on any lead or terminal.
•
Follow all fusing and wiring precautions requirements for the instrument integrated to the PD8 Series model number being
connected.
To access the connectors, remove the enclosure cover and unscrew the two captive screws that fasten the electronics module. Signal connections are made to de-pluggable connectors on the back of the electronics module.
Some connectors may be provided already connected. These connections are required for proper operation of the ProtEX-MAX, and should not be removed unless instructed to by this manual.
Wires marked as being used for testing purposes should be removed.
Grounding connections are made to the two ground screws provided on the base
– one internal and one external.
After all connections have been completed and verified, apply power to the unit.
Required & Factory Wired Connection
The ProtEX-MAX comes with a pre-wired connection. This connection is detailed below, and must be maintained in order for the instrument to function properly.
Observe all safety regulations. Electrical wiring should be performed
WARNING in accordance with all agency requirements and applicable national, state, and local codes to prevent damage to the meter and ensure personnel safety.
Figure 2: Integrated ProVu Required Connections
13
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Connectors Labeling
The connectors’ label, affixed to the meter, shows the location of all connectors available with requested configuration.
Warning!
Do not connect any equipment other than Precision
Digital’s expansion modules, cables, or meters to the RJ45 M-LINK connector. Otherwise damage will occur to the equipment and the meter.
Figure 3. Connector Labeling for Fully Loaded PD6060
Power Connections
Power connections are made to a two-terminal connector labeled POWER on Figure 3. The meter will
operate regardless of DC polarity connection. The + and - symbols are only a suggested wiring convention.
POWER
+
-
AC or DC
POWER
Required External Fuse:
5 A max, 250 V Slow Blow
Figure 4. Power Connections
14
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Signal Connections
Signal connections are made to a nine-terminal connector labeled
SIGNAL on Figure 3. The COM (common) terminals are the return for the 4-20 mA and the
10 V input signals. The two COM terminals connect to the same common return, and are not isolated.
Current and Voltage Connections
The following figures show examples of current and voltage connections.
There are no switches or jumpers to set up for current and voltage inputs. Setup and programming is performed through the front panel buttons.
Figure 5. Transmitters Powered by Internal Supply
Figure 6. Transmitter Powered by Ext. Supply or Self-Powered
The current input is protected against current overload by a resettable fuse. The display may or may not show a fault condition depending on the nature of the overload.
The fuse limits the current to a safe level when it detects a fault condition, and automatically resets itself when the fault condition is removed.
Figure 7. Voltage Input Connections
The meter is capable of accepting any voltage from -10 VDC to +10 VDC.
15
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Serial Communications Connections
The ProtEX-MAX has a 5 position terminal block for connecting RS-485 serial devices.
PDA7485 or PDA8485) for a four-wire network.
ProtEX-MAX to RS-485
Serial Converter Connections
RS-485 Serial
Converter
ProtEX-MAX RS-
485 Connections
DO
DO
DI
DI
DI
DO
DI DO
Figure 8: ProtEX-MAX Connections to a Serial Converter
The ProtEX-MAX has three diagnostic LEDs: a Power (P) LED to show when the module is powered properly, a Transmit Data (TX) LED to show when the module is being transmitted to by the PC side, and a Receive Data (RX) LED to show when the module is sending data to a receiving device.
The following diagrams detail how to connect the RS-485 serial communications from the ProtEX-MAX to a RS-485/RS-232 serial converter (PDA7485) in four wire and two wire configurations.
Three Wire Connections
In order to wire the 5 pins for use as a 3-wire half-duplex RS-485 connection, it is necessary to create a jumper connection between DI
– DO and DI- – DO- as shown below.
T X
F4 COM
1 2
RX DI DI DO DO
1 2 3 4 5
Figure 9. Three-Wire RS485 Connection
16
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Figure 10: RS-485 Wiring
Notes:
1. Termination resistors are optional and values depend on the cable length and characteristic impedance. Consult the cable manufacturer for recommendations.
2. Refer to RS-232 to RS-485 Converter documentation for further details.
3. Use shielded cable, twisted-pairs plus ground. Connect ground shield only at one location.
Observe all safety regulations. Electrical wiring should be performed in accordance with all agency requirements and applicable national,
WARNING
state, and local codes to prevent damage to the meter and ensure personnel safety.
17
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Figure 11: RS-485 Two-Wire Multi-Drop Wiring
Notes:
1. Termination resistors are optional and values depend on the cable length and characteristic impedance. Consult the cable manufacturer for recommendations.
2. Refer to RS-232 to RS-485 Converter documentation for further details.
3. Use shielded cable, twisted-pair plus ground. Connect ground shield only at one location.
Observe all safety regulations. Electrical wiring should be performed in accordance with all agency requirements and applicable national,
WARNING
state, and local codes to prevent damage to the meter and ensure personnel safety.
When using more than one instrument in a multi-drop or multi-point mode, each meter must be provided with its own unique address. See Modbus RTU Serial Communications on page 48.
Using P
RO
V
U
Serial Adapters
!
NOTICE
P
RO
V
U
expansion modules and serial adapters are not included in the hazardous area approvals of the ProtEX-MAX. The PDA1232 and PDA8008 may be used only while the ProtEX-MAX is in a safe area, and will disable some features while installed.
P
RO
V
U expansion modules and serial adapters are not recommended for use with the ProtEX-MAX. It is recommended that any serial protocol conversion required on the RS-485 communications connection be performed using a PDA7485 RS-232 to RS-485 or PDA8485 USB to RS-485 serial converter located in a safe area.
18
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Relay Connections
Relay connections are made to two six-terminal connectors labeled RELAY1
Each relay’s C terminal is common only to the normally open (NO) and normally closed (NC) contacts of the corresponding relay. The relays’ C terminals should not be confused with the COM (common) terminal of the INPUT SIGNAL connector.
6
RELAY4 RELAY3
5 4 3 2 1 6
RELAY2 RELAY1
5 4 3 2 1
NO NC C NO NC C NO NC C NO NC C
Figure 12. Relay Connections
Switching Inductive Loads
The use of suppressors (snubbers) is strongly recommended when switching inductive loads to prevent disrupting the microprocessor’s operation. The suppressors also prolong the life of the relay contacts.
Suppression can be obtained with resistor-capacitor (RC) networks assembled by the user or purchased as complete assemblies. Refer to the following circuits for RC network assembly and installation:
C
C
R
R
Figure 13. AC and DC Loads Protection
Choose R and C as follows:
R: 0.5 to 1
Ω for each volt across the contacts
C: 0.5 to 1 µF for each amp through closed contacts
Notes:
1. Use capacitors rated for 250 VAC.
2. RC networks may affect load release time of solenoid loads. Check to confirm proper operation.
3. Install the RC network at the meter's relay screw terminals. An RC network may also be installed across the load. Experiment for best results.
Use a diode with a reverse breakdown voltage two to three times the circuit voltage and forward current at least as large as the load current.
Figure 14. Low Voltage DC Loads Protection
RC Networks Available from Precision Digital
RC networks are available from Precision Digital and should be applied to each relay contact switching an inductive load. Part number: PDX6901.
Note: Relays are de-rated to 1/14th HP (50 watts) with an inductive load.
19
20
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
F4 Digital Input Connections
A digital input, F4, is standard on the meter. This digital input connected with a normally open closure across F4 and COM, or with an active low signal applied to F4.
Figure 15. F4 Digital Input Connections
4-20 mA Output Connections
Connections for the 4-20 mA transmitter output are made to the connector terminals labeled MA OUT.
The 4-20 mA output may be powered internally or from an external power supply.
24 V 24 V
3
RELAY1
2 1
MA OUT
II+ R
3 2 1 3
RELAY1
2 1
MA OUT
II+ R
3 2 1
+
-
4-20 mA Input
Remote Display,
Chart Recorder, Etc.
+
-
4-20 mA
Input Meter
-
+
12-35 VDC
Power
Supply
Figure 16. 4-20 mA Output Connections
Analog Output Transmitter Power Supply
The internal 24 VDC power supply powering the analog output may be used to power other devices, if the analog output is not used. The I+ terminal is the +24 V and the R terminal is the return.
Interlock Relay Feature
As the name implies, the interlock relay feature reassigns one, or more, alarm/control relays for use as interlock relay(s). Interlock contact(s) are wired to digital input(s) and trigger the interlock relay. This
interlock contacts are connected in series to one digital input which will be used to force on (energize) the assigned interlock power relay when all interlock contacts are closed (safe). The interlock relay front panel LED flashes when locked out. The interlock relay would be wired in-series with the load (N/O contact). See below.
Figure 17. Interlock Connections
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Digital I/O Connections
The ProtEX-MAX has a 10 position terminal block for connecting digital inputs and outputs.
1 2 3 4 5 6 7 8 9 10
+5 I1 I2 I3 I4 O1 O2 O3 O4 G
5 VDC DI 1-4 DO 1-4 GND
Figure 18: Digital I/O Connections
!
NOTICE
WARNING
The onboard digital inputs (1-4) are configured at the factory to function identically to the front panel pushbuttons (Menu, F1, F2, & F3) in order to work with the SafeTouch buttons. Changing the programming of the digital inputs will affect the function of the SafeTouch buttons.
If you wish to change the behavior of the digital inputs, re-assign F1-F3 to the desired function, then change the corresponding digital input to match.
Observe all safety regulations. Electrical wiring should be performed in accordance with all agency requirements and applicable national, state, and local codes to prevent damage to the meter and ensure personnel safety.
External Switch Contacts
The ProtEX-MAX includes 4 digital inputs. These digital inputs are preconfigured at the factory to function as external contacts to duplicate the front button functions of the instrument. The factory configuration uses the following corresponding digital input terminals for external switch contacts.
Digital
Input
Connection
I1
I2
Factory Default
Function
MENU
RIGHT arrow
I3
I4
UP arrow
ENTER arrow
See Digital Inputs & Outputs in the Specification on page 8 for details on the digital inputs.
!
NOTICE
The digital inputs are configured at the factory to function identically to the front panel pushbuttons in order to work with the SafeTouch buttons. Changing the programming of the digital inputs will affect the function of the SafeTouch buttons.
21
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Setup and Programming
The calibration equipment is traceable to NIST standards.
Overview
There are no jumpers to set for the meter input selection.
Setup and programming may be done through the infrared through-glass SafeTouch buttons, or using the mechanical buttons when uncovered. There is a slide switch located on the connector board. This is used to enable or disable SafeTouch Buttons.
After power and input signal connections have been completed and verified, apply power to the meter.
SafeTouch
®
Buttons
The ProtEX-MAX is equipped with four sensors that operate as through-glass buttons so that it can be programmed and operated without removing the cover (and exposing the electronics) in a hazardous area.
These buttons can be disabled for security by selecting DISABLE on the switch labeled NO-CONTACT
BUTTONS located on the connector board.
To actuate a button, press one finger to the glass directly over the marked button area. Then retract finger more than three inches from the glass before pressing the next button. When the cover is removed, the four mechanical buttons located next to the sensors are used. The sensors are disabled when a mechanical button is pressed and will automatically be re-enabled after 60 seconds of inactivity.
The SafeTouch Buttons are designed to filter normal levels of ambient interference and to protect against false triggering, however, it is recommended that the SafeTouch Buttons be disabled (slide switch to
LOCK) if there is an infrared interference source in line-of-sight to the display.
The SafeTouch Buttons are configured by default to duplicate the function of the front panel mechanical pushbuttons associated with the integrated meter. The symbols by each SafeTouch button correspond to a mechanical button as shown in the table on the next page.
SafeTouch Button Tips:
•
To the extent possible, install the display facing away from sunlight, windows, reflective objects and any sources of infrared interference.
•
Keep the glass window clean.
•
Tighten the cover securely.
•
Use a password to prevent tampering.
WARNING
Take caution when cleaning the window glass as it may result in unintentional SafeTouch button events. Only clean the ProtEX-MAX when the system is safely shut down, and inspect the ProtEX-MAX for proper configuration prior to system restart.
22
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Front Buttons and Status LED Indicators
Button Symbol Description LED Status
Menu
1-8 Alarm 1-8 indicator
Right arrow/F1
Up arrow/F2
1-8
M
A
B
C
Flashing: Relay in manual control mode
Channel displayed
Flashing: Tare
Notes:
Enter/F3
F4-8 are digital inputs.
1-4
Flashing: Relay interlock switch open
Note:
LEDs for relays in manual mode flash with the “M” LED every 10 seconds.
•
Press the Menu button to enter or exit the Programming Mode at any time.
•
Press the Right arrow button to move to the next digit during digit or decimal point programming.
•
Press or hold the Up arrow button to scroll through the menus, decimal point, or to increment the value of a digit.
•
Press the Enter button to access a menu or to accept a setting.
•
Press and hold the Menu button for three seconds to access the advanced features of the meter.
23
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
MeterView
®
Pro Software
The meter can also be programmed using the PC-based MeterView Pro software included with the meter.
This software can be installed on any Microsoft® Windows® (XP/Vista/7/8/10) computer by connecting the meter’s onboard USB. The meter is powered by the USB connection, so there is no need to wire anything prior to programming the meter, though USB is intended only for meter configuration.
MeterView Pro Installation
1.
Connect one end of the provided USB cable to the internal electronics module and the other end to the computer. The computer will automatically install the driver software it needs to talk to the meter. O
nly one meter may be connected at a time. Attaching multiple meters will cause a conflict with the meter software.
2.
Once the driver is installed, an AutoPlay dialog should appear for the drive “MAINSTAL.” Click “Open folder to view files.”
If the computer does not display an AutoPlay dialog for the drive “MAINSTAL,” you should open My Computer and doubleclick on the drive labeled “MAINSTAL.”
3.
Doubleclick on the file named “MAStart.” The program will open a few windows and install two programs on your computer. Simply follow the onscreen instructions until you see one of the dialogs below. If you receive a “User Account
Control” warning, click “Yes.”
4.
If there is an update available, click the “Update” button to install the new version. Otherwis e, click “Configure” to begin programming your meter.
Note:
If you decide to update your MeterView Pro software, once the installation has completed, you will be asked if you want to update the setup files located on the meter itself. This way, you will always have the most current version on the meter for future installs.
Warning!
Do not unplug the meter while the new installation files are being written to it. The meter will display uwrite
during the process and you will receive an onscreen notification once the process is complete.
Data logging for one meter at a time is available with MeterView Pro software. More advanced data acquisition may be accomplished by using any Modbus RTU compliant software. Additional information regarding configuration and monitoring of the meter using MeterView Pro software is available online.
Go to
www.predig.com/meterview-pro
.
24
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Display Functions & Messages
The following table shows the main menu functions and messages in the order they appear in the menu.
Display Parameter Action/Setting Description
setup
Setup
Enter
Setup
menu
Input
Input
Ch-A
*
Input
Enter
Input
selection menu
Set input type for channel A
(*or B)
mA
4-20 mA
Set meter for 4-20 mA input
volt
0-10 VDC
Set meter for
10 VDC input
units
Unit
Select the display units/tags
Ch-A
*
Unit
Dec pt
Decimal point
Ch-A
*
Decimal point
prog
Program
InCAL
Input calibration
Set unit or tag for channel A
(*or B or C)
Set decimal point
Set decimal point for channel A (*or B or C)
Enter the
Program
menu
Enter the
Input Calibration
menu
Ch-A
*
Input A
Set input type for channel A
(*or B)
SCAL A
Scale A
Enter the
Scale
menu for channel A
SCAl B
Scale B
Enter the
Scale
menu for channel B
Cal A
Calibrate A
Enter the
Calibration
menu for channel A
Cal B
Calibrate B
Enter the
Calibration
menu for channel B
Inp 1
Input 1
Calibrate input 1 signal or program input 1 value
Dis 1
Display 1
Program display 1 value
Inp 2
Input 2
Calibrate input 2 signal or program input 2 value (up to
32 points)
Dis 2
Display 2
Program display 2 value (up to 32 points)
Error
Error
Error, calibration not successful, check signal or programmed value
dsplay
Display
Line 1
Line 1
Line 2
Line 2
Enter the
Display
menu
Assign line 1 parameter
Assign line 2 parameter
D Ch-A
Display Ch-
A
D Ch-B
Display Ch-
B
D Ch-C
Display Ch-
C
Assign display to channel A
Assign display to channel B
Assign display to channel C
(math)
Display Parameter Action/Setting Description
D Ab
Display AB
Alternate display of channel
A & B
D AC
Display AC
Alternate display of channel
A & C
D BC
Display BC
Alternate display of channel
B & C
D AbC
Display
ABC
Alternate display of channel
A, B, & C
D set1
*
Display set
1*
Displays relay 1(*through 8) set point.
D Hi-A
Display high
A
Display high value of channel A
D Lo-A
D HL-A
Display low
A
Display hi/low A
Display low value of channel
A
Alternate between high/low value of channel A
D Hi-B
Display high
B
Display high value of channel B
D Lo-B
Display low
B
D HL-B
Display high/low B
Display low value of channel
B
Alternate between high/low value of channel B
D Hi-C
Display high
C
Display high value of channel C
D Lo-C
Display low
C
D HL-C
Display high/low C
Display low value of channel
C
Alternate between high/low value of channel C
D a-u
Display A and units/tags
D B-u
Display B and units/tags
Alternate display of channel
A and the unit/tag
Alternate display of channel
B and the unit/tag
D C-u
Display B and units/tags
A Gros
Display A gross
A nt-G
Display A net and gross
B Gros
Display B gross
B nt-G
Display B net and gross
Alternate display of channel
C and the unit/tag
Display input channel A gross (no tare)
Alternate display of channel
A net (tare) and gross (no tare)
Display input channel B gross (no tare)
Alternate display of channel
B net (tare) and gross (no tare)
25
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Display Parameter Action/Setting Description
m bus
Display
Modbus
Display Modbus input register
D off
Display off
Display blank (line 2)
D unit
Display unit
Display line 1 channel units
d-Inty
Display intensity
Set display intensity level from 1 to 8
RELaY
Relay
Enter the
Relay
menu
Assign
Assignment
Assign relays to channels or
Modbus
Asign1
Assign 1
Relay 1 assignment
Ch-A
*
Channel A*
Assign relay to channel A
(*or B or C)
m bus
Modbus
Assign relay to Modbus register
RLY 1
Act 1
Relay 1
Action 1
LatCH
Latching
Relay 1 setup
Set relay 1 action
Auto
Automatic
Set relay for automatic reset
A-nman
Automanual
Set relay for auto or manual reset any time
Set relay for latching operation
cleared
Set relay for latching operation with manual reset only after alarm condition has cleared
Set relay for pump alternation control
SAmpl
Sample
Set relay for sample time trigger control
Off
Off
FaiLSF
Fail-safe
Turn relay off
Enter
Fail-safe
menu
FLS 1
*
Fail-safe 1
Set relay 1 (*through 8) failsafe operation
on
On
off
Off
DeLAY
Delay
Enable fail-safe operation
Disable fail-safe operation
Enter relay menu
Time Delay
DLY 1
Delay 1
Enter relay 1 time delay setup
On 1
On 1
OFF 1
Off 1
DLY 2
Delay 2
Set relay 1 On time delay
Set relay 1 Off time delay
Enter relays 2-4 time delay setup
Display Parameter Action/Setting Description
break
Loop break
Set relay condition if loop break detected
ignore
Ignore
Ignore loop break condition
(Processed as a low signal condition)
On
On
Relay goes to alarm condition when loop break detected
Off
Off
Relay goes to non-alarm condition when loop break detected
Aout
Analog output
Enter the
Analog output
scaling menu
AOut 1
*
Aout channel
Analog Output source channel (*1-3)
Dis 1
Display 1
Program display 1 value
Out 1
Output 1
Program output 1 value (e.g.
4.000 mA)
Dis 2
Display 2
Program display 2 value
Out 2
Output 2
Program output 2 value (e.g.
20.000 mA) reset
Reset
Press Enter to access the
Reset
menu
Rst Hi
Reset high
Press Enter to reset max display
Rst Lo
Reset low
Press Enter to reset min display
Rst HL
Reset high & low
Press Enter to reset max & min displays
Rst tr
Reset tare
Press Enter to reset (cancel) tare
Contrl
Control
Auto
Automatic
Enter
Control
menu
Press Enter to set meter for automatic operation mAn
Manual
Press Enter to manually control relays or analog output operation pass
Pass 1
*
Password
1*
Set or enter Password 1
(*through 3)
unloc
Unlocked
Program password to lock meter
locd
Locked
Enter password to unlock meter
999999
-99999
Password
Enter the
Password
menu
Flashing
Over/under range condition
26
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Main Menu
The main menu consists of the most commonly used functions:
Reset, Control, Setup
, and
Password
.
•
Press Menu button to enter Programming
Mode then press the Up arrow button to scroll main menu.
•
Press Menu, at any time, to exit and return to Run Mode. Changes made to settings prior to pressing Enter are not saved.
•
Changes to the settings are saved to memory only after pressing Enter.
•
The display moves to the next menu every time a setting is accepted by pressing Enter.
Setting Numeric Values
The numeric values are set using the Right and Up arrow buttons. Press Right arrow to select next digit and Up arrow to increment digit value. The digit being changed is displayed brighter than the rest. Press and hold Up to auto-increment the display value. If negative numbers are allowed, the first digit position will include a negative symbol (
-
) after the 9.
Press the Enter button, at any time, to accept a setting or Menu button to exit without saving changes.
0 0 4.000
dis 1
Select
Next
Digit
00 4 .000
dis 1
00 5 .000
Increment dis 1
Digital
V alue
Accept
Setting
Next
Setting
27
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Setting Up the Meter (
setup
)
The
Setup
menu is used to select:
1. Input signal the meter will accept for channel A and channel B
2. Units for A, B, and C
3. Decimal point position for A, B, and C
4. Program the meter using the Scale or
Calibrate functions
5. Display parameter and intensity
6. Relay assignment and operation
7. 4-20 mA analog output scaling
Press the Menu button to exit at any time.
Setting the Input Signal (
Input
)
Enter the
Input
menu to set up the meter to display current
( mA
) or voltage ( volt
) inputs for channel A and channel
B.
The current input is capable of accepting any signal from 0 to 20 mA. Select current input to accept 0-20 mA or 4-20 mA signals.
The voltage input is capable of accepting any signal from -
10 to +10 VDC. Select voltage input to accept 0-5, 1-5, 0-
10, or
10 VDC signals.
Channel C is the Math Function calculation, which is set up in the Advanced Features menu.
28
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Setting the Decimal Point (
dEc pt
)
The decimal point may be set with up to five decimal places or with no decimal point at all.
Pressing the Right arrow moves the decimal point one place to the right until no decimal point is displayed, and then it moves to the leftmost position.
There are three decimal points to set up for three channels: Ch-A, Ch-B, and Ch-C.
After the decimal points are set up, the meter moves to the
Program
menu.
Programming the Meter (
prog
)
It is
very important
to read the following information, before proceeding to program the meter:
•
The meter is factory calibrated prior to shipment to read in milliamps and volts depending on the input selection. The calibration equipment is traceable to NIST standards.
•
Use the
Scale
menu to scale the process input (e.g. 4-20 mA). A calibrated signal source is not needed to scale the meter.
•
Use the
Calibrate
menu to apply a signal from a calibrator or a flowmeter.
The
Program
menu contains the
Scale
and the
Calibrate
menus for channels A & B.
The process inputs may be calibrated or scaled to any display value within the range of the meter.
Note: The Scale and Calibrate functions are exclusive of each other. The meter uses the last function programmed. Only one of these methods can be employed at a time. The Scale and Calibrate functions can use up to 32 points (default is 2). The number of points should be set in the Advanced Menu under
the menu selection prior to scaling and calibration of the meter, see page 51 for details.
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ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Multi-Point Linearization (
Linear
)
The process inputs may be calibrated or scaled to any display value within the range of the meter. The meter is set up at the factory for 2-point linear calibration.
Up to 32 linearization points may be selected. See page 51 for details.
MeterView
®
Pro Software
The meter can also be programmed using the PC-based MeterView Pro software available for free download at www.predig.com
.
Data logging for one meter at the time is available with MeterView Pro software. More advanced data acquisition may be accomplished by using any Modbus RTU compliant software.
In order to program the meter using a computer, the meter must be connected using a USB, RS-232, or
Scaling the Meter without a Signal Source
The process inputs (4-20 mA,
10 VDC) can be scaled to display the process variables in engineering units.
A signal source is not needed to scale the meter; simply program the inputs and corresponding display values.
Scaling the Meter for Channel A (
SCal-A
)
Scaling the Meter for Channel B (
SCal-B
)
30
For instructions on how to program
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Error Message (
Error
)
An error message indicates that the calibration or scaling process was not successful.
After the error message is displayed, the meter reverts to input 2 during calibration or scaling and to input
1 during internal calibration, allowing the appropriate input signal to be applied or programmed.
The error message might be caused by any of the following conditions:
1. Input signal is not connected to the proper terminals or it is connected backwards.
2. Wrong signal selection in
Setup
menu.
3. Minimum input span requirements not maintained.
4. Input 1 signal inadvertently applied to calibrate input 2.
Minimum Input Span
The minimum input span is the minimum difference between input 1 and input 2 signals required to complete the calibration or scaling of the meter.
Calibrating the Meter with External Source
Input Range
4-20 mA
10 VDC
Input 1 & Input 2 Span
0.15 mA
0.01 VDC
To scale the meter without a signal source,
Scaling the Meter without a Signal
Warm up the meter for at least 15 minutes before performing calibration to ensure specified accuracy.
The meter can be calibrated to display the process variable in engineering units by applying the appropriate input signal and following the calibration procedure.
The use of a calibrated signal source is strongly recommended to calibrate the meter.
Calibrating the Meter for Channel A (
CAL-A
)
Calibrating the Meter for Channel B (
CAL-B
)
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ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Setting the Display Parameter & Intensity (
dsplay
)
Display line 1 can be programmed to display:
1. Process value Ch-A
2. Process value Ch-B
3. Process value Ch-C
4. Toggle between Ch-A & Ch-B, Ch-A & Ch-C, Ch-B & Ch-C, and Ch-A, Ch-B, & Ch-C
5. Relay set points
6. Max & min values for each channel
7. Toggle between Channel & units
8. Channel gross value (no tare) or toggle net (tare) and gross values
9. Modbus input
Display line 2 can be programmed to display:
1. Process value Ch-A
2. Process value Ch-B
3. Process value Ch-C
4. Toggle between Ch-A & Ch-
B, Ch-A & Ch-C, Ch-B & Ch-
C, and Ch-A, Ch-B, & Ch-C
5. Relay set points
6. Max & min values for each channel
7. Toggle between Channel & units
8. Channel gross value (no tare) or toggle net (tare) and gross values
9. Modbus input
10. Off (no display)
11. Engineering units or custom legends
Display Intensity:
The meter has eight display intensity levels to give the best performance under various lighting conditions. Select intensity 8 for outdoor applications. The default intensity setting is 8.
After setting up the input and display, press the Menu button to exit programming and skip the rest of the setup menu.
The displays can be set up to read channels A, B, or C, toggle between A & B, B & C, A & C, A & B & C, toggle between channels A, B, or C & units, the max/min of any of the channels, including the math channel (C), set points, gross (without tare) or net (with tare) & gross values of channel A or B, or the
Modbus input. In addition to the parameters available on the Upper display, the Lower display can display
Engineering units or it could be turned off.
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ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Setting the Input Units or Custom Tags (
units
)
Enter the input unit or custom tag that will be displayed if alternating process input and units is selected in the units menu, or d unit
is selected as the lower display parameter. See the flow chart on page 32 to
access the display menu to show the unit or tag on the lower display. The engineering units or custom legends can be set using the following 7-segment character set:
Display Character Display Character Display Character Display Character
0
0
C
C k
K v
V
1
1 c c l
L u w w
2
3
4
5
2
3
4
5 d e f g d
E
F
G
n m n
O o m n
O o x y z
-
X
Y
Z
-
6
7
8
9
A b
6
7
8
9
A b
9
H h
I
I j g
H h
I i
J p q r s t u
P q r
S t u
/
[
]
=
/
]
[
=
!
Degree(<)
Space
Notes: Degree symbol represented by (<) if programming with MeterView
®
Pro. The letters “m” and “w” use two 7-segment LEDs each; when selected the characters to the right are shifted one position.
Press and hold up arrow to auto-scroll the characters in the display.
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ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Setting the Relay Operation (
relay
)
This menu is used to set up the assignment and operation of the relays.
!
Caution!
During setup, the relays do not follow the input and they will remain in the state found prior to entering the Relay menu.
1. Relay assignment a. Channel A b. Channel B c. Channel C (Math channel) d. Modbus
2. Relay action a. Automatic reset only (non-latching) b. Automatic + manual reset at any time (non-latching) c. Latching (manual reset only) d. Latching with Clear (manual reset only after alarm condition has cleared) e. Pump alternation control (automatic reset only) f. Sampling (the relay is activated for a userspecified time) g. Off (relay state controlled by Interlock feature)
3. Set point
4. Reset point
5. Fail-safe operation a. On (enabled) b. Off (disabled)
6. Time delay a. On delay (0-999.9 seconds) b. Off delay (0-999.9 seconds)
7. Relay action for loss (break) of 4-20 mA input (ignore, on, off)
Setting the Relay Assignment (
asSign
)
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ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Setting the Relay Action
Operation of the relays is programmed in the
Action
menu. The relays may be set up for any of the following modes of operation:
1. Automatic reset (non-latching)
2. Automatic + manual reset at any time (non-latching)
3. Latching (manual reset only, at any time)
4. Latching with Clear (manual reset only after alarm condition has cleared)
5. Pump alternation control (automatic reset only)
6. Sampling (the relay is activated for a user-specified time)
7. Off (relay state controlled by Interlock feature)
The following graphic shows relay 1 action setup; relay 2-4 are set up in a similar fashion.
Programming Set and Reset Points
High alarm indication: program set point above reset point.
Low alarm indication: program set point below reset point.
The deadband is determined by the difference between set and reset points. Minimum deadband is one display count. If the set and reset points are programmed with the same value, the relay will reset one count below the set point.
Note: Changes are not saved until the reset point has been accepted.
Setting Fail-Safe Operation
In fail-safe mode of operation, the relay coil is energized when the process variable is within safe limits and the relay coil is de-energized when the alarm condition exists. The fail-safe operation is set independently for each relay. Select on
to enable or select off
to disable fail-safe operation.
Programming Time Delay
The
On
and
Off
time delays may be programmed for each relay between 0 and 999.9 seconds. The relays will transfer only after the condition has been maintained for the corresponding time delay.
The
On
time delay is associated with the set point.
The
Off
time delay is associated with the reset point.
Relay Action for Loss of 4-20 mA Input (Loop Break)
The loop break feature is associated with the 4-20 mA input. Each relay may be programmed to go to one of the following conditions when the meter detects the loss of the input signal (i.e. < 0.005 mA):
1. Turn
On
(Go to alarm condition)
2. Turn
Off
(Go to non-alarm condition)
3. Ignore (Processed as a low signal condition)
Note: This is not a true loop break condition; if the signal drops below 0.005 mA, it is interpreted as a
“loop break” condition.
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ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Relay and Alarm Operation Diagrams
The following graphs illustrate the operation of the relays, status LEDs, and ACK button.
High Alarm Operation (Set > Reset)
Low Alarm Operation (Set < Reset)
For Manual reset mode, ACK can be pressed anytime to turn "off" relay. To detect a new alarm condition, the signal must go below the set point, and then go above it.
High Alarm with Fail-Safe Operation
(Set > Reset)
For Manual reset mode, ACK can be pressed anytime to turn "off" relay. For relay to turn back "on", signal must go above set point, and then go below it.
Low Alarm with Fail-Safe Operation
(Set < Reset)
Note: Relay coil is energized in non-alarm condition.
In case of power failure, relay will go to alarm state.
Note: Relay coil is energized in non-alarm condition.
In case of power failure, relay will go to alarm state.
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ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Pump Alternation Control Operation
Relay Sampling Operation
Input
Set
Reset
Sample
Time
Sample
Time
Sample
Time
Relay
LED
When the signal crosses the set point, the relay trips and the sample time starts. After the sample time has elapsed, the relay resets. The cycle repeats every time the set point is crossed, going up for high alarms and going down for low alarms.
The sample time can be programmed between 0.1 and 5999.9 seconds.
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ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Signal Loss or Loop Break Relay Operation
The following graph shows the loop break relay operation for a high alarm relay.
Input
Set
Reset
Relay de-energized
LED off energized on
Loop Break = Ignore
Relay
LED
Loop Break = Off
Relay
LED
Loop Break = On
When the meter detects a break in the 4-20 mA loop, the relay will go to one of the following selected actions:
1. Turn
On
(Go to alarm condition)
2. Turn
Off
(Go to non-alarm condition)
3. Ignore (Processed as a low signal condition)
Time Delay Operation
The following graphs show the operation of the time delay function.
When the signal crosses the set point, the
On
time delay timer starts and the relay trips when the time delay has elapsed. If the signal drops below the set point (high alarm) before the time delay has elapsed, the
On
time delay timer resets and the relay does not change state. The same principle applies to the
Off
time delay.
Note: If
“
Automatic or Manual
(
A-mAn
)”
reset mode is selected, the LED follows the reset point and not the relay state when the relay is acknowledged.
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ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Relay Operation Details
Overview
The relay capabilities of the meter expand its usefulness beyond simple indication to provide users with alarm and control functions. These capabilities include front panel alarm status LEDs as well as either 2 or 4 optional internal relays. Typical applications include high or low temperature, level, pressure or flow alarms, control applications such as simple on/off pump control, and pump alternation control for up to 4 pumps. There are four basic ways the relays can be used:
1. High or Low Alarms with Latching or Non-Latching Relays
2. Simple On/Off Control with 100% Adjustable Deadband
3. Sampling (Based on Time)
4. Pump Alternation Control for up to 4 Pumps
Relays Auto Initialization
When power is applied to the meter, the front panel LEDs and alarm relays will reflect the state of the input to the meter. The following table indicates how the alarm LEDs and relays will react on power-up based on the set and reset points:
Alarm #
1
2
3
4
HI or LO
Alarm
HI
LO
LO
HI
Set Point
1000
700
250
450
Reset
Point
500
900
400
200
Power-Up
Reading
499
499
499
499
Relay &
LED
Off
On
Off
On
Fail-Safe Operation
The following table indicates how the relays behave based on the fail-safe selection for each relay:
Fail-Safe
Selection
Off
On
Non-Alarm State
NO
Open
Closed
NC
Closed
Open
Alarm State Power Failure
NO
Closed
Open
NC
Open Relays go to non-alarm state
Closed Relays go to alarm state
Note: NO = Normally Open, NC = Normally Closed. This refers to the condition of the relay contacts when the power to the meter is off.
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ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Front Panel LEDs
The LEDs on the front panel provide status indication for the following:
LED Status LED Status
1 Alarm 1 5 Alarm 5
The meter is supplied with four alarm points that include front panel LEDs to indicate alarm conditions. This standard feature is particularly useful for alarm applications that require visualonly indication. The LEDs are controlled by the set and reset
2
3
4
Alarm 2
Alarm 3
Alarm 4
6
7
8
Alarm 6
Alarm 7
Alarm 8 points programmed by the user. When the display reaches a set point for a high or low alarm, the corresponding alarm LED will turn on. When the display returns to the reset point the LED will go off. The front panel LEDs responds differently for latching and non-latching relays.
For non-latching relays, the LED is always off during normal condition and always on during alarm condition, regardless of the state of the relay (e.g. Relay acknowledged after alarm condition).
For latching relays, the alarm LEDs reflects the status of the relays, regardless of the alarm condition. The following tables illustrate how the alarm LEDs function in relation to the relays and the acknowledge button (Default: F3 key assigned to ACK):
Latching and Non-Latching Relay Operation
The relays can be set up for latching (manual reset) or non-latching (automatic reset) operation.
The On and Off terminology does not refer to the status of the relay’s coil, which depends on the fail-safe mode selected.
Relay terminology for following tables
Terminology Relay Condition
On
Off
Ack
Alarm (Tripped)
Normal (Reset)
Acknowledged
Warning!
In latching relay mode, latched relays will reset (unlatch) when power is cycled.
Non-Latching Relay (
Auto
)
In this application, the meter is set up for automatic reset
(non-latching relay). Acknowledging the alarm while it is still present has no effect on either the LED or the relay. When the alarm finally goes away, the relay automatically resets and the LED also goes off.
Non-Latching Relay (
A-man
)
In this application, the meter is set up for automatic and manual reset at any time (non-latching relay). The LED and the relay automatically reset when the meter returns to the normal condition.
The next time an alarm occurs, the operator acknowledges the alarm manually while the alarm condition still exists.
This causes the relay to reset, but the LED stays on until the meter returns to the normal condition.
Latching Relay (
LatcH
)
In this application, the meter is set up for manual reset at any time. Acknowledging the alarm even if the alarm condition is still present resets the relay and turns off the LED.
Automatic reset only
Condition LED
Normal
Alarm
Off
On
Ack (No effect)
Normal
On
Off
Relay
Off
On
On
Off
Automatic + manual reset at any time
Condition LED Relay
Normal
Alarm
Off
On
Off
On
Normal
Next Alarm
Ack
Normal
Off
On
On
Off
Off
On
Off
Off
Manual reset any time
Condition LED
Normal
Alarm
Ack
Off
On
Off
Relay
Off
On
Off
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ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Latching Relay (
Lt-Clr
)
In this application, the meter is set up for manual reset only after the signal passes the reset point (alarm condition has cleared). Acknowledging the alarm while it is still present has no effect on either the LED or the relay. When the alarm is acknowledged after it returns to the normal state, the LED and the relay go off. Notice that the LED remains on, even after the meter returns to the normal condition. This is because, for latching relays, the alarm LED reflects the status of the relay, regardless of the alarm condition.
Manual reset only after alarm condition has cleared
Condition
Normal
LED
Off
Relay
Off
Alarm On
Ack (No effect) On
Normal
Ack
On
Off
On
On
On
Off
Acknowledging Relays
There are two ways to acknowledge relays programmed for manual reset:
1. Via the programmable front panel function keys F1-F3 (Default:
F3 assigned to ACK).
2. Remotely via a normally open pushbutton wired across one of the digital inputs and the +5 V terminals on the digital I/O modules, or using the F4 digital input, which is triggered with a contact
closure to COM, or with an active low signal (see page 20).
When the ACK button or the assigned digital input is closed, all relays programmed for manual reset are acknowledged.
1
PDA1044 Digital I/O Module
2 3 4 5 6 7 8 9 10
+5
I1 I2 I3 I4
O1 O2 O3 O4 G
DI 1-4 DO 1-4
GND
ACK
Figure 19. Acknowledge Relays w/Function Key or Digital Input
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ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Pump Alternation Control Applications (
Altern
)
For pump control applications where two or more similar pumps are used to control the level of a tank or a well, it is desirable to have all the pumps operate alternately. This prevents excessive wear and overheating of one pump over the lack of use of the other pumps.
Up to 4 relays can be set up to alternate every time an on/off pump cycle is completed. The set points and reset points can be programmed, so that the first pump on is the first pump off.
Application #1: Pump Alternation Using Relays 1 & 2
1. Relays 1 and 2 are set up for pump alternation.
2. Relays 3 and 4 are set up for low and high alarm indication.
Set and Reset Point Programming with Pump Alternation
Relay Set Point Reset Point Function
1
2
30.000
35.000
10.000
5.000
Controls pump 1 & 2
Sets dual pump trigger
3
4
4.000
40.000
9.000
29.000
Controls low alarm
Controls high alarm
Pump Alternation Operation
1. Pump #1 turns on when level reaches 30.000, when level drops below 10.000 pump #1 turns off.
2. The next time level reaches 30.000, pump #2 turns on, when level drops below 10.000, pump #2 turns off.
3. If the level doesn’t reach 35.000 pump #1 and pump #2 will be operating alternately.
4. If pump #1 cannot keep the level below 35.000 pump #2 will turn on at 35.000, then as the level drops to 10.000 pump #1 turns off, pump #2 is still running and shuts off below 5.000.
5. Notice that with the set and reset points of pump #2 outside the range of pump #1, the first pump on is the first pump to go off. This is true for up to 4 alternating pumps, if setup accordingly.
6. Relay #3 will go into alarm if the level drops below 4.000 and relay #4 will go into alarm if the level exceeds 40.000.
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ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Setting Up the Interlock Relay (Force On) Feature
Relays 1-4 can be set up as interlock relays. To set up the relays for the interlock feature:
1. Access the
Setup
–
Relay
–
Action
menu and set the action to off.
2. In the Advanced features
–
User
menu program any of the digital inputs to
Force On
any of the internal relays (1-4).
3. Connect a switch or dry contact between the +5V terminal and the corresponding digital input (dI-1 to dI-4) terminal.
SW2
SW1
1 2 3 4 5 6 7 8 9 10
+5 I1 I2 I3 I4 O1 O2 O3 O4 G
5 VDC
DI 1-4 DO 1-4
GND
Interlock Relay Operation Example
Relays 1 & 2 are configured to energize (their front panel LEDs are off) when SW1 & SW2 switches
(above) are closed. If the contacts to these digital inputs are opened, the corresponding front panel LEDs flash, indicating this condition. The processes being controlled by the interlock relay will stop, and will restart only after the interlock relay is re-activated by the digital inputs (switches).
Note: If multiple digital inputs are assigned to the same relay, then the corresponding logic is (AND)
– i.e. both switches must be closed to trip the relay.
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ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Scaling the 4-20 mA Analog Output (
Aout
)
The 4-20 mA analog outputs can be scaled to provide a 4-20 mA signal for any display range selected.
To select the channel and source assignments the analog outputs are assigned to, see
Analog Output
Source
No equipment is needed to scale the analog outputs; simply program the display values to the corresponding mA output signal.
The
Analog Output
menu is used to program the 4-20 mA outputs based on display values.
For instructions on how to program
Reset Menu (
reset
)
The
Reset
menu is used to reset the maximum or minimum reading (peak or valley) reached by the process; both may be reset at the same time by selecting “reset high & low” ( rst HL
). The tare value used to zero the display may be reset by selecting “reset tare” ( rst tr ).
Control Menu (
Contrl
)
The
Control
menu is used to control the 4-20 mA analog output and the relays manually, ignoring the input. Each relay and analog output can be programmed independently for manual control. Selecting automatic control sets all relays and analog output for automatic operation.
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ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Setting Up the Password (
pass
)
The
Password
menu is used for programming three levels of security to prevent unauthorized changes to the programmed parameter settings.
Pass 1: Allows use of function keys and digital inputs
Pass 2: Allows use of function keys, digital inputs and editing set/reset points
Pass 3: Restricts all programming, function keys, and digital inputs.
Protecting or Locking the Meter
Enter the
Password
menu and program a six-digit password.
For instructions on how to program numeric values see
Making Changes to a Password Protected Meter
If the meter is password protected, the meter will display the message
Locd
(
Locked
) when the Menu button is pressed. Press the Enter button while the message is being displayed and enter the correct password to gain access to the menu. After exiting the programming mode, the meter returns to its password protected condition.
Disabling Password Protection
To disable the password protection, access the
Password
menu and enter the correct password twice, as shown below.
The meter is now unprotected until a new password is entered.
If the correct six-digit password is entered, the meter displays the message unLoc
(
Unlocked
) and the protection is disabled until a new password is programmed.
If the password entered is incorrect, the meter displays the message Locd
(
Locked
) for about two seconds, and then it returns to Run Mode. To try again, press
Enter while the
Locked
message is displayed.
Did you forget the password?
The password may be disabled by entering a master password once. If you are authorized to make changes, enter the master password
508655 to unlock the meter.
45
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Advanced Features Menu
To simplify the setup process, functions not needed for most applications are located in the
Advanced
Features
menu.
Press and hold the Menu button for three seconds to access the advanced features of the meter.
Advanced Features Menu & Display Messages
The following table shows the functions and messages of the
Advanced Features
menu in the order they appear in the menu.
Display filtEr
Ch-A
Ch-b bypASs
Ch-A
Ch-b
Round seriAl
SlaveId
Baud
Tr dLY
Parity t-byt
SelEct
Parameter
Filter
Action/Setting
Set noise filter value
Display
Functn
Channel A
Set filter value for channel A
Channel B
Set filter value for channel B
Ch-A
Bypass
Set filter bypass value
Ch-b
Channel A
Set filter bypass value for channel A
Linear
Channel B
Set filter bypass value for channel B
No pts
Round
Set the rounding value for display variables
Serial
Square
Slave ID
Set serial communication parameters
Set slave ID or meter address
Prog E
Baud rate
Select baud rate
Transmit delay
Parity
Time byte
Select
Set transmit delay for serial communication
Select parity
Even, Odd, or None with 1 or 2 stop bits
Set byte-to-byte timeout
Enter the Select menu
(function, cutoff, out)
Parameter
Signal input conditioning
Channel A
Channel B
Linear
Number of points
Action/Setting
Select linear, square root, programmable exponent, or round horizontal tank
Select menu for channel A
Select menu for channel B
Set meter for linear function and select number of linearization points
Set the number of linearization points (default:
2)
Square root
Set meter for square root extraction
Rht
Dif
Length
dianmr
nmath
Sunm
Programma ble exponent
Round horizontal tank
Length
Diameter
Set meter for programmable exponent and enter exponent value
Set meter for round horizontal tank volume calculation
Enter the tank’s length in inches
Enter the tank’s diameter in inches
Math
Sum
Enter the setup menu for channel C math functions
Channel C = (A+B+P)*F
Difference
Channel C = (A-B+P)*F
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ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Display
difabs
Avg
nmulti
Divide
Hi-ab
Lo-ab
ratio
Ratio2
Concen
Const
adder
factor
Drauw
uwAvg
Parameter
Absolute difference
Average
Multiplicatio n
Divide
Max of A or
B
Min of A or
B
Draw
Weighted avg.
Ratio
Ratio 2
Concentrati on
Constant
Adder
Action/Setting
Channel C = ((Absolute value of (A-B))+P)*F
Channel C =
(((A+B)/2)+P)*F
Channel C = ((A*B)+P)*F
Channel C = ((A/B)+P)*F
C = ((High value of channel
A or B)+P)*F
C = ((Low value of channel
A or B)+P)*F
Channel C = ((A/B)-1)*F
Channel C = ((B-A)*F)+A
Channel C = (A/B)*F
C = ((B-A)/A)+P)*F
Channel C = (A/(A+B))*F
Display
nmin
F4
Parameter
Minimum
Action/Setting
Program minimum mA output allowed
Calib
Calibrate 4-20 mA output
(internal reference source used for scaling the output)
4 nmA
4 mA output
Enter mA output value read by milliamp meter with at least 0.001 mA resolution
20 nmA
20 mA output
Enter mA output value read by milliamp meter with at least 0.001 mA resolution
User
User I/O
Assign function keys and digital I/O
F1
*
Calibrate
F1* function key
Assign F1 function key
(*F1/F2/F3)
F4 function
Assign F4 function (digital input)
dI I
Digital input
1
Assign digital input 1
– 4
dO 1
Constant used in channel C math
Addition constant used in channel C math calculations
(P)
ICal
Digital output 1
Internal calibration
Assign digital output 1
– 4
Enter internal calibration
(used for recalibrating the meter with a calibrated signal source)
Factor
Multiplication constant used in channel C math calculations (F)
Ch-A
Ch-b
Channel A
Channel B
Perform calibration on channel A
Perform calibration on channel B
CutofF
Ch-A
Cutoff
Set low-flow cutoff
Channel A
Set low-flow cutoff for
Channel A
Ch-b
Channel B
Set low-flow cutoff for
Channel B
AoutPr
Analog output programmin g
AOut 1
*
Analog output 1
Source
Source
Program analog output 1
(*1-3) parameters
Select source for the 4-20 mA output
break
Loop break
Set relay condition if loop break detected
O-rang
Overrange
Program mA output for display overrange
u-rang
Underrange
Program analog output parameters
Program mA output for display underrange
nmAx
Maximum
Program maximum mA output allowed
C CAL
C lo
C Hi v CAL
v Lo
v Hi
Diag
LED t
Info
Current calibration
Current low
Current high
Voltage calibration
Voltage low
Voltage high
Diagnostics
LED test
Information
Calibrate 4-20 mA current input (internal reference source used for scaling the input)
Calibrate low current input
(e.g. 4 mA)
Calibrate high current input
(e.g. 20 mA)
Calibrate voltage input
Calibrate low voltage input
(e.g. 0 V)
Calibrate high voltage input
(e.g. 10 V)
Display parameter settings
Test all LEDs
Display software and S/N information
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ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Noise Filter (
filter
)
The noise filter is available for unusually noisy signals that cause an unstable process variable display. The noise filter averages the input signal over a certain period. The filter level determines the length of time over which the signal is averaged. The filter level can be set between 2 and 199. The higher the filter level, the longer the averaging time and so the longer it takes the display to settle to its final value. Setting the filter level to zero disables the filter function.
Noise Filter Bypass (bypass)
The noise filter bypass changes the behavior of the meter so that small variations in the signal are filtered out but large abrupt changes in the input signal are displayed immediately. The bypass value determines the minimum amount of signal change to be displayed immediately. All signal changes smaller than the bypass value are filtered or averaged by the meter. The noise filter bypass may be set between 0.1 and 99.9% of full scale.
Rounding Feature (
round
)
The rounding feature is used to give the user a steadier display with fluctuating signals. Rounding is used in addition to the filter function.
Rounding causes the display to round to the nearest value according to the rounding selected. This setting affects the last two digits, regardless of decimal point position.
Modbus RTU Serial Communications (
serial
)
The meter is equipped with serial communications capability as a standard feature using Modbus RTU
Serial Communication Protocol.
The meter may be connected to a PC for initial configuration via the onboard micro USB connection. For ongoing digital communications with a computer or other data terminal equipment, an RS-232, or RS-485 option is required; see
Ordering Information
Warning!
Do not connect any equipment other than Precision
Digital’s expansion modules, cables, or meters to the RJ45 M-LINK connector. Otherwise damage will occur to the equipment and the meter.
Note: More detailed instructions are provided with each optional serial communications adapter.
Note: Refer to the ProVu® Modbus Register Tables located at www.predig.com for details.
When using more than one meter in a multi-drop mode, each meter must be provided with its own unique address. The meter address (Slave ID) may be programmed between 1 and 247. The transmit delay may be set between 0 and 199 ms. The parity can be set to even, odd, or none with 1 or 2 stop bits.
Changes made to the Serial menu are initialized after the MENU key is pressed or after navigating through the t-byte parameter.
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ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Serial Communications Overview
RS-232 and RS-485 are standard interfaces approved by the Electronic Industries Alliance (EIA) for connecting serial devices. In EIA terms, the device (e.g. meter) that connects to the interface is called a
Data Communications Equipment (DCE) and the device to which it connects (e.g. the computer) is called a Data Terminal Equipment (DTE).
RS-485 can support multi-point connections per line because it uses lower-impedance drivers and receivers.
Line drivers and receivers are used to exchange data between two or more points (nodes) on a serial communications network. Reliable data communications can be difficult in the presence of induced noise, ground level differences, and other hazards associated with installation of a network. When communicating at high data rates, or over long distances in real world environments, RS-232 is often inadequate. The differential data transmission of RS-485 offers superior performance in most applications. Differential signals can help nullify the effects of ground shifts and induced noise signals that can appear as common mode voltages on a network.
A multi-point network consists of multiple drivers and receivers connected on a single bus, where any point (node) can transmit and/or receive data. RS-485 allows multiple drivers and receivers on the same two-wire or four-wire system. The RS-485 standard specifies up to 32 drivers and 32 receivers on a single bus, but with the introduction of "automatic" repeaters and high-impedance drivers/receivers, this number can be extended to hundreds of points (nodes) on a network.
The cabling used for an RS-485 serial communications network should always be a high quality cable such as Belden 8162 or Alpha 6203C. A two-wire system requires two twisted pairs, and a four-wire system requires three twisted pairs (the extra twisted pair is needed for the signal ground).
wires).
PDA8485
RS-485 DEVICE
GND
DO
GND
DI
DO
DI
DI
DO
DI DO
Figure 20: General Four-Wire Network Connection
wires). Note that the PDA7485 and PDA8485 have DIP switches that allow for two-wire connections without the need to externally wire the DO to the DI and the /DO to the /DI (see the converter section for complete details).
PDA8485
RS-485 DEVICE
GND
DO
GND
DATA
DO
DI
DATA
DI
Figure 21: General Two-Wire Network Connection
49
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Select Menu (
SElect
)
The
Select
menu is used to select the signal input conditioning function applied to the inputs (linear, square root, programmable exponent, or round horizontal tank), math function for A & B, constants, low-flow cutoff, and analog output programming.
Multi-point linearization is part of the linear function selection.
Signal Input Conditioning (
Functn
)
The
Function
menu is used to select the input-to-output transfer function applied to the input signal: linear, square root, programmable exponent, or round horizontal tank volume calculation. Multi-point linearization is part of the linear function selection.
Meters are set up at the factory for linear function with 2-point linearization. The linear function provides a display that is linear with respect to the input signal.
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ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Square Root Linearization (
Square
)
The square root function is used to calculate flow measured with a differential pressure transmitter. The flow rate is proportional to the square root of the differential pressure. Scale the meter so that the low input signal (e.g. 4 mA) is equal to zero flow and the high input signal (e.g. 20 mA) is equal to the maximum flow.
Programmable Exponent Linearization (
Prog E
)
The programmable exponent function is used to calculate open-channel flow measured with a level transmitter in weirs and flumes. The flow rate is proportional to the head height. Scale the meter so that the low input signal (e.g. 4 mA) is equal to zero flow and the high input signal (e.g. 20 mA) is equal to the maximum flow. This method works well for all weirs and flumes that have a simple exponent in the flow calculation formula. For weirs and flumes with complex exponents it is necessary to use a strapping table and the 32-point linearization of the meter.
Multi-Point Linearization (
Linear
)
Meters are set up at the factory for linear function with 2-point linearization. Up to 32 linearization points can be selected for each channel under the linear function. The multi-point linearization can be used to linearize the display for non-linear signals such as those from level transmitters used to measure volume in odd-shaped tanks or to convert level to flow using weirs and flumes with complex exponent.
Round Horizontal Tank Linearization (
rHt
)
This function is used to calculate volume in a round horizontal tank with flat ends. The volume is calculated based on the diameter and length of the tank. The tank’s dimensions can be entered in inches or centimeters; the meter automatically calculates the volume in gallons or liters. After entering the dimensions, complete the scaling process with the display values calculated by the meter. The meter can be re-scaled to display the volume in any engineering unit without the need to re-enter the dimensions again.
Note: After Scale is displayed continue pressing the Enter button until the meter completes the scaling of the input and display values.
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ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Changing the Volume from Gallons to Liters
In the above graphic, entering the 48" for the diameter and 120" for the length of the round horizontal tank, the meter automatically calculates that the volume of the tank is 940.02 gallons.
1. Convert gallons to liters
1 US gallon = 3.7854 L
940.02 gal = 3558.4 L
2. Go to the
Setup
menu and change the decimal point to 1 decimal.
3. Go to the
Program
–
Scale
menu and press Enter until dis 2
is shown on the Upper display.
4. Press Enter and change the display 2 value to 3558.4.
5. The meter is now displaying the volume in liters.
Note: The display can be scaled to display the volume in any engineering units.
Math Function (
math
)
The
Math
menu is used to select the math function that will determine the channel C value. These math functions are a combination of input channels A and B, and will display when channel C is selected in the
Display
menu.
The following math functions are available.
Function
Sunm
Display
Sum
Description
Channel C = (A+B+P)*F
Dif
difabs
Avg
nmulti
Divide
Hi-ab
Lo-ab
Drauw
uwAvg
ratio
Ratio2
Concen
Difference
Absolute difference
Average
Multiplication
Divide
Max of A or B
Min of A or B
Draw
Weighted avg.
Ratio
Ratio 2
Concentration
Channel C = (A-B+P)*F
Channel C = ((Absolute value of (A-B))+P)*F
Channel C = (((A+B)/2)+P)*F
Channel C = ((A*B)+P)*F
Channel C = ((A/B)+P)*F
C = ((High value of channel A or B)+P)*F
C = ((Low value of channel A or B)+P)*F
Channel C = ((A/B)-1)*F
Channel C = ((B-A)*F)+A
Channel C = (A/B)*F
C = ((B-A)/A)+P)*F
Channel C = (A/(A+B))*F
Math Constants (
Const
)
The
Math Constants
menu is used to set the constants used in channel C math. The math functions include input channel A and B, as well as the adder constant P, and factor constant F.
The
Adder
constant (P) may be set from -99.999 to 999.999.
The
Factor
constant (F) may be set from 0.001 to 999.999.
The chart on page 52 details the math functions that may be selected in the
Math Function
menu.
Low-Flow Cutoff (
CutofF
)
The low-flow cutoff feature allows the meter to be programmed so that the often-unsteady output from a differential pressure transmitter, at low flow rates, always displays zero on the meter.
The cutoff value may be programmed from 0 to 999999. The meter will display zero below the cutoff value. Programming the cutoff value to zero disables the cutoff feature.
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ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Analog Output Programming (
AoutPr
)
The
Analog Output Programming
menu is used to program the behavior of the 4-20 mA output. The following parameters and functions are programmed in this menu:
1. Source: Source for generating the 4-20 mA output
2. Overrange: Analog output value with display in overrange condition
3. Underrange: Analog output value with display in underrange condition
4. Break: Analog output value when loop break is detected
5. Max: Maximum analog output value allowed regardless of input
6. Min: Minimum analog output value allowed regardless of input
7. Calibrate: Calibrate the internal 4-20 mA source reference used to scale the 4-20 mA output
Analog Output Source
The analog output source can be based on either of the input channels (Ch-A, Ch-B), the math channel
(Ch-C), maximum stored value of either input channel (Hi-A, Hi-B), minimum stored value of either input channel (Lo-A, Lo-B), relay set points, or the Modbus input.
Analog Output Calibration
To perform the analog output calibration, it is recommended to use a milliamp meter with a resolution of at least 0.1 µA to measure the output current. The values saved internally during this procedure are used for scaling the 4-20 mA output in the
Setup
menu.
Programmable Function Keys User Menu (
user
)
The
User
menu allows the user to assign the front panel function keys F1, F2, and F3, the digital input F4
(a digital input located on the signal input connector), and up to eight additional digital inputs to access most of the menus or to activate certain functions immediately (e.g. reset max & min, hold relay states, etc.). This allows the meter to be greatly customized for use in specialized applications.
Up to eight digital outputs can be assigned to a number of actions and functions executed by the meter
(i.e. alarms, relay acknowledgement, reset max, min, or max & min, tare, and reset tare). The digital outputs can be used to trigger external alarms or lights to indicate these specific events.
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ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Function Keys & Digital I/O Available Settings
Refer to the following table for descriptions of each available function key or digital I/O setting.
Display Description Display Description
Rst Hi
Reset the stored maximum display values for all channels
Rst Lo
Reset the stored minimum display values for all channels
Rst HL
Reset the stored maximum & minimum display values for all channels
Ln1 Lo
Display minimum channel A display value on line 1
Ln1 HL
Display maximum & minimum channel A display values on line 1
Ln2 Hi
Display maximum channel B display value on line 2
Tare A
Capture tare and zero the display for channel A (A LED flashes
– same rate as M)*
Tare B
Capture tare and zero the display for channel B (B LED flashes
– same rate as M)*
Ln2 Lo
Display minimum Channel B display
LitHLC value on line 2
Ln2 HL
Display maximum & minimum channel B display values on line 2
Display maximum channel C display value on line 2
Rst tr
Reset captured tare and resume normal operation for both channels
A & B relay
Directly access the relay menu
Set 1
*
Directly access the set point menu for relay 1 (*through 8)
Rly d
Disable all relays until a button assigned to
enable relays
(
Rly E
) is pressed
Ln2 HC
Ln2 HC
Display minimum channel C display value on line 2
Display maximum & minimum channel C display values on line 2
F On 1
*
Force relay 1 (*through 4) into the on state. This function is used in conjunction with a digital input to achieve interlock functionality. See
page 43 for details about interlock
relays.
Rly E
Enable all relays to function as they have been programmed
O Hold
Hold current relay states and analog output as they are until a button assigned to
enable relays
(
Rly E
) is pressed
Contrl
Directly access the control menu disabl
Disable the selected function key or digital I/O
AcH
Acknowledge all active relays that are in a manual operation mode such as auto-manual or latching d Hold
Hold the current display value, relay states, and analog output momentarily while the function key or digital input is active. The process value will continue to be calculated in the background.
Reset nmenu rigHt
Directly access the reset menu
Mimic the menu button functionality
(digital inputs only)
Mimic the right arrow/F1 button functionality (digital inputs only)
D AbC
Scrolls values for A, B & C when activated. Keeps the last value for
10 seconds and then it returns to its assignment. Values are displayed on display line 1 and the corresponding channel and units on display line 2.
Ln1 Hi
Display maximum channel A display value on line 1 up
Mimic the up arrow/F2 button functionality (digital inputs only)
Enter
Mimic the enter/F3 button functionality (digital inputs only)
Alnm 1
*
Provide indication when alarm 1
(*through 8) has been triggered
(digital outputs only)
*
If math functions are displayed, the math function indicator LED “C” will flash when either A or B channel is using a tare value (net value).
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ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Tare ( tare A, tare B
)
The tare function zero’s out the display. In the case of scale weight, tare is used to eliminate container weight and provide net weight readings. There are two tare functions; Capture Tare for channel A and B, and Reset Tare. Display channel indicator letter flashes when a tare is used. It will flash until the tare is reset. lbs
0.2
lbs
0.0
lbs
0.2
Before tare After capture tare
After reset tare
Gross (without tare) and net (with tare) values can be viewed simultaneously. See page 32.
Internal Calibration (
ICAL
)
The use of calibrated signal sources is necessary to perform the internal calibration of the meter.
Check calibration of the meter at least every 12 months. Each input and input type must be recalibrated separately.
Notes:
1. If meter is in operation and it is intended to accept only one input type (e.g. 4-20 mA), recalibration of other input is not necessary.
2. Allow the meter to warm up for at least 15 minutes before performing the internal calibration procedure.
The
Internal calibration
menu is part of the
Advanced Features
menu.
1. Press and hold the Menu button for three seconds to access the advanced features of the meter.
2. Press the Up arrow button to scroll to the
Internal calibration
menu (
ICAL
) and press Enter.
3. Select channel A ( Ch-A ) or channel B ( Ch-b ) and press enter.
4. The meter displays either current calibration ( C CAL ) or voltage calibration ( v CAL ), according to the input setup. Press Enter to start the calibration process.
Example of Internal Calibration for current input:
5. The meter displays
low
input current message ( C lo ). Apply the low input signal and press Enter. The display flashes for a moment while the meter is accepting the low input signal.
6. After the display stops flashing, a number is displayed with the leftmost digit brighter than the rest.
The bright digit is the active digit that can be changed by pressing the Up arrow button. Press the
Right arrow button to move to the next digit.
7. Set the display value to correspond to the input signal being calibrated, typically 4.000 mA.
8. The display moves to the
high
input calibration (
C Hi
). Apply the high input signal and press Enter.
9. Set the display for the high input calibration, in the same way as it was set for the low input calibration, typically 20.000 mA.
The graphic shows the calibration of the current input. The voltage input is calibrated in a similar way.
Tips:
•
Low and high input signals can be any valid values within the range of the meter.
•
Observe minimum input span requirements between input 1 and input 2.
•
Low input should be less than high input signal.
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ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Error Message (
Error
)
An error message indicates that the calibration or scaling process was not successful.
After the error message is displayed, the meter reverts to input 2 during calibration or scaling and to input
1 during internal calibration, allowing the appropriate input signal to be applied or programmed.
The error message might be caused by any of the following conditions:
1. Input signal is not connected to the proper terminals, or it is connected backwards.
2. Wrong signal selection in
Setup
menu.
3. Minimum input span requirements not maintained.
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ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Meter
Operation
The meter is capable of accepting two input channels (A and B) of either current (0-20 mA, 4-20 mA) or voltage signals (0-5 V, 1-5 V, 0-10 V,
10 V) and displaying these signals in engineering units from -99999 to 999999 (
e.g.
a 4-20 mA signal could be displayed as -50.000 to 50.000).
A math function channel (C) is available to perform operations on channel A and B, with adder and factor constants, and display the results. Engineering units or tags may be displayed with these three channels.
The dual-line display can be customized by the user. Typically, the upper display is used to display the math channel C, while the lower display is used to alternate between displaying input channels A and B.
Additionally, the meter can be set up to display any input or math channel on the upper display and a unit or tag on the lower display. The relays and analog output can be programmed to operate based on any input or math channel.
Front Panel Buttons Operation
Button Symbol Description
or
Press to enter or exit Programming Mode, view settings, or exit max/min readings
or
Press to reset max/min readings or other parameter/function assigned through the
User
menu
or
Press to display max/min readings for channel A or other parameter/function assigned through the
User
menu
or
Press to acknowledge relays or other parameters/function assigned through the
User
menu
SafeTouch
®
Buttons
The ProtEX-MAX is equipped with four sensors that operate as through-glass buttons so that it can be programmed and operated without removing the cover (and exposing the electronics) in a hazardous area.
These buttons can be disabled for security by selecting DISABLE on the switch labeled NO-CONTACT
BUTTONS located on the connector board.
To actuate a button, press one finger to the glass directly over the marked button area. Then retract finger more than three inches from the glass before pressing the next button. When the cover is removed, the four mechanical buttons located next to the sensors are used. The sensors are disabled when a mechanical button is pressed and will automatically be re-enabled after 60 seconds of inactivity.
The SafeTouch Buttons are designed to filter normal levels of ambient interference and to protect against false triggering, however, it is recommended that the SafeTouch Buttons be disabled (slide switch to
LOCK) if there is an infrared interference source in line-of-sight to the display.
The SafeTouch Buttons are configured by default to duplicate the function of the front panel mechanical pushbuttons associated with the integrated meter. The symbols by each SafeTouch button correspond to a mechanical button as shown in the above table.
SafeTouch Button Tips:
•
To the extent possible, install the display facing away from sunlight, windows, reflective objects and any sources of infrared interference.
•
Keep the glass window clean.
•
Tighten the cover securely.
•
Use a password to prevent tampering.
WARNING
Take caution when cleaning the window glass as it may result in unintentional
SafeTouch button events. Only clean the
ProtEX-MAX when the system is safely shut down, and inspect the ProtEX-MAX for proper configuration prior to system restart.
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ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
F4 Operation
A digital input, F4, is standard on the meter. This digital input is programmed identically to function keys
F1, F2, and F3. The input is triggered with a contact closure to COM, or with an active low signal. During operation, F4 operates according to the way is has been programmed in the
Advanced Features
– User
menu.
Maximum/Minimum Readings
The max & min readings (peak & valley) reached by the process can be displayed either continuously or momentary:
1. Display briefly by assigning to the F1-F3 function keys or to the digital inputs in the
User
menu.
2. Display continuously by assigning either display to max/min through the
Display
menu.
Any of the F1-F3 function keys (buttons) and the digital inputs can be programmed to reset the max & min readings. The meters are set at the factory to display the max reading by pressing the Up arrow/F2 button and to use the Right arrow/F1 button to access the
Reset
menu.
To display max and min channel A reading using function key with factory defaults:
1. Press Up arrow/F2 button to display minimum reading of channel A since the last reset/power-up.
The display will then display the maximum reading of channel A since the last reset/power-up.
2. Press the Up arrow/F2 button again to display the minimum reading of channel A since the last reset/power up.
3. To reset max/min press Right arrow/F1 button to access the Reset menu. The max & min displays are reset to actual values.
4. Press Menu to exit max/min display reading.
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ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Troubleshooting
The rugged design and the user-friendly interface of the meter should make it unusual for the installer or operator to refer to this section of the manual. However, due to the many features and functions of the meter, it’s possible that the setup of the meter does not agree with what an operator expects to see.
If the meter is not working as expected, refer to the
Diagnostics
menu and recommendations below.
Diagnostics Menu (
diag
)
The
Diagnostics
menu is located in the
Advanced Features
menu, to access
Diagnostics
menu see
This menu allows the user to test the functionality of all the meter LEDs, check the meter’s software and version information, and erase the MeterView Pro software installation files from the meter. Press the
Enter button to view the settings and the Menu button to exit at any time.
For a description of the diagnostic messages,
Determining Software Version
To determine the software version of a meter:
1. Go to the
Diagnostics
menu ( diAG ) and press Enter button.
2. Press Up arrow button and scroll to Information menu (
Info
).
3. Press Enter to access the software number (
SFT
) and version (
UER
) information. Write down the information as it is displayed. Continue pressing Enter until all the information is displayed.
4. The meter returns to Run Mode after displaying all the settings.
Reset Meter to Factory Defaults
When the parameters have been changed in a way that is difficult to determine what’s happening, it might be better to start the setup process from the factory defaults.
Instructions to load factory defaults:
1. Enter the
Advanced Features
2. Press Up arrow to go to
Diagnostics
menu
3. Press and hold Right arrow for three seconds, press
Enter when display flashes reset
.
Note: If Enter is not pressed within three seconds, the display returns to Run Mode.
4. The meter goes through an initialization sequence (similar as on power-up), and loads the factory default settings.
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ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Factory Defaults & User Settings
The following table shows the factory setting for most of the programmable parameters on the meter.
Parameter Display Default Setting Parameter Display Default Setting
Input type
Input type, channel A
Input type, channel B
Unit
Unit, channel A
Unit, channel B
Unit, channel C
Number of points
Number of points, ch A
Number of points, ch B
Scaling, (channel A)
Input 1, channel A
Display 1, channel A
Input 2, channel A
Display 2, channel A
Scaling (channel B)
Input 1, channel B
Display 1, channel B
Input 2, channel B
Display 2, channel B
Math, channel C
Adder (constant P)
Factor (constant F)
Filter
Filter, channel A
Filter, channel B
Bypass, channel A
Bypass, channel B
Round
Cutoff
Cutoff value, channel A
Cutoff value, channel B
Display assignment
Display line 1
Display line 2
Display intensity
Relay 1 assignment
Relay 1 action
Relay 1 set point
Relay 1 reset point
Relay 2 assignment
Input
Ch-A
Ch-B
4-20 mA
4-20 mA unit
Ch-A mA-A
Ch-B
Ch-C
No pts mA-b mA-C
Ch-A
Ch-B
Scal a
2
2
InP 1
4.000 mA
Dis 1
4.000
InP 2
20.000 mA
Dis 2
20.000
Scal b
InP 1
4.000 mA
Dis 1
4.000
InP 2
20.000 mA
Dis 2
20.000
Sum
Sum
Adder
0.000
Factor
1
Filter
Ch-A
70
Ch-B
70 bypass
0.2 bypass
0.2
Round
1
Cutoff
Ch-a
0.000 (disabled)
Ch-b
Dsplay
0.000 (disabled)
D Ch-A
Channel A d Ch-B
Channel B d-Inty
8
Ch-A
Channel A
Act 1
Automatic
Set 1
1.000
RSt 1
0.500
Ch-A
Channel A
Relay 2 action
Relay 2 set point
Relay 2 reset point
Relay 3 assignment
Relay 3 action
Relay 3 set point
Relay 3 reset point
Relay 4 assignment
Relay 4 action
Relay 4 set point
Relay 4 reset point
Fail-safe relay 1
Fail-safe relay 2
Fail-safe relay 3
Fail-safe relay 4
On delay relay 1
Off delay relay 1
On delay relay 2
Off delay relay 2
On delay relay 3
Off delay relay 3
On delay relay 4
Off delay relay 4
Loop break relay 1
Loop break relay 2
Loop break relay 3
Loop break relay 4
Display 1 analog out
Output 1 value
Display 2 analog out
Output 2 value
Source analog output
Overrange output
Underrange output
Loop break output
Maximum output
Minimum output
Slave ID (Address)
Baud rate
Transmit delay
Parity
Act 2
Automatic
Set 2
2.000
RSt 2
1.500
Ch-A
Channel A
Act 3
Automatic
Set 3
3.000
RSt 3
2.500
Ch-A
Channel A
Act 4
Automatic
Set 4
4.000
RSt 4
3.500
Fls 1
Off
Fls 2
Off
Fls 3
Off
Fls 4
Off
On 1
0.0 sec
Off 1
0.0 sec
On 2
0.0 sec
Off 2
0.0 sec
On 3
0.0 sec
Off 3
0.0 sec
On 4
0.0 sec
Off 4
0.0 sec ignore
Ignore ignore
Ignore ignore
Ignore ignore
Ignore
Dis 1
4.000
Out 1
4.000 mA
Dis 2
20.000
Out 2
20.000 mA
Source
Channel A
O-rang
21.000 mA u-rang
3.000 mA break
3.000 mA mAx min
23.000 mA
3.000 mA
SlavId
247 baud
9600
Tr dly
50 ms
Parity
Even
60
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Parameter
Byte-to-byte timeout
F1 function key
F2 function key
F3 function key
F4 function
(digital input)
Digital input 1
Digital input 2
Digital input 3
Display Default Setting
t-byt
010 (0.1 sec)
F1
Reset max & min
F2
F3
Upper Max & Min
Acknowledge relays
F4
Acknowledge relays
DI 1
DI 2
DI 3
Menu
Right arrow
Up arrow
Parameter
Digital input 4
Digital output 1
Digital output 2
Digital output 3
Digital output 4
Password 1
Password 2
Password 3
Display Default Setting
DI 4
DO 1
DO 2
DO 3
DO 4
Pass 1
Pass 2
Pass 3
Enter
Alarm 1
Alarm 2
Alarm 3
Alarm 4
000000
(unlocked)
000000
(unlocked)
000000
(unlocked)
61
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Troubleshooting Tips
Symptom
SafeTouch buttons do not respond
Serial Communications Power LED
Indicator is off
If only the TX (or DATA IN) data status LED is flashing when serial communications attempted
Check/Action
If mechanical button was pushed. The SafeTouch buttons will be reenabled automatically
60 seconds
after the last button push.
If slide switch on connector board is in DISABLE position, switch to
ENABLE.
Strong direct sunlight may interfere with SafeTouch button operation. It is recommended to operate the buttons by standing so as to block direct sunlight.
1. Check modular cable connection
2. Check power to the device
1. Check serial cable
2. Check protocol selected on device
3. Check instrument address & baud rate
4.
Check program address & baud rate
If both data status LEDs (TX and RX) are off when trying to communicate
Communications slow
Power LED is off
Random communication errors
Remove all unnecessary cables and instruments from the bus. Try getting the system to work with only one device (to ease troubleshooting) and then expand the system one device at a time.
Increase the baud rate
1. Increase the TX delay time
2. Decrease the baud rate
1. Check modular cable connection
2. Check power to instrument
Check power at power connector
Meter is password-protected, enter correct six-digit password to unlock
No display at all
Not able to change setup or programming, Locd is displayed
Meter displays error message during calibration ( Error )
Meter displays
1.
999999
2. -99999
Display is unstable
Display response is too slow
Display reading is not accurate
1. Check signal connections
2. Check input selected in
Setup
menu
3. Check minimum input span requirements
1. Check input selected in
Setup
menu
2. Check corresponding signal at Signal connector
1. Check input signal stability and value
2. Check display scaling vs. input signal
3. Check filter and bypass values (increase)
Check filter and bypass values
1. Check signal input conditioner selected: Linear, square root, etc.
2. Check scaling or calibration
Check display assignment, it might be displaying max, min, or set point. Display does not respond to input changes, reading a fixed number
Display alternates between
1.
Hi
and a number
2.
Lo
and a number
Relay operation is reversed
Press Menu to exit max/min display readings.
Relay and status LED do not respond to signal
1. Check fail-safe in
Setup
menu
2. Check wiring of relay contacts
1. Check relay action in
Setup
menu
2. Check set and reset points
Relays in manual control mode or relay interlock switches opened. Flashing relay status LEDs
If the display locks up or the meter does not respond at all
Cycle the power to reboot the microprocessor.
Other symptoms not described above Call Technical Support for assistance.
62
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
Service
WARNINGS
•
Installation and service should be performed only by trained service personnel. Service requiring replacement of internal sub-components must be performed at the factory.
•
Disconnect from supply before opening enclosure. Keep cover tight while circuits are alive. Conduit seals must be installed within 18"
(450mm) of the enclosure.
•
Verify that the operating atmosphere of the instrument is consistent with the appropriate hazardous locations certifications.
•
If the instrument is installed in a high voltage environment and a fault or installation error occurs, high voltage may be present on any lead
•
Read all product labels completely and follow all instructions and requirements listed on the labels for installation or service.
If the enclosure is sound and undamaged, then only the internal electronics housing will need to be returned to the factory for service. Contact the factory for RMA number and return instructions.
Mounting Dimensions
All units: inches (mm)
Figure 22: Enclosure Dimensions
– Front
View
Figure 23: Enclosure Dimensions
– Side
Cross Section View
63
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
This Page Intentionally Left Blank
64
EU Declaration of Conformity
Issued in accordance with ISO/IEC 17050-1:2004 and ATEX Directive 2014/34/EU.
We,
Precision Digital Corporation
233 South Street
Hopkinton, MA 01748 USA
as the manufacturer, declare under our sole responsibility that the product(s),
Model PD8 ProtEX-MAX Series
to which this declaration relates, is in conformity with the European Union Directives shown below:
2014/35/EU
2014/34/EU
2014/30/EU
2011/65/EU
Low Voltage Directive
ATEX Directive
EMC Directive
RoHS Directive
This conformity is based on compliance with the application of harmonized or applicable technical standards and, when applicable or required, a European Union notified body certification.
Standards:
EN 55022:2007
EN 60079-1:2007
EN 61000-6-2:2005
EN 61010-1:2001
EN 60079-0:2009
EN 60079-31:2008
EN 61000-6-4:2007
EN 61326:2006
The standards EN 55022:2007, EN 60079-0:2009, EN 60079-1:2007, EN 60079-31:2008, EN 61000-6-
4:2007, EN 61010-1:2001, and EN 61326:2006 are no longer harmonized. The requirements of these standards have been checked against the harmonized standard EN 55022:2010, EN 60079-
0:2012+A11:2013, EN 60079-1:2014, EN 60079-31:2014, EN 61000-6-4:2007+A1:2011, EN 61010-
1:2010, and EN 61326:2013 and there were no major technical changes affecting the latest technical knowledge for the products listed above.
EC Type Examination Certificate:
Sira 12ATEX1182
Product Markings:
II 2 G D
Ex d IIC T* Gb
Ex tb IIIC T90°C Db IP68
Tamb = -40°C to +*°C (*T5 = 65°C, *T6 = 60°C)
ATEX Notified Body for EC Type Examination Certificate:
Sira Certification Service, NB 0518
Unit 6, Hawarden Industrial Park
Hawarden, Deeside, CH5 3US, UK
ATEX Quality Assurance Notification No.:
SIRA 10 ATEX M462
ATEX Notified Body for Quality Assurance:
Sira Certification Service, NB 0518
Unit 6, Hawarden Industrial Park
Hawarden, Deeside, CH5 3US, UK
Signed for and on behalf of Precision Digital Corporation:
Name:
Company:
Title:
Date:
Jeffrey Peters
Precision Digital Corporation
President
02/12/2018 Document No: DoC PD8 {021218}
ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
How to Contact Precision Digital
•
For Technical Support please
Call: (800) 610-5239 or (508) 655-7300
Fax: (508) 655-8990
Email: [email protected]
•
For Sales Support or to place an order please contact your local distributor or
Call: (800) 343-1001 or (508) 655-7300
Fax: (508) 655-8990
Email: [email protected]
•
For the latest version of this manual please visit
www.predig.com
PRECISION DIGITAL CORPORATION
233 South Street
• Hopkinton MA 01748 USA
Tel (800) 343-1001
• Fax (508) 655-8990
www.predig.com
LIM8-6060_D
SFT065 Ver 4.010 & up
12/18
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