Omega | DPF700 | Owner Manual | Omega DPF700 Owner Manual

Omega DPF700 Owner Manual
TM
User’s Guide
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DPF700
Ratemeter/Totalizer/Controller
omega.com info@omega.com
U.S.A.
Headquarters:
Servicing North America:
Omega Engineering, Inc.
Toll-Free: 1-800-826-6342 (USA & Canada only)
Customer Service: 1-800-622-2378 (USA & Canada only)
Engineering Service: 1-800-872-9436 (USA & Canada only)
Tel: (203) 359-1660
Fax: (203) 359-7700
e-mail: info@omega.com
For Other Locations Visit omega.com/worldwide
The information contained in this document is believed to be correct, but OMEGA accepts no liability for any errors it
contains, and reserves the right to alter specifications without notice.
PREFACE
PREFACE
MANUAL OBJECTIVES
This manual shows you how to set up and use the Ratemeter/ Totalizer/ Controller.
In this manual we provide procedures for:
*
*
*
*
*
*
*
*
*
*
*
*
Connecting power to the meter
Mounting the meter
Checking main board power jumpers
Selecting main menu items
Selecting sub-menu items
Saving changes
Disassembly
Using the rate measurement mode
Using the totalizer mode
Installing and using an RS-232 option board
Installing and using an analog output board
Installing and using a dual-relay option board
i
TABLE OF CONTENTS
Table A-1. Sections of the Manual
If you want to read about:
ii
Refer to section
Unpacking and safety considerations
1
Introduction
Meter description; features; available
models; front-panel; back of the meter
2
About the Meter
Powering the meter; sensor connections;
main board power jumpers; power
provisions; selecting main menu & submenu items; mounting the meter
3
Getting Started
Line frequency measurement; RPM
measurement
4
Rate Measurement
Using the meter as a totalizer or a
stopwatch; down-counting
5
The Totalizer Mode
Main menu & sub-menu items; meter
configuration detail
6
Reference Tables
Problems/actions
7
Troubleshooting
RS-232 option board
8
RS-232 Option
Analog output board
9
Analog Output
Dual-relay option board
10
Dual-Relay Option
Standard dimensions; general
information; input characteristics, display,
time base, rate function, totalizer & power
11
Meter Specifications
Default values
12
Factory Default Values
NOTES, WARNINGS AND CAUTIONS
Information that is especially important to note is identified by these labels:
•
•
•
•
Note ☞
NOTE
WARNING
CAUTION
IMPORTANT
NOTE: provides you with information that is important to successfully setup
and use the Programmable Digital Meter.
CAUTION or WARNING: tells you about the risk of electric shock.
CAUTION, risk of danger: tells you of circumstances or practices that can
effect the meter's functionality and must refer to accompanying documents.
iii
TABLE OF CONTENTS
Section
Page
1
1.1
1.2
Introduction ..........................................................................................................1
Unpacking .................................................................................................................1
Safety Considerations ...............................................................................................2
2
2.1
2.2
2.3
2.4
2.5
About the Meter...................................................................................................3
Description ................................................................................................................3
Features ....................................................................................................................3
Main Board ................................................................................................................4
Front of the Meter......................................................................................................6
Back of the Meter ......................................................................................................8
3
3.1
3.2
3.3
3.3.1
3.3.2
3.4
3.5
3.6
3.7
Getting Started ..................................................................................................11
Powering the Meter .................................................................................................11
Connecting to Commonly Used Sensors ................................................................12
Main Board Power Jumpers ....................................................................................15
ac Power Failure Provision......................................................................................16
dc Power/Backup Battery Provision ........................................................................16
Mounting the Meter .................................................................................................17
Selecting Main Menu Items .....................................................................................18
Selecting Sub-Menu Items ......................................................................................18
Saving Changes ......................................................................................................19
4
4.1
4.2
Rate Measurement ...........................................................................................20
Line Frequency Measurement ................................................................................20
Revolutions per Minute (RPM) Measurement Example ..........................................20
5
5.1
5.2
5.3
The Totalizer Mode...........................................................................................23
Totalizer Example ....................................................................................................23
Stopwatch in the Totalizer Mode .............................................................................25
Down Counting........................................................................................................25
6
Reference Tables ..............................................................................................26
7
Troubleshooting ................................................................................................31
iv
TABLE OF CONTENTS
Section Page
8
8.1
8.2
8.3
8.3.1
8.3.2
8.3.3
8.4
8.5
8.6
8.6.1
8.6.2
8.7
8.8
8.9
RS-232 Option ....................................................................................................32
Installing the RS-232 Option Board.........................................................................32
Remote Programming .............................................................................................34
ASCII Output ...........................................................................................................35
9-Character Format .................................................................................................35
8-Character Format .................................................................................................36
Setup Data ..............................................................................................................36
ASCII Input ..............................................................................................................41
Interfacing Examples...............................................................................................44
Programming Considerations..................................................................................46
Communication Rate...............................................................................................46
Modem Operation....................................................................................................46
Parity Checking .......................................................................................................47
Timing......................................................................................................................47
Programming Example............................................................................................48
9
9.1
9.2
9.3
Analog Output ....................................................................................................49
Installing the Analog Output Board..........................................................................49
Setting Up the Analog Output Board .......................................................................50
Electrical Connections and Specifications ..............................................................53
10
10.1
10.2
10.3
Dual-Relay Option .............................................................................................54
Installing the Dual-Relay Option Board ...................................................................54
Setting up the Dual-Relay Option Board .................................................................55
Electrical Connection and Specification ..................................................................57
11
11.1
11.2
11.3
11.4
11.5
11.6
11.7
11.8
11.9
11.10
11.11
11.12
11.13
Meter Specifications........................................................................................58
Standard Dimensions ..............................................................................................58
Disassembly ............................................................................................................59
General Information.................................................................................................59
Input Characteristics................................................................................................60
Display.....................................................................................................................60
Time Base ...............................................................................................................61
Rate Function ..........................................................................................................61
Totalizer ...................................................................................................................61
Analog Output Option Board ...................................................................................62
Relay Output Option Board .....................................................................................62
Power ......................................................................................................................62
Environment ............................................................................................................63
Mechanical ..............................................................................................................63
12
12.1
Factory Default Values ...................................................................................64
Configuration Defaults.............................................................................................65
Approvals Information .................................................................................... 66
v
LIST OF FIGURES
Figures
2-1
2-2
2-3
3-1
3-2
3-3
3-4
3-5
3-6
3-7
3-8
3-9
3-10
3-11
8-1
8-2
8-3
8-4
8-5
8-6
8-7
8-8
8-9
8-10
8-11
8-12
8-13
8-14
9-1
9-2
10-1
10-2
10-3
10-4
11-1
11-2
vi
Page
Main Board ..................................................................................................................................5
Front-Panel ..................................................................................................................................6
Back View of the Meter................................................................................................................9
Electrical Wiring for ac Connection ............................................................................................11
3-Wire Sensor NPN Open Collector Output ..............................................................................12
TTL/5 V CMOS Output ..............................................................................................................12
3-Wire Sensor PNP Open Collector Output...............................................................................13
2-Wire Magnetic Pickup (Low Level Signals) ............................................................................13
2-Wire NAMUR Sensor .............................................................................................................14
2-Wire Contact Closure .............................................................................................................14
Main Board Jumpers (W1, W2, W3) ..........................................................................................15
dc Power/Battery Backup ..........................................................................................................16
Meter - Exploded View...............................................................................................................17
Panel Cut-Out ............................................................................................................................17
Installing the RS-232 Option Board ...........................................................................................32
Protective Back Panel ...............................................................................................................33
ASCII Output 9-Character Message..........................................................................................35
ASCII Output 8-Character Message..........................................................................................36
Analog Out Scale Storage Format.............................................................................................38
Analog Out Offset Storage Format ............................................................................................38
Storage Format..........................................................................................................................38
Binary Value...............................................................................................................................39
Setup Configuration...................................................................................................................39
Decimal Point Setup ..................................................................................................................40
Totalizer Function Setup ............................................................................................................40
Meter Serial Port to a D-9 Connector ........................................................................................44
Meter Serial Port to a D-25 Connector ......................................................................................45
Modem Concept ........................................................................................................................46
Installing the Analog Output Board ............................................................................................49
Electrical Wiring for Analog Output Connection.........................................................................53
Dual-Relay Option Board...........................................................................................................54
Setpoint Example Illustration .....................................................................................................56
Electrical Wiring for Relay Connections ....................................................................................57
Dual-Relay Connections............................................................................................................57
Standard Dimensions ................................................................................................................58
Panel Cut-Out ............................................................................................................................58
LIST OF TABLES
Table
A-1
2-1
2-2
2-3
3-1
3-2
6-1
6-2
6-3
7-1
8-1
8-2
8-3
8-4
8-5
10-1
12-1
12-2
Page
Sections of the Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii
Main Board Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
S1 Dip Switch Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
S1-S10 Switch Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Electrical Connection for ac Power Detail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Signal Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Main Menu Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Sub-Menu Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Meter Configuration Detail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Hex Character/Bit Pattern Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Set up Order Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Memory Addresses Accessed by
Single 'GET' and Single 'PUT' Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Meter to IBM PC - D-9 or D-25 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Baud Rate Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Setpoint Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Factory Default Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Configuration Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
vii
NOTES
viii
INTRODUCTION
1
1.1 UNPACKING
Remove the Packing List and verify that all equipment has been received. If there are any
questions about the shipment, use the phone number for the Customer Service Department
nearest you.
Upon receipt of shipment, inspect the container and equipment for any signs of damage. Take
particular note of any evidence of rough handling in transit. Immediately report any damage to
the shipping agent.
Note ☞
The carrier will not honor any claims unless all shipping material is saved for their
examination. After examining and removing contents, save packing material and carton
in the event reshipment is necessary.
Verify that you receive the following items in the shipping box:
QTY
DESCRIPTION
1
Low-Cost Ratemeter/Totalizer/Controller with all applicable connectors attached.
1
Owner's Manual
1
Set of Mounting Brackets
Note ☞
If you order a configured meter with options, you will receive the meter with option
boards installed. Refer to Table 2-1 for more information on options.
1
1
1.2
INTRODUCTION
SAFETY CONSIDERATIONS
This device is marked with the international caution symbol. It is important to read this
manual before installing or commissioning this device as it contains important information
relating to Safety and EMC (Electromagnetic Compatibility).
Unpacking & Inspection
Note ☞ Unpack the instrument and inspect for obvious shipping damage. Do not attempt to operate
the unit if damage is found.
This instrument is a panel mount device protected in accordance with EN 61010-1 (safety
requirement standard of electrical equipment for measurement, control and laboratory).
Installation of this instrument should be done by Qualified personnel. In order to ensure safe
operation, the following instructions should be followed.
This instrument has no power-on switch. An external switch or circuit-breaker shall be included
in the building installation as a disconnecting device. It shall be marked to indicate this function,
and it shall be in close proximity to the equipment within easy reach of the operator. The switch
or circuit-breaker shall not interrupt the Protective Conductor (Earth wire), and it shall meet the
relevant requirements of IEC 947–1 and IEC 947-3 (International Electrotechnical
Commission). The switch shall not be incorporated in the mains supply cord.
Furthermore, to provide protection against excessive energy being drawn from the mains
supply in case of a fault in the equipment, an overcurrent protection device shall be installed.
The Protective Conductor must be connected for safety reasons. Check that the power
cable has the proper Earth wire, and it is properly connected. It is not safe to operate this
unit without the Protective Conductor Terminal connected.
• Do not exceed voltage rating on the label located on the top of the instrument housing.
Note ☞ • Always disconnect power before changing signal and power connections.
•
•
•
•
Do not use this instrument on a work bench without its case for safety reasons.
Do not operate this instrument in flammable or explosive atmospheres.
Do not expose this instrument to rain or moisture.
Unit mounting should allow for adequate ventilation to ensure instrument does not exceed
operating temperature rating.
• Use electrical wires with adequate size to handle mechanical strain and power
requirements. Install without exposing bare wire outside the connector to minimize
electrical shock hazards.
EMC Considerations
• Whenever EMC is an issue, always use shielded cables.
• Never run signal and power wires in the same conduit.
• Use signal wire connections with twisted-pair cables.
• Install Ferrite Bead(s) on signal wires close to the instrument if EMC problems persist.
Failure to follow all instructions and warnings may result in injury!
2
ABOUT THE METER
2
2.1 DESCRIPTION
The meter is a fully programmable ratemeter/ totalizer/ controller with six-digit resolution for
totalizing input pulses or rate measuring.
Alphanumeric display prompts make it easy to program with front-panel buttons. You may use a
personal computer to program the meter and monitor the display data using the RS-232 option.
You may store the program setup in the nonvolatile memory for recall upon demand or at poweron.
The crystal timebase is electronically calibrated. There are no internal adjustments and
calibration is done without opening the case. Available options include field-installable dual-relay
option card, RS-232 and analog output cards.
2.2 FEATURES
The following is a list of features:
*
*
*
*
*
*
*
*
*
6-digit, single input
NEMA 4 / Type 4 Front Bezel
Display of any engineering unit
Front-panel scaling
0.5 Hz to 30 kHz frequency inputs
Signal conditioner standard for low level inputs
DIP switch input selection
Sensor excitation of 5, 8.2 and 12.4 Vdc
Front-panel programmable as rate meter or totalizer
For more detailed information on meter features, refer to Tables 6-1 and 6-2.
3
2
ABOUT THE METER
2.3 MAIN BOARD
Table 2-1 details information for the S2, S3, and S4 jumpers. The S2 jumper has 3 possible
positions: A, B or C. Factory defaults are in bold and italics. Figure 2-1 illustrates where these
jumpers are located on the main board.
Table 2-1. Main Board Jumpers
Jumper/
Switch
Position:
Installed
S2
S2-A
Scale, offset, setpoints and decimal points are unlocked.
Everything else is locked.
S2-B
Everything is unlocked.
S2-C*
Description
Everything is unlocked, except for analog
output parameters.
Removed
In the rate mode, meter shows "SPLO" and "SPHI" only (if
the relay option board is installed). In the totalizer mode,
meter shows the OFFSEt, SPLO and SPHI - everything
besides the relays are locked out. In either mode, the meter
stores changes in the nonvolatile memory automatically.
S3
S3-A
Removed
Enables front-panel buttons.
Disables front-panel buttons.
S4
S4
Removed
Enables RECALL button.
Disables RECALL button.
Note ☞ * For units with analog output option, S2-B is factory default, not S2-C.
4
2
ABOUT THE METER
2.3
MAIN BOARD (Continued)
S4 S3
A
A
S2
C B
A
DI
SP
LA
YB
OA
S2
RD
S3
S4
D
AIN
1
2
B
J7
J6
M
TB1
3
J1
TB2
1
R
OA
2
3
4
5
J5
J3
6
12
OP
34
EN
56
78
S1
91
J4
0
Figure 2-1. Main Board
5
2
ABOUT THE METER
2.4 FRONT OF THE METER
Figure 2-2 shows each part of the front of the meter.
Figure 2-2. Front-Panel
METER DISPLAY:
Digital LED display
-.9.9.9.9.9.
or 9.9.9.9.9.9. 6-digit 7-segment,
0.56" high LED display with programmable
decimal point.
METER BUTTONS
RECALL Button
To initialize (hard reset) the meter, press the RECALL and RESET buttons simultaneously. The
meter momentarily shows the program revision letter and mode (totalizer or rate). The meter then
shows the last stored (saved) program in the active (volatile) memory.
6
ABOUT THE METER
2.4
2
FRONT OF THE METER (Continued)
£ SET Button
Press this button to modify the flashing function, number value or decimal point (sub-menu only).
For example, press the £ SET button to toggle between the totAL (totalizer) and rAte (rate)
modes. Once the correct function, number value or decimal point shows, press the MENU
button to enter the change into the active (volatile) memory.
¢ ADV Button
Press this button to show the sub-menus and values for a selected menu item. The meter shows
values with left-most digit flashing. Press the ¢ ADV button to move the flashing item from left to
right through the digital display and the £ SET button to change the flashing item's value.
MENU Button
Press this button to show main menu items (refer to Section 6 for more information). The meter
does not show locked out (bypassed) items. The S2 and S3 jumpers determine lock out status.
RESET Button
Press this button to reset a latched alarm. Also, if you are in the totalizer mode, press this button
to reset the counter and begin counting from the offset. If you are in the setup menu (in either
mode) the meter returns to the run mode and makes measurements with the latest updated
menu items.
7
2
ABOUT THE METER
2.5 BACK OF THE METER
Table 2-3 shows S1 positions for different types of transducer signals and excitation. You may
change default settings via the front-panel buttons.
Table 2-2. S1 Dip Switch Positions
(Factory defaults are bold and in italics)
Transducer Type
(Connect to TB2-2 & TB2-3)
Close the Following
S1 Positions:
5 V CMOS
S1-4, S1-1
TTL
S1-4, S1-1
NPN Open Collector
S1-4, S1-7
PNP Open Collector
S1-4, S1-6
NAMUR
S1-4, S1-2, S1-6
Contact Closure to RTN
S1-4, S1-5, S1-6
Contact Closure to EXC
S1-4, S1-5, S1-6
Low Level Signal (Magnetic Pickup)
S1-3
Low Level Signal When Average is Positive
S1-4, S1-3
Excitation Output
(Available on TB2-1)
5 V @ 50 mA max
S1-1 Close
8.2 V @ 70 mA max*
S1-2 Close
12.4 V @ 100 mA max*
S1-1 and
S1-2 Open
* Line voltage range is limited to 115/230 ±10% for excitation currents more than 50 mA.
8
ABOUT THE METER
2
2.5 BACK OF THE METER (Continued)
Figure 2-3 shows the connector label depicting the back view of the meter.
Figure 2-3. Connector Label
!
WARNING: Incorrect power input can damage the meter.
9
2
ABOUT THE METER
Table 2-3. S1 - S10 Switch Functions
(Factory defaults: bold & italics)
Jumper/
Switch
Status
Description
S1-1
S1-2
Open
Closed
Excitation output is set to 8.2 V.
S1-1
S1-2
Open
Open
Excitation output is set to 12.4 V.
S1-1
S1-2
Closed
Open
Excitation output is set to 5.0 V.
S1-3
Open
Closed
High hysteresis = 1.5 V.
Low hysteresis = 20 mV.
S1-4
Open
Closed
Threshold is normal.
Threshold is shifted to positive.
S1-5
Open
Closed
No low pass filter.
12 Hz low pass filter for contact closure.
S1-6
Open
Closed
No pull-down resistor.
1.0 K �pull-down resistor.
S1-7
Open
Closed
243K pull-up to +excitation.
3K pull-up resistor to excitation.
S1-8
Open
Closed
Trigger edge = Negative (high to low transition).
Trigger edge = Positive (low to high transition).
S1-9
Open
Closed
No signals internally connects to the input.
Twice line frequency signal internally connects
to the input.
S1-10
Open
Detects an ac power loss.
(For more information refer to Section 3.3)
Maintains digital display during a dc power operation.
Closed
10
3
GETTING STARTED
3.1 POWERING THE METER
1. Set the S1 dip switches according to Table 2-3.
2. Connect input signal (refer to Section 3.2 for commonly used sensors).
3. Connect the proper voltage to the power screw terminal (TB1). The meter shows the
programmed function (default is rAtE mode).
Table 3-1. ac Power Detail
Connector
TB1-1
TB1-2
TB1-3
Description
~ ac Line
~ ac Neutral
~ ac Earth Ground
Wire Colors
Europe
USA
Brown
Black
Blue
White
Green/Yellow
Green
Table 3-2. Signal Connector
Connector
TB2-1
TB2-2
TB2-3
TB2-4
TB2-5
TB2-6
*
**
Connection From Meter
Excitation Output (5 V, 8.2 V or 12.4 Vdc)*
Signal Input*
Signal Return
Reset Input (active when tied to TB2-3)
External Gate Input**
Backup Battery (positive connection, use TB2-3 for return).
Refer to Table 2-3, S1 DIP Switch Positions.
Normally used in timing applications, not rate applications. Refer to Section 5.2
(Stopwatch in the Totalizer Mode) for more information
TB1
1
LINE
NEUTRAL
EARTH
SWITCH
2
TB2
3
1
3
4
5
FUSE
�AC Power
(L) LINE
(N) NEUTRAL
�
2
GREEN WIRE
�
EARTH GROUND
!
Check for proper Earth grounding in the power
distribution system (single phase).
Figure 3-1. Electrical Connection for ac Power
11
3
GETTING STARTED
3.2 CONNECTING TO COMMONLY USED SENSORS
TB2
EXC
1
EXC OUT
OUT
2
SIG IN
RTN
3
12.4V
SIG RTN
4
RST IN
5
EXT GATE
6
BATTERY
EXCITATION= 12.4V
OPEN
3K PULL UP RESISTOR TO EXC
CLOSED
POSITIVE THRESHOLD
1
2
3
4
5
6
7
8
9
10
OPEN
OPEN
OPEN
CLOSED
OPEN
OPEN
CLOSED
OPEN
OPEN
OPEN
S1
Figure 3-2. 3-Wire
Figure 3-2. 3-Wire Sensor with NPN Open Collector Output
TB2
TB2
1
EXC OUT
OUTPUT
2
SIG IN
RTN
3
SIG RTN
RST IN
4
RST IN
EXT GATE
5
EXT GATE
BATTERY
6
BATTERY
1
EXC OUT
OUTPUT
2
SIG IN
RTN
3
SIG RTN
4
EXC
5V
5
6
EXCITATION = 5.0V
Figure 3-3a. TTL Output
12
EXCITATION = 5.0V
POSITIVE THRESHOLD
243K PULL UP RESISTOR TO + EXC
1
2
3
4
5
6
7
8
9
10
OPEN
S1
CLOSED
OPEN
OPEN
CLOSED
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
5V
CLOSED
OPEN
243K PULL UP RESISTOR TO + EXC
CLOSED
POSITIVE THRESHOLD
1
2
3
4
5
6
7
8
9
10
EXC
CLOSED
OPEN
OPEN
CLOSED
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
S1
Figure 3-3b. 5V CMOS Output
GETTING STARTED
3
3.2 CONNECTING TO COMMONLY USED SENSORS (Continued)
TB2
EXC
12.4 V
OUTPUT
RTN
1
EXC OUT
2
SIG IN
3
SIG RTN
4
RST IN
5
EXT GATE
6
BATTERY
1
2
3
4
5
6
7
8
9
10
EXCITATION = 12.4V
OPEN
1K PULL DOWN RESISTOR TO RTN
243K PULL UP RESISTOR TO +EXC
CLOSED
POSITIVE THRESHOLD
OPEN
OPEN
OPEN
CLOSED
OPEN
CLOSED
OPEN
OPEN
OPEN
OPEN
S1
Figure 3-4. 3-Wire Sensor with PNP Open Collector Output
TB2
1
EXC OUT
2
SIG IN
3
SIG RTN
4
RST IN
5
EXT GATE
6
BATTERY
EXCITATION= 5.0V
OPEN
243K PULL-UP RESISTOR TO +EXC
CLOSED
LOW LEVEL SIGNAL
ZERO THRESHOLD
NO FILTER
1
2
3
4
5
6
7
8
9
10
CLOSED
OPEN
CLOSED
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
S1
Figure 3-5. 2-Wire Magnetic Pickup (Low Level Signals)
13
3
GETTING STARTED
3.2 CONNECTING TO COMMONLY USED SENSORS
(Continued)
TB2
+
8.2V
1
EXC OUT
2
SIG IN
3
SIG RTN
4
RST IN
5
EXT GATE
6
BATTERY
1
2
3
4
5
6
7
8
9
10
EXCITATION= 8.2V
OPEN
CLOSED
HIGH LEVEL SIGNAL
POSITIVE THRESHOLD
NO FILTER
1.0K PULL DOWN RESISTOR
OPEN
CLOSED
OPEN
CLOSED
OPEN
CLOSED
OPEN
OPEN
OPEN
OPEN
S1
Figure 3-6. 2-Wire NAMUR Sensor
TB2
1
EXC OUT
2
SIG IN
3
SIG RTN
4
RST IN
5
EXT GATE
6
BATTERY
12.4V EXC
OPEN
CLOSED
HIGH LEVEL SIGNAL
POSITIVE THRESHOLD
LOW PASS FILTER
1K PULL DOWN RESISTOR
243K PULL UP RESISTOR TO +EXC
1
2
3
4
5
6
7
8
9
10
OPEN
OPEN
OPEN
CLOSED
CLOSED
CLOSED
OPEN
OPEN
OPEN
OPEN
S1
Figure 3-7. 2-Wire Contact Closure
14
GETTING STARTED
3
3.3 MAIN BOARD POWER JUMPERS
!
Caution: The meter has no power-on switch, so it will be in operation mode as soon as
you apply power.
Typically the meter is shipped per order (per the part number requested) and no modification is
necessary. However, if you want to check voltage jumpers, or to change from 115 Vac to 230 Vac
(refer to Figure 3-8):
Note ☞
Disconnect the power from the unit before proceeding.
1. Remove the main board from the case.
2. Locate the wire jumpers W1, W2 and W3 (located near the edge of the main
board alongside the transformer).
3. If your power requirement is 115 Vac, install solder jumpers W1 and W2, but do
not install jumper W3.
If your power requirement is 230 Vac, install solder jumpers W3, but do not
install jumpers W1 or W2.
Y
LA
SP
DI
ER
RM
O
SF
AN
TR
S1
W2
W3
TB2
W1
TB1
Figure 3-8. Main Board Jumpers (W1, W2, W3)
15
3
GETTING STARTED
3.3.1 ac Power Failure Provision
To store a total count in the nonvolatile memory if an ac power loss occurs set the S1-10 switch
to "open". When ac power resumes the meter displays the total at the time of the
power loss, and then resumes totalizing.
3.3.2 dc Power/Backup Battery Provision
You may power the meter from an external dc power supply, or an external battery. The typical
current requirement is 260 mA at 7.5 to 13 Vdc to maintain full operation and meter display when
no option board is installed. You can shut off the display without affecting any meter functionality
by setting the S1-10 switch to open. Shutting off the digital display reduces the current
requirement to 30 mA (if option boards are installed, add 180 mA for an analog output board, 120
mA for a dual-relay board, and 20 mA for an RS232 board).
!
CAUTION: If the S1-10 switch is in the "closed" position, the meter
does not detect any power loss (ac or dc), and therefore will not load
the display data into the nonvolatile memory. In this case the Total is
loss when both ac and dc power are lost.
J2
6
J1
1
2
3
1
TB2/SIGNAL
TB1
1
2
TB3
3
1
2
3
4
5
6
1 2
S1
1
RTN
3
4
CLOSED
BATTERY BACKUP
Figure 3-9. dc Power/Battery Backup
16
5
6
OPEN
10
3
GETTING STARTED
3.4
MOUNTING THE METER
PANEL
CUT-OUT
RE
A
(R R C
EM OV
OV ER
ED
CONNECTOR
)
"NEW" STYLE
MOUNTING
BRACKET
LABEL
PRODUCT
LABEL
CASE
GASKET
"OLDER" STYLE
MOUNTING
BRACKET 2 PCS
Note: Gasket is only
used when “New” style
mounting bracket is
used.
FRONT BEZEL
Figure 3-10. Meter - Exploded View
1. Cut a hole in your panel,
as shown in Figure 3-10.
For specific dimensions
refer to Figure 3-11.
2. Insert the meter into the
hole. Be sure the front
bezel gasket is flush
to the panel.
3. Slide on mounting bracket
to secure.
PANEL THICKNESS
6,4 (.25) MAX
0,8 (.03) MIN
1,5
R(.06)
4 PLCS
45,00 + 0,61/-0,00
(1.772 + .024/–.000)
92,00 + 0,81/–0,00
(3.622 + .032/–.000)
NOTE: Dimensions in Millimeters (Inches)
Figure 3-11. Panel Cut-Out
17
3
GETTING STARTED
3.5 SELECTING MAIN MENU ITEMS
Note ☞
Refer to Table 6-1 for summary list of menu configurations.
1. Press the MENU button. The meter shows a main menu item.
Continue to press the MENU button to scroll through main menu items.
2. Once the desired main menu item shows, press the £ SET button to show the item's
current value or the active sub-menu item.
3.6 SELECTING SUB-MENU ITEMS
1. Select main menu item.
2. Once the meter shows the correct main menu item, press the £ SET button. The meter
shows either the active sub-menu item or the main menu item's current value.
3. If the meter shows an available sub-menu item, press the ¢ ADV button to show the
sub-menu item's current value.
Note ☞
The main menu items "OFFSET" and "COnFIG" do not have
sub-menus. If you press the £ SET button when the meter shows either of these items,
the meter will show the current number value.
4. Press the £ SET button to change the flashing number value. The left-most digit (above
the RECALL button) may be set to a minus sign. Also, press the £ SET button to
change the decimal point position.
5. Press the ¢ ADV button to change which digit is flashing.
18
GETTING STARTED
3
3.7 SAVING CHANGES
You may store (save) meter changes in the volatile and nonvolatile memory. Remember you
cannot store changes in the nonvolatile memory without first storing them in
the volatile memory.
To store changes in the nonvolatile memory, follow these steps:
1. Make required changes, using the ¢ ADV button to show current values and also
to move from left to right through the digital display. The digit or value that may be
changed will flash. Use the £ SET button to change the function, number value or
decimal point of the flashing item.
2. Press the MENU button until the meter shows "noStor".
3. Press the £ SET button. The meter shows "StorE".
4. Press the MENU button to store the changes to the nonvolatile memory. If power
loss occurs, or meter is hard reset these changes stay in the meter's memory.
To store changes in the volatile memory, follow these steps:
1. Make required changes, using the ¢ ADV button to show current values and also
to move from left to right through the digital display. The digit or value that may be
changed will flash. Use the £ SET button to change the function, number value or
decimal point of the flashing item.
2. Press the MENU button to store changes to the volatile memory.
3. Press the RESET button to operate the meter from the volatile memory.
19
4
RATE MEASUREMENT
Rate Measurement measures the input rate. This measurement defaults to show in Hz
(pulse/sec), but may also show in kHz, RPMs (for tachometer applications), feet/seconds, or
other engineering units.
4.1 LINE FREQUENCY MEASUREMENT
Line frequency measurement is useful as a self-test of the meter. A signal equal
to twice the line frequency is internally available. Close the S1-9 and S1-4 switches and set the
scale factor to multiply by 0.5 (or divide by 2) to measure line frequency. The display shows "50"
or "60", depending upon your local ac line frequency.
Note ☞
No external connection to TB2 is necessary.
4.2 REVOLUTIONS PER MINUTE (RPM) MEASUREMENT EXAMPLE
Example: 10 pulses per revolution
A sensor generates ten pulses for every revolution of a shaft.
If n pulses per revolution is generated, use the following formula:
SCALE = X/n
X = 1 units/seconds (e.g. Hz)
60 units/minutes (e.g. rpm)
3600 units/hours (e.g. GPH)
n = pulses/units
units = gallons, revolutions, feet
To measure the input frequency and show in RPM (instead of Hz), set the SCALE FACTOR to
60/10, or 6.
20
RATE MEASUREMENT
4
4.2 REVOLUTIONS PER MINUTE (RPM) MEASUREMENT EXAMPLE (Continued)
In this example you will do the following:
*
*
*
*
*
Set function to rate mode
Set scale to use "multiply by"
Set scale value to 6.00000
Set measurement decimal point to fixed, far right position
Store set up information in nonvolatile memory
To set up the meter for this example, follow these steps:
Note ☞
Refer to Table 6-1 for summary list of menu configurations.
1. Press the MENU button. The meter shows "Func".
2. Press the MENU button. The meter shows "SCALE".
3. Press the £ SET button. The meter shows "IN .SC" or "IN/SC", with the multiply (.) or
divide by (/) symbol flashing. Press the £ SET button until the meter shows "IN .SC".
4. Press the ¢ ADV button. The meter shows actual scale value, with left-most digit
flashing. The flashing display indicates the position or function may be modified.
5. Set the value at "6.00000". Press the ¢ ADV button to move through the display. Press
the £ SET button to change the flashing digit's value or flashing decimal point position.
6. Once the meter shows the correct scale value, press the MENU button to store to
volatile memory. The meter shows "OFFSEt". "OFFSEt" = 0 for all flowmeters where: 0
Hz = 0 GPM or RPM. For flowmeters with an "OFFSEt", enter the "OFFSEt" in
engineering units, such as GPM or LPM.
21
4
RATE MEASUREMENT
4.2 RPM MEASUREMENT EXAMPLE (Continued)
7. Press the MENU button again to show "dEC
point, not the scale value decimal point.
Pt".
This is the measurement decimal
8. Press the £ SET button to show current measurement decimal point, with decimal point
flashing. Press the ¢ ADV button (if required) to change from "AUto" to "F.FFFFF".
9. Press the £ SET button until the meter shows "FFFFFF.".
10. Press the MENU button to save this decimal point to operating memory. The meter
shows "COnFIG".
Note ☞
If a relay card is installed, the meter shows "SP
LO".
11. Press the MENU button again until the meter shows "no
Stor".
12. Press the £ SET button. The meter flashes "StorE".
13. Press the MENU button to store changes in the nonvolatile memory. The meter stores
changes. If this were a real application (not the example), the meter would start
measuring.
Note ☞
22
If you connect a signal to an input, a frequency reading in RPM replaces this display.
THE TOTALIZER MODE
5
The totalizer mode registers a precise total count. Use the totalizer mode for cumulative totals
and stopwatch (timer) applications. Meter up-counts (positive scale factor) or down-counts
(negative scale factor).
To use the meter as a totalizer permanently, set the function to totAL and store the change in
nonvolatile memory (to retain the change if power loss occurs). The meter defaults to the upcount mode. To count down, use a negative scale factor and a positive offset (display = input x
scale + offset).
In case of power failure, if the S1-10 switch is set to open the meter blanks
the display and stores the latest reading in nonvolatile memory.
5.1 TOTALIZER EXAMPLE
You are totalizing pulses from a flowmeter which generates 25 pulses per gallon. To show the
total value in gallons:
* Set the meter to the totalizer mode.
* Use divide (IN /SC) by 25 as a scale factor
* Store set up information in nonvolatile memory.
Note ☞
Refer to Table 6-1 for summary list of menu configurations.
Follow these steps for the above example:
1. Press the MENU button. The meter shows "Func".
2. Press the £ SET button until the meter flashes "totAL".
3. Press the MENU button. The meter shows "SCALE".
4. Press the £ SET button. The meter shows "IN .SC" or "IN/SC", with the multiply (.) or
divide by (/) symbol flashing. Press the £ SET button until the meter shows "IN/SC".
Note ☞
Use multiply (.) when scale factor is less than 1, use divide by (/) when scale factor (or
pulses/units) are greater than 1.
23
5
THE TOTALIZER MODE
5.1 TOTALIZER EXAMPLE (Continued)
5.
Press the ¢ ADV button. The meter shows actual scale value, with left-most digit flashing.
6.
Press the £ SET button to enter 25.0000 as the digit's value. Press the ¢ ADV button to
scroll horizontally through the display. Press the £ SET button to change the flashing digit's
value or flashing decimal point position.
7.
Once the meter shows "25.0000", press the MENU button to store the value. The meter
shows "OFFSEt". In most up-count applications "OFFSEt = 0", which means the meter will
RESET to 0.
8.
Press the MENU button again to show "dEC
not the scale value decimal point.
9.
Press the £ SET button to show either "AUto" or currently set decimal point (decimal point
flashes). Press the ¢ ADV button (if required) to change from "Auto" to "F.FFFFF".
Pt".
This is the measurement decimal point,
10. Press the £ SET button until the meter shows "FFFFFF" to read in whole gallons or
"FFFFF.F" to read in tenths of a gallon.
11. Press the MENU button to save this decimal point to volatile memory. The meter will show
"CONfIG".
12. Press the MENU button until the meter shows "noStor".
13. Press the £ SET button. The meter shows "StorE".
14. Press the MENU button. If signal were connected to the input, the meter would begin
counting input pulses.
Note ☞
24
Press the RESET button at any time to cause the meter to start counting with the latest
changes in effect, but these changes will not automatically be stored in the nonvolatile
memory.
THE TOTALIZER MODE
5
5.2 STOPWATCH IN THE TOTALIZER MODE
To use the stopwatch (timer) in the totalizer mode, close S1-4 and S1-9 jumpers to connect
120/100 Hz (twice the line frequency) to the input. Use the following scale factors:
*
For readings in seconds, divide by 120 (or 100)
*
For readings in minutes and fractions of a minute, divide by 7,200 (or 6,000)
*
For readings in hours and fractions of an hour, divide by 432,000 (or 360,000) (for example:
12.65 hours)
Use external gate input (TB2-5) to stop and start the timer. The meter increments when the Ext.
Gate input is high, or open. A contact closure between pins TB2-5 and TB2-3 will stop the timer.
5.3 DOWN COUNTING
To count down:
Use a negative scale factor (reading = input x scale + offset) and a positive offset (if an offset is
required). Press the RESET button to cause the counter to begin counting down from the offset.
After reaching zero, the counter continues to count down negative numbers.
25
6
REFERENCE TABLES
Table 6-1 provides detail information for main menu items. Table 6-2 provides detail information
for sub-menu items.
Table 6-1. Main Menu Items
Main Menu
Display
MENU Key
Sub-Menu
Display
"Func"
Function
Select rate mode (refer to Section 4) or totalizer mode
(refer to Section 5).
"SCALE"
Scale Factor
Select scale factor as a divider or multiplier. Enter
scale factor value from -.9.9.9.9.9. through 9.9.9.9.9.9. After
measuring the input (totalling), the meter multiplies or
divides the result by the scale factor then adds the
offset.
"Offset"
"Offset Value"
Select offset value from -.9.9.9.9.9. through 9.9.9.9.9.9. In
the totalizer mode, the meter calculates and shows the
offset value after you press the RESET button. The
meter will then be at a starting point for totalizing.
"DEC
Decimal Point
Select where decimal point shows in the digital display.
You may set a decimal point at any of six available
positions. You may also choose a floating decimal
point (auto-range).
26
PT"
Sub-Menu Information
use ¢ADV and £SET key to
perform changes
REFERENCE TABLES
6
SECTION 6. REFERENCE TABLES (Continued)
Table 6-1. Main Menu Items
Main Menu
Display
MENU Key
Sub-Menu
Display
Sub-Menu Information
use ¢ADV and £SET key to
perform changes
"Sp
LO"
Setpoints
Shows only if the relay option board is installed. Similar
to offset,
"SP
HI"
Setpoints
-.9.9.9.9.9
"CONFIG"
to 9.9.9.9.9.9. shows. After applying the scale
factor and offset, the displayed measurement is
compared to the setpoint values.
Configuration
Program internal software switches to specify baud
rate, activate external or internal gate input, and modify
alarm conditions. Refer to Table 6-3 for configuration
detail.
"AN
LO"
Analog Low
Display value for low analog output.
"AN
HI"
Analog High
Display value for high analog output.
Note: Install S2-B to unlock this prompt.
NoStore/Store
Select "noStor" to save to the volatile (active) memory.
Select "Store" to save to the nonvolatile (permanent)
memory. Nonvolatile memory is not effected by power
loss.
"noStor"
27
6
REFERENCE TABLES
SECTION 6. REFERENCE TABLES (Continued)
Table 6-2. Sub-Menu Items
Main Menu
Display
MENU Key
Sub-Menu
Display
"Func"
"rate"
In the "rAtE" mode, the meter acts as a ratemeter for
measuring the rate at which counts are received. The
meter shows in Hz (pulse/sec), and may also show in
kHz, RPM (for tachometer applications), feet/sec and
other engineering units.
"total"
In the "totAL" mode, the meter acts as a totalizer for
registering a precise total count from mechanical,
photoelectric, electromagnetic or electronic inputs or
detectors. Use for cumulative totals and stopwatch
applications. The meter up-counts (positive scale
factor) and may be configured to down-count (negative
scale factor).
"IN/SC"
Scale factor is a divider.
"IN.SC"
Scale factor is a multiplier.
"SCALE"
Sub-Menu Information
use ¢ADV and £SET key to
perform changes
Multiply or divide input by any desired scale factor from
to 999999. After measuring the input, the
meter multiplies or divides the result by the scale factor
and then adds the offset.
-99999
28
REFERENCE TABLES
6
SECTION 6. REFERENCE TABLES (Continued)
Table 6-2. Sub-Menu Items (Continued)
Main Menu
Display
MENU Key
"DEC
Pt"
Sub-Menu
Display
"F.FFFFF"
Sub-Menu Information
use ¢ADV and £SET key to
perform changes
Decimal point moves from left to right through the
digital display. You may set a fixed decimal point at any
of the six available positions (e.g. -.9.9.9.9.9. to 9.9.9.9.9.9.).
This mode is useful for low frequency, low resolution
pulse inputs, such as from paddle-wheel sensors. For
example, to have the meter show to the nearest 1/100
of a gallon, select the decimal point "FFFF.FF". When
you set a fixed decimal point, the meter maintains a
meaningful unit of measurement. For example, if the
input frequency is 10 Hz, the function is rate and the
fixed decimal point equals 3, the display reads 10.00,
not .10.
You may also choose a floating decimal point
(auto-range).
Auto-range automatically adjusts the decimal point
location to provide the highest measurement resolution
possible. This mode is useful for high frequency, high
resolution pulse inputs, such as outputs from turbine
meters or low flow sensors.
29
6
REFERENCE TABLES
SECTION 6. REFERENCE TABLES (Continued)
The 6 digits of Configuration show as a sub-menu of CONFIG.
Table 6-3. Meter Configuration Detail
(Factory defaults are bold and in italics)
6 Digits of Configuration
0 0
0
0
0
0
Determines analog output signal.
0 4-20 mA
1 0-10V
0
1
Unlatched
Latched
0
1
Setpoint LO works as active below the setpoint
Setpoint LO works as active above the set-point
(similar to setpoint HI).
0
1
Message handshake - If RTS input is true,
sends complete message
Character handshake - Checks RTS input before sending each character, and
sends characters only while RTS is true.
0
1
Determines the communication rate.
9600 baud rate
1200 baud rate
0
1
30
Transmits alarm status (total of 9 characters)
Does not transmit alarm status character
TROUBLESHOOTING
7
Your meter is powerful, with a wide range of programming parameters. Before requesting
service, determine your program revision letter and mode (totalizer or rate) by pressing the
RECALL and RESET buttons simultaneously. The meter shows "COdE _" (last number or letter
represent the meter firmware revision)
Table 7-1. Troubleshooting Chart
Symptom
Action to Take/Explanation
Display is completely blank
Check power connections. For battery-powered units,
close S1-10. Press the RESET and RECALL
buttons simultaneously or disconnect power for 20
seconds.
Display shows rAtE or
totAL. Meter does not
show a measurement.
Check the input connections, levels, and S1
positions. The input signal(s) may be advance to
missing.
Display reads zero.
Press the RESET and RECALL buttons
simultaneously. If display still reads zero, you may
have a scale factor that is either a small multiplier
(including zero) or a large divider. RESET input may
be active low.
Display shows an illegal
character (not in the
glossary).
Press the RESET and RECALL buttons
simultaneously or disconnect
power for 120 seconds.
Display shows number in
exponential format,
e.g.1.23 E6 (overflow indication).
If the digit following the E is 5 or smaller, use
auto-range. If it is 6 or greater, use a
smaller multiply scale factor and auto-range.
One or more digits are flashing.
The counter may be in the programming mode. Press
the RESET button to reset the counter.
31
8
RS-232 OPTION
8.1 INSTALLING THE RS-232 OPTION BOARD
Install the RS-232 option board as follows (refer to Figure 8-1):
!
CAUTION: The meter has no power-on switch, so it will be in operation as soon as you
apply power.
!
IMPORTANT: Disconnect the power from the unit before installing this option board.
1. Remove the protective back panel and slide the meter out of the case.
2. Hold the RS-232 option card in a vertical position, with the J2 connector facing the back
of the meter.
3. Line up the P1 connector on the RS-232 board with the J1 pins on the main board. Push
down to secure.
RD
OA
2B
23
RS
P1
J2
DISPLAY
BOARD
(REF)
MAIN BOARD (REF)
TB1
TB2
S1
Figure 8-1. Installing the RS-232 Option Board
32
RS-232 OPTION
8
8.1 INSTALLING THE RS-232 OPTION BOARD (Continued)
CASE
PHONE
JACK
RS232 BD
TB1
1 2
3
TB2
1 2
3
4 5
6
MAIN
BOARD
S1
OP
EN
Figure 8-2. Protective Back Panel
4. Slide meter back into the case.
5. Install the protective rear panel to secure the board (refer to Figure 8-2):
a. Align the two bottom front edges of the protective panel with the corresponding
groves on the meter case.
b. Align the top left groove of the protective panel with the RS-232 board.
c.
Snap protective panel closed.
33
8
RS-232 OPTION
8.2 REMOTE PROGRAMMING
The meter may accept an RS-232 card for communications. The card enables the meter to
receive setup commands and data, and send measurement values and current setup data to a
computer. The meter operates at either 1200 or 9600 baud, 7 data bits, even parity and 1 stop
bit. It emulates DCE (data communication equipment) and uses a handshake line while sending
data, but none while receiving data. A 4-wire cable is the maximum required for the following
communications:
Signal return (RTN)
Received data (RX)
Transmitted data (TX)
Request to send (RTS)
N/C
N/C
6
5
4
3
2
1
When you connect your meter to a computer, such as an IBM PC, and the meter receives one of
8 commands (P, G, W, R, V, SC, SG and SP) the meter interrupts its program, receives the
message, takes appropriate action, and then starts over with a new measurement. No handshake is required because the meter devotes its full attention to receiving the command data
from the computer. In the other direction, the meter sends measurement and confirming setup
data to the computer under one of 2 handshake (RTS) modes.
Message Handshake - The RTS line is checked when the device is ready to send
measurement data. If the RTS is true, it sends the complete message data without interruption
even if the RTS goes false in the middle of transmission. If the RTS is false, it skips sending the
data completely and continues with the next measurement.
Character Handshake - The device checks the RTS input before sending each character
and sends characters only while the RTS is true.
34
RS-232 OPTION
8
8.3 ASCII OUTPUT
The meter sends measurement data according to the following fixed formats of 9 or 8 characters.
Each character is sent as a 7-bit ASCII code character with even parity, and may be blank (ASCII
32)
8.3.1 9-Character Format
CHAR #
1 2 3 4 5 6 7 8 9
CARRIAGE RETURN
CHARACTERS 2-8:
MEASUREMENT VALUE
(DISPLAYED ON FRONT-PANEL)
ALARM INFORMATION:
H= HIGH ALARM
L= LOW ALARM
B= BOTH HIGH AND LOW ALARMS
SPACES = NEITHER HIGH NOR LOW ALARMS
Figure 8-3. ASCII Output 9-Character Message
(COnFIG=XXXXX0)
As Figure 8-3 details, the 1st character represents alarm information and provides one of the
following: H = High Alarm, L = Low Alarm, B = Both High and Low Alarms or Space = Neither
High nor Low Alarms.
Characters 1 through 8 represent the measurement value as shown on the front-panel. If
positive, there are 6 digits and a decimal point; if negative, there is a minus sign with 5 digits and
a decimal point. Blanks are sent in place of leading zeros. If the value overflows the 6-digit limit, it
is sent in exponential format up to a maximum of 9.99 E9 or -9.9 E9. The final character is a
carriage return.
35
8
RS-232 OPTION
8.3 ASCII OUTPUT (Continued)
8.3.2 8-Character Format
CHAR #
1 2 3 4 5 6 7 8
CARRIAGE RETURN
CHARACTERS 1-7:
MEASUREMENT VALUE
6 DIGITS AND A DECIMAL POINT
(DISPLAYED ON FRONT-PANEL)
Figure 8-4. ASCII Output 8-Character
(COnFIG=XXXXX1)
Characters 1 through 7 represent the value on the display (6 digits and a decimal point).
The final character (character 8), is a carriage return.
8.3.3 Setup Data
'Get' or 'Read' commands send setup data to the computer for verification. Setup data is sent
and received as ASCII characters representing the 16 hex characters 0-9; A-F. Each hex
character represents 4 bits or 16 pieces of information. The 7-bit ASCII characters are shown
with a leading even-parity bit, as shown in Table 8-1.
36
RS-232 OPTION
8
8.3.3 Setup Data (Continued)
Table 8-1. Hex Character/Bit Pattern Information
Hex Character
0
1
2
3
4
5
6
7
Bit Pattern
0011 0000
1011 0001
1011 0010
0011 0011
1011 0100
0011 0101
0011 0110
1011 0111
Hex Character
8
9
A
B
C
D
E
F
Bit Pattern
1011 1000
0011 1001
0100 0001
0100 0010
1100 0011
0100 0100
1100 0101
1100 0110
The setup data consists of a total of 44 nibbles of information that are sent and received in the
following order:
Table 8-2. Setup Order Information
Display
Parameter
# of Nibbles
------
Analog Out Scale*
2
Analog Out Offset*
4
Calibration
2
SP HI
Setpoint High
6
SP LO
Setpoint Low
6
OFFSEt
Offset
6
SCALE
Scale
6
------
Gate Time and Time Out
4
------
Analog Output Control*
2
COnFIG
Configuration
2
dEC Pt
Decimal Point
2
Func
Function
2
* Do not confuse with "An
LO"
and "An
HI".
37
8
RS-232 OPTION
8.3.3 Setup Data (Continued)
Each parameter is sent with the most-significant nibble first. Each bit may have stand-alone
significance or may be part of a binary number according to the following formats. The binary value
0-255 is used to calculate the analog output value from the display value (refer to Figure 8-9). See
also Control Bit Storage (refer to Figure 8-7).
Analog Out Scale (2 Nibbles Each)
Binary Value 0-255
Figure 8-5. Analog Out Scale Storage Format
Analog Out Offset (4 Nibbles Each)
Binary Value 0-65535
Figure 8-6. Analog Out Offset Storage Format
Note ☞
256 generates 0 V (0 mA) and 51200 generates 10 V (20 mA).
ANALOG OUT CONTROLS
An LO and An HI menu items are for coarse adjustment of analog output. The meter uses these
values to calculate Analog Scale and Offset. Analog Scale is one byte and stored in location 3E.
Analog Offset is 2 bytes and is stored in locations 3C and 3D. Location 2C is used for storage of
control bits as follows:
SP HI, SP LO, OFFSET, SCALE ( 6 Nibbles each )
MS
Nibble
Polarity
0=+
1=
LS
Nibble
Coded
Decimal
Point
Location
Binary value of Magnitude
Figure 8-7. Storage Format
The decimal point value must be 1 through 6 (not 0 or 7).
Example: A01000 = -0409.6
DP=2, - Negative Polarity
38
RS-232 OPTION
8
8.3.3 Setup Data (Continued)
GATE TIME
MS
Nibble
LS
Nibble
Binary value of Magnitude
in Hundredths of Seconds
Figure 8-8. Binary Value
Note ☞
If MS byte is 1111 1111, meter uses 00000000.
CONFIG
1
1
1
1
1
1
1
=
=
=
=
=
=
=
NO ALARM STATUS CHARACTER
1200 BAUD (0 = 9600 BAUD)
CHARACTER HANDSHAKE ( Ø = MESSAGE HANDSHAKE)
CHANGE LOW ALARM TO HIGH
LATCHED ALARM
0-10V ANALOG OUTPUT
PRINT REQUEST
SCALE OPERATION, 1 = DIVIDE
0 = MULTIPLY
Figure 8-9. Setup Configuration
39
8
RS-232 OPTION
8.3.3 Setup Data (Continued)
DEC PT
MS
Nibble
0 0 0 0 0 X X X
VALUE
0
1
2
3
4
5
6
LS
Nibble
DECIMAL POINT LOCATION
AUTO RANGE
FFFFFF. RIGHT OF DIGIT
FFFFF.F RIGHT OF DIGIT
FFFF.FF RIGHT OF DIGIT
FFF.FFF RIGHT OF DIGIT
FF.FFFF RIGHT OF DIGIT
F.FFFFF RIGHT OF DIGIT
1(LSD)
2
3
4
5
6(MSD)
Figure 8-10. Decimal Point Setup
FUNC
MS
Nibble
0 0 X X
X X X X
LS
Nibble
RATE
MUST BE 0
MUST BE 0
MUST BE 0
TOTALIZE
ZERO TOTAL ( in TOTALIZE only )
Figure 8-11. Totalizer Function Setup
One, and only one bit must be a 1 - except for the totalizer bit, which may also have the zero
total bit set to a 1.
When the meter receives the totalizer bit, the zero total bit causes the value to be reset to zero;
otherwise, the TOTALIZER value is unaffected.
40
RS-232 OPTION
8
8.4 ASCII INPUT
The meter receives commands and setup data. The meter may receive one of 8 commands: P,
G, W, R, V, SC, SG, and SP. Each of these commands are explained in detail in the following
pages. Each is a single letter preceded by the preamble string of the following 3 characters:
@U?. For example, Put reads @U?P. The @ U and ? characters reduce the probability of noise
patterns and aid in generating an acceptable command. The Put command is followed by 42 hex
characters of desired setup data. All commands are terminated with a carriage return, indicated
by <CR>.
@U?PXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX<CR>
@U?G<CR>
@U?W<CR>
@U?R<CR>
@U?V<CR>
@U?SC<CR>
@U?SGaa<CR>
@U?SPaadd<CR>
'Put' Command @ U?P (setup data) <CR>
Sends setup data to the meter. The meter then stores data into its active memory and starts
making measurements using the new setup parameters.
'Get' Command @ U?G <CR>
Sends the current setup parameters from the meter's active memory to the computer. Use the
'Get' command after the 'PUT' command to verify that the meter has correct setup parameters.
41
8
RS-232 OPTION
8.4 ASCII INPUT (Continued)
'Write' Command @ U?W <CR>
Transfers the setup data in the meter's active (volatile) memory to nonvolatile memory. Once the
setup data is transferred to the nonvolatile memory it becomes a stored program. A program may
be active, but not stored, by executing a 'Put' command or, entered from the keyboard. Stored
programs are not affected when you recall the meter or power loss occurs. When power is
restored or the recall is complete, stored program data resides in both the active and nonvolatile
memory.
'Read' Command @ U?R <CR>
Requests the meter to read (transfer) the setup data from the nonvolatile memory into the active
memory for use in the measurements that follow and to send this setup data to the computer.
'Print' Command @U?V <CR>
Works as a print request and sends out one measurement data. This command only works when
you select RTS message handshake and the RTS input is false.
Single 'GET' Command @U?SGaa <CR>
Two ASCII characters sends the content of aa address in memory. aa are two ASCII characters
of 0 - 9 and A - F. aa is a hexadecimal address of memory. Refer to the Table 8-3 for available
memory location for this command.
42
RS-232 OPTION
8
8.4 ASCII INPUT (Continued)
Table 8-3. Memory Addresses Accessed by
Single 'GET' and Single 'PUT' Commands
aa
Description
29
Function
2A
Decimal point.
2B
Configuration.
2C
Analog output configuration.
2D
Gate time: low byte
2E
Gate time: High byte
2F
SCALE LSB
30
SCALE 2nd byte
31
SCALE MSB
32
OFFSET LSB
33
OFFSET 2nd Byte
34
OFFSET MSB
35
Setpoint Low LSB
36
Setpoint Low 2nd Byte
37
Setpoint Low MSB
38
Setpoint High LSB
39
Setpoint High 2nd Byte
3A
Setpoint High MSB
3B
Calibration Number
3C
Analog Output Offset LSB
3D
Analog Output Offset MSB
3E
Analog Output Scale
43
8
RS-232 OPTION
8.4 ASCII INPUT (Continued)
Single 'PUT' Command @U?SPaadd <CR>
Puts the dd data in the aa memory address. aa and dd are each two ASCII characters, from 0 - 9
or A - F. aa consists of two hexadecimal digits of address and dd consists of two hexadecimal
digits of data. Table 8-3 shows available address locations for this command.
!
CAUTION: Use this command only with addresses (aa values) shown in
Table 8-3.
Micro Controller Revision Command @U?SC <CR>
This command returns one ASCII character representing the revision number or letter of the
micro controller program.
8.5 INTERFACING EXAMPLES
The meter can interface to any device with RS-232E communications. The output levels are ±8 V
and the inputs may accept up to ±25 V. The pin connections are labeled for the meter to emulate
DCE (Data Communications Equipment). Examples are given for connections to an IBM PC with
D-25 and D-9 connectors. A 7' cable with two RJ-12 telephone jacks at two ends are provided
with RS-232 option. The connector adapter for D-9 and D-25 are optional.
5
9
6
1
RTN
RX
TX
RTS
N/C 6
5
4
3
2
N/C 1
RJ-12
CONNECTOR
Figure 8-12. Meter Serial Port to a D-9 Connector
44
RS-232 OPTION
8
8.5 INTERFACING EXAMPLES (Continued)
1
14
RTN
RX
TX
RTS
N/C 6
5
4
3
2
N/C 1
RJ-12
CONNECTOR
25
13
Figure 8-13. Meter Serial Port to a D-25 Connector
Table 8-4. Meter to IBM PC - D-9 or D-25 Connector
IBM PC
(DTE)
D-25
Connector
IBM PC
(DTE)
D-9
Connector
Meter
(DCE)
NC
NC
J2-1
No Connection
Request to Send
4
7
J2-2
RS-232 (RTS)
Received Data
3
2
J2-3
RS-232 OUT (TX)
Transmitted Data
2
3
J2-4
RS-232 IN (RX)
Signal Return
7
5
J2-5
Return (RTN)
NC
NC
J2-6
No Connection
Description
45
8
RS-232 OPTION
8.6 PROGRAMMING CONSIDERATIONS
8.6.1 Communication Rate
If possible, use 9600 baud for communications instead of 1200. 9600 baud has a faster reading
rate and less time is spent communicating.
The table below details measurement and setup time:
Table 8-5. Baud Rate Information
9600 Baud
1200 Baud
Measurements (9 Characters)
9.4 msec
75 msec
Setup data (43 Characters)
45.8 msec
360 msec
8.6.2 Modem Operation
You may connect the meter to a freestanding modem, such as the Hayes Smartmodem 1200, to
transmit and receive data over phone lines. A typical controller would be an IBM PC with a Hayes
Smartmodem 1200B plug-in modem.
COMPUTER
MODEM
MODEM
METER
Figure 8-14. Modem Concept
Use a 1200 baud rate to receive measurement and setup data to be sent from the computer to
the meter. Connect an auto answering modem to the meter to gather data from a remote location
upon demand. If you send a command to the meter at 1200 baud while the
meter's active memor y is programmed for 9600 baud, the meter will
automatically switch to 1200 baud. This prevents the modem application from
being disabled when a setup parameter of 9600 baud is accidentally sent to
the meter.
46
RS-232 OPTION
8
8.7 PARITY CHECKING
Although the meter includes an even parity bit with data sent out on the
RS-232C interface, it does not check the data received for even parity.
8.8 TIMING
When you send a 'PUT' command to the meter, the command is accompanied by a string of 42
setup characters. The BASIC program statement PRINT #1, @U?P + SETUP$ puts the string
into an output buffer for transmission and the BASIC program continues while the data is being
transmitted. If, within a few lines, you execute the statement PRINT #1, @U?G, the @U?G is
added to the end of the setup string in the buffer (which is still being transmitted). This causes the
@U?G characters to be missed because each transmission from the computer must be
completely received by the meter and the next measurement started before another command is
issued. A statement FOR J=1 TO 300:NEXT J introduces enough delay to allow
separation between commands.
47
8
RS-232 OPTION
8.9 PROGRAMMING EXAMPLE
50'**************************************************
60'
COMMUNICATION EXAMPLE
100' THIS PROGRAM READS THE OUTPUT
110'*************************************************
150
CLS
170
PRINT"SET ALL CONFIGURATION DIGITS TO ZERO"
180
PRINT
200
INPUT "ENTER COM1 (1) OR COM2 (2) RS-232 PORT";W
220
IF W=1 THEN COMM$="COM1" ELSE COMM$="COM2"
240
INPUT "ENTER A SINGLE COMMAND (SC, SPaadd, V, ... ";BB$
270
GOSUB
1000
280
PRINT
290
PRINT RES$
330
INPUT "ENTER COMMAND, <CR> TO REPEAT, S TO START OVER";AA$
340
IF AA$="S" OR AA$="s" THEN 200
345
IF AA$<>"" THEN BB$=AA$
350
GOTO 270
450
END
1000 B$=""
1100 CR$=CHR$(13)
1200 CLOSE: OPEN COMM$+":9600,E,7,1,DS,CS,RS" AS #1
1300 IF BB$="" THEN BB$="V"
1350 PRINT #1, "@U?"+BB$+CR$;
1370 PRINT "WAITING ....
";
1400 FOR X=1 TO 20: NEXT X
1500 PRINT ".";
1550 N=N+1
1570 IF N > 1000 THEN RES$="NO ANSWER":GOTO 2000
1600 IF LOC(1)=0 THEN 1400
1650 ON ERROR GOTO 1400
1700 A$=INPUT$(LOC(1),#1)
1800 B$=B$+A$
1850 Q=INSTR(B$,CR$)
1900 IF Q=0 THEN 1500
1950 RES$=LEFT$(B$,Q-1)
2000 N=0
2100 CLOSE #1
2200 RETURN
48
ANALOG OUTPUT
9
9.1 INSTALLING THE ANALOG OUTPUT BOARD
Install the analog output board as follows (refer to Figure 9-1):
!
!
CAUTION: The meter has no power-on switch, so it will be in operation
as soon as you apply power.
IMPORTANT: Disconnect the power from the unit before installing this
option board.
1. Hold the analog output card in a horizontal position, with the R37 and R38
potentiometers facing the back of the meter.
2. Line up the P6 connector on the interconnect board with the J6 pin on the main
board. Push down to secure.
3. Line up the J8 pin on the analog output board with the P8 connector on the
interconnect board. Push down to secure.
ANALOG OUTPUT BD
SOLDER SIDE
J8
J1
DISPLAY
BOARD
(REF)
7
R3 38
BACK OF
R
THE METER
P8
P6
J7
J6
TB1
TB2
MAIN BOARD (REF)
S1
INTERCONNECT
BOARD
(SOLDER SIDE)
Figure 9-1. Installing the Analog Output Board
49
9
ANALOG OUTPUT
9.2 SETTING UP THE ANALOG OUTPUT BOARD
*
*
*
*
The display reading is in counts, disregarding the decimal point.
The output is in volt or milliamp.
The analog output may be used for proportional control applications, without integral or
reset function.
"An LO" and "An HI" values are write-only. Values cannot be displayed once they
are stored. Display will show "000000." even through values are stored.
Coarse adjust the analog output board as follows:
Note ☞
Refer to Table 6-1 for summary list of menu configuration.
1. Set the left digit in configuration to 0 for 4-20 mA (0XXXXX) or to
1 for 0-10 V (1XXXXX).
2. Access "An LO" menu item. Enter display value which will give you
4 milliamps (0 volts).
3. Access "An HI" menu item. Enter display value which will give you
20 milliamps (10 volts).
4. Save in either volatile or nonvolatile memory.
Once you have performed coarse adjustment, proceed to fine adjustment as follows:
5. Adjust the input to show a value equal to "An LO". Adjust R38 potentiometer at the back
of the board (refer to Figure 9-1) for 4 milliamp output (0 volts).
6. Adjust the input to show a value equal to "An
of the board for 20 milliamp output (10 volts).
HI". Adjust
R37 potentiometer at the back
7. Repeat fine adjustment as necessary.
An easy way to set the display to "An
and set the offset to "An LO" and "An
50
LO" and "An HI" is to put the
HI" while there is no input.
meter in the totalizer mode
ANALOG OUTPUT
9
9.2 SETTING UP THE ANALOG OUTPUT BOARD (Continued)
Example 1:
0.00 - 1000.00 display counts to equal 4-20 mA analog output.
1. Set configuration = 0XXXXX
2. Enter "An
LO"
= 0000.00
3. Enter "An
HI"
= 1000.00
4. Adjust R38 potentiometer for 4 mA output, while display = 0.00
5. Adjust R37 potentiometer for 20 mA output, while display = 1000.00.
Example 2:
5000 - 10000. display counts to equal 0 - 10 V analog output.
1. Set configuration = 1XXXXX
2. Enter "An
LO"
= 005000.
3. Enter "An
HI"
= 010000.
4. Adjust R38 potentiometer for 0 V output, while display = 5000.
5. Adjust R37 potentiometer for 10 V output, while display = 10000.
Example 3:
Using analog output as a proportional controller: 8000. - 7000. display counts to
equal 4-20 mA analog output. When "An LO" is greater than "An HI", the analog
output may be used for proportional control applications.
1. Set configuration = 0XXXXX
2. Enter "An
LO"
= 008000.
3. Enter "An
HI"
= 007000.
4. Adjust R38 potentiometer for 0 V output, while display = 8000.
5. Adjust R37 potentiometer for 10 V output, while display = 7000.
51
9
ANALOG OUTPUT
9.2 SETTING UP THE ANALOG OUTPUT BOARD (Continued)
Example 4:
Programming "An LO" and "An HI" for analog output ranges other than 0-10 V
or 4-20 mA. For example, if require 0-5 V output for the display readings of 0 10,000:
1. Select 0 - 10 V range and enter "An
2. Enter "An
HI"
LO"
=0
= 20,000.
Example 5:
To get 1-5 V output for 0 - 10,000 readings, enter the desired display for 0 V output as
"An LO" per the formula below:
Gain =
Reading High - Reading Low
Input High - Input Low
Gain =
10,000 - 0 = 10,000 cts/V = 2,500 cts/V
5-1
4
Output = Reading/Gain + Offset
Output =
Reading + 1
2500
Reading = -2,500 will cause 0 V output
Reading = 22,500 will cause 10 V output
An LO = 0
An HI = 22,500
52
ANALOG OUTPUT
9
9.3 ELECTRICAL CONNECTION and SPECIFICATIONS
The analog output board is available on the J1 connector.
J1-1:
Analog Return
J1/ANALOG OUT
1
2
3
J1-2:
J1-3:
Current Output
Voltage Output
ANLG 4-20 0-10V
RTN
mA
ANALOG
CURRENT
4-20 mA
ANALOG
RTN
ANALOG
VOLTAGE
0-10 V
J2
6
1 2 3
J1
ANLG OUT OPTION
1
TB1
TB3
TB2
1
2
3
4
5
6
Figure 9-2. Electrical Wiring for Analog Output Connection
Maximum Load Impedance for Current Output:
Maximum Load for Voltage Output:
Total Current Output ( pins 2 and 3 combined):
500�
20 mA
21 mA
Response Time
Total Mode:
80 mSec (99% of final value)
Rate Mode:
360 mSec (99% of final value)
Note ☞
Response time in the Rate Mode can be reduced by changing the Gate Time, using
RS-232 communication.
Minimum SPAN for 20 mA (10 V) output:
Maximum turn down ration ( An LO ):
An HI - An LO
Resolution:
15 bits
Accuracy, 0 - 10 V
99.8%
Accuracy, 4 - 20 mA
99.75%
220 Counts
80
53
10
DUAL-RELAY OPTION
10.1 INSTALLING THE DUAL-RELAY OPTION BOARD
To install the dual-relay option board, follow these steps (refer to the Figure 10-1):
!
!
CAUTION: The meter has no power-on switch, so it will be in operation
as soon as you apply power.
IMPORTANT: Disconnect the power from the unit before installing this
option board.
1. Hold the board in a horizontal position, with the TB3 connector facing towards the
rear of the meter.
2. Line up the 3 connectors located on the back side of the board with pin groups J3, J4
and J5 on the mother card.
3. Push connectors down to secure on relay board.
TB3/RELAY
1
2
3
4
5
6
NC1 N01 CM1 NC2 NO2 CM2
S5
AB
RELAY BD
1
3
4
TB1
12
MAIN BD
TB3
2
5
6
J5
3
12
2
TB2
3
45
1
J3
6
S1
12
2
OP
3
CL
4
1
J4
EN
OS
5
6
ED
7
2
8
9
1
10
Figure 10-1. Dual-Relay Option Board
54
DUAL-RELAY OPTION
10
10.2 SETTING UP THE DUAL-RELAY OPTION BOARD
You may enter a setpoint from -99999 to 999999 with a decimal point in any of the following
positions: 9.9.9.9.9.9. After applying the scale factor and offset, the displayed measurement is
compared to the setpoint values.
LO ALARM
Displayed value is less than Setpoint LO
HI ALARM
Displayed value is more than Setpoint HI
HYSTERESIS
Relay 2 is energized when display value is more than Setpoint HI. Relay 2 is not
energized when display value is less than Setpoint LO
Setpoint Example: Setpoint HI is 500.0 and Setpoint LO is 100.0. Reading changes from 0 to
600 and back to 0. Figure 10-2 on the following page illustrates Table 10-1.
Table 10-1. Setpoint Example
Alarm Status
Reading
LO (Relay 1)
HI (Relay 2)
HYS
0
On
Off
Off
99.9
Off
Off
Off
300
Off
Off
Off
500.0
Off
Off
Off
500.1
Off
On
On
600
Off
On
On
500.1
Off
Off
On
100 - 500
Off
Off
On
99.9
On
Off
Off
0
On
Off
Off
55
10
DUAL-RELAY OPTION
10.2 SETTING UP THE DUAL-RELAY BOARD (Continued)
STANDARD RELAY OPTION
(RELAY ON OR ENERGIZED)
ON
99.9
RELAY 1 (LO)
RELAY 2 (HI)
SET POINT
ON
OFF
0
RELAY 1 (LO)
RELAY 2 (HI)
OFF
OFF
500.1
99.9
ON
OFF
OFF
ON
OFF
OFF
OFF
ON
RELAY OPERATION WITH HYSTERESIS
(RELAY ENERGIZED)
ON
RELAY 1 (LO)
RELAY 2 (HI)
SET POINT
RELAY 1 (LO)
RELAY 2 (HI)
ON
OFF
0
OFF
OFF
500.1
99.9
ON
OFF
OFF
ON
OFF
ON
OFF
Figure 10-2. Setpoint Example Illustration
To convert Setpoint LO to a second high setpoint, set software switch 3 of the configuration
menu to 1 (CONFIG = XX1XXX). LO ALARM becomes active when the reading is greater (more
positive) than that setpoint.
To convert both setpoints to latched setpoints, set software switch 2 of the configuration menu to
1 (CONFIG - X1XXXX). When relays are energized, they stay energized until a Reset (either
front-panel or back connector reset).
56
DUAL-RELAY OPTION
10
10.3 ELECTRICAL CONNECTION AND SPECIFICATION
Each relay has a form C contact. Relays are rated at 28 Vdc or 250 Vac at 5A. Refer to Figure
10-1 and Figure 10-3 to locate contacts and S5 switch.
* TB3-1 is a normally closed contact of relay 1.
* TB3-2 is a normally open contact of relay 1.
* TB3-3 is a common contact of relay 1.
* TB3-4 is a normally closed contact of relay 2.
* TB3-5 is a normally open contact of relay 2.
* TB3-6 is a common contact of relay 2.
NO2
CM2
RELAY 2
NC2
CM1
NO1
NC1
RELAY 1
FUSE
EXTERNAL
LOAD
N
L
J2
6
J1
1
2
3
1
TB2
TB1
1
2
TB3
3
1
2
3
4
5
6
1 2
S1
3
4
5
6
Figure 10-3. Electrical Wiring for Relay Connections
P5
RELAY1
TB3—1
TB3—2
TB3—3
NC1
NO1
K1
SETPOINT LOW OUTPUT
CM1
RELAY2
TB3—4
TB3—5
TB3—6
NC2
NO2
CM2
K2
A
B
HYSTERESIS OUTPUT
S5
SETPOINT HIGH OUTPUT
Figure 10-4. Dual-Relay Connections
57
11
METER SPECIFICATIONS
11.1 STANDARD DIMENSIONS
48,0 (1.89)
96,0 (3.78)
FRONT BEZEL
20,3 (.80)
151,4 (5.96)
RETAINER
CASE
REAR COVER
TOP VIEW
SIDE VIEW
Figure 11-1. Standard Dimensions
PANEL THICKNESS
6,4 (.25) MAX
0,8 (.03) MIN
1,5
R(.06)
4 PLCS
45,00 + 0,61/-0,00
(1.772 + .024/–.000)
92,00 + 0,81/–0,00
(3.622 + .032/–.000)
NOTE: Dimensions in Millimeters (Inches)
Figure 11-2. Panel Cut-Out
58
METER SPECIFICATIONS
11
11.2 DISASSEMBLY
You may need to open up the meter to check or change the 115 or 230 Vac power jumpers. You
may also need to connect or disconnect serial communication boards. To remove and access the
main board, follow the steps described in Section 3.3
11.3 GENERAL INFORMATION
Programmable Functions:
Rate (frequency) and totalizer
Scale Factor:
-99999 to 999999 with a choice of 6 decimal point
positions (9.9.9.9.9.9.), multiply or divide
Offset:
-99999 to 999999 with a choice of 6 decimal point
positions (9.9.9.9.9.9.)
59
11
METER SPECIFICATIONS
11.4 INPUT CHARACTERISTICS
Maximum Frequencies Inputs
Square Wave, (0 to +5 V):
30 kHz: S1-5 open;
S1-1 and S1-4 closed.
Maximum Input Voltage Signal:
S1-6 and S1-7 open
60 V rms, input protected to 120 V rms
S1-7 closed: 18 V rms
S1-6 closed: 15 V rms
Maximum Input Voltage
(all other inputs):
0 to 5 V
Minimum Signal:
25 mV, rms (S1-3 closed)
Trigger Slopes:
Positive or Negative, select by S1-8.
External Gate and Reset Levels:
Low level = less than 0.8V
High level = more than 3.5V
Input Impedance
Signal Input (S1-6 and 7 open):
External Gate and Reset Inputs:
243K pull up to excitation voltage if signal is between 0
and excitation voltage.
20k pull up to +5 V
11.5 DISPLAY
Type:
6 digit, 7-segment, LED Display
Digit Height:
14.2 mm (.56 in)
Symbols:
-.8.8.8.8.8.
Decimal Point:
6 positions; programmable; Fixed or auto-range
Leading Zeros:
Blank
Overflow Indication:
Shows in rate or total mode; in exponential format to
and 8.8.8.8.88
9.99 E9
Update Rate:
3 readings per second (unless modified by RS-232)
Displayed Value:
(Measurement �Scale Factor) + Offset
60
METER SPECIFICATIONS
11
11.6 TIME BASE
Internal Clock Reference:
921.6 KHz
Stability:
±2 ppm/°C
Fine-Calibration Method:
Programmable calibration value accessible through
RS232 communications. Requires frequency calibrator
to calibrate the meter
Calibration accuracy at 25°C:
±10 ppm
11.7 RATE FUNCTION
Frequency range:
0.5 Hz to 30 KHz. The meter utilizes exponential format
above 6 digits. .999 E9 signifies maximum display.
Unit of Measurement:
Rate: Hertz
(Scale Factor = 1)
Accuracy at 25°C:
±1 LSD ±0.01% of the input
(0-5 V (square wave) input)
11.8 TOTALIZER
Count direction:
Up or Down (determined by sign of scale factor)
Internal count capacity:
(500,000,000,000) input pulses. The display utilizes
exponential format above 6 digits.
9.99 E9 signifies maximum display.
ac power failure provisions:
You may store the display value in nonvolatile memory
and restore with power (in totalizer mode only).
61
11
METER SPECIFICATIONS
11.9 ANALOG OUTPUT OPTION BOARD
Max Load Impedance for
Current Output:
500�
Resolution:
15 bits
Accuracy, 0-10V:
99.8%
Accuracy, 4-20 mA:
99.75%
Response Time
Total Mode:
80 mSec (99% of final value)
Rate Mode:
360 mSec (99% of final value)
Minimum SPAN:
220 counts
11.10 RELAY OUTPUT OPTION BOARD
2 Form "C" on/off relays.
Configurable for latched and unlatched by software.
Max Current:
5Amps, resistive load.
Max Voltage:
250Vac or 28Vdc
11.11 POWER
ac voltage (standard):
115 / 230 Vac ±15%
Frequency:
50 / 60 Hz
Power consumption:
11.5 W, max.
External Fuse Protection Recommended:
ac 115V:
IEC 127-2/III, 100 mA, 250 V (T Type) or
UL Slow-Blow 125 mA, 250 V
ac 230V:
IEC 127-2/III, 50 mA, 250 V (T Type) or
UL Slow-Blow 63 mA, 250 V
62
METER SPECIFICATIONS
Excitation Output:
(Select by S1-1 and S1-2)
11
5 V @ 50 mA maximum
8.2 V @ 70 mA maximum
12.4 V @ 100 mA maximum
For excitation currents more than 50 mA, the ac voltage
must be 115 or 230 Vac ±10%.
dc Power/Battery backup:
7.5-13 V, 30 mA (typical), without any option board. The
display goes blank, but the meter continues to totalizer.
260 mA is required to maintain the front-panel digital
display. Add 180 mA for analog output board, 120 mA
for relay board, 20 mA for
RS-232 board.
11.12 ENVIRONMENT
Operating Temperature:
0° to 50°C (32° to 122°F)
Storage Temperature:
-40° to 85°C (-40° to 185°F)
Relative Humidity:
90% at 40°C (non-condensing)
11.13 MECHANICAL
Panel cutout:
1/8 DIN 3.62" x 1.78" (45 x 92mm)
Weight:
1.27 lb (575 g)
Case material:
Polycarbonate, 94 V-O UL rated
63
12
FACTORY DEFAULT VALUES
Table 12-1. Factory Default Values
S1-1
Closed
Excitation output is set to 5.0 V.
S1-2
Open
Excitation output is set to 5.0 V.
S1-3
Open
High hysteresis = 1.5 V.
S1-4
Closed
Threshold is shifted to positive.
S1-5
Open
No low pass filter.
S1-6
Open
No pull-down resistor.
S1-7
Open
243K pull-up to +excitation.
S1-8
Open
Trigger edge = Negative (high to low transition).
S1-9
Open
No signal is internally connected to the input.
S1-10
Open
Twice the line frequency/blank is not grounded.
S2-B*
Installed
Everything is unlocked
S2-C
Installed
Only "An
S3-A
Installed
Enables front-panel buttons.
S4-A
Installed
Enables RECALL buttons.
S5-B
Installed
Selects standard relay option (SETPT HI OUTPUT)
LO"
and "An
HI"
are locked-out.
Note ☞ * For units with analog output option, S2-B is factory default, not S2-C.
64
FACTORY DEFAULT VALUES
12
Table 12-2. Configuration Defaults
Feature
Default Description
Operating Mode (Function)
Rate
Scale
Multiply by 1.00000
Offset
0.00000
Decimal Point
Fixed decimal point: FFFFFF.
Setpoints
HI = 10000. LO = 10.
Configuration
6 digit display.
Each digit may be 0 (default) or 1.
Configuration is detailed below.
6 Digits of Configuration
0 0
0
0
0
0
Determines analog output signal.
0 4-20 mA
1 0-10V
0
1
Unlatched
Latched
0
1
Setpoint LO works as active below the setpoint
Setpoint LO works as active above the set-point
(similar to setpoint HI).
0
1
Message handshake - If RTS input is true,
sends complete message
Character handshake - Checks RTS input before sending each character, and
sends characters only while RTS is true.
0
1
Determines the communication rate.
9600 baud rate
1200 baud rate
0
1
Transmits alarm status (total of 9 characters)
Does not transmit alarm status character
65
APPROVALS INFORMATION
This product conforms to the EMC directive 89/336/EEC amended by 93/68/EEC, and
with the European Low Voltage Directive 72/23/EEC.
Electrical Safety EN61010-1:2001
Safety requirements for electrical equipment for measurement, control and laboratory.
Double Insulation Primary to Secondaries
Pollution Degree 2
Dielectric withstand Test per 1 min
• Power to Input/Output:
2500Vac
• Power to Relays Output:
2500Vac
• RS232 to Inputs:
No Isolation
• Analog to Inputs:
500Vac (720Vdc)
Measurement Category I
Category I are measurements performed on circuits not directly connected to the Mains
Supply (power). Maximum Line-to-Neutral working voltage is 50V ac/dc. This unit should
not be used in Measurement Categories II, III, IV.
Transients Overvoltage Surge (1.2/50uS pulse)
• Input Power:
2500V
• Input/Output Signals:
500V
EMC EN61326:1997 + and A1:1998 + A2:2001
Immunity and Emissions requirements for electrical equipment for measurement, control and
laboratory.
• EMC Emissions Class B of EN61326
• EMC Immunity** Table 1 of EN61326
Note: **I/O signal and control lines require shielded cables and these cables
must be located on conductive cable trays or in conduits. Furthermore,
the length of these cables should not exceed 30 meters
Refer to the EMC and Safety installation considerations (Guidelines) of this manual for
additional information.
66
NOTES
67
NOTES
68
WARRANTY/DISCLAIMER
OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period
of 61 months from date of purchase. OMEGA’s WARRANTY adds an additional one (1) month grace period to
the normal five (5) year product warranty to cover handling and shipping time. This ensures that OMEGA’s
customers receive maximum coverage on each product.
If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer Service
Department will issue an Authorized Return (AR) number immediately upon phone or written request. Upon
examination by OMEGA, if the unit is found to be defective, it will be repaired or replaced at no charge.
OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser, including but
not limited to mishandling, improper interfacing, operation outside of design limits, improper repair, or
unauthorized modification. This WARRANTY is VOID if the unit shows evidence of having been tampered with
or shows evidence of having been damaged as a result of excessive corrosion; or current, heat, moisture or
vibration; improper specification; misapplication; misuse or other operating conditions outside of OMEGA’s
control. Components in which wear is not warranted, include but are not limited to contact points, fuses, and
triacs.
OMEGA is pleased to offer suggestions on the use of its various products. However, OMEGA
neither assumes responsibility for any omissions or errors nor assumes liability for any
damages that result from the use of its products in accordance with information provided by
OMEGA, either verbal or written. OMEGA warrants only that the parts manufactured by the
company will be as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR
REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESSED OR IMPLIED, EXCEPT THAT OF
TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF
LIABILITY: The remedies of purchaser set forth herein are exclusive, and the total liability
of OMEGA with respect to this order, whether based on contract, warranty, negligence,
indemnification, strict liability or otherwise, shall not exceed the purchase price of the
component upon which liability is based. In no event shall OMEGA be liable for consequential,
incidental or special damages.
CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic
Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in medical
applications or used on humans. Should any Product(s) be used in or with any nuclear installation or activity,
medical application, used on humans, or misused in any way, OMEGA assumes no responsibility as set forth
in our basic WARRANTY / DISCLAIMER language, and, additionally, purchaser will indemnify OMEGA and hold
OMEGA harmless from any liability or damage whatsoever arising out of the use of the Product(s) in such a
manner.
RETURN REQUESTS/INQUIRIES
Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE
RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN (AR)
NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID PROCESSING
DELAYS). The assigned AR number should then be marked on the outside of the return package and on any
correspondence.
The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent
breakage in transit.
FOR WARRANTY RETURNS, please have the
following information available BEFORE contacting
OMEGA:
1.Purchase Order number under which the product
was PURCHASED,
2.Model and serial number of the product under
warranty, and
3.Repair instructions and/or specific problems relative
to the product.
FOR NON-WARRANTY REPAIRS, consult OMEGA
for current repair charges. Have the following
information available BEFORE contacting
OMEGA:
1.Purchase Order number to cover the COST of
the repair,
2. Model and serial number of the product, and
3. Repair instructions and/or specific problems
relative to the product.
OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords our customers the
latest in technology and engineering.
OMEGA is a trademark of OMEGA ENGINEERING, INC.
© Copyright 2018 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied, reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without the prior written consent of OMEGA
ENGINEERING, INC.
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