Bulletin: F-MPM
DWYER INSTRUMENTS, INC.
PO Box 373 • Michigan City IN 46360 USA
Phone: (800) 872-9141
Fax: (219) 872-9057
www.dwyer-inst.com
Series MPM Multi Process Meter
Instruction Manual
0-20 mA, 4-20 mA, 0-5 V, 1-5 V, and ±10 V Inputs
NEMA 4X, IP65 Front
Universal 85-265 VAC, or 12/24 VDC Input Power Models
Large Dual-Line 6-Digit Display, 0.60" & 0.46"
Dual-Scale for some Level Applications – Single Input
Sunlight Readable Display Models
Isolated 24 VDC Transmitter Power Supply
Signal Input Conditioning for Flow & Round Horizontal Tanks
Programmable Display & Function Keys
32-Point, Square Root, or Exponential Linearization
Multi-Pump Alternation Control
2 or 4 Relays + Isolated 4-20 mA Output Options
External 4-Relay & Digital I/O Expansion Modules
RS-232, RS-485 Serial Communication Options
Tare Function
Modbus
®
RTU Communication Protocol Standard
Configure, Monitor, and Datalog from a PC with
Free Panel Meter Pro Software
Multi Process Meter Instruction Manual
2
Disclaimer
The information contained in this document is subject to change
without notice. Dwyer Instruments, Inc. 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. Dwyer Instruments,
Inc. shall not be held liable for damages resulting
from such improper use.
Limited Warranty
Dwyer Instruments, Inc. warrants this product against defects in
material or workmanship for the specified period under
“Specifications” from the date of shipment from the factory. Dwyer
Instruments, Inc.’s liability under this limited warranty shall not
exceed the purchase value, repair, or replacement of the defective
unit.
Registered Trademarks
All trademarks mentioned in this document are the property of their
respective owners.
© 2007-2012 Dwyer Instruments, Inc.. All rights reserved.
www.dwyer-inst.com
!
Multi Process Meter Instruction Manual
3
Table of Contents
INTRODUCTION ------------------------------------------------------------ 7
ORDERING INFORMATION --------------------------------------------- 7
SPECIFICATIONS ---------------------------------------------------------- 8
General ------------------------------------------------------------------------------- 8
Process Input -------------------------------------------------------------------- 10
Relays ------------------------------------------------------------------------------ 11
Isolated 4-20 mA Transmitter Output ------------------------------------ 12
Modbus
®
RTU Serial Communications ---------------------------------- 12
COMPLIANCE INFORMATION ---------------------------------------------- 13
Safety ------------------------------------------------------------------------------- 13
Electromagnetic Compatibility --------------------------------------------- 13
SAFETY INFORMATION ------------------------------------------------ 14
INSTALLATION ------------------------------------------------------------ 14
Unpacking ------------------------------------------------------------------------- 14
Panel Mounting Instructions ------------------------------------------------ 14
Mounting Dimensions ------------------------------------------------------- 16
Configuration for 12 or 24 VDC Power Option ------------------------ 17
Connections ---------------------------------------------------------------------- 18
Connectors Labeling --------------------------------------------------------- 19
Power Connections ---------------------------------------------------------- 19
Signal Connections ---------------------------------------------------------- 20
Modbus RTU Serial Communications ----------------------------------- 21
Relay Connections ----------------------------------------------------------- 21
Switching Inductive Loads -------------------------------------------------- 22
F4 Digital Input Connections ----------------------------------------------- 23
4-20 mA Output Connections ---------------------------------------------- 23
Analog Output Transmitter Power Supply ------------------------------ 23
External Relays & Digital I/O Connections ----------------------------- 24
Interlock Relay Feature ----------------------------------------------------- 25
SETUP AND PROGRAMMING ---------------------------------------- 26
Front Panel Buttons and Status LED Indicators --------------------- 27
Display Functions & Messages -------------------------------------------- 28
Main Menu ------------------------------------------------------------------------ 31
Setting Numeric Values ------------------------------------------------------ 32
Setting Up the Meter (setup) ------------------------------------------------ 33
Setting the Input Signal (Input) ------------------------------------------ 34
Setting the Input Units or Custom Tags (units) ---------------------- 35
Multi Process Meter Instruction Manual
4
Setting the Decimal Point (dEc pt) -------------------------------------- 36
Programming the Meter (prog) ------------------------------------------- 37
Program Menu for Single Scale Process --------------------------- 37
Program Menu for Dual-Scale Level Applications ---------------- 37
Multi-Point Calibration & Scaling -------------------------------------- 38
Panel Meter Pro Software ---------------------------------------------- 38
Scaling the Meter (SCALE) ---------------------------------------------- 38
Dual-Scale for Level Application -------------------------------------- 39
Calibrating the Meter with External Source (Cal) ----------------- 41
Setting the Display Parameter & Intensity (dsplay) ----------------- 42
Display Setup Menu --------------------------------------------------------- 43
Setting the Relay Operation (relay) ------------------------------------- 44
Setting the Relay Action ---------------------------------------------------- 45
Programming Set and Reset Points ------------------------------------- 46
Setting Fail-Safe Operation ------------------------------------------------ 46
Programming Time Delay -------------------------------------------------- 46
Relay Action for Loss of 4-20 mA Input (Loop Break) --------------- 46
Relay and Alarm Operation Diagrams ----------------------------------- 47
High Alarm Operation (Set > Reset) ------------------------------------- 47
Low Alarm Operation (Set < Reset) -------------------------------------- 48
High Alarm with Fail-Safe Operation (Set > Reset) ------------------ 49
Low Alarm with Fail-Safe Operation (Set < Reset) ------------------- 50
Pump Alternation Control Operation ------------------------------------- 51
Relay Sampling Operation ------------------------------------------------- 52
Signal Loss or Loop Break Relay Operation --------------------------- 53
Time Delay Operation ------------------------------------------------------- 54
Relay Operation Details ------------------------------------------------------ 55
Overview ------------------------------------------------------------------------ 55
Relays Auto Initialization ---------------------------------------------------- 55
Fail-Safe Operation ---------------------------------------------------------- 55
Front Panel LEDs ------------------------------------------------------------- 56
Latching and Non-Latching Relay Operation -------------------------- 56
Non-Latching Relay (Auto) ------------------------------------------------- 57
Non-Latching Relay (A-man) -------------------------------------------- 57
Latching Relay (LatcH) ----------------------------------------------------- 57
Latching Relay (Lt-Clr) ---------------------------------------------------- 58
Acknowledging Relays ------------------------------------------------------ 58
Pump Alternation Control Applications (Altern) --------------------- 59
Setting Up the Interlock Relay (Force On) Feature ------------------ 62
Scaling the 4-20 mA Analog Output (Aout) ---------------------------- 63
Reset Menu (reset) ------------------------------------------------------------ 64
Control Menu (Contrl) -------------------------------------------------------- 64
Multi Process Meter Instruction Manual
5
Setting Up the Password (pass) ------------------------------------------- 65
Protecting or Locking the Meter ------------------------------------------- 65
Making Changes to a Password Protected Meter -------------------- 66
Disabling Password Protection -------------------------------------------- 66
Advanced Features Menu ---------------------------------------------------- 67
Advanced Features Menu & Display Messages ---------------------- 68
Noise Filter (filter) -------------------------------------------------------- 71
Noise Filter Bypass (bypass) ---------------------------------------------- 71
Rounding Feature (round) ------------------------------------------------- 71
Modbus RTU Serial Communications (serial) ---------------------- 72
Select Menu (SElect) ------------------------------------------------------- 73
Signal Input Conditioning (Functn) -------------------------------------- 73
Low-Flow Cutoff (CutofF) -------------------------------------------------- 76
Analog Output Programming (AoutPr) ---------------------------------- 76
Programmable Function Keys User Menu (user) -------------------- 77
Tare (tare) --------------------------------------------------------------------- 78
Internal Source Calibration (ICAL) --------------------------------------- 79
Meter Copy Function (Copy) ----------------------------------------------- 81
METER OPERATION ----------------------------------------------------- 83
Front Panel Buttons Operation -------------------------------------------- 83
Function Keys Operation ---------------------------------------------------- 83
F4 Operation --------------------------------------------------------------------- 84
Maximum/Minimum Readings ---------------------------------------------- 84
TROUBLESHOOTING ---------------------------------------------------- 85
Diagnostics Menu (diag) ----------------------------------------------------- 85
Determining Software Version -------------------------------------------- 85
Reset Meter to Factory Defaults ------------------------------------------- 86
Factory Defaults & User Settings ----------------------------------------- 87
Troubleshooting Tips --------------------------------------------------------- 90
Alphabetical List of Display Functions & Messages --------------- 91
Multi Process Meter Instruction Manual
6
Table of Figures
Figure 1. 1/8 DIN Panel Cutout Dimensions ..................................... 15
Figure 2. Panel Mounting Details ...................................................... 15
Figure 3. Meter Dimensions - Side View ........................................... 16
Figure 4. Meter Dimensions - Top View ............................................ 16
Figure 5. Jumper Configuration for 12/24 VDC Power .................... 17
Figure 6. Transmitter Supply Voltage Selection .............................. 18
Figure 7. Connector Labeling for Fully Loaded Meter ..................... 19
Figure 8. Power Connections ............................................................ 19
Figure 9. Transmitters Powered by Internal Supply ........................ 20
Figure 10. Transmitter Powered by Ext. Supply or Self-Powered .. 20
Figure 11. Voltage Input Connections .............................................. 21
Figure 12. Relay Connections ........................................................... 21
Figure 13. AC and DC Loads Protection ........................................... 22
Figure 14. Low Voltage DC Loads Protection .................................. 22
Figure 15. F4 Digital Input Connections ........................................... 23
Figure 16. 4-20 mA Output Connections .......................................... 23
Figure 17. Expansion Modules & DIN Rail Mounting Kit ................. 24
Figure 18. External Relays Module Connections ............................. 24
Figure 19. Digital I/O Module Connections ....................................... 25
Figure 20. Interlock Connections ...................................................... 25
Figure 21. Acknowledge Relays w/Function Key or Digital Input .. 58
Figure 22. 1/8 DIN Panel Cutout Template ........................................ 97
Multi Process Meter Instruction Manual
7
INTRODUCTION
The MPM is a multi-purpose, easy to use digital process meter ideal for level, flow
rate, temperature, or pressure transmitter applications. It accepts current and voltage
signals (e.g. 4-20 mA, 0-10 V). Three of the front panel buttons can be custom-
programmed for a specific operation. The analog input can be scaled to display the
process in two different scales; for example the upper display could indicate level in
feet and the second display could indicate the volume in gallons.
The basic model includes an isolated 24 VDC transmitter power supply that can be
used to power the input transmitter 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 meter has the following: four SPDT relays, 4-20 mA output, and two 24
VDC power supplies. The MPM capabilities may be enhanced by adding the following
external expansion modules: four SPST relays (creating an eight-relay process meter),
two digital I/O modules with four inputs and four outputs each, RS-232 or RS-485
communication adapters.
The eight relays can be used for alarm indication or process control applications, such as
pump alternation control. The 4-20 mA isolated output, Modbus RTU serial
communications, and digital I/O options make the MPM an excellent addition to any
system.
ORDERING INFORMATION
85-265 VAC
Model
12/24 VDC
Model
Options Installed
MPM-100 MPM-200 No options
MPM-101 MPM-201 2 relays
MPM-120 MPM-220 4-20 mA output
MPM-121 MPM-221 4 relays
MPM-140 MPM-240 2 relays & 4-20 mA output
MPM-141 MPM-241 4 relays & 4-20 mA output
Accessories
Model Description
PMA-01 RS-232 serial adapter
PMA-02 Meter copy cable
PMA-03 RS-422/485 serial adapter
PMA-04 RS-232 to RS-422/485 isolated converter
PMA-05 RS-232 to RS-422/485 non-isolated converter
PMA-06 USB to RS-232 non-isolated converter
PMA-07 USB to RS-422/485 isolated converter
PMA-08 USB to RS-422/485 non-isolated converter
PMA-10 DIN rail mounting kit for two expansion modules
PMA-11 4 SPST (Form A) relays
PMA-12 4 digital inputs & 4 digital outputs (2 may be connected)
PMA-13 Suppressor (snubber): 0.01 µF/470 , 250 VAC
Multi Process Meter Instruction Manual
8
SPECIFICATIONS
Except where noted all specifications apply to operation at +25°C.
General
DISPLAY Upper display: 0.60" (15 mm) high, red LEDs
Second display: 0.46" (12 mm) high, red LEDs
6 digits each (-99999 to 999999), with lead zero blanking
DISPLAY
INTENSITY
Eight user selectable intensity levels.
DISPLAY
UPDATE RATE
5/second (200 ms).
OVERRANGE
Display flashes
999999.
UNDERRANGE
Display flashes
-99999.
DISPLAY
ASSIGNMENT
The upper (Big) and lower (Little) displays may be assigned
to PV1, PV2, PCT, d r-u, d gross, d nt-g, max/min, max &
min, set points, units (lower display only), or Modbus input.
PROGRAMMING
METHODS
Four front panel buttons, digital inputs, PC and Panel Meter Pro
software, Modbus registers, or cloning using Copy function.
NOISE FILTER Programmable from 2 to 199 (0 will disable filter).
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.
MAX/MIN
DISPLAY
Max/min readings reached by the process are stored until
reset by the user or until power to the meter is turned off.
PASSWORD
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.
POWER
OPTIONS
85-265 VAC 50/60 Hz, 90-265 VDC, 20 W max
or jumper selectable 12/24 VDC 10%, 15 W max.
ISOLATED
TRANSMITTER
POWER SUPPLY
Terminals P+ & P-: 24 VDC 10%. 12/24 VDC powered models
selectable for 24, 10, or 5 VDC supply (internal jumper J4).
85-265 VAC models rated @ 200 mA max, 12/24 VDC powered
models rated @ 100 mA max, @ 50 mA max for 5 or 10 VDC
supply.
NON-VOLATILE
MEMORY
All programmed settings are stored in non-volatile memory
for a minimum of ten years if power is lost.
FUSE Required external fuse: UL Recognized, 5 A max, slow
blow; up to 6 meters may share one 5 A fuse.
Multi Process Meter Instruction Manual
9
NORMAL MODE
REJECTION
Greater than 60 dB at 50/60 Hz.
ISOLATION 4 kV input/output-to-power line
500 V input-to-output or output-to-P+ supply.
OVERVOLTAGE
CATEGORY
Installation Overvoltage Category II:
Local level with smaller transient overvoltages than
Installation Overvoltage Category III.
ENVIRONMENTAL Operating temperature range: -40 to 65°C.
Storage temperature range: -40 to 85°C.
Relative humidity: 0 to 90% non-condensing.
CONNECTIONS Removable screw terminal blocks accept 12 to 22 AWG
wire, RJ45 for external relays, digital I/O, and serial
communication adapters.
ENCLOSURE 1/8 DIN, high impact plastic, UL 94V-0, color: black.
MOUNTING 1/8 DIN panel cutout required:
3.622" x 1.772" (92 mm x 45 mm).
Two panel mounting bracket assemblies are provided.
TIGHTENING
TORQUE
Screw terminal connectors: 5 lb-in (0.56 Nm).
OVERALL
DIMENSIONS
4.68" x 2.45" x 5.64" (119 mm x 62 mm x 143 mm)
(W x H x D).
WEIGHT 9.5 oz (269 g).
WARRANTY 3 years parts & labor.
Multi Process Meter Instruction Manual
10
Process Input
INPUTS Field selectable:
0-20, 4-20 mA, 10 V (0-5, 1-5, 0-10 V), Modbus PV (Slave).
ACCURACY ±0.03% of calibrated span ±1 count,
square root & programmable exponent accuracy .
range: 10-100% of calibrated span.
TEMPERATURE
DRIFT
0.005% of calibrated span/C max from 0 to 65C ambient,
0.01% of calibrated span/C max from -40 to 0C ambient.
SIGNAL INPUT
CONDITIONING
Linear, square root, programmable exponent, or
round horizontal tank volume calculation.
MULTI-POINT
LINEARIZATION
2 to 32 points for PV or PV1.
2 to 8 points for PV2 (Dual-scale Level feature).
PROGRAMMA-
BLE EXPONENT
1.0001 to 2.9999.
ROUND H TANK Diameter & Length: 999.999 inch or cm calculates volume
in gallons or liters respectively.
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.
CALIBRATION
RANGE
Input
Range
Minimum Span
Input 1 & Input 2
4-20 mA 0.15 mA
10 V 0.10 V
An error message will appear if the input 1 and input 2
signals are too close together.
INPUT
IMPEDANCE
Voltage ranges: greater than 500 k
Current ranges: 50 - 100
(depending on resettable fuse impedance).
INPUT
OVERLOAD
Current input protected by resettable fuse, 30 VDC max.
Fuse resets automatically after fault is removed.
F4 DIGITAL INPUT
CONTACTS
3.3 VDC on contact. Connect normally open contacts
across F4 to COM.
F4 DIGITAL INPUT
LOGIC LEVELS
Logic High: 3 to 5 VDC.
Logic Low: 0 to 1.25 VDC.
Multi Process Meter Instruction Manual
11
Relays
RATING 2 or 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
Noise suppression is recommended for each relay contact
switching inductive loads; see page 22 for details.
DEADBAND 0-100% of span, user programmable.
HIGH OR LOW
ALARM
User may program any alarm for high or low trip point.
Unused alarm LEDs and relays may be disabled (turn off).
RELAY
OPERATION
Automatic (non-latching) and/or manual reset.
Latching (requires manual acknowledge) with/without clear
Pump alternation control (2 to 8 relays).
Sampling (based on time).
Off (disable unused relays and enable Interlock feature).
Manual on/off control mode.
RELAY RESET User selectable via front panel buttons or digital inputs
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
(latching).
Note: Front panel button or digital input may be assigned to
acknowledge relays programmed for manual reset.
TIME DELAY 0 to 999.9 seconds, on & off relay time delays.
Programmable and independent for each relay.
FAIL-SAFE
OPERATION
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.
AUTO
INITIALIZATION
When power is applied to the meter, relays will reflect the
state of the input to the meter.
Multi Process Meter Instruction Manual
12
Isolated 4-20 mA Transmitter Output
OUTPUT
SOURCE
Process variable (PV), max, min, set points 1-8, Modbus
input, or manual control mode.
SCALING RANGE 1.000 to 23.000 mA for any display range.
CALIBRATION Factory calibrated: 4.000 to 20.000 = 4-20 mA output.
ANALOG OUT
PROGRAMMING
23.000 mA maximum for all parameters:
Overrange, underrange, max, min, and break.
ACCURACY ± 0.1% of span ± 0.004 mA.
TEMPERATURE
DRIFT
0.4 µA/C max from 0 to 65C ambient,
0.8 µA/C max from -40 to 0C ambient.
Note: Analog output drift is separate from input drift.
ISOLATED
TRANSMITTER
POWER SUPPLY
Terminals I+ & R: 24 VDC 10%. May be used to power the
4-20 mA output or other devices. Refer to Figure 5 on page
17 and Figure 16 on page 23.
All models rated @ 40 mA max.
EXTERNAL LOOP
POWER SUPPLY
35 VDC maximum.
OUTPUT LOOP
RESISTANCE
Power supply Minimum Maximum
24 VDC 10 700
35 VDC (external) 100 1200
Modbus
®
RTU Serial Communications
SLAVE ID 1 – 247 (Meter address).
BAUD RATE 300 – 19,200 bps.
TRANSMIT
TIME DELAY
Programmable between 0 and 199 ms.
DATA 8 bit (1 start bit, 1 or 2 stop bits).
PARITY Even, Odd, or None with 1 or 2 stop bits.
BYTE-TO-BYTE
TIMEOUT
0.01 – 2.54 second.
TURN AROUND
DELAY
Less than 2 ms (fixed).
Note: Refer to the Modbus Register Tables located at www.dwyer-inst.com for
details.
Multi Process Meter Instruction Manual
13
COMPLIANCE INFORMATION
Safety
UL & c-UL LISTED USA & Canada
UL 508 Industrial Control Equipment.
UL FILE NUMBER E212517
FRONT PANEL UL Type 4X, NEMA 4X, IP65; panel gasket provided.
LOW VOLTAGE
DIRECTIVE
EN 61010-1:2001
Safety requirements for measurement, control, and
laboratory use.
Electromagnetic Compatibility
EMISSIONS
EN 55022:2006/A1:2007
Class A ITE emissions requirements.
Radiated
Emissions
Class A.
AC Mains
Conducted
Emissions
Class A.
IMMUNITY
EN 61326-1:2006
Measurement, control, and laboratory equipment.
EN 61000-6-2:2005
EMC heavy industrial generic immunity standard.
RFI - Amplitude
Modulated
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
±2kV AC mains, ±1kV other.
Electrostatic
Discharge
±4kV contact, ±8kV air.
RFI - Conducted
10V, 0.15-80 MHz, 1kHz 80% AM.
AC Surge
±2kV Common, ±1kV Differential.
Surge
1KV (CM).
Power-Frequency
Magnetic Field
3 A/m 70%V for 0.5 period.
Voltage Dips
40%V for 5 & 50 periods.
70%V for 25 periods.
Voltage
Interruptions
<5%V for 250 periods.
Multi Process Meter Instruction Manual
14
Note:
Testing was conducted on MPM 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.dwyer-inst.com
SAFETY INFORMATION
CAUTION: Read complete
instructions prior to
installation and operation
of the meter.
WARNING: Risk of
electric shock or
personal injury.
Warning!
Hazardous voltages exist within enclosure.
Installation and service should be performed only by
trained service personnel.
INSTALLATION
There is no need to remove the meter from its case to complete the
installation, wiring, and setup of the meter for most applications.
Instructions are provided for setting up a 12/24 VDC powered meter to
operate from 12 VDC and for changing the transmitter power supply to
output 5 or 10 VDC instead of 24 VDC, see page 17.
Unpacking
Remove the meter from box. Inspect the packaging and contents for
damage. Report damages, if any, to the carrier.
If any part is missing or the meter malfunctions, please contact your
supplier or the factory for assistance.
Panel Mounting Instructions
Prepare a standard 1/8 DIN panel cutout – 3.622" x 1.772" (92 mm x
45 mm). Refer to Figure 1 below, for more details.
!
Multi Process Meter Instruction Manual
15
Clearance: allow at least 6.0" (152 mm) behind the panel for wiring.
Panel thickness: 0.04" - 0.25" (1.0 mm - 6.4 mm).
Recommended minimum panel thickness to maintain Type 4X
rating: 0.06" (1.5 mm) steel panel, 0.16" (4.1 mm) plastic panel.
Remove the two mounting brackets provided with the meter (back-off the two
screws so that there is ¼" (6.4 mm) or less through the bracket. Slide the
bracket toward the front of the case and remove).
Insert meter into the panel cutout.
Install mounting brackets and tighten the screws against the panel. To
achieve a proper seal, tighten the mounting bracket screws evenly until
meter is snug to the panel along its short side. DO NOT OVER TIGHTEN,
as the rear of the panel may be damaged.
Figure 1. 1/8 DIN Panel Cutout Dimensions
Figure 2. Panel Mounting Details
Panel
Gasket
Mounting
Bracket
Mounting
Screw
Removable
Connectors
3.622" (92 mm)
1.772"
(45mm)
Panel Cutout
to DIN 43700
Square Corners to 0.060"
(1.5mm) Max Radius
A
B
Tolerances:
A
: +0.032 (+0.8mm)
-0.000 (-0.0mm)
B: +0.024 (+0.6mm)
-0.000 (-0.0mm)
Refer to page
16 for mounting
dimensions
Multi Process Meter Instruction Manual
16
Mounting Dimensions
Figure 3. Meter Dimensions - Side View
Figure 4. Meter Dimensions - Top View
N
O
N
C
N
C
C
N
O
C
N
O
N
C
N
C
C
N
O
C
+
-
R
Multi Process Meter Instruction Manual
17
Configuration for 12 or 24 VDC Power Option
Warning!
Do not exceed voltage rating of the selected
configuration.
Meters equipped with the 12/24 VDC power option are shipped
from the factory ready to operate from 24 VDC.
To configure the meter for 12 VDC power:
1. Remove all the connectors.
2. Unscrew the back cover.
3. Slide the back cover about 1 inch.
4. Configure the J9 jumper, located behind the power
connector, for 12 V as shown below.
Figure 5. Jumper Configuration for 12/24 VDC Power
MAIN BOARD
24 VDC
12 VDC
POWER
J9
12 V
24 V
J9 CONFIGURATION
Factory
Default
M-LINK
+
_
Multi Process Meter Instruction Manual
18
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.
Figure 6. Transmitter Supply Voltage Selection
Connections
All connections are made to removable screw terminal connectors
located at the rear of the meter.
Use copper wire with 60°C or 60/75°C insulation
for all line voltage connections. Observe all safety
regulations. Electrical wiring should be performed
in accordance with all applicable national, state,
and local codes to prevent damage to the meter
and ensure personnel safety.
Multi Process Meter Instruction Manual
19
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 Dwyer
Instruments, Inc.’s expansion modules, cables,
or meters to the RJ45 M-LINK connector.
Otherwise damage will occur to the equipment
and the meter.
Figure 7. Connector Labeling for Fully Loaded Meter
Power Connections
Power connections are made to a two-terminal connector labeled
POWER on Figure 7 on page 19. The meter will operate regardless of DC
polarity connection. The + and - symbols are only a suggested wiring
convention.
Figure 8. Power Connections
AC or DC
POWER
Required External Fuse:
5 A max, 250 V Slow Blow
POWER
+
-
Multi Process Meter Instruction Manual
20
Signal Connections
Signal connections are made to a six-terminal connector labeled
SIGNAL on Figure 7. The COM (common) terminal is the return for the
4-20 mA and the 10 V input signals.
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 9. Transmitters Powered by Internal Supply
Figure 10. 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.
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