Dwyer Instruments APM-100 User manual

Bulletin: L-APM
DWYER INSTRUMENTS, INC.
PO Box 373 • Michigan City IN 46360 USA
Phone: [phone]
Fax: [phone]
www.dwyer-inst.com
Series APM Analog Panel Meter
Instruction Manual
•0-20 mA, 4-20 mA, 0-5 V, 1-5 V, ±10 V Inputs
•NEMA 4X, IP65 Front
•Input Power Options Include 85-265 VAC or 12-24 VDC
•Large Dual-Line 6-Digit Display, 0.60" & 0.46"
•Sunlight Readable Display Models
•Isolated 24 VDC Transmitter Power Supply
•Signal Input Conditioning for Flow
•Programmable Displays & Function Keys
•Rate Displayed as Units per Second, Minute, Hour, or Day
•Total, Grand Total or Non-Resettable Grand Total
•9-Digit Totalizer with Total Overflow Feature
•32-Point Linearization, Square Root or Exponential Linearization
•Multi-Pump Alternation Control
•2 or 4 Relays + Isolated 4-20 mA Output for Rate/Total/Grand Total
•External 4-Relay & Digital I/O Expansion Modules
•RS-232 & RS-485 Serial Communication Options
•Modbus®RTU Communication Protocol Standard
•Free USB Programming Software & Cable

Analog Panel 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.
© 2008-2019 Dwyer Instruments, Inc. All rights reserved.
www.dwyer-inst.com
!

Analog Panel Meter Instruction Manual
3
Table of Contents
INTRODUCTION ------------------------------------------------------------ 7
ORDERING INFORMATION --------------------------------------------- 7
SPECIFICATIONS ---------------------------------------------------------- 8
General------------------------------------------------------------------------------- 8
Process Input -------------------------------------------------------------------- 10
Rate/Totalizer -------------------------------------------------------------------- 11
Relays ------------------------------------------------------------------------------ 12
Isolated 4-20 mA Transmitter Output ------------------------------------ 13
Modbus®RTU Serial Communications---------------------------------- 13
PMA-12 Digital Input & Output Expansion Module------------------ 14
Panel Meter Pro Software---------------------------------------------------- 14
COMPLIANCE INFORMATION ----------------------------------------15
Safety ------------------------------------------------------------------------------- 15
Electromagnetic Compatibility--------------------------------------------- 15
SAFETY INFORMATION ------------------------------------------------16
INSTALLATION ------------------------------------------------------------17
Unpacking------------------------------------------------------------------------- 17
Panel Mounting Instructions------------------------------------------------ 17
Mounting Dimensions ------------------------------------------------------- 18
Transmitter Supply Voltage Selection (P+, P-) ----------------------- 19
Connections---------------------------------------------------------------------- 19
Connectors Labeling--------------------------------------------------------- 20
Power Connections ---------------------------------------------------------- 20
Signal Connections ---------------------------------------------------------- 21
Modbus RTU Serial Communications ----------------------------------- 22
Relay Connections ----------------------------------------------------------- 22
Switching Inductive Loads-------------------------------------------------- 23
RC Networks Available from Dwyer Instruments, Inc.----------- 23
F4 Digital Input Connections----------------------------------------------- 24
4-20 mA Output Connections---------------------------------------------- 24
Analog Output Transmitter Power Supply------------------------------ 24
External Relay & Digital I/O Connections ------------------------------ 25
Interlock Relay Feature ----------------------------------------------------- 26
SETUP AND PROGRAMMING ----------------------------------------27
Panel Meter Pro Software---------------------------------------------------- 28
Panel Meter Pro Installation ----------------------------------------------- 28
Front Panel Buttons and Status LED Indicators --------------------- 30
Display Functions and Messages----------------------------------------- 31

Analog Panel Meter Instruction Manual
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Main Menu ------------------------------------------------------------------------ 35
Setting Numeric Values ------------------------------------------------------ 36
Setting Up the Rate/Totalizer Meter (setup) --------------------------- 37
Setting the Input Signal (Input) ------------------------------------------ 38
Setting the Totalizer Features (total) ---------------------------------- 38
Setting the Input Units or Custom Tags (units)---------------------- 39
Setting the Decimal Point (dEc pt) -------------------------------------- 40
Programming the Rate/Totalizer (prog) -------------------------------- 40
Multi-Point Calibration & Scaling-------------------------------------- 41
Input Calibration Method (InCAL) ------------------------------------- 41
Scaling the Meter (SCALE) ---------------------------------------------- 42
Calibrating the Meter with External Source (Cal)----------------- 43
Time Base, Total Conversion Factor & Total Reset-------------- 44
Setting the Display Parameter & Intensity (dsplay) ----------------- 45
Display Setup Menu --------------------------------------------------------- 46
Setting the Relay Operation (relay) ------------------------------------ 47
Relay Assignment (Assign) ----------------------------------------------- 48
Setting the Relay Action ---------------------------------------------------- 49
Programming Set and Reset Points ------------------------------------- 50
Setting Fail-Safe Operation ------------------------------------------------ 50
Programming Time Delay -------------------------------------------------- 50
Relay Action for Loss of 4-20 mA Input (Loop Break)--------------- 50
Relay and Alarm Operation Diagrams----------------------------------- 51
High Alarm Operation (Set > Reset)------------------------------------- 51
Low Alarm Operation (Set < Reset)-------------------------------------- 52
High Alarm with Fail-Safe Operation (Set > Reset) ------------------ 53
Low Alarm with Fail-Safe Operation (Set < Reset)------------------- 54
Pump Alternation Control Operation------------------------------------- 55
Rate Relay Sampling Operation ------------------------------------------ 56
Total Relay Sampling Operation------------------------------------------ 56
Signal Loss or Loop Break Relay Operation--------------------------- 57
Time Delay Operation ------------------------------------------------------- 58
Relay Operation Details ------------------------------------------------------ 59
Overview------------------------------------------------------------------------ 59
Relays Auto Initialization---------------------------------------------------- 59
Fail-Safe Operation ---------------------------------------------------------- 59
Front Panel LEDs------------------------------------------------------------- 60
Latching and Non-Latching Relay Operation -------------------------- 60
Non-Latching Relay (Auto)------------------------------------------------- 61
Non-Latching Relay (A-nman) --------------------------------------------- 61
Latching Relay (LatcH) ----------------------------------------------------- 61
Latching Relay (Lt-Clr)---------------------------------------------------- 62
Acknowledging Relays ------------------------------------------------------ 62

Analog Panel Meter Instruction Manual
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Pump Alternation Control Applications (Altern) --------------------- 63
Setting Up the Interlock Relay (Force On) Feature ------------------ 66
Scaling the 4-20 mA Analog Output (Aout) ---------------------------- 67
Reset Menu (reset) ------------------------------------------------------------ 68
Control Menu (Contrl)-------------------------------------------------------- 68
Setting Up the Password (pass) ------------------------------------------- 68
Protecting or Locking the Meter------------------------------------------- 69
Total Reset Password & Non-Resettable Total ----------------------- 69
Making Changes to a Password Protected Meter-------------------- 70
Disabling Password Protection-------------------------------------------- 70
Advanced Features Menu---------------------------------------------------- 71
Advanced Features Menu & Display Messages ---------------------- 71
Noise Filter (filter) -------------------------------------------------------- 74
Noise Filter Bypass (bypass)---------------------------------------------- 74
Rounding Feature (round) ------------------------------------------------- 74
Modbus RTU Serial Communications (serial) ---------------------- 75
Select Menu (SElEct) ------------------------------------------------------- 76
Signal Input Conditioning (Functn) -------------------------------------- 76
Low-Flow Cutoff (CutofF) -------------------------------------------------- 78
Totalizer Count Up/Down (Count)---------------------------------------- 78
Analog Output Programming (AoutPr)---------------------------------- 79
Programmable Function Keys User Menu (user)-------------------- 80
Internal Source Calibration (ICAL) --------------------------------------- 81
METER OPERATION -----------------------------------------------------84
Front Panel Buttons Operation -------------------------------------------- 84
Function Keys Operation ---------------------------------------------------- 84
F4 Operation --------------------------------------------------------------------- 85
Maximum/Minimum Readings---------------------------------------------- 85
TROUBLESHOOTING----------------------------------------------------86
Diagnostics Menu (diag)----------------------------------------------------- 86
Determining Software Version -------------------------------------------- 86
Reset Meter to Factory Defaults ------------------------------------------- 87
Factory Defaults & User Settings----------------------------------------- 88
Troubleshooting Tips --------------------------------------------------------- 91

Analog Panel Meter Instruction Manual
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Table of Figures
Figure 1: 1/8 DIN Panel Cutout and Mounting................................... 17
Figure 2: Meter Dimensions - Side View............................................ 18
Figure 3: Meter Dimensions - Top View............................................. 18
Figure 4: Transmitter Supply Voltage Selection............................... 19
Figure 5: Connector Labeling for Fully Loaded APM....................... 20
Figure 6: Power Connections............................................................. 20
Figure 7: Transmitter Powered by Internal Supply........................... 21
Figure 8: Transmitter Powered by Ext. Supply or Self-Powered..... 21
Figure 9: Voltage Input Connections................................................. 22
Figure 10: Relay Connections ............................................................ 22
Figure 11: AC and DC Loads Protection ........................................... 23
Figure 12: Low Voltage DC Loads Protection................................... 23
Figure 13: F4 Digital Input Connections............................................ 24
Figure 14: 4-20 mA Output Connections........................................... 24
Figure 15: Expansion Modules & DIN Rail Mounting Kit.................. 25
Figure 16: External Relays Module Connections ............................. 25
Figure 17: Digital I/O Module Connections ....................................... 26
Figure 18. Interlock Connection......................................................... 26
Figure 19: Acknowledge Relays w/Function Key or Digital Input ... 62

Analog Panel Meter Instruction Manual
7
INTRODUCTION
The APM is a multi-purpose, easy to use rate/totalizer ideal for flow rate, total, and
control 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 specific operation.
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, F4, is
standard.
A fully loaded APM rate/totalizer meter has the following: four SPDT relays, 4-20 mA
output, and two 24 VDC power supplies. The APM capabilities may be enhanced by
adding the following external expansion modules: four SPST relays (creating an eight-
relay rate/totalizer), two digital I/O modules with four inputs and four outputs each, and
RS-232 or RS-485 communication adapters.
The eight relays can be used for alarm indication or process control applications. The
4-20 mA isolated output, Modbus RTU serial communications, and digital I/O options
make the APM an excellent addition to any system.
ORDERING INFORMATION
85-265 VAC
Model
12-24 VDC
Model Options Installed
APM-100
APM-200
No options
APM-101
APM-201
4-20 mA output
APM-120
APM-220
2 relays
APM-121
APM-221
2 relays & 4-20 mA output
APM-140
APM-240
4 relays
APM-141
APM-241
4 relays & 4-20 mA output
Accessories
Model
Description
PMA-01
RS-232 serial adapter
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 Ω, 250 VAC

Analog Panel Meter Instruction Manual
8
SPECIFICATIONS
Except where noted all specifications apply to operation at +25°C.
General
DISPLAY Upper display: 0.6" (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
Display lines 1 & 2 may be assigned to rate, total, grand
total, alternate (rate/total, rate/grand total, rate/units,
total/units, and grand total/units), set points, max/min, units
(line 2 only), and Modbus input. Additional displays are
available if parameter total is off, and parameter d-SCAL
is on: gross, alternating gross/net, PV1, PV2, and PCT
(refer to MPM instruction manual found on www.dwyer-
inst.com).
PROGRAMMING
METHODS
Four front panel buttons, digital inputs, or PC and Panel
Meter Pro software.
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 and two prevent resetting the totals.
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.
Total: Prevents resetting the total manually
Gtotal: Prevents resetting the grand total manually
NON-VOLATILE
MEMORY
All programmed settings are stored in non-volatile memory
for a minimum of ten years if power is lost.
POWER
OPTIONS
85-265 VAC 50/60 Hz, 90-265 VDC, 20 W max or 12-24
VDC ± 10%, 15 W max
Powered over USB for configuration only.

Analog Panel Meter Instruction Manual
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FUSE Required external fuse: UL Recognized, 5 A max, slow
blow; up to 6 meters may share one 5 A fuse
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.
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

Analog Panel 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 65°
C ambient,
0.01% of calibrated span/°C max from -40 to 0°C ambient
SIGNAL INPUT
CONDITIONING
Linear, square root, programmable exponent, or round
horizontal tank volume calculation
MULTI-POINT
LINEARIZATION
2 to 32 points
PROGRAMMABLE
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
0.01 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
Ω
Current ranges: 50 - 100 Ω(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

Analog Panel Meter Instruction Manual
11
Rate/Totalizer
RATE DISPLAY
INDICATION
-99999 to 999999, lead zero blanking. “R” LED illuminates
while displaying rate.
TOTAL DISPLAY
& TOTAL
OVERFLOW
0 to 999,999; automatic lead zero blanking. “T” LED is
illuminated while displaying total or grand total.
Up to 999,999,999 with total-overflow feature. “oF” is
displayed to the left of total overflow and ▲ LED is
illuminated.
TOTAL
DECIMAL POINT
Up to five decimal places or none:
d.ddddd, d.dddd, d.ddd, d.dd, d.d,or dddddd
Total decimal point is independent of rate decimal point.
TOTALIZER
Calculates total based on rate and field programmable
multiplier to display total in engineering units. Time base
must be selected according to the time units in which the
rate is displayed.
TOTALIZER
ROLLOVER
Totalizer rolls over when display exceeds 999,999,999.
Relay status reflects display.
TOTAL
OVERFLOW
OVERRIDE
Program total reset for automatic with 0.1 second delay
and set point 1 for 999,999
TOTALIZER
PRESETS
Up to eight, user selectable under setup menu. Any set
point can be assigned to total and may be programmed
anywhere in the range of the meter for total alarm
indication.
PROGRAMMABLE
DELAY
ON RELEASE
0.1 and 999.9 seconds; applied to the first relay assigned
to total or grand total.
If the meter is programmed to reset total to zero
automatically when the preset is reached, then a delay will
occur before the total is reset.
TOTAL RESET
Via front panel button, external contact closure on digital
inputs, automatically via user selectable preset value and
time delay, or through serial communications.
TOTAL RESET
PASSWORD
Total and grand total passwords may be entered to
prevent resetting the total or grand total from the front
panel.
NON-RESETTABLE
TOTAL
The grand total can be programmed as a non-resettable
total by entering the password “050873”.
Caution!
Once the Grand Total has been programmed
as “non-resettable” the feature cannot be
disabled.
!

Analog Panel Meter Instruction Manual
12
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 23 for details.
RELAY
ASSIGNMENT
Relays may be assigned to rate, total, or grand total.
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, digital inputs, or PC
1. Automatic reset only (non-latching), when the input
passes the reset point or total is reset to zero.
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.

Analog Panel Meter Instruction Manual
13
Isolated 4-20 mA Transmitter Output
OUTPUT
SOURCE
Rate/process, total, grand total, max, min, set points 1-8, 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% FS ± 0.004 mA
TEMPERATURE
DRIFT
0.4 µA/°C max from 0 to 65°C ambient,
0.8 µA/°C max from -40 to 0°C ambient
Note: Analog output drift is separate from input drift.
ISOLATED
TRANSMITTER
POWER SUPPLY
Terminals I+ & R: 24 VDC ±10%. May be used to power the
4-20 mA output or other devices. Refer toFigure 4 on page
19 and Figure 14 on page 24.
All models rated @ 40 mA max.
EXTERNAL LOOP
POWER SUPPLY
35 VDC maximum
OUTPUT LOOP
RESISTANCE
Power supply Minimum Maximum
24 VDC 10 Ω700 Ω
35 VDC (external) 100 Ω1200 Ω
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.

Analog Panel Meter Instruction Manual
14
PMA-12 Digital Input & Output Expansion Module
CHANNELS
4 digital inputs & 4 digital outputs per module
SYSTEM
Up to 2 modules for a total of 8 inputs & 8 outputs
DIGITAL INPUT
LOGIC HIGH
3 to 5 VDC
DIGITAL INPUT
LOGIC LOW
0 to 1.25 VDC
DIGITAL OUTPUT
LOGIC HIGH
3.1 to 3.3 VDC
DIGITAL OUTPUT
LOGIC LOW
0 to 0.4 VDC
SOURCE
CURRENT
10 mA maximum output current
SINK
CURRENT
1.5 mA minimum input current
+5 V
TERMINAL
To be used as pull-up for digital inputs only
Connect normally open pushbuttons across +5 V & DI 1-4.
Panel Meter Pro Software
SYSTEM
REQUIREMENTS
Microsoft® Windows® XP/Vista/7/8/10
COMMUNICATIONS USB 2.0 (Standard USB A to Micro USB B)
CONFIGURATION Configure meters one at a time

Analog Panel Meter Instruction Manual
15
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 61010-1:2010
Safety requirements for measurement, control, and
laboratory use
Electromagnetic Compatibility
EMISSIONS
EN 55022:2010
Class A ITE emissions requirements
Radiated
Emissions
Class A
AC Mains
Conducted
Emissions
Class A
IMMUNITY
EN 61326-1:2013
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
30 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

Analog Panel Meter Instruction Manual
16
Note:
Testing was conducted on APM 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.
!

Analog Panel Meter Instruction Manual
17
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 changing the
transmitter power supply to output 5 or 10 VDC instead of 24
VDC, see page Error! Bookmark not defined..
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 for more details.
•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 and Mounting
Gasket
Panel
Mounting
Bracket
Mounting
Screw
Micro USB
Connection
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)

Analog Panel Meter Instruction Manual
18
Mounting Dimensions
Figure 2: Meter Dimensions - Side View
Figure 3: Meter Dimensions - Top View
0.39"
(10 mm)
4.18"
(106 mm)
1.72"
(44 mm)
4.77"
(121 mm)
5.07"
(129 mm)
2.41"
(61 mm)
4.41"
(112 mm)
4.18"
(106 mm)
3.61"
(91.5 mm)
Optional
Connectors
Installed

Analog Panel Meter Instruction Manual
19
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 connectors.
2. Unscrew the back cover.
3. Slide the back cover about 1 inch.
4. Configure the J4 jumper, located behind the input signal connector,
for the desired excitation voltage as shown.
Figure 4: Transmitter Supply Voltage Selection
Connections
All connections are made to removable screw terminal connectors
located at the rear of the meter.
Caution!
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.

Analog Panel Meter Instruction Manual
20
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 5: Connector Labeling for Fully Loaded APM
Power Connections
Power connections are made to a two-terminal connector labeled POWER
on Figure 5. The meter will operate regardless of DC polarity connection.
The + and - symbols are only a suggested wiring convention.
Figure 6: Power Connections
AC or DC
POWER
Required External Fuse:
5 A max, 250 V Slow Blow
POWER
+-