Dwyer Instruments Series APM User manual

DWYER INSTRUMENTS, INC.
PO Box 373 • Michigan City IN 46360 USA
Tel [phone] • Fax [phone]
www.dwyer-inst.com
Analog Panel Meter
Series APM
Instruction Manual
0-20 mA, 4-20 mA, 0-5 V, 1-5 V, 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 Level Applications – Single Input
Isolated 24 VDC @ 200 mA Transmitter Power Supply
Signal Input Conditioning for Flow & Round Horizontal Tanks
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 Programmable Exponent
Multi-Pump Alternation Control
2 or 4 Relays + Isolated 4-20 mA Output for Rate or Total
External 4-Relays & Digital I/O Expansion Modules
RS-232 & RS-422/485 Serial Communication Options
Modbus®RTU Communication Protocol Standard
Tare Function
Bulletin: L-APM

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 dis-
claims any implied warranties of merchantability or fitness for a par-
ticular purpose.
!
CAUTION: Read complete
instructions prior to instal-
lation and operation of the
meter.
WARNING: Risk of
electric shock or
personal injury.
Warning
This product is not recommended for life support applications or ap-
plications 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 ma-
terial 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 val-
ue, repair, or replacement of the defective unit.
Registered Trademarks
All trademarks mentioned in this document are the property of their re-
spective owners.
© 2008-2011 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 ----------------------------------------------------------------------9
Rate/Totalizer -------------------------------------------------------------------- 10
Relays ------------------------------------------------------------------------------ 11
Isolated 4-20 mA Transmitter Output ------------------------------------ 12
Modbus®RTU Serial Communications---------------------------------- 13
PMA-12 Digital Input & Output Expansion Module------------------ 13
COMPLIANCE INFORMATION ---------------------------------------- 14
Safety ------------------------------------------------------------------------------- 14
Electromagnetic Compatibility--------------------------------------------- 14
SAFETY INFORMATION ------------------------------------------------ 15
INSTALLATION ------------------------------------------------------------ 16
Unpacking------------------------------------------------------------------------- 16
Panel Mounting Instructions------------------------------------------------ 16
Configuration for 12 or 24 VDC Power Option------------------------ 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
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
Front Panel Buttons and Status LED Indicators --------------------- 28
Display Functions and Messages----------------------------------------- 29
Main Menu ------------------------------------------------------------------------ 33
Setting Numeric Values ------------------------------------------------------ 34

Analog Panel Meter Instruction Manual
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Reset Menu (reset) ------------------------------------------------------------ 34
Control Menu (Contrl)-------------------------------------------------------- 34
Setting Up the Rate/Totalizer Meter (setup) --------------------------- 35
Setting the Input Signal (input) ------------------------------------------ 36
Setting the Totalizer Features (total) ---------------------------------- 36
Dual-Scale for Level Application------------------------------------------ 37
Setting the Decimal Point (dEc pt) -------------------------------------- 38
Programming the Rate/Totalizer (prog) -------------------------------- 39
Multi-Point Calibration & Scaling-------------------------------------- 40
Panel Meter Pro Software ---------------------------------------------- 40
Scaling the Meter (SCALE) ---------------------------------------------- 41
Time Base, Total Conversion Factor & Total Reset-------------- 43
Calibrating the Meter with External Source (Cal)----------------- 44
Setting the Display Parameter & Intensity (dsplay) ----------------- 45
Display Setup Menu --------------------------------------------------------- 46
Character Set for Engineering Units Display (d unit)-------------- 47
Setting the Relay Operation (relay) ------------------------------------- 48
Relay Assignment (Assign) ----------------------------------------------- 49
Setting the Relay Action ---------------------------------------------------- 50
Programming Set and Reset Points ------------------------------------- 51
Setting Fail-Safe Operation ------------------------------------------------ 51
Programming Time Delay -------------------------------------------------- 51
Relay Action for Loss of 4-20 mA Input (Loop Break)--------------- 51
Relay and Alarm Operation Diagrams ----------------------------------- 52
High Alarm Operation (Set > Reset) ------------------------------------- 52
Low Alarm Operation (Set < Reset)-------------------------------------- 53
High Alarm with Fail-Safe Operation (Set > Reset) ------------------ 54
Low Alarm with Fail-Safe Operation (Set < Reset)------------------- 55
Pump Alternation Control Operation------------------------------------- 56
Rate Relay Sampling Operation ------------------------------------------ 57
Total Relay Sampling Operation------------------------------------------ 57
Signal Loss or Loop Break Relay Operation--------------------------- 58
Time Delay Operation ------------------------------------------------------- 59
Relay Operation Details ------------------------------------------------------ 60
Overview------------------------------------------------------------------------ 60
Relays Auto Initialization---------------------------------------------------- 60
Fail-Safe Operation ---------------------------------------------------------- 60
Front Panel LEDs------------------------------------------------------------- 61
Latching and Non-Latching Relay Operation -------------------------- 61
Non-Latching Relay (Auto)------------------------------------------------- 62
Non-Latching Relay (A-nman) --------------------------------------------- 62
Latching Relay (LatcH) ----------------------------------------------------- 62
Latching Relay (Lt-Clr)---------------------------------------------------- 63

Analog Panel Meter Instruction Manual
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Acknowledging Relays ------------------------------------------------------ 63
Pump Alternation Control Applications (Altern) --------------------- 64
Setting Up the Interlock Relay (Force On) Feature ------------------ 67
Scaling the 4-20 mA Analog Output (Aout) ---------------------------- 68
Setting Up the Password (pass) ------------------------------------------- 69
Protecting or Locking the Meter------------------------------------------- 69
Total Reset Password & Non-Resettable Total ----------------------- 70
Making Changes to a Password Protected Meter-------------------- 71
Disabling Password Protection-------------------------------------------- 71
Advanced Features Menu---------------------------------------------------- 72
Advanced Features Menu & Display Messages ---------------------- 73
Noise Filter (filter) -------------------------------------------------------- 76
Noise Filter Bypass (bypass)---------------------------------------------- 76
Modbus®RTU Serial Communications (serial)--------------------- 77
Select Menu (SElEct) ------------------------------------------------------- 78
Signal Input Conditioning (Functn) -------------------------------------- 78
Low-Flow Cutoff (CutofF) -------------------------------------------------- 81
Analog Output Programming (AoutPr)---------------------------------- 81
Programmable Function Keys User Menu (user)-------------------- 82
Tare (tare)--------------------------------------------------------------------- 83
Internal Source Calibration (ICAL) --------------------------------------- 83
Meter Copy Function (Copy) ----------------------------------------------- 86
METER OPERATION ----------------------------------------------------- 88
Front Panel Buttons Operation -------------------------------------------- 88
Function Keys Operation ---------------------------------------------------- 88
Maximum/Minimum Readings---------------------------------------------- 89
TROUBLESHOOTING---------------------------------------------------- 90
Diagnostics Menu (diag)----------------------------------------------------- 90
Determining Software Version -------------------------------------------- 90
Reset Meter to Factory Defaults ------------------------------------------- 91
Factory Defaults & User Settings----------------------------------------- 92
Troubleshooting Tips --------------------------------------------------------- 96
Alphabetical List of Display Functions & Messages --------------- 97

Analog Panel Meter Instruction Manual
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Table of Figures
Figure 1: 1/8 DIN Panel Cutout and Mounting................................... 16
Figure 2: Meter Dimensions - Side View............................................ 17
Figure 3: Meter Dimensions - Top View............................................. 17
Figure 4: Jumper Configuration for 12/24 VDC Power..................... 18
Figure 5: Transmitter Supply Voltage Selection............................... 19
Figure 6: Connector Labeling for Fully Loaded APM....................... 20
Figure 7: Power Connections............................................................. 20
Figure 8: Transmitters Powered by Internal Supply......................... 21
Figure 9: Transmitter Powered by Ext. Supply or Self-Powered..... 21
Figure 10: Voltage Input Connections ............................................... 22
Figure 11: Relay Connections ............................................................ 22
Figure 12: AC and DC Loads Protection ........................................... 23
Figure 13: Low Voltage DC Loads Protection................................... 23
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 ... 63
Figure 20: Meter Copy Connection .................................................... 86
Figure 21:1/8 DIN Panel Cutout Template ....................................... 105

Analog Panel Meter Instruction Manual
7
INTRODUCTION
The APM is a multipurpose, 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 opera-
tion.
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 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-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-09 Suppressor (snubber): 0.01 µF/470 , 250 VAC
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)

Analog Panel Meter Instruction Manual
8
SPECIFICATIONS
Except where noted all specifications apply to operation at +77°F (+25°C).
General
DISPLAY Main 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
The main (Big) and small (Little) displays may be assigned
to rate, total, grand total, alternate rate & total, max/min,
units (small display only), set points, and Modbus®input.
PROGRAMMING
METHODS
Four front panel buttons, digital inputs, PC with Panel Meter
Pro software, 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 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 jumper selectable 12/24 VDC 10%, 15 W max.
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 5% @ 200 mA max (standard),
(12/24 VDC powered models rated @ 100 mA max).
5 or 10 VDC @ 50 mA max, selectable with internal jumper J4.

Analog Panel 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 Installa-
tion Overvoltage Category III.
ENVIRONMENTAL Operating temperature range: -40 to 149°F (-40 to 65°C).
Storage temperature range: -40 to 185°F (-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 com-
munication 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 1 year parts & labor.
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
0.003% of calibrated span/°F max from 32 to 149°F
(0.005% from 0 to 65°C), 0.006% of calibrated span/°F max
from -40 to 32°F (0.01% from -40 to 0°C)
SIGNAL INPUT
CONDITIONING
Linear, square root, programmable exponent, or round
horizontal tank volume calculation.
MULTI-POINT
LINEARIZATION
2 to 32 points.
PROGRAMMA-
BLE EXPONENT
1.0001 to 2.9999.
LOW-FLOW
CUTOFF
0-999999 (0 disables cutoff function).

Analog Panel Meter Instruction Manual
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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 1 M.
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.
Rate/Totalizer
DISPLAY
ASSIGNMENT
The main (Big) and small (Little) displays may be assigned
to rate, total, grand total, alternate R & T, units, and set
point.
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 illumi-
nated while displaying total or grand total.
Up to 999,999,999 with total-overflow feature. “oF” is dis-
played to the left of total overflow and ▲LED is illuminated.
ALTERNATING
DISPLAY
Either display may be programmed to alternate between
rate and total or rate and grand total every 10 seconds.
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 mul-
tiplier 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 indica-
tion.

Analog Panel Meter Instruction Manual
11
PROGRAMMA-
BLE 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 automati-
cally 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.
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).
Latching (requires manual acknowledge).
Sampling (based on time).
Pump alternation control (2 to 8 relays).
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 in-
put 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
(L).
Note: Front panel button or digital input may be assigned to
acknowledge relays programmed for manual reset.

Analog Panel Meter Instruction Manual
12
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.
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
0.22 µA/°F max from 32 to 149°F
(0.4 µA/°C from 0 to 65°C),
0.44 µA/°F max from -40 to 32°F
(0.8 µA/°C from -40 to 0°C).
Note: Analog output drift is separate from input drift.
ISOLATED
TRANSMITTER
POWER SUPPLY
Terminals I+ & R: 24 VDC 5% @ 40 mA maximum; may
be used to power the 4-20 mA output or other devices.
Refer to Figure 6 on page 20 and Figure 14 on page 24.
EXTERNAL LOOP
POWER SUPPLY
35 VDC maximum.
OUTPUT LOOP
RESISTANCE
Power supply Minimum Maximum
24 VDC 10 700 
35 VDC (external) 100 1200 

Analog Panel Meter Instruction Manual
13
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
or transmitter always on for RS-422 communication.
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.
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.

Analog Panel Meter Instruction Manual
14
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.

Analog Panel Meter Instruction Manual
15
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 instal-
lation 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
16
INSTALLATION
There is no need to remove the meter from its case to complete
the installation, wiring, and setup of the meter for most applica-
tions. Instructions are provided for setting up a 12/24 VDC po-
wered 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 18.
Unpacking
Remove the meter from box. Inspect the packaging and con-
tents 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 me-
ter is snug to the panel along its short side. DO NOT OVER TIGHTEN, as
the rear of the panel may be damaged.
Note: See Figure 21 on page 105 for 1/8 DIN Panel Cutout Template
3.622" (92mm)
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)
Panel
Gasket
Mounting
Bracket
Mounting
Screw
Removable
Connectors
Figure 1: 1/8 DIN Panel Cutout and Mounting

Analog Panel Meter Instruction Manual
17
Mounting Dimensions
1.76"
(45 mm)
0.59"
(15 mm)
4.77"
(121 mm)
2.45"
(62 mm)
5.05"
(128 mm)
Figure 2: Meter Dimensions - Side View
3.61"
(92 mm)
4.17"
(106 mm)
4.68"
(119 mm)
Figure 3: Meter Dimensions - Top View

Analog Panel Meter Instruction Manual
18
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.
MAIN BOARD
24 VDC
12 VDC
POWER
J9
12 V 24 V
J9 CONFIGURATION
Factory
Default
M-LINK
+
_
Figure 4: Jumper Configuration for 12/24 VDC Power

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.
MAIN BOARD
INPUT
SIGNAL
J4
5 V 10 V 24 V
J4 CONFIGURATION
Factory Default
P+
P-
mA+
COM
V+
Figure 5: 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 140°F (60°C) or 140/167°F
(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 con-
nectors 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.
DW1815
RI- I+
MA OUT
132
POWER
+-
SIGNAL
P- COMP+ V+ mA+
3412 5
M-LINK
CNONO NC NC C
RELAY4 RELAY3
4365 21
CNONO NC NC C
RELAY2 RELAY1
4365 21
123 45678
21
Figure 6: Connector Labeling for Fully Loaded APM
Power Connections
Power connections are made to a two-terminal connector labeled POWER
on Figure 6. The meter will operate regardless of DC polarity connection.
The + and - symbols are only a suggested wiring convention.
AC or DC
POWER
Required External Fuse:
5 A max, 250 V Slow Blow
POWER
+-
Figure 7: Power Connections