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SERIES DM-2000 | DIFFERENTIAL PRESSURE TRANSMITTER
®
BENEFITS/FEATURES
• Zero and span controls provide easy calibration checks and shorter installation time to get device running and monitoring
•Tamper-proofbuttoncongurationpreventsaccidentalsettingchanges
• Quick response to pressure changes means no delay in signaling and alerting to critical situations
• Easy to read LCD display provides immediate local alerts allowing corrective action to be taken quicker to eliminate the
problem from becoming widespread
• Same size as Magnehelic
• 4-20 mA output allows for integration into Building Automation Systems
®
gagesimplieseldupgradetodigitalpressuregagebyreducinginstallationsteps
• Differential pressure across lters
• Fan control
• Static pressures in ducts or buildings
SPECIFICATIONS
Service Air and non-combustible, compatible gases.
Wetted Materials Consult factory.
Accuracy ±1% FS, ±30 Pa model ±4% FS at 70°F.
Stability ±1% FS/yr.
Temperature Limits 20 to 120°F (-6.67 to 48.9°C).
Pressure Limits 10 psig (0.69 bar).
Thermal Effect ±0.055% FS/°F (0.099% FS/°C), ±30 Pa model ±0.13% FS/°F (0.234% FS/°C).
Power Requirements 10-35 VDC (2-wire).
Output Signal 4-20 mA.
Zero and Span Adjustments Digital push-button zero and span.
Loop Resistance DC: 0 to 1250 Ω maximum.
Current Consumption DC: 38 mA maximum.
Electrical Connections Screw-type terminal block.
Display 3.5 digit LCD, 0.7˝ height.
Process Connections 1/8˝ I.D. tubing.
Mounting Orientation Vertical.
Weight 4.8 oz (136 g).
DESCRIPTIONAPPLICATIONS
The Dwyer Series DM-2000 Differential Pressure Transmitter senses
the pressure of air and compatible gases and sends a standard 4-20 mA
output signal. The DM-2000 housing is specically designed to mount in
the same diameter cutout as a standard Magnehelic® gage. A wide range
of models are available factory calibrated to specic ranges. Pressure
connections are inherent to the glass lled plastic molded housing
making installation quick and easy. Digital push-button zero and span
simplify calibration over typical turn-potentiometers. An optional 3.5 digit
LCD shows process and engineering units. A single push button allows
eld selection of 4 to 6 engineering units depending on range.
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DIMENSIONS WIRING DIAGRAM
HIGH PRESSURE PORT
[42.86]
LOW PRESSURE POR
1-1/4
[31.75]
T
7/16
[11.11]
17/32
[13.50]
1-11/16
5/32
[3.97]
Ø4-3/4
[120.65]
HOW TO ORDER
Use the bold characters from the chart below to construct a product code.
DM -20 01 AT
SERIES
DM: Differential pressure transmitter
GAGE BACKGROUND COLOR
-20: Black
-21: Light grey
ACCESSORIES
SERIES
DM-2000
PRESSURE
TRANSMITTER
1
2
RECEIVER
2-wire connections
mA
OPTIONS
AT: Aluminum tag
LCD: LCD display
FC: Factory calibration certicate
NIST: NIST traceable calibration certicate
RANGE
01: 0 to 0.1 in w.c.
02: 0 to 0.25 in w.c.
03: 0 to 0.5 in w.c.
04: 0 to 1 in w.c.
05: 0 to 2 in w.c.
06: 0 to 3 in w.c.
07: 0 to 5 in w.c.
12: 0.25 to 0 to 0.25 in w.c.
13: 0.5 to 0 to 0.5 in w.c.
19: 0.05 to 0 to 0.20 in w.c.
47: 30 to 0 to 30 Pa
POWER
SUPPLY
10-35 VDC
Model Description
A-299
A-300
A-302F-A
A-320-A
A-320-B-SS
A-320-BC
A-464
A-489
SCD-PS
©Copyright 2021 Dwyer Instruments, Inc.
Printed in U.S.A. 6/21 DS-DM-2000 Rev. 3
Important Notice: Dwyer Instruments, Inc. reserves the right to make changes to or discontinue any product or service identied in this publication without notice. Dwyer advises its customers to obtain the
latest version of the relevant information to verify, before placing any orders, that the information being relied upon is current.
Surface mounting bracket
Flat ush mounting bracket
303 SS static pressure tip with mounting ange; for 3/16˝ ID rubber or plastic tubing; 4˝ insertion depth; includes mounting screws
Instrument enclosure
Instrument enclosure, 304 SS, brushed nish, compatible with 2000 Magnehelic
®
gage, DM-2000 differential pressure transmitter
Weatherproof enclosure, ABS, compatible with 2000 Magnehelic® gage, DM-1000 DigiMag® digital differential pressure gage,
DM-2000 differential pressure transmitter, Series 605 (with -SS option), instruments with backwards compatible bezel option
Flush mount kit for Magnehelic® gages
4˝ straight static pressure tip with ange
100-240 VAC/VDC to 24 VDC power supply
DWYER INSTRUMENTS, INC.
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