Dwyer Series DM-2000 Differential Pressure Transmitter for Air &
Gases
Product Introduction
The Dwyer Series DM-2000 Differential Pressure Transmitter is
engineered to measure air and compatible gas pressures, delivering
a standard 4-20 mA output signal for seamless integration with
industrial control systems. Its housing is designed to fit the same
cutout as a standard Magnehelic gauge, enabling straightforward
retrofitting. Factory-calibrated for specific pressure ranges, this
transmitter features glass-filled plastic construction with
integrated pressure connections for quick installation. Digital
push-button zero and span adjustments simplify field calibration,
while an optional 3.5-digit LCD displays process values in
selectable engineering units, making it ideal for HVAC, cleanroom,
and industrial monitoring applications.
Key Features
Magnehelic -Compatible Mounting
Direct replacement for standard Magnehelic gauges, using identical
cutout dimensions for easy retrofit.
Reliable Pressure Sensing
Measures air and non-combustible gases with ±1% F.S. accuracy at
70°F.
Stable performance with ±1% F.S. drift per year.
User-Friendly Calibration
Digital push-button zero/span adjustments replace traditional
potentiometers for precision tuning.
Field-selectable engineering units (4-6 options) via single button.
Optional Visual Display
3.5-digit LCD (0.7" height) shows real-time pressure values in psi,
inH₂O, mmH₂O, kPa, mbar, or Pa.
Robust Construction
Glass-filled plastic housing with integrated 1/8" I.D. tubing
connections for durability.
Withstands 10 psig (0.69 bar) pressure limits and -6.67°C to 48.9°C
operating temperatures.
Industrial Compatibility
2-wire 10-35 VDC power supply with 4-20 mA output, supporting up to
1250 ohm loop resistance.
Screw-type terminal block for secure electrical connections.
Dwyer Series DM2000 Specifications
Service:Air and non-combustible, compatible gases.
Wetted Materials:Consult Factory.
Accuracy:±1% F.S. at 70°F.
Stability:+1% F.S./yr.
Temperature Limits:20 to 120°F (-6.67 to 48.9°C).
Pressure Limits:10 psig (0.69 bar).
Thermal Effect:±0.055% F.S./°F (0.099% F.S./°C).
Power Requirements:10-35 VDC (2 wire).
Output Signal:4 to 20 mA.
Zero and Span Adjustments:Digital push-button zero and span.
Loop Resistance:DC: 0-1250 ohms 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).
The Dwyer Series DM2000 Differential Pressure Transmitter senses
the pressure of air and compatible gases and sends a standard 4-20
mA output signal. The DM2000 housing is specifically designed to
mount in the same diameter cutout as a standard Magnehelic® gage. A
wide range of models are available factory calibrated to specific
ranges.
Pressure connections are inherent to the glass filled 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 bush button allows field selection of 4
to 6 engineering units depending on range.
