Dwyer Series DM-2000 Differential Pressure Transmitter

Product Overview

The Dwyer Series DM-2000 Differential Pressure Transmitter is designed to sense the pressure of air and compatible gases, outputting a standard 4-20 mA signal. Its housing is engineered for direct mounting into the same diameter cutout as a standard Magnehelic® gage, simplifying field upgrades. The device offers a wide range of factory-calibrated models for specific applications. Pressure connections are integrated into the glass-filled plastic molded housing, ensuring quick and easy installation. Digital push-button zero and span controls facilitate straightforward calibration, replacing traditional turn-potentiometers. An optional 3.5-digit LCD display shows process and engineering units, with a single push button allowing selection of 4 to 6 engineering units based on the selected range.

Benefits and Features

• Zero and span controls enable easy calibration and reduce setup time for monitoring.
• Tamper-proof button configuration prevents accidental setting changes.
• Quick response to pressure changes ensures timely signaling and alerts for critical situations.
• An easy-to-read LCD display provides immediate local alerts, facilitating quicker corrective action to resolve issues.
• The unit's size is identical to the Magnehelic® gage, simplifying field upgrades by minimizing installation steps.
• The 4-20 mA output allows for seamless integration into Building Automation Systems.

Applications

• Differential pressure across filters
• Fan control
• Static pressures in ducts or buildings

Specifications

Dimensions

Diagram showing the dimensions of the DM-2000 transmitter. Key dimensions include:

• High Pressure Port
• Low Pressure Port
• Overall diameter of approximately 4-3/4 inches [120.65 mm]
• Depth of approximately 1-11/16 inches [42.86 mm]
• Various port and mounting hole dimensions are indicated with measurements in inches and millimeters.

Wiring Diagram

A wiring diagram illustrates the connection of the DM-2000 transmitter to a receiver. The diagram shows:

• The DM-2000 transmitter with positive (+) and negative (-) terminals.
• A receiver with positive (+) and negative (-) terminals.
• The transmitter's positive terminal connected to the receiver's positive terminal.
• The transmitter's negative terminal connected to the receiver's negative terminal.
• A 2-wire connection configuration.
• A power supply (10-35 VDC) connected in parallel with the receiver, with the positive side of the power supply connected to the positive terminal of the receiver and the negative side of the power supply connected to the negative terminal of the receiver.

How to Order

To construct a product code, use the following characters:

DM: Differential pressure transmitter

GAGE BACKGROUND COLOR:

• -20: Black
• -21: Light grey

OPTIONS:

• AT: Aluminum tag
• LCD: LCD display
• FC: Factory calibration certificate
• NIST: NIST traceable calibration certificate

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

Example product code construction: DM-20-01-AT

Accessories

Order Online

Visit dwyer-inst.com/Product/SeriesDM-2000 to order.