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flow transmitter for hvac systems



DPT-Flow is a flow transmitter that provides an easy way to measure the flow rate on centrifugal fans or in a duct system. One device is suitable for a range of fan types. It can also be used with several different measurement probes such as FloXact™ or pitot tube, and air dampers.



The DPT-Flow can be used to measure the airflow on centrifugal fans or as a transmitter to regulate the airflow in a duct or on the selected fan or blower. It can also be used in a duct system or in air-handling units as an on-site display for flow.



The DPT-Flow is an ideal instrument for airflow monitoring and control, and fan and blower control.

Technical Specifications

Accuracy (from applied pressure): (models 1000 and 2000)

Accuracy (from applied pressure): (models 5000 and 7000)

Zero point calibration:

Measuring units:

Supply voltage:

Power consumption:

Output signals for pressure and airflow (selectable by jumper):

Operating temperature:

Response time:

Protection standard:

Pressure < 125 Pa = 1 % + ±2 Pa

Pressure > 125 Pa = 1 % + ±1 Pa

Pressure < 125 Pa = 1.5 % + ±2 Pa

Pressure > 125 Pa = 1.5 % + ±1 Pa

automatic with autozero element (-AZ) or by pushbutton

Pressure: Pa, kPa, mbar, inchWC, mmWC, psi Flow: m3/s, m3/h, cfm, l/s, m/s, ft/min

24 VAC ±10 % / 24 VDC ±10 %

< 1.0 W -40C model: <4.0 W when <0 °C

0…10 VDC

4…20 mA

-20…+50 °C (with autozero calibration -5...+50 °C) -40…+50 °C (-40C model)

1…20 s



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