Regular price
Sale price
Unit price
Shipping calculated at checkout.

DPT-Flow is a flow transmitter that provides a new and easy way to measure the flow rate on centrifugal fans.

One device is suitable for a range of different fan types. It also provides an easy way to measure flow rate in a duct system. The device is supplied with an optional FloXactTM averaging measurement probe.


The DPT-Flow is designed for air handling units to measure the air flow on centrifugal fans. The DPT-Flow can be used as an on-site display for flow or as a transmitter to regulate the air flow on a selected fan or blower.

The DPT-Flow can also be used in the duct system or in air handling units as an on-site display for flow or as a transmitter to regulate the air flow in a duct. The device can be used with several different measurement probes such as FloXactTM or pitot tube, and air dampers. The requirement is that the K-value of the measurement probe or damper is known.

Watch a video about how to configure DPT-Flow


Technical details

Accuracy (from applied pressure):
(models 1000 and 2000)
Pressure < 125 Pa = 1 % + ±2 Pa
Pressure > 125 Pa = 1 % + ±1 Pa
Accuracy (from applied pressure):
(models 5000 and 7000)
Pressure < 125 Pa = 1.5 % + ±2 Pa
Pressure > 125 Pa = 1.5 % + ±1 Pa
Zero point calibration: automatic with autozero element (-AZ) or by pushbutton
Measuring units: Pressure: Pa, kPa, mbar, inchWC, mmWC, psi
Flow: m3/s, m3/hr, cfm, l/s, m/s, ft/min
Supply voltage: 24 VAC ±10 % / 24 VDC ±10 %
Power consumption: < 1,0 W
Output signals for pressure and air flow (selectable by jumper): 0…10 VDC, Load R minimum 1 kΩ or 4…20 mA, maximum load 500 Ω
Operating temperature: -20…+50 °C (with autozero calibration -5...+50 °C)
-40…+50 °C (-40C model)
Response time: 1...20 s
Protection standard: IP54