High accuracy transmitter with Modbus communication and air flow measurement

DPT-Priima-MOD is a multifunctional high accuracy differential pressure transmitter with Modbus communication and air flow measurement. It is designed for cleanrooms and other demanding applications. DPT-Priima-MOD has a new, extremely accurate sensor and automatic zero point calibration, and optional calibration certificate.


The DPT-Priima-MOD is used for measuring differential pressure and air flow in building automation, HVAC and cleanroom systems. It can also be used with several different measurement probes such as FloXact™ or pitot tube, and air dampers. The most common applications are pressure monitoring in cleanrooms and over the building envelope.

Technical details

Communication: RS-485 Modbus (RTU)
Accuracy (from applied pressure): 0.4 % + ±0.4 Pa
Measuring ranges (Pa): -120...+120 / -240...+240 / -620...+620 / -1240...+1240 / -2490...+2490
Zero point calibration: automatic with autozero element (-AZ), by pushbutton or via Modbus
Measuring units: Pressure: Pa, kPa, mbar, inchWC, mmWC, psi
Flow: m3/s, m3/h, cfm, l/s, m/s, ft/min
Supply voltage: 24 VDC ±10 % / 24 VAC ±10 %
Power consumption: < 1.0 W
Output signal: via Modbus
Operating temperature: -5…+50 °C
Response time: 0.4–20 s
Protection standard: IP54




Product series

Differential pressure transmitter

Model type

High accuracy, with Modbus communication

Zero point calibration

With autozero calibration


With display