Differential pressure transmitter designed for air handling units, includes an air flow transmitter.
DPT-Dual-MOD-AHU is especially designed for air handling units, combining two differential pressure transmitters into one device. It offers a possibility to measure pressure from two different points. One of the measurements can be set to show the air flow rate. DPT-Dual-MOD-AHU has a Modbus interface and an Input terminal. When using the Input terminal, temperature transmitters can be replaced with temperature sensors. As a result, you will save in costs of the devices and in the installation costs.
DPT-Dual-MOD-AHU series devices include:
• Multiple measurement units, field selectable via menu, including: Pa, mbar, inchWC, mmWC and psi.
• Input terminal enabling reading of multiple other signals such as temperature or control relays over Modbus
||RS-485 Modbus (RTU)
|Accuracy (from applied pressure):
||Sensor A (-700...7000 Pa):
Pressure < 125 Pa = 1.5 % + ±2 Pa
Pressure > 125 Pa = 1.5 % + ±1 Pa
Sensor B (-250...2500 Pa):
Pressure < 125 Pa = 1 % + ±2 Pa
Pressure > 125 Pa = 1 % + ±1 Pa
|Zero point calibration:
||via Modbus or by pushbutton
||Pressure: Pa, kPa, mbar, inchWC, mmWC, psi
Flow: m3/s, m3/hr, cfm, l/s, m/s, ft/min
||24 VDC ±10 % / 24 VAC ±10 %
||< 1.3 W
||1...20 s selectable via menu