HK Instruments DPT-Dual-MOD-AHU-D 差压变送器 (-250...2500 & -250...7000 Pa)

Communication: 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

Measuring units: Pressure: Pa, kPa, mbar, inchWC, mmWC, psi; Flow: m3/s, m3/hr, cfm, l/s, m/s, ft/min

Supply voltage: 24 VDC ±10 % / 24 VAC ±10 %

Power consumption: < 1.3 W

Output signal: via Modbus

Operating temperature: -20…+50 °C

Response time: 1...20 s selectable via menu

Protection standard: IP54