PHD330 Industrial Differential Pressure Transmitter

● Silicon chips on differential pressure module of MEMS integration technology
● Offset function / UI software
● Low-pressure monitoring, high pressure resistance
● RS-485 communication interface(Optional), Modbus RTU protocol
● Physical unit switch(User Interface)：mbar / Pa / hPa / kPa / mmH₂O / mmWS / inH₂O / mmHg
● Square root function

Exhaust emission / Environmental engineering / Air duct / Filter / Monitor differential pressure and environment air flow

Input
Input type：Piezoelectric differential pressure module
Measuring range：±50 ... ±10000 pa

Output
Output：4 ... 20 mA / 0 ... 10 V
Signal connection：3-wire
Modbus：RS-485
Load resistance(Current output)：4 ... 20 mA＜500 Ω / 0 ... 10 V≧100 KΩ
Response time(t63)：≦2 ms
Display type：LCD Module with back light, double line character
Display range：V=Air velocity(at 25°C) / Q=Air quantity(with eYc AFMT)
Digit height：5.56 mm

Environment
Measuring medium：Air
Operating temperature：-20 ... +80°C(Non-display) / 0 ... +50°C(Display)
Operating humidity：0 ... 95%RH(Non-condensing)
Storage temperature：-40 ... +80°C

Accuracy
Accuracy：±2.0% F.S.
Temperature influence：±1.75%(5 ... 55°C)

Electrical
Power supply：AC 24 V ±10% / DC 24 V ±10%
Current consumption：DC 24 V：≦45 mA(Display) / ≦40 mA(Non-display), AC 24 V：≦95 mA(Display) / ≦90 mA(Non-display)
Overvoltage protection：≦DC 40 V
Electrical connection：M12 connector

Installation
Installation：Wall

Protection
IP rating：IP65
Electrical protection：■ Polarity protection ■ Over-voltage ■ Short circuit
Pressure resistance：±50 ... ±500 pa：0.25 bar / ±1000 ... ±10000 pa：0.5 bar
Burst pressure：±50 ... ±2500 pa：0.75 bar / ±5000 ... ±10000 pa：1.25 bar

Certification
Certification：CE

Material
Housing：Aluminum alloy
Weight：Display：497 g；Non-display：478 g