Description Differential Pressure Transmitter | PHD330 Input Input type Piezoelectric differential pressure module Measuring range ±300 … ±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 backlight, 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(at 25°C) Accuracy ±2.0% of 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 ±300 … ±500 pa : 0.25 bar ±1000 … ±10000 pa : 0.5 bar Burst pressure ±300 … ±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 *Please make sure the product and the device which connect with RS-485 are on common ground, to avoid damaging product. Differential Pressure Transmitter | PHD330
