Description Indoor Differential Pressure Transmitter | PMM330 Measurement Measuring element Hot-wire type diff. pressure sensor, flow-through Measuring range ±50 … ±1500 Pa Output Output 4 … 20 mA / 0 … 10 V / RS-485 Signal connection 3-wire Load resistance Current output: ≦ 500 Ω Voltage output: ≧10 KΩ Response time t63 ≦ 2 ms Display type LCD Module with backlight, double line character Display range Upon request, 2 decimal places (as unit is Pa: 1 decimal place) Digit height 5.56 mm Accuracy (at 25°C) Accuracy ±1.5% F.S. ±3% M.V. Temperature influence 1% m.v. per 10°C Environment Measuring medium Air Operating temperature 0 … 50°C Operating humidity 0 … 95%RH (Non-condensing) Storage temperature -20 … 60°C Electrical Power supply DC 24 V ±10% & AC 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 M type ( M12 – 4 PIN connector ) / ( M12 – 5 PIN connector ) N type ( M16 plastic cable gland ) *M type with 2 m cable Installation Installation Indoor wall type Protection IP rating IP65 Electrical protection ■ Over-voltage ■ Reverse polarity ■ Short circuit Pressure resistance 1 bar Burst pressure 3 bar Certification Certification CE Material Housing PC fire-proof class(PC-110)(UL94V-2) Weight Display: 152 g Non-display: 127 g Note: Design and specifications are subject to change without notice. Note: If the product has RS-485 function, to avoid damaging product, please make sure the product and the device which connects with RS-485 are on common ground. Indoor Differential Pressure Transmitter | PMM330
