Description Differential Pressure Transmitter | PF4/5 Long-term stability PF4: ±0.05 % FSS/year (typ.) / ±0.1 % FSS/year (max.) PF5: ±0.25 % FSS (typ.) per year @ ±250 and ±500 Pa measurement range ±0.3125 % FSS (typ.) per year @ ±100 Pa measurement range ±0.625 % FSS (typ.) per year @ ±50 Pa measurement range ±1.25 % FSS (typ. Response time t 63 < 1 s, typical Dimensions 129 mm x 72 mm x 45 mm Display type Color TFT display Fire protection class Complies UL94-HB Min. / max. load voltage / current signal > 1 kΩ/V (voltage output) / < 500 Ω (current output) Weight 243 g with display & Ethernet Housing ABS Power supply 18…48 VDC / 16…35 VAC, (galvanically isolated), Optional: Power over Ethernet Evaluation software / Compatibility ROTRONIC HW4 V3.9 Switch output 1 relay potential-free change-over switch (NC – COM – NO) Switching capacity 30 VDC/1 A or 35 VAC/1 A Pressure resistance PF4: 5 bar, PF5: 0.7 bar Accuracy ±1 hPa (0…65 °C; 950…1100 hPa) max. Resolution 0 to 1 V 13 bit, otherwise 16 bit Mounting Wall Mounting Electrical connections Screw terminals in housing Measurement range PF4: ±10 Pa / ±25 Pa / ±50 Pa / ±100 Pa / ±250 Pa / ±500 Pa PF5: ±25 Pa / ±50 Pa / ±100 Pa / ±250 Pa / ±500 Pa Analog outputs Min. 1, max. 3, freely configurable Maximum altitude 2000 m ASL Sensor type PF4: Flow Sensor / PF5: Diaphragm Sensor Zero point compensation PF4: Automatic, every 5 ms in the sensor, PF5: Automatic, configurable via HW4 IP protection class IP65 (without Ethernet) / IP40 (with Ethernet) Influence line resistance RTD/resistance 3-wire ±0.05 %FS/Ω Rated current consumption <300 mA @ 24 VDC Digital communication Ethernet (TCP) / RS-485 (Modbus RTU) Analog output type 0…1 V, 0…5 V, 0…10 V, 0…20 mA, 4…20 mA Analog output accuracy (@ 23 °C) Voltage output: ±1 mV/V Current output: ±20 μA Analog input 1, freely configurable Analog input type 0…10 V, input resistance >50 k 0…24 mA, measurement resistance 412.5 Ω Ambient pressure dependence PF4: Compensated, PF5: None Working range – pressure 300…1100 hPa Working range – temperature -5…65 °C Calibration certificates are issued during the production process. New calibration certificates are available upon request at an additional cost. Differential Pressure Transmitter | PF4/5
