Ambient air IAC 500– Measures ambient conditions in the room – Absolute pressure, room temperature, humidity Special features: • 3 in 1 sensor: absolute pressure, temperature and humidity in the room • Modbus-RTU, Ethernet or M-Bus interface • Alarm relay – limit value adjustable via buttons (max 60 VDC, 0.5 A) • Optional: 2 x 4...20 mA analogue outputs, 2 x alarm relays, e.g., for dew point and temperature Application: • Monitoring the intake air of compressed air stations • Monitoring of room air e.g. cold rooms, storage rooms or clean rooms The delivery rate of compressors depends on the intake air. The installation site and the climatic conditions must already be taken into account when designing compressed air stations. Large temperature fluctuations, e.g. between day and night, lead to uneven compressed air flow. Example order code IAC 500: 0604 1000 _A1 TECHNICAL DATA of IAC 500 Temperature Measuring range: Accuracy: Signal output option 1 x 4...20 mA analogue output (galvanically not isolated), A1 alarm relay, RS 485 (Modbus-RTU) 2 x 4...20 mA analogue output (galvanically not isolated), A2 2 x alarm relays, RS 485 (Modbus-RTU) Ethernet interface (Modbus/TCP), 1 x 4…20 mA A3 analogue output (galvanically not isolated), RS 485 (Modbus-RTU) Ethernet interface PoE (Power over Ethernet) A4 (Modbus/TCP), 1 x 4...20 mA analogue output (galvanically not isolated), RS 485 (Modbus-RTU) M-Bus, 1 x 4...20 mA analogue output (galvanically not A5 isolated), alarm relay, RS 485 (Modbus-RTU) Rel. humidity Measuring range: Accuracy: Absolute pressure measuring range: Accuracy Voltage supply: IAC 500 sensor for measuring ambient conditions (absolute pressure, temperature, rel. humidity), incl. wall bracket Further accessories: Protection class of housing: Operating temperature: Ambient temperature: 24 VDC (18...30 VDC via SELV supply) or Power over Ethernet (IEEE802.3af: Class 2 (3.84W - 6.49W) Connection cable for probes 5 m with open ends Storage temperature: Connection cable for probes 10 m with open ends Ethernet connection cable length 5 m, M12 plug x-coded (8 pin) to RJ 45 plug Ethernet connection cable length 10 m, M12 plug x-coded (8 pin) to RJ 45 plug Absolute pressure [hPa, mbar, bar, psi,...], dew point [°Ctd, °Ftd], temperature [°C, °F], rel. humidity [ %RH], ab