Indoor air humidity and temperature sensor RDF18+ RS485 Modbus

relativeabsoluteflush-mount

Ceiling sensor for measuring relative humidity and temperature in rooms. The ideal solution for an inconspicuous, architectural integration into ceiling slabs or hollow walls. Especially designed for use in museums or showrooms. The precise measurements provided to a BMS system contribute to a comfortable room climate and prevent mold formation. • Application/type : Ceiling sensor, Room sensor • Purpose : Measure values • Measured values : temperature, relative humidity, absolute humidity, enthalpy, dew point • Interface : Active, 0..5 V, 0..10 V, 4..20 mA, RS485 Modbus • Configuration : USEapp, uConfig, BUS, jumper, DIP switches • Output voltage : 2x 0..10 V or 0..5 V, adjustable via jumper, live-zero configuration via app or uConfig, min. load 10 kΩ • Network technology : RS485 Modbus • Data transmission : RTU, half-duplex, baud rate 9.600, 19.200, 38.400 or 57.600, parity: none (2 stop bits), even or odd (1 stop bit) • Output signal temperature : scaling analogue output, -20..+80 °C (default setting), selectable from 4 temperature ranges -40..+60 | 0..+50 | -20..+80 | -15..+35 °C, optionally configurable via app or uConfig • Operating range humidity : max. 85% rH short term condensation • Accuracy temperature : ±0,3 K (typ. at 21 °C), within default measuring range, offset setting via app or uConfig • Measuring range humidity : 0..100% rH non-condensing, 0..85 KJ/kg enthalpy, 0..50 | 0..80 g/m³ absolute humidity, 0..+50 | -20..+80 °C dew point, optionally configurable • Accuracy humidity : ±2% between 10..90% rH (typ. at 21 °C), offset setting via app or uConfig