Temperature and Humidity Sensors

Electrical data
Nominal voltage AC/DC 24 VNominal voltage range AC 19.2...28.8 V / DC 19.2...28.8 VPower consumption AC 1 VAPower consumption DC 0.5 WElectrical connection Spring loaded terminal 0.25...1.5 mm²Cable entry Back sideTop sideBottom side
Data bus communication
Communication : Modbus RTU / BACnet MS/TP / MP-BusNumber of nodes : BACnet / Modbus see interface description MP-Bus max. 8 (16)Functional data 
Sensor Technology CO₂: NDIR (non dispersive infrared) dual channel 
Application :AirDisplay: ePaper touch display and LED, 69x62 mmThe LED is used for the CO₂ TLF (traffic lightfunction). The LED can be parametrised anddeactivated via Belimo Assistant App. (Type(P-)22RTM-..)Input/Output :1x digital input for potential-free contact.

Measuring data
Measured values: CO₂ ,Relative humidity , Dew pointTemperatureMeasuring range CO₂ 0...2000 ppmMeasuring range humidity 0...100% RHMeasuring range temperature 0...50°C [32...122°F]Measuring range dew point -50...50°C [-60...120°F]Accuracy CO₂ ±(50 ppm + 2% of measured value)Accuracy humidity ±2% between 0...90% RH @ 25°CAccuracy temperature active ±0.5°C @ 25°C [±0.9°F @ 77°F]Long-term stability ±20 ppm p.a.±0.25% RH p.a. @ 25°C @ 50% RH±0.03°C p.a. @ 25°C [±0.05°F p.a. @ 77°F]Materials Housing PC, white, RAL 9003Safety data Protection class IEC/EN III, Protective Extra-Low Voltage (PELV)Degree of protection IEC/EN IP30EU Conformity CE MarkingQuality Standard ISO 9001Ambient humidity Max. 95% RH, non-condensingAmbient temperature 0...50°C [32...122°F]Storage temperature -40...70°C [-40...160°F]

• Measures relative humidity & temperature • Calculates dew/frost point • Power supply range: 5…16 VAC / 5…24 VDC • Outputs: 0...1 V / 0...5 V / 0...10 V (standard probes) 0...1 V / 0...5 V / 0...10 V / 0...20 mA / 4...20 mA (industrial probes) • Voltage outputs configurable via software • Highest precision and reproducibility • Excellent long-term stability <1 %RH / year • Digital interface for calibration and measurement processing

Technical Specifications

Signal output humidityDC 0...10 VSignal output temperatureDC 0...10 VOperating voltageAC 24 V, DC 13.5…35 VSensing element, temperatureDC 0...10 VMeasuring range, temperature0…50 °C, -35…35 °C, -40…70 °CMeasurement range humidity0…95 % r.h.Measurement accuracy23 °C: 23 % r.h., 0…95 % r.h.: ±5 % r.h.At 23 °C, 30…70 % r.h.: ±5 % r.h.Time constantHumidity: 20 s, Temperature: 510 sDimensions (W x H x D)90 x 100 x 36 mm

Specifications

Voltage AC/DC -AC/DC 24 VElectrical connection -TerminalsMeasured values - CO₂ Temperature HumidityOutput signal -0...5 V 0...10 VMeasuring range CO₂Default setting: 0...2000 ppmWith A-22G-A05: 0...5000 ppmMeasuring range humidity0...100% RHMeasuring range temperature0...50°C [32...122°F]Output Voltage [Range]3 x 0...5 V, 0...10 V, min. resistance 10 kΩOutput signal active noteOutput 0...5/10 V with Jumper adjustableDisplay type -LCDProbe length -180 mm

Operating voltageAC 24 V, DC 15…35 VPower consumption3.3 VAMeasuring range0…2000 ppm CO₂, 0…100 % VOCMeasuring range, temperature-35…50 °CMeasurement range humidity0…100 % r.h.Permissible air velocity≤ 10 m/sAmbient temperature, operation-5…+45 °CConnection, electricalScrew terminalsImmersion length100…165 mmDegree of protectionIP54Dimensions (W x H x D)80 x 60 x 274 mmCommunicationModbus RTU (RS-485)