Sensor Datasheet22DTH-56Mwww.belimo.com22DTH-56M • en-us • 2018-01-08 • Subject to change1 / 4Duct Sensor Humidity / TemperatureFor measuring the relative or absolute humidity and temperature in duct applications. The measured values and absolute humidity, dewpoint and enthalpy are transmitted over BACnet MS/TP. Temperature and relative humidity are available as 0 to 5/10 VDC outputs.Type OverviewTypeOutput SignalOutput Signal Active TemperatureOutput Signal Active Humidity22DTH-56MBACnetDC 0...5 V, DC 0...10 VDC 0...5 V, DC 0...10 VTechnical DataElectrical DataPower Supply DC15...24 V, ±10%, 0.7 WPower Supply AC24 V, ±10%, 1.8 VAElectrical Connectionremovable spring loaded terminal block max. 11 GA [2.5 mm²]Cable Entrycable gland M20 2 x Ø6 mm, with strain relief 2 x Ø6 mm, 1/2" conduit adapter includedFunctional DataSensor Technologypolymer capacitive sensor with stainless steel wire meshCommunicative controlBACnet MS/TP (Details see seperate document "Sensor BACnet PICS")Output Signal Active Noteoutput DC 0 to 5/10 V selectable with switchMediaairMeasuring DataMeasured Valuestemperaturerelative humiditydew pointenthalpyabsolute humidityMeasuring Range Humidity0 to 100% RHselectable via BACnetMeasuring range temperature-30°F to 195°F [-35°C to 90°C]selectable via BACnetAttention: max. measuring temperature is restricted by max. medium temperature (see Safety data)Measuring Range Absolute Humidity0 to 80 g/m³selectable via BACnetMeasuring Range Enthalpy0 to 85 kJ/kgselectable via BACnetMeasuring Range Dew Point0°F to 200°F [-20°C to 80°C]selectable via BACnetAccuracy Humidity±2% between 10 to 90% RH @ 70°F [21°C]Accuracy temperature active±0.9°F @ 77°F [±0.5°C @ 25°C]Operating Condition Air Flowmax. 40 ft/s [12 m/s]MaterialsCable GlandPA6, blackHousingcover: lexan, Belimo orange NCS S0580-Y6ORbase: lexan, Belimo orange NCS S0580-Y6ORseal: 0467 NBR70, blackSensor Datasheet22DTH-56Mwww.belimo.com22DTH-56M • en-us • 2018-01-08 • Subject to change2 / 4Safety DataAmbient Temperature-30°F to 120°F [-35°C to 50°C]Medium Temperature-30°F to 160°F [-35°C to 70°C]Operating Condition Air Flowmax. 40 ft/s [12 m/s]Protection Class IEC/ENIII safety extra-low voltage (selv)Protection Class ULUL Class 2 SupplyEU ConformityCE MarkingCertification IEC/ENIEC/EN 60730-1 and IEC/EN 60730-2-13Certification ULcULus acc. to UL60730-1A/-2-9/-2-13, CAN/CSA E60730-1:02/-2-9, CE acc. to 2004/108/EC and 2006/95/EC, NEMA 4X, IP65, UL Enclosure Type 4XDegree of Protection IEC/ENIP65Degree of Protection NEMA/ ULNEMA 4XQuality StandardISO 9001Weight0.22 lbsSafety NotesThe installation and assembly of electrical equipment should only be performed by authorized personnel.The product should only be used for the intended application. Unauthorized modifications are prohibited! The product must not be used in relation with any equipment that in case of a failure may threaten, directly or indirectly, human health or life or result in danger to human beings, animals or assets. Ensure all power is disconnected before installing. Do not connect to live/operating equipment.Please comply with • Local laws, health & safety regulations, technical standards and regulations • Condition of the device at the time of installation, to ensure safe installation • This data sheet and installation manualRemarksTemperature sensors with electronic components always have a dissipative power which affects the temperature measurement of the ambient air. The dissipation in active temperature sensors shows a linear increase with rising operating voltage. This dissipative power should be taken into account when measuring temperature. As Belimo transducers work with a variable operating voltage, only one operating voltage can be taken into consideration, for reasons of production engineering. Transducers 0 to 10 V / 4 to 20 mA have a standard setting at an operating voltage of DC 24 V. That means, that at this voltage, the expected measuring error of the output signal will be the least. For other operating voltages, the offset error will be increased by a changing power loss of the sensor electronics. If a re-calibration should become necessary later directly on the sensor, this can be done by means of a trimming potentiometer on the sensor board.Refrain from touching the sensitive humidity sensor/element. Touching the sensitive surface will void warranty.For standard environmental conditions the manufacturing accuracy specified in the datasheet will be covered by the calibration warranty for two years. When exposed to harsh environmental conditions such as; high ambient temperature and/or high levels of humidity or presence of aggressive gases (i.e. chlorine, ozone, ammonia) the sensor element may be affected and readings may be outside specified accuracy. Replacement of deteriorated humidity sensor due to harsh environmental conditions are not subject of the general warranty.Accessoriesmounting flangestrain relief Ø6 to 8 mmcable gland nut conduit 1/2" NPT, 2 x Ø6 mmcable gland nut PG11, Ø6 to 10 mmcable gland nut conduit 1/2" NPTOptional AccessoriesDescriptionTypemounting flange for duct humidity and CO₂ sensorA-22D-A34Build-up of Self-Heating by Electrical Dissipative PowerApplication Notice for Humidity SensorsScope of DeliverySensor Datasheet22DTH-56Mwww.belimo.com22DTH-56M • en-us • 2018-01-08 • Subject to change3 / 4Wiring Diagram① and ⑤: Status LED② red: Error③ yellow: Tx④ yellow: RxThe separate document, BACnet PICS, informs about the PICS, MAC addressing and bus Termination (DIP1 & DIP2). Connection via safety isolating transformer.Parallel connection of other actuators possible. Observe the performance data.The wiring of the line for Modbus (RTU) / BACnet (MS/TP) is to be carried out in accordance with applicable RS485 regulations.Modbus / BACnet: Supply and communication are not galvanically isolated. Connect earth signal of the devices with one another.Wiring RS485 (Modbus RTU & BACnet MS/TP)Detailed documentationNotes Wiring RS485Sensor Datasheet22DTH-56Mwww.belimo.com22DTH-56M • en-us • 2018-01-08 • Subject to change4 / 4DimensionsNext >