- Communicative
- communicative
- Communicative control
- Modbus RTU
- RS485 documentation
- The separate document Sensor Modbus-Register informs about Modbus register, addressing, parity and bus termination (DIP1: address, DIP2: baud rate, parity, bus termination)
- Measuring range temperature
- -30...195°F [-35...90°C]
- Measuring range temperature active note
- selectable via Modbus|Attention: max. measuring temperature is restricted by max. medium temperature (see Safety data)
- Accuracy temperature active
- ±0.9°F @ 77°F [±0.5°C @ 25°C]
- Measuring range humidity
- 0...100% r.H.|selectable via Modbus
- Accuracy humidity
- ±2% between 10 to 90% r.H. @ 70°F [21°C]
- Operating condition air flow
- max. 40 ft/s [12 m/s]
- Sensor Technology
- polymer capacitive sensor with stainless steel wire mesh
- Cable gland
- PA6, black
- Medium temperature
- -30...160°F [-35...70°C]
- Ambient temperature
- -30...120°F [-35...50°C]
- Output signal active temperature
- DC 0...5 V|DC 0...10 V
- Output signal active humidity
- DC 0...5 V|DC 0...10 V
- Output signal active note
- Output DC 0...5/10 V selectable with switch
- Probe diameter
- 0.78" [19.5 mm]
- Probe length
- 5.5" [140 mm]
- Power supply DC
- 15...24 V
- Power supply tolerance DC
- ±10%
- Power consumption DC
- 0.7 W
- Power supply AC
- 24 V
- Power supply tolerance AC
- ±10%
- Power consumption AC
- 1.8 VA
- Build-up of self-heating remark
- Remark: Occurring draft leads to a better carrying-off of dissipative power at the sensor. Thus temporally limited fluctuations might occur upon temperature measurement.
- Mounting type duct
- Single Point
- Measuring range enthalpy
- 0...85 kJ/kg|selectable via Modbus
- Measuring range dew point
- 0...200°F [-20...80°C]|selectable via Modbus
- Measuring range absolute humidity
- 0...80 g/m³|selectable via Modbus
- Measuring values
- temperature|relative humidity|dew point|enthalpy|absolute humidity
- Sensor type
- humidity
- Housing type
- Duct
- Application
- Duct
- Sensor powertype
- active
- Communication
- Modbus RTU
- Cable entry
- Cable gland with strain relief 2 x Ø6 mm (1/2" NPT conduit adapter included)
- Electrical connection
- Removable spring loaded terminal block max. 2.5 mm²
- Ambient humidity
- max. 95% r.H. non-condensing
- Scope of delivery
- mounting flange|Strain relief Ø6...8 mm|1/2" NPT conduit adapter, 2 x Ø6 mm|Cable Gland Nut PG11, Ø6...10 mm|1/2" NPT conduit adapter
- Mounting instruction
- Mounting instruction - 71964-00001A 22DTH-..|Sensor Modbus-Register
- Degree of protection IEC/EN
- IP65
- Degree of Protection
- IP65,
- Certification IEC/EN
- IEC/EN 60730-1
- Certification UL
- cULus acc. to UL60730-1A/-2-9/-2-13, CAN/CSA E60730-1:02/-2-9
- Protection class IEC/EN
- III safety extra-low voltage (selv)
- Protection class UL
- UL Class 2 Supply
- Quality Standard
- ISO 9001
- Material short text
- Duct Temp+Hum Sensor MOD
- Output signal
- Modbus
- Housing
- cover: lexan, orange|base: lexan, orange|seal: 0467 NBR70, black
- Optional accessories
- A-22D-A34
- Electrical connection note
- Removable spring loaded terminal block max. 2.5 mm²
- Connection
- terminals
- Product family
- Sensor
- CAD data 3D
- Belimo_22DTH-15M_3D.dwg|Belimo_22DTH-15M_3D.dxf|Belimo_22DTH-15M_3D.igs|Belimo_22DTH-15M_3D.sat|Belimo_22DTH-15M_3D.stp
- Notes box electrical installation
- Connection via safety isolating transformer. Parallel power connection of additional devices possible. Observe the performance data. The wiring of the line for BACnet MS/TP / Modbus RTU 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.
- Application notice humidity sensors
- 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.
- Build-up of self-heating
- Temperature 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.
- Application text
- Duct mounted combined humidity and temperature sensor. Nema 4X / IP65 rated enclosure. Field selectable output for RH, absolute humidity, enthalpy and dewpoint. With Modbus RS485 communication and integrated 0 to 5/10 VDC outputs.
- General caution
- The installation and assembly of electrical equipment should only be performed by authorized personnel. This device has been designed for use in stationary heating, ventilation and air conditioning systems and must not be used outside the specified field of application. Unauthorised modifications are prohibited. The product must not be used in relation with any equipment that in case of a failure may threaten human, animals or assets. Ensure all power is disconnected before installing. Do not connect to live/operating equipment.
- Additional caution
- 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 manual
Datasheet Download: Datasheet
Installation instructions Download: Installation instructions
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