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346.68
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312.01
Item number: 23010048
RRP 274.32
246.89
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Delivery time: 7 working days
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Good points
- 2-fold measurement
- Measuring range T: -20 to +80°C
- Four adjustable measurement ranges
- IP65 protection class
Belimo Duct Sensor for Humidity and Temperature - Probe 140 mm - 22DTH-11M
The Belimo 22DTH-11M is a duct sensor designed for simultaneous measurement of relative humidity and temperature within air ducts. In addition to humidity, the output signal can be selected for absolute humidity, dew point, or enthalpy. The sensor features two integrated analogue outputs (0-10 V) and four configurable measurement ranges selectable via a jumper. Thanks to its robust IP65/NEMA 4X enclosure, the sensor is suitable for use in demanding environments. The capacitive polymer sensor element with stainless steel wire mesh filter ensures stable and accurate readings.
Advantages and Features
- Multiple measurements in one sensor: Simultaneously measures temperature and humidity, with selectable output signals for relative humidity, absolute humidity, dew point, or enthalpy without requiring additional sensors.
- Four configurable measurement ranges: Temperature measurement range can be easily adjusted via a jumper, with four options from -40 to +80°C tailored to the specific application.
- Two analogue outputs: The two integrated outputs can be configured for 0-5 V or 0-10 V via a jumper, making the sensor compatible with virtually all existing controllers.
- Capacitive polymer sensor with stainless steel filter: The sensor element is protected by a stainless steel wire mesh filter, enhancing lifespan and measurement stability in duct applications.
- IP65 / NEMA 4X protection rating: Fully protected against dust and water jets, suitable for use in plant rooms and industrial environments.
- Wide measurement range: Humidity measurable from 0 to 100% RH and temperature from -20 to +80°C (factory setting), with three alternative measurement ranges configurable via the jumper.
Installation, Maintenance and Applications
The sensor is mounted on the duct wall using the supplied mounting flange. The 140 mm probe length sufficiently extends into the duct for a representative measurement. Electrical connection is via a pluggable terminal block (max. 2.5 mm²) with cable gland and strain relief. Measurement range and output signal are configurable via the jumper on the sensor PCB. The duct sensor is suitable for use in central air handling units, ductwork, and climate control systems in commercial and industrial buildings where reliable humidity and temperature measurement is required.
Practical Information
The sensor features a 140 mm long probe with a diameter of 19.5 mm, suitable for installation in standard air ducts. The robust orange enclosure is made of UV-resistant polycarbonate with NBR sealing and weighs 0.14 kg. The maximum medium temperature is 80°C and the maximum airflow is 12 m/s. The nominal voltage is AC/DC 24 V.
| Brand | Belimo |
| Category | Sensors and controllers |
| GTIN | 7630498101168 |
| Manufacturer's item number | 22DTH-11M |
| Article number | 23010047 |
Specifications
| Category code | 101 |
| With mounting material | Yes |
| Suitable for wall mounting | No |
| Suitable for ceiling mounting | No |
| Suitable for duct mounting | Yes |
| Suitable for tube mounting | No |
| Suitable for air | Yes |
| Suitable for liquids | No |
| Suitable for gases | No |
| With housing | Yes |
| Cover attachment | Screwed |
| Sensor element inside housing | No |
| Sensor element outside housing | Yes |
| Fixed cable to sensor | No |
| Sensor length | 140 mm |
| Insert length | 140 mm |
| Diameter sensor element | 19.5 mm |
| Material element | Stainless steel |
| Technology | Capacitive polymer sensor |
| Active temperature measurement | Yes |
| Passive temperature measurement | No |
| Average temperature measuring | No |
| Number of measuring points | 1 |
| Measurement of CO2 | No |
| Measurement of VOC | No |
| Measurement of relative air humidity | Yes |
| Measurement of absolute air humidity | Yes |
| Enthalpy measurement | Yes |
| Measurement of dewpoint | Yes |
| Particulate matter measurement (PM) | No |
| Temperature measuring range (min) | -20 °C |
| Temperature measuring range (max) | 79 °C |
| Number of measuring ranges | 4 |
| Offset setting possible | Yes |
| Trend representation | No |
| Error registration possible | No |
| Sensor type | Other |
| Tolerance | 2 % |
| Potentiometer with adjustment knob | No |
| Supporting protocol for BACnet | No |
| Supporting protocol for Modbus | No |
| Supporting protocol for MP (multi point) | No |
| Supporting protocol for KNX | No |
| LoRa technology | No |
| NFC (Near Field Communication) | No |
| Bluetooth | No |
| Wi-Fi-compatible | No |
| Standby push button | No |
| Wireless | No |
| With display | No |
| Type of power supply | Power cord |
| Type of electric connection | Terminal board |
| Rated supply voltage AC (min) | 24 V |
| Rated supply voltage AC (max) | 24 V |
| Rated supply voltage DC (min) | 24 V |
| Rated supply voltage DC (max) | 24 V |
| Number of output signals | 2 |
| Number of output ranges 0 V ... 5 V | 2 |
| Number of output ranges 0 V ... 10 V | 2 |
| Max. ambient humidity (non-condensing) | 95 % |
| Ambient temperature (min) | -35 °C |
| Ambient temperature (max) | 50 °C |
| Explosion-proof | No |
| Degree of protection (IP) | IP65 |
| Housing height | 50.9 mm |
| Housing width | 73.2 mm |
| Housing depth | 65.6 mm |
| Housing colour | Orange |
| Compatible with Apple HomeKit | No |
| Compatible with Google Assistant | No |
| Compatible with Amazon Alexa | No |
| IFTTT support available | No |
| Scope of application | Duct |
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