The Vaisala DMT153 Dew Point Transmitter is a compact industrial transmitter designed for low dew point measurement in dry gases and low-humidity processes.
It provides traceable dew point and frost point measurements across a calibrated range of −80 to −20°C (−112 to −4°F) Td/f.
The DMT153 can operate as a standalone transmitter or connect with Vaisala Indigo transmitters, the Indigo80 handheld indicator, and Vaisala Insight PC Software.
Its compact construction supports installation in ducts, pipes, glove boxes, vacuum chambers, gas sampling lines, production equipment, and test chambers.
Key Characteristics
- Vaisala DRYCAP® 180U thin-film capacitive polymer sensor
- Calibrated dew point/frost point measurement range of −80 to −20°C (−112 to −4°F) Td/f
- Accuracy of ±2°C Td/f from −80 to −40°C and ±3°C Td/f from −40 to −20°C
- Available dew point/frost point, dew point, water concentration, and water mass fraction output parameters
- RS-485 digital communication with Modbus RTU support
- Selectable voltage and current analog outputs, including 0–5 V, 0–10 V, 4–20 mA, and 0–20 mA
- Operating process pressure range of 0 to 50 bar (0 to 725psi), absolute
- Compatible with Vaisala Indigo products, the Indigo80 handheld indicator, and Vaisala Insight PC Software
- Sensor purge and autocalibration functions designed to support long-term measurement stability
- M12 5-pin A-coded male connector and IP66-rated transmitter body when properly connected
- SI-traceable calibration certificate included
- Intended for indoor use and not Ex-certified for potentially explosive environments
Ideal Applications
- Semiconductor manufacturing
- Battery manufacturing
- Pure gas production and gas quality verification
- Class 1 compressed air systems
- Low dew point measurement in air, nitrogen, argon, helium, and oxygen
- Vacuum measurement applications
- Dry rooms and cleanrooms
- Glove boxes and isolators
- Gas sampling lines
- Vacuum chambers and test chambers
- Industrial equipment and production lines requiring low-humidity measurement
Product Family Includes
- DMT153 with ISO G 1/2″ process connection
- DMT153 with 1/2″ NPT process connection
- DMT153 with 3/4″ – 16 UNF process connection
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Vaisala DMT153 Dew Point Transmitter
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