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Dewpoint Transmitters DMT345 and DMT346







The Vaisala DRYCAP® Dewpoint Transmitters DMT345 and DMT346 are designed for humidity measurement in industrial drying applications with particularly high temperatures. Both transmitters incorporate the Vaisala DRYCAP® sensor, which is accurate, reliable, and stable. The sensor is condensation-resistant and is immune to particulate contamination, oil vapor, and most chemicals. The DRYCAP® sensor is notable for its swift response time and rapid recovery after getting wet.


♦   The DMT345 measures humidity at temperatures up to180 °C (356 °F)
♦   The DMT346 measures humidity at temperatures up to 350 °C (+662 °F)
♦   Dew point accuracy ±2 °C (±3.6 °F)
♦   Vaisala DRYCAP® sensor provides accurate and reliable measurement with excellent long-term stability and fast response time
♦   Condensation-resistant
♦   Unique auto-calibration feature
♦    NIST traceable calibration (certificate included)
♦   Graphical display and keypad for convenient operation
♦   Optional alarm relays and mains power supply module
♦   Analog outputs, RS232/485, WLAN/LAN
♦   MODBUS protocol support (RTU/TCP)


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Dewpoint Transmitters DMT345 and DMT346




Measure Humidity Directly in Hot Processes

The DMT345 and DMT346 are built for direct measurement in hot processes. Therefore, there is no need for sampling systems and trace heating. As a result, high measurement accuracy and constancy are maintained. The accuracy and stability of the DMT345 and the DMT346 are due to their unique auto-calibration function, developed by Vaisala.


DMT345: Accurate in Hot and Dry Environments

The DMT345 is designed for accurate humidity measurement in hot and dry conditions. This model provides unmatched dry-end measurement accuracy at temperatures up to 140 °C; however, it can operate safely at temperatures up to 180 °C.