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Products Temperature Dew Point Transmitter

Vaisala Dew Point Transmitters for High Temperature Applications - DMT345 and DMT346
 
Vaisala

Model: DMT345 and DMT346

Vaisala DRYCAP® Dewpoint Transmitters DMT345 and DMT346 are the best-in-class choice for direct measurement of humidity without sampling systems in high-temperature applications such as baking ovens or high-temperature dryers. Vaisala DRYCAP® Sensor provides accurate, reliable measurement with excellent long-term stability and fast response time.


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Datasheet (PDF)
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Features

DMT345 measures humidity at temperatures up to 180°C
DMT346 measures humidity at temperatures up to 350°C
• Dew point accuracy ±2°C
• Condensation-resistant
• Unique auto-calibration feature
• Analog outputs, RS-232/485, WLAN/LAN
• Modbus protocol support (RTU/TCP)

Benefits
• Vaisala DRYCAP sensor provides accurate and reliable measurement with excellent long-term stability and fast response time
• Graphical display and keypad for convenient operation
• Optional alarm relays and mains power supply module

DMT345: Accurate in Hot and Dry Environments
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. The long and robust steel probe and an optional installation flange allow easy, adjustable installation depth through insulation for example in ovens.

DMT346: Reliable in Very Hot Processes
DMT346 provides the best measurement performance at process temperatures between 140°C and 350°C.
DMT346 includes a cooling set as standard. The cooling set provides passive cooling by conducting heat away
from the probe and thus reduces temperature to optimal range for the sensor.
The cooling system has no moving parts, and requires no additional power or cooling utilities, so there is no risk of sensor damage due to mechanical cooling failure.
Additionally, sensor warming minimizes the risk of condensation accumulating on the sensor. In low humidity conditions the combination of auto-calibration and DRYCAPâ ensures accurate measurement.

Measurement Performance, DMT345
Dew Point
Sensor: Vaisala DRYCAP 180S
Measurement range: -40 to +100°C Td
Accuracy ±2°C Td See the accuracy graph on the datasheet

Measurement Performance, DMT346
Dew Point
Sensor: Vaisala DRYCAP 180S
Measurement range: -25 to +100°C Td
Accuracy ±2°C Td See the accuracy graph on the datasheet

Please refer to product's datasheet (PDF)
Product Dimensions (mm): 183 x 77 x 116
Package Dimensions (mm): 0 x 0 x 0
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