Vaisala HMT370EX Series

Intrinsically Safe Humidity and Temperature Transmitter

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Please note that the HMT370EX has been released with ATEX, IECEx, CML, NEPSI, KC, FM, CSA and UKEX certificates for intrinsically safe compliance.

The intrinsically safe HMT370EX is the ideal solution for use in hazardous areas up to zone 0 and 20. In addition to measuring relative humidity and temperature, the transmitter outputs also other humidity parameters: dew point temperature, wet-bulb temperature, absolute humidity, mixing ratio, water concentration, water mass fraction, water vapor pressure, and enthalpy. Special models for moisture in oil and jet fuel measurements are available.

 

The HMT370EX offers several probe options for different applications:

  • HMP371 – for wall mounting
  • HMP373 – for confined spaces
  • HMP374 – for pressurized spaces
  • HMP375 – for high temperature
  • HMP377 – for high humidity
  • HMP378 – for pressurized pipelines

Models for measuring moisture in oil and jet fuel:

  • HMP378F – for moisture in oil
  • HMP378H – for JET A-1 fuel
  • Intrinsically safe (Exi)
  • Interchangeable probes
  • Detachable probe module
  • Graphical LCD display and non-display model
  • Vaisala HUMICAP® sensor
  • Compatible with Vaisala Insight PC software
  • Traceable calibration (certificate included)

Typical applications include fuel storage tanks, manufacturing of chemicals, pharmaceuticals and food, paint booths, and any other industry or process where intrinsically safe humidity or moisture in oil measurement is required.

HMT370EX-Series-Datasheet

HMT370EX User Guide

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