Intrinsically Safe Humidity and Temperature Transmitter Series HMT370EX

Intrinsically Safe Humidity and Temperature Transmitter Series HMT370EX inside

Datasheet

Intrinsically Safe Humidity and Temperature Transmitter Series HMT370EX

For use up to zone 0 and 20

Please note that the HMT370EX has been released with IECEx and ATEX certificates for intrinsically safe compliance, but FM and CSA approval are still pending.

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.

Typical applications include fuel storage tanks, manufacturing of chemicals, pharmaceuticals and food, biogas production' paint booths and any other industry or process where intrinsically safe humidity or moisture in oil measurement is required. View the current certificates for the HMT370EX:

This next-generation HMT370EX transmitter replaces the long-running HMT360 transmitter series.

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

The HMT370EX uses the superior Vaisala HUMICAP technology.

Features

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)

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Key Benefits

Intrinsically safe

The entire HMT370EX transmitter can be installed directly in explosive areas. It can withstand continuous exposure to potentially explosive environments that contain flammable liquids, gases or dust. Operation in any of these environments requires no additional protective enclosures.

Detachable probes

Probes can be easily replaced and removed for calibration outside the hazardous area without removing the entire transmitter. Attaching new probes involves minimal reconfiguration, as up-to-date settings can be restored from the transmitter.

Easy to configure

Output configuration and measurement calibration and adjustment can be carried out directly on the optional local display interface. Alternatively, you can connect the transmitter to Vaisala Insight PC software and configure both the transmitter and the probe together or separately.

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