Instrinsically Safe Humidity and Humidity Transmitter

Vaisala's HMT360 humidity and temperature transmitter is designed for use in potentially explosive atmospheres. The electronics are designed so that the transmitter is intrinsically safe. The whole transmitter can be installed directly into an explosive area, even into areas classified as having a constant risk of explosion (Zone 0). HMT360 fulfils all requirements of current standards. The microprocessor-based HMT360 is easy to install, maintain and calibrate due to its modular structure. The interchangeable probes are easy to remove and enable on-site calibration. They make the HMT360 series versatile and ensure its suitability for almost any application.

Also suitable for measuring water activity of Jet Fuel

Model HMT368F Transmitter and Probe for Moisture in Oil Measurements
HMT360F Transmitter Unit for Moisture in Oil Measurements
HMT368H Transmitter and Probe for Jet Fuel Measurements
HMT360H Transmitter Unit for Jet Fuel Measurements
HMT362N Transmitter with probe for Natural Gas with flanged probe
HMT364N Transmitter with probe for Natural Gas in high pressure
HMT368N Transmitter and probe for Natural Gas pipeline installation
HMT360N Transmitter Unit for Natural Gas measurments
HMP362 Flanged probe
Measurement Range Humidity: 0 - 100% rH
Temperature:
  • HMT361: -40 to 60ºC
  • HMT363: -40 to 120ºC
  • HMT3364/365/368: -70 to 180ºC
    Dewpoint, mixing ratio, absolute humidity, wet bult temperature
Sensor Humidity: Vaisala HUMICAP 180L2
Temperature: PT100 RTD
Accuracy at 20ºC Humidity: ±1.0%rH (0 - 90%rH), ±2.0%rH (90 - 100%rH)
Temperature: ±0.1ºC
Power supply 10-28V
Output 4-20mA, RS-232
Mechanics Protection: IP65 (NEMA 4)
Complies with classifications from PTB (CENELEC, Europe), FM (USA), CSA (Canada), TestSafe (Australia), TIIS (Japan) and PCEC (China)
Remarks HMT361 for wall mounting
HMT363 for duct mounting and tight spaces
HMT364 for high pressures up to 100 bar and vacuum conditions
HMT365 for high temperatures
HMT367 Transmitter with Vapor Tight Probe
HMT368 for pressurized pipelines up to 40 bar

Specific References

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