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Vaisala HMT360 Series Intrinsically Safe Humidity and Temperature Transmitter

condition: Brand NewPart #: VA-HMT360Availability: Ships within 2-4 weeks
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The Vaisala HUMICAP® Humidity and Temperature Transmitter Series HMT360 are the ideal solution for measuring humidity in hazardous areas. They operate safely and reliably even in the most hazardous classifications. The HMT360 transmitters' proven performance and technology conform with rigorous international standards.

Intrinsically Safe
The entire HMT360 transmitter can be installed directly in explosive areas. It can withstand continuous exposure to potentially explosive environments that contain flammable gases or dust.

Customized Configuration
Due to the microprocessor based electronics, options and accessories, the HMT360 series is truly flexible.

Customers may specify the transmitter configuration when ordering the instrument, however changes in configuration can also easily be made in the field.

Interchangeable Probes
The HMT360 offers six probe options for various applications:

-HMP361 - wall mount
-HMP363 - confined spaces
-HMP364 - pressurized spaces
-HMP365 - high temperature
-HMP367 - high humidity
-HMP368 - pressurized pipelines

The interchangeable probes enable fast and easy removal or re-installation when required. Calibration, for example, is easy to perform due to the modular structure. All calibration coefficients are included in the probe unit itself, which means that probes can be switched between transmitter bodies without losing the accuracy

Optimized Sensors
In addition to the standard Vaisala HUMICAP® Sensor, an application specific, very chemically durable sensor is also available.

Long-term Solution
The HMT360 transmitters are an investment; their rugged design, combined with trouble-free operation, ensure a long-term solution for monitoring humidity and dewpoint in explosive environments. Customized calibration and maintenance contracts for the HMT360 series are available on request.

 

  • Measures humidity and temperature, outputs also dewpoint, mixing ratio, absolute humidity and wet bulb temperature
  • Safe operation with the entire transmitter in hazardous areas: Division 1 and 2 (USA, Canada), Categories 1G / Zone 0 and 1D / Zone 20 with protection cover (EU)
  • Intrinsically safe
  • Designed for harsh conditions
  • Vaisala HUMICAP® Sensor features high accuracy, excellent long-term stability, and negligible hysteresis
  • Six probe options:

-HMP361 – wall mount
-HMP363 – confined spaces
-HMP364 – pressurized spaces
-HMP365 – high temperature
-HMP367 – high humidity
-HMP368 – pressurized pipeline

  • Temperature range between -40 … +180°C (-40 … +356°F) depending on the probe option
  • NIST traceable (certificate included)

Relative Humidity Measurement

Measurement Range 0 … 100 % RH
Accuracy at +20 °C (68 °F) ± 1.0 % RH (0 … 90 % RH)

± 1.7 % RH (90 … 100 % RH)

Sensor Vaisala HUMICAP® 180
General Use Vaisala HUMICAP® 180R
Applications with a Demanding Chemical Environment Vaisala HUMICAP® 180L2

Temperature Measurement

Measurement Range
HMT361 -40 … +60 °C (-40 … +140 °F)
HMT363 -40 … +120 °C (-40 … +248 °F)
HMT364/365/367/368 -40 … +180 °C (-40 … +356 °F)
Typical accuracy of electronics at +20 °C (68 °F) ± 0.2 °C (± 0.36 °F)
Sensor Pt 1000 RTD 1/3 Class B IEC 751

 

Other variables available (depends on model) Dewpoint temperature, mixing ratio, absolute humidity, wet bulb temperature.

 

Operating Environment

Operating Temperature Range for Electronics -40 …+ 60 °C (-40 … +140 °F)
With Display -20 …+ 60 °C (-4 … +140 °F)
Storage -40 …+ 70 °C (-40 … +158 °F)

 

Inputs and Outputs

​Operating Voltage
12 … 28 V
Operating Voltage with serial port (service mode) 15 … 28 V
Analog Outputs two-wire 4 … 20 mA, one standard, one optional
Digital Outputs RS-232C serial output for service use

Mechanics

Weight (housing) 950 g
Material (housing) G-AlSi 10 Mg (DIN 1725)
Housing Classification IP66 (NEMA 4X)

 

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