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.
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.
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.
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
In addition to the standard Vaisala HUMICAP® Sensor, an application specific, very chemically durable sensor is also available.
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.
-HMP361 – wall mount
-HMP363 – confined spaces
-HMP364 – pressurized spaces
-HMP365 – high temperature
-HMP367 – high humidity
-HMP368 – pressurized pipeline
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|
|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 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
|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|
|Weight (housing)||950 g|
|Material (housing)||G-AlSi 10 Mg (DIN 1725)|
|Housing Classification||IP66 (NEMA 4X)|
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