AMT露點變送器
Model AMT Dewpoint Transmitter is a two wire 4-20mA loop powered unit, used for continuous measurement of moisture levels in gases and compressed air, which will output a linear 4-20mA signal corresponding to the dewpoint temperature. The Model AMT dew-point transmitter can also be factory configured to output a 4-20mA linear signal for any other moisture unit for example, ppm(v), ppm(w), g/m3 or lb/MMSCF.

The Ultra High Capacitance sensing element is long lasting and offers excellent sensitivity, repeatability and response speed. Each unit is supplied with a Certificate of Calibration, traceable to International Humidity Standards, validating accuracy to ±2oC dewpoint.

The built in Automatic Calibration (AUTOCAL) feature comes as standard on all the Model AMT range, this allows the user to carry out a field calibration, span check. The AUTOCAL feature is operated by means of two small button switches on the side of the transmitter enclosure (see picture). To avoid tamper, the switches are locked in normal use and can only be activated by following a certain routine.

The integral RISC microprocessor circuitry of the Model AMT transmitter allows high resolution with advanced self diagnostics for fault conditions. It also enables periodic re-calibration of the moisture sensor, storing calibration data within the fully self contained unit. Loop powered by a 7V to 28V dc source, the Model AMT transmitter will provide a linear 4-20mA signal over the chosen range.

The mechanics of the Model AMT transmitter have been designed to cope with extreme environmental conditions. The rugged stainless steel construction offers protection to IP66 (NEMA4X), with the transmitter electrical connections made via a secure industrial connector.

Model AMT transmitter can withstand 35,000 kPa (350bar) maximum pressure and by employing a low resistance cable, the transmitter can be located at significant distances, in excess of 1000 metres, from the control room. Designed with the operator in mind, for reliable and accurate measurements, the Model AMT transmitter is extremely easy to install and operate, requiring little or no maintenance.

The Model AMT transmitter is supplied with a Certificate of Calibration, an instruction manual and 2m connecting cable as standard.

We also offer and manufacture dew-point Sample Systems to your specifications for non-hazardous and hazardous applications. 
Clicking the link will re-direct you to our sister website amsystems.co.uk/sample systems.

· 2 Wire Loop Powered Dewpoint Transmitter
· Overall Range -120°C to +20°C (-184°C to +68°C) Dewpoint
· Accuracy ± 2°C Dewpoint
· AUTOMATIC CALIBRATION
· Can be Configured for Linear 4-20mA signal in: °C & °F · Dewpoint, ppm(v), ppb(v), g/m3, lb/MMSCF
· Temperature Compensation
· Failure Diagnostics
· Long Term Stability
· Fast Reponse
· IP 66 / NEMA4X Protection
· Supplied with Certificate of Calibration Traceable to · National & International Humidity Standards
Also available as intrinsically safe (See Model AMT-Ex dew-point transmitter)

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