Dew-point transmitter for low dew-points
-110 ... 20 °C, IP66, ATEX | AMT
Alpha Moisture Systems Ltd
A two wire 4-20mA loop powered transmitter, used for continuous measurement of humidity in a process gas or compressed air, which will output a linear 4-20mA signal corresponding to the dewpoint temperature. Can also be factory configured to output a 4-20mA linear signal for any other moisture unit e.g. ppm(v), ppm(w), g/m3, lb/MMSCF etc.
FEATURES
* 2 Wire Loop Powered Dewpoint Transmitter
* Overall Range: -120ºC to +20ºC Dewpoint
* Accuracy ± 2ºC Dewpoint
* AUTOMATIC CALIBRATION
* Can be configured for Linear 4-20mA signal in:
ºC & ºF Dewpoint, ppm(v), g/m3, lb/MMSCF
* Temperature Compensation
* Failure Diagnostics
* Long Term Stability
* Fast Response
* IP66 / NEMA4X Protection
The transmitter also incorporates an Automatic Calibration (AUTOCAL) feature, which allows the user to carry out a field calibration / span check. AUTOCAL feature is operated by means of two small button switches built within the transmitter enclosure.
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.
Model AMT transmitter can withstand 35,000 kPa (350bar) maximum pressure and by employing a low resistance cable, the transmitter can be located significant distances, in excess of 1000 metres, from the control room.
The Model AMT transmitter is supplied with a Certificate of Calibration
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