Designed for the trace moisture measurement of process gases and dry compressed air.
SHAW Model AcuDew high performance dewpoint transmitter. A new, robust and reliable, 2 wire, 4-20 mA loop powered transmitter.
Utilising the ultra high capacitance SHAW moisture sensing technology, the AcuDew offers superior sensitivity, accuracy, repeatability and speed of response.
This dewpoint transmitter incorporates the SHAW AutoCal feature, thereby allowing users to check the span of the instrument and correct for any deviation between annual laboratory calibrations. Notably, AutoCal can be carried out in situ and without the need for skilled personnel or special equipment.
Various dewpoint ranges are available covering an overall range from -120 °C to +20 °C (-184 °F to +68 °F) dewpoint and output units are configurable in °C dewpoint, °F dewpoint, ppm(v), ppb(v), g/m³ and lb/MMSCF.
Built of a robust stainless-steel construction and an industrial M12 connector. The SHAW dewpoint transmitter can withstand extreme environmental conditions and is suited to harsh environments providing a protection rating of IP66 (NEMA 4X). The M12 connector reduces setup time by saving time installing and maintaining wiring systems.
AcuDew dewpoint transmitter provides a linear, 4 – 20 mA, signal over the chosen measurement range and is loop powered by a 7 – 28 V DC source (24 V option available). When installed in remote locations, the 4 – 20 mA signal can be transmitted to a control system over distances of up to 1,000 metres (3,280 feet).
Easy to operate, the SHAW AcuDew can be installed directly in to the process line or as part of a sample conditioning system and requires little or no maintenance. This new dewpoint transmitter has been tested to withstand pressures up to 35,000kPA (350 bar) and consequently can be directly connected into pipelines. Another key point, when installed correctly, there are no controls to operate during normal use because the AcuDew is designed for long term unattended operation.
The AcuDew dewpoint transmitter is fully compatible with the new range of single channel displays: AcuLoop plug in signal indicator for local display; the panel mount AcuVu with 4-20 mA retransmission and fully programmable alarms; and the AcuTrak with additional onboard pressure dewpoint calculations and RS485 communications, as well as the existing SU4 sample system.
Key features of Model AcuDew
Various dewpoint ranges are available covering an overall range from -120 °C to +20 °C (-184 °F to +68 °F) dewpoint.
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