AcuDew Dewpoint Transmitter Specification Sheet
3Pages

AcuDew High Performance Dewpoint Transmitter The Shaw Moisture Meters AcuDew Dewpoint Transmitter is a compact, 2 wire, 4-20 mA loop powered transmitter, used for trace moisture measurement of process gases and dry compressed air. Utilising the ultra high capacitance SHAW dewpoint sensor, the AcuDew is a robust and reliable dewpoint transmitter, offering excellent sensitivity, repeatability and speed of response. The AcuDew dewpoint transmitter also incorporates the SHAW AutoCal feature to ensure accuracy between laboratory calibrations. AcuDew provides a linear 4-20 mA signal over the chosen measurement range, loop powered by a 7-28 V DC source. Various dewpoint ranges are available, covering an overall range from -120 °C to +20 °C dewpoint (-184 °F to +68 °F). The output is configurable in °C dewpoint, °F dewpoint, ppm(V), ppb(v), g/m3 and lb/MMSCF. The rugged stainless-steel construction and industrial M12 connector provide a protection rating of IP66 (NEMA 4X) and can withstand extreme environmental conditions across a wide range of industrial applications. The AcuDew dewpoint transmitter has been tested to withstand pressures up to 35,000kPA (350 bar) for direct connection in to pipelines. Easy to install and operate, requiring little or no maintenance, AcuDew offers reliable and accurate measurements. The microprocessor circuitry of the AcuDew dewpoint transmitter drives its high resolution to provide advanced self-diagnostics for fault conditions. When installed in remote locations, the 4-20 mA signal can be transmitted to a control system over distances up to 1,000 meters (3,280 feet). The AcuDew is fully compatible with the Acu range of single channel displays: the AcuLoop plugin signal indicator for local display; the panel mount AcuVu with 4-20 mA retransmission and fully programmable alarms; and the AcuTrak with additional on-board pressure dewpoint calculations and RS485 communications. AcuDew is supplied ready to use, with a Certificate of Calibration traceable to National and International Humidity Standards at NPL, instruction manual and two metres of cable. AcuDew shown with AcuLoop plug in display. AcuLoop sold separately. Features • 2-wire, loop powered, 4-20 mA dewpoint transmitter • Various ranges: overall range -120 °C to +20 °C dewpoint (-184 °F to +68 °F) • Accuracy ±2 °C dewpoint (±3.6 °F) • Output configurable in °C dewpoint, °F dewpoint, ppm(V), ppb(v), g/m3 and lb/MMSCF AutoCal (automatic calibration) feature Open/short circuit detection Weatherproof rating IP66 (NEMA 4X) Fully compatible with the single channel displays: AcuLoop, AcuVu, AcuTrak, SU4 sample

DEWPOINT SENSOR SPECIFICATIONS • Sensing Element: Shaw Ultra High Capacitance - Aluminium Oxide Sensor • Ranges: Dewpoint = 0.1 °C/0.2 °F resolution ZD: -100 °C to +20 °C (-148 °F to +68 °F) dewpoint HD: -65 °C to +20 °C (-85 °F to +68 °F) dewpoint 0.1 ppb - 1,000 ppm(V) Go (Gold) -120 to -20 °C (-184 to -4 °F) dewpoint P (Purple): -100 to 0 °C (-148 to +32 °F) dewpoint 0 - 6,000 ppm(V) S (Silver): -100 to -20 °C (-148 to -4 °F) dewpoint 0 - 1,000 ppm(V) G (Grey): -80 to 0 °C (-112 to +32 °F) dewpoint 0 - 6,000 ppm(V) R (Red): -80 to -20 °C (-112 to -4 °F) dewpoint 0 - 1,000 ppm(V) B...

Related Products Ordering Information AcuLoop Plug In Display • Four digit, LED, plug in display • Loop powered • Connects directly to the AcuDew transmitter • Self-contained and robust • Adjustable display: 210° rotation on its stem and 360° rotation (four x 90 increments) on its axis for inverted viewing To order an AcuDew Dewpoint Transmitter AcuVu Hygrometer • Panel mount • Four digit LED display • Two programmable relay alarms • 4-20 mA analogue output • User selectable units: °C, °F, ppm(V), g/m3 and lb/ MMSCF AcuTrak Hygrometer • Single channel inline • 4-20 mA analogue output • Two...