OVERVIEW
Quality Control at Your Fingertips: Monitor & Measure Dewpoints Easily
The Superdew 3 single channel hygrometer is designed to measure dewpoint in process gases and dry compressed air. The panel mounted enclosure provides panel protection to IP54.
The combination of the highly accurate, repeatable SHAW moisture sensor and advanced digital electronics, make this the instrument of choice for a wide range of applications where precise measurement, control and monitoring is critical. Each dewpoint sensor is calibrated to provide an overall system accuracy of better than ±2 °C (±3.6 °F) dewpoint and supplied with a Certificate of Calibration traceable to National & International Humidity Standards.
Superdew 3 can be user configured to display in °C, °F, ppm(v) or lb/MMSCF on an easy to read five character LED display.
The instrument offers two fully programmable alarm relays, which can be independently set across the full operating range of the dewpoint sensor. Set points can be viewed and adjusted from the front panel keypad.
An isolated 4-20 mA analogue output is supplied as standard. The span of this output can be configured across the range of the dewpoint sensor and the system allows for the Superdew 3 instrument to be sited in excess of 1,000 metres away from the sensor.
The Superdew 3 Dewpoint Hygrometer Package is fully configured according to customer specification and consists of the Superdew 3 single channel analyser, the SHAW moisture sensor, a sensor holder and two metres of sensor cable.
Features
- User selectable digital indication in °C, °F, ppm(v) or lb/MMSCF
- Accuracy ±2 °C (±3.6 °F) dewpoint
- Various ranges: overall range -100 °C to +20 °C (-148 °F to +68 °F) dewpoint
- Universal input: 90 V to 250 V AC (24 V DC option available)
- Automatic calibration (AutoCal)
- Two alarms (view/adjust set points from front panel)
- Linear isolated 4 – 20 mA retransmission signal, adjustable span
- Fully interchangeable SHAW sensors and ranges
- Two years guarantee on meter and dewpoint sensor
- IP65 rated front panel
- Large clear digital display with back light
- User friendly and advanced functionality
- Supplied with Calibration Certificate traceable to National & International Humidity Standards
SPECIFICATIONS
Superdew 3
Sensor SHAW Ultra High Capacitance Aluminium Oxide Sensor Ranges P (Purple): -100 °C to 0 °C dewpoint 0-6,000 ppm(V)
S (Silver): -100 °C to -20 °C dewpoint 0-1,000 ppm(V)
G (Grey): -80 °C to 0 °C dewpoint 0-6,000 ppm(V)
R (Red): -80 °C to -20 °C dewpoint 0-1,000 ppm(V)
B (Blue): -80 °C to +20 °C dewpoint 0-23,000 ppm(V)Approvals CE and UKCA AutoCal Field calibration/span check facility. Activated and
operated via potentiometer on the front of the
instrument.Factory Calibrations Supplied with Certificate of Calibration traceable to the
National Physical Laboratory (NPL)Accuracy ±2 °C (±3.6 °F) dewpoint
NPL traceable -90 °C to +20 °C (-130 °F to +68 °F)Reasolution 0.1 °C, 0.1 °F dewpoint or 0.1 ppm(v) Repeatability Better than ±0.3 °C (±0.54 °F) dewpoint Operating Temperature -20 °C to +60 °C (-4 °F to +140 °F) Storage Temperature -20 °C to +70 °C (-4 °F to +158 °F) Response Times Wet to dry: -20 °C to -60 °C – less than 120 secs
Dry to wet: -100 °C to -20 °C – less than 20 secsSample Flow Rate Flow independent but ideally 2 – 5 litres per minute
Max: 25 litres/minCalibration Warranty 12 months from date of dispatch Electrical
Electromagnetic Compatibility (ECM) Immunity: Complies with EN 61326:2006
Emissions: Complies with EN 61326:2006Warm Up Time 5 seconds Fault Conditions Short circuit/over range: display reads “Short” and output
drives to 24.0 mAOutput Signal Isolated 4 – 20 or 0 – 20 mA Linear Operating Voltage 90 to 250 V AC 50/60 Hz or 24 V DC Display 5 character LED Alarms Two single pole changeover contacts (NO/C/NC), rated at
10 A at 240 V AC. Alarm trip at set point with 0.1 °C (or
equivalent) hysteresis to eliminate relay chatterCable Supplied with two metre low loss coaxial cable Mechanical
Operating Pressure From 1kPa (0.01 barA) to maximum 35,000 kPa (350 barA) Operating Humidity (External) Maximum – 95% RH non-condensing Enclosure DIN Style, 144 mm wide, 72 mm high by 116 mm deep ABS
caseMounting Panel mount 138.0 x 68.0 mm (DIN 43700) Sensor Protection 316 sintered stainless steel filter – 50 micron Probe Material (Wetted Parts) 316 stainless steel Weatherproof Classifications Front panel only – IP54
Shaw Superdew 3 – Hygrometer for Moisture in Dry Air and Gas
$0.00 ex GST
The SUPERDEW 3 Model from Shaw Moisture Meters is a single channel on-line hygrometer designed to measure dewpoint in process gases and compressed air.
