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DEWPOINT SENSOR
Sensing Element: SHAW Ultra High Capacitance Aluminium Oxide Sensor
Ranges: -80 °C to 0 °C dewpoint, 0 - 6,000 ppm(V)
Accuracy: ± 2 °C (± 3.6 °F) dewpoint, NPL traceable -90 °C to +20 °C (-130 °F to +68 °F)
Sensor Calibration: Supplied with Certificate of Calibration traceable to National and International Humidity Standards at NPL.
Repeatability: Better than ±0.3 °C dewpoint
Pressure Correction: Integral calculator to display pressure dewpoints. Gauge pressure can be entered in kPa, kg/cm2, bar or psi.
Temperature Coefficient: Temperature compensated for operating range.
Sample Flow Rate: Flow independent but ideally 2-5 litres per minute. Max: 10 litres per minute
Response Times
Wet to dry: -10 °C to -60 °C (+14 °F to -76 °F) - less than 120 seconds
Dry to wet: -100 °C to -20 °C (-148 °F to -4 °F) - less than 20 seconds
SAMPLE CONNECTION: 0.25” (1/4”)
MAINS PLUG TYPE - For Battery Charger: EU
MECHANICAL
Dimensions and Weight: Overall dimensions: 97 mm (w) x 147 mm (d) x 211 mm (h (259 mm with head extended)) (313/16 x 525/32 x 85/16 (1013/64) inches) 1.75 kg (3.8 lbs)
Operating Pressure: Maximum 0.3 bar (4 psi)
Operating Humidity (External): Maximum - 95% RH non-condensing
Operating Temperature: -20 °C to +50 °C (-4 °F to +122 °F)
Storage Temperature: -30 °C to +70 °C (-22 °F to +158 °F)
Sensor Protection: 316 sintered stainless steel filter - 50 micron
Weatherproof Classification: IP66 NEMA 4X
ELECTRICAL
Display: Full colour graphics LCD, 320 x 240 (24 bits) resolution
Power Supply: Rechargeable Li-ion battery. Battery charger included.
Battery Life: In excess of 150 hours of use between charges
Time to Full Charge: 12 hours
Resolution: 0.1 °C, 0.1 °F dewpoint or 0.1 ppm(V)
Repeatability: Better than ±0.2 °C dewpoint
SHAW SDHmini USER TOOL SOFTWARE
Data Logging: 300,000 readings. Date and time stamped data, stored in chosen units of measurement, for download to PC.
Data Location: 20 separate Location IDs can be entered (alphanumerical) by user for data collection at preprogrammed locations.
Sampling Rates: User selectable (in intervals of five seconds) from once every five seconds to once a day.
Data Display: Numerical and graphical
Real Time Recording: Device can be programmed to monitor, record and graphically present data in real time directly to PC.