Casella CEL Airborne particulate monitoring system - Manual (Page 52)

HB3256-03 Page 50
Power Supply: 110 / 230 v. a.c. 50-60Hz at typically 120 Watts.
Operating temperature: -10 °C to +40°C, 0 to 95% RH, non condensing.
Enclosure Dimensions: WxHxD =536x747x300 mm.
Inlet tube: Diameter 33.8mm, Length 388mm ( 750mm max length).
Enclosure: IP65 rating with wall mount brackets or galvanised steel frame.
Wind speed (optional): a 3 cup anemometer to measure wind speed and windrun.
Construction: anodised aluminium alloy.
Operating range: <0.4m/s to 75m/s.
Distance constant: 5.3(typ).
Accuracy:
±1% above 3m/s.
Wind direction (optional): Wind direction sensor utilising a low friction wire wound
potentiometer.
Construction: anodised aluminium alloy.
Distance constant: 2.3(typ).
Electrical angle: 0-355
°.
Max. wind speed: 75m/s.
Accuracy: 2 degrees in steady winds over 5m/s.
Temp/RH (optional): a combined sensor supplied fitted with a protective radiation shield.
Construction: plastic radiation shield, ABS case to IP65.
Humidity: capacitive sensor.
Range: 0 to 1v. output for 0 -100%.
Calibrated accuracy:
±2%.
Linearity: 5 to 95% RH ±1.5%.
Temperature: PRTD thin film sensing element.
Range: 0 to 1v. output for -40 to 60
°C.
Accuracy: ±0.3°C at 0°C, ±0.5°C at 50°C.