Apogee SL-610 Benutzerhandbuch - Seite 11

Blättern Sie online oder laden Sie pdf Benutzerhandbuch für Messgeräte Apogee SL-610 herunter. Apogee SL-610 18 Seiten. Pyrgeometer

Sensor Calibration

Apogee SL-510 and SL-610 pyrgeometers are calibrated in a temperature controlled chamber that houses a

custom-built blackbody cone (target) for the radiation source. During calibration, pyrgeometers (detectors) are

held in a fixture at the opening of the blackbody cone, but are thermally insulated from the cone. Detector and

target temperature are controlled independently. At each calibration set point, detectors are held at a constant

temperature while the blackbody cone is controlled at temperatures below (approximately 20 C for first set point

and approximately 6 C for second set point, but dependent on detector temperature) and above (approximately 6

C, but dependent on detector temperature) detector temperature. The range of detector temperatures is -25 C to

50 C (set points at 15 C increments). Data are collected at each detector temperature set point, after detectors and

target reach constant temperatures.

All SL-510 and SL-610 pyrgeometers have sensor-specific calibration coefficients determined during the custom

calibration process. Unique coefficients for each sensor are provided on a coefficient certificate (example shown

below).

Calibration overview data and specific calibration coefficients are listed in the upper section of the calibration sheet,

followed by the calibration procedure. Calibration traceability information and calibration dates are in the lower section of

the sheet.