Kipp&Zonen CFR Calibration Facility - Manual (Page 21)

CFR manual
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4.3 Shading mechanism
The shading mechanism serves to obtain the dark (zero-offset) signal of the pyranometers and the
measurement chain. The shading mechanism blocks all light illuminated from the lamp.
4.4 Lamp mounting pillar
The lamppost serves to position the lamp at a certain height above the pyranometers. In view of the fact
that the packaging has to stay within certain limits, the lamppost consists of two parts. The lower part is
painted black in order to avoid reflections of the lamp.
4.5 Lamp housing
4.5.1 115VAC/60 Hz Calibration Facility
The 115 VAC / 60Hz calibration lamp is a PAR CDM luminaire, constructed of cast
aluminium with non-corroding hardware and fittings.
4.5.2 230VAC/50 Hz Calibration Facility
The 230 VAC / 50Hz calibration lamp is a medium-sized, high-grade, rotation-
symmetrical floodlight with a narrow beam.
4.6 Lamp bulb
The lamp serves to generate an input signal for comparing the pyranometer responses. The calibration of
the reference is usually done outdoors under sunlight. It should be noted that if the reference and test
pyranometers are of the same type, neither the spectrum nor the intensity of the calibration lamp need to
exactly simulate sunlight because both pyranometers will be affected similarly.
Product Identification Philips MasterColor CDM-T 150W/942 G12 T6 1CT
Power 150 W
Average Life 12000 hrs
Lamp Voltage 90 V
Color Description 942 Cool White
Color Temperature 4200 K
Initial Lumens 12700
Design Mean Lumens 8900