Apogee Instruments SP-230 Manuel du propriétaire - Page 10
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10
OPERATION AND MEASUREMENT
Connect the sensor to a measurement device (meter, datalogger, controller) capable of measuring and
displaying or recording a millivolt (mV) signal (an input measurement range of approximately 0-250 mV is
required to cover the entire range of total shortwave radiation from the sun). In order to maximize
measurement resolution and signal-to-noise ratio, the input range of the measurement device should
closely match the output range of the pyranometer.
SP-110: The sensor is self-powered and applying voltage will damage the sensor.
SP-230: Only apply voltage to the integrated heaters. The sensor is self-powered and applying
voltage will damage the sensor.
All Apogee un-amplified pyranometer models have a standard calibration factor of exactly:
-2
5.0 W m
per mV