Campbell Scientific 108-LC Temperature Probe for MetData1 User Manual
Page 10
Model 108-LC Temperature Probe for MetData1
6
For most applications it is unnecessary to calibrate the 108 to eliminate the
thermistor offset. However, for those users that are interested, the following
briefly describes calibrating the 108 probes.
A single point calibration can be performed to determine the 108 temperature
offset (thermistor interchangeability). This calibration will not remove the
polynomial error. The value of the offset must be chosen so that the probe
outputs the temperature calculated by the polynomial, not the actual calibration
temperature. For example, a 108 is placed in a calibration chamber that is at
0
°C and the probe outputs 0.1°C. The offset is -0.15, because at 0°C the
polynomial calculates a temperature of -0.05
°C (Table 5-2).
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