Campbell-scientific 108-LC Temperature Probe for MetData1 Manuel d'utilisateur télécharger pdf (Page 10)

Model 108-LC Temperature Probe for MetData1

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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Campbell-scientific 108-LC Temperature Probe for MetData1 Manuel d'utilisateur Page 10