Campbell Scientific 107-L Temperature Probe - Manual (Page 11)

Model 107 Temperature Probe
Edlog Temp (107) (P11)
Polynomial
Linearization Error: <±0.1 °C (–24 to 48 °C)
<±0.5 °C (–35 to 50 °C)
FIGURE 6-1. Linearization error, where error is the difference between
actual and datalogger computed temperature.
1 The overall probe accuracy is a combination of the thermistor interchangeability specification, the
precision of the bridge resistors, and the error of the Steinhart-Hart equation used in CRBasic
instruction Therm107() (CRBasic dataloggers), or the error of the polynomial fit used in Edlog
instruction Temp (107) (P11) (Edlog dataloggers). The major error component is the
interchangeability specification of the thermistor. For the range of 0 to 50 °C, the
interchangeability error is predominantly offset and can be determined with a single point
calibration. The offset can be entered in the measurement instruction Offset parameter. Bridge
resistors have 0.1% tolerance with a 10 ppm temperature coefficient.
Probe Length: 10.4 cm (4.1 in)
Probe Diameter: 0.762 cm (0.3 in)
Weight with 10 ft Cable: 136 g (5 oz)
7. Installation
If you are programming your datalogger with Short Cut, skip Section 7.1,
Wiring to Datalogger, and Section 7.2, Datalogger Programming. Short Cut
does this work for you. See Section 4, Quickstart, for a Short Cut tutorial.
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