Campbell 107

l Compatible CRBasic data loggers: CR6, CR3000, CR1000X, CR800-series, CR300-series,
CR1000
6. Specifications
Sensor element: Measurement Specialties 100K6A1iA thermistor
Survival range: –50 to 100 °C
Measurement range: –35 to 50 °C
Time constant in air: 30 to 60 s in a wind speed of 5 m/s
Maximum cable length: 305 m (1000 ft)
Accuracy
1
Worst case: ±0.4 °C (–24 to 48 °C)
±0.9 °C (–35 to 50 °C)
Interchangeability error: ±0.10 °C (0 to 50 °C)
±0.20 °C at –10 °C
±0.30 °C at –20 °C
±0.40 °C at –30 °C
±0.50 °C at –40 °C
Steinhart-Hart equation error: ≤ ±0.01 °C (–35 to 50 °C)
Probe weight and dimensions
Weight with 10 ft cable:
Length:
Diameter:
Compliance:
136 g (5 oz
10.4 cm (4.1 in
0.762 cm (0.3 in
View the EU Declaration of Conformity at
www.campbellsci.eu/107
1
Overall probe accuracy is a combination of thermistor interchangeability, bridge-resistor accuracy, and error of the
Steinhart-Hart equation. Bridge resistors have 0.1% tolerance with a 10 ppm temperature coefficient.
Interchangeability is the principle component error. If needed, an estimate of the interchangeability error for 0 to
50°C, that can be used as the Offset parameter of the Therm107() instruction, can be determined with a 1-point
or 2-point calibration.
107 Temperature Probe5