Model 107 Temperature Probe
4
mount the 107 and limit solar radiation loading. See Section
(p. 4)
, for a complete list of compatible dataloggers.
6. Specifications
Features
•
Measures air, soil, or water temperature
•
Compatible with AM16/32-series multiplexers
•
Easy to install or remove
•
Durable
•
Compatible with the following CRBasic dataloggers: CR300 series,
CR6 series, CR800 series, CR1000, CR1000X series, CR3000, and
CR5000
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:
136 g (5 oz)
Length:
10.4 cm (4.1 in)
Diameter:
0.762 cm (0.3 in)
Compliance:
View the EU Declaration of Conformity at
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.
