Model 103 -Thermistor

Price: $32

MicroLAB's Thermistor uses a negative temperature coefficient (NTC) thermistor housed in a durable stainless steel shaft to provide quick and accurate temperature readings.

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Quick Facts


Applications: Temperature, Thermistor Theory, Heat of Neutralization

Features: Accurate, Small Thermal Mass, Fast Response

Technical Description

The Thermistor Temperature Probe, like all NTC thermistors, decreases in resistance as temperature increases.   The MicroLAB Interface measures this resistance by applying a precisely measured voltage, accurately measuring the returned current, and applying Ohm’s Law (R = V/I) to calculate resistance.  One can, if desired, use the formula tool to calculate and display this resistance to explore the temperature/resistance response of the sensor.  

MicroLAB software utilizes the Steinhart-Hart equation to calculate the temperature of the thermistor, a technique used throughout industry and in research labs. Since the Steinhart-Hart relationship is non-linear, the effective resolution of the temperature measurement increases with increasing temperature.   At 0°C, the resolution is 0.01 °C, at 20 °C it is 0.006 °C, and at 70 °C it is 0.001°C. 


Technical Specifications

Temperature Range:

-10 to 100 C

Accuracy:

± 0.2° C

Resolution at 0, 20.070 degrees C:

0.10, 0.006, 0.001° C

Probe Length:

Overall Length:

37° ± 1°

Cable:

CAT- 5

MicroLAB Input:

CAT- 5 Input A, B or C

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