DataGet the precision gage interface system DataGet®  Precision Gauge Interface System  
DataGet Thermocouple interface with Visor and k-Type probe


How to Collect Temperatures Accurately

Introducing the DataGet Thermocouple

The DataGet thermocouple module combines a +/-0.2C accurate temperature reference with a 24 bit Analog Digital Converter (ADC) to give you the most precise Palm based thermocouple reader.

All thermocouple readers must adjust for the local temperature. Inexpensive systems use a cheap transistor to “compensate” for the local temperature.

The DataGet cartridge uses a precision thermistor, hooked to our 24 bit ADC to adjust for local temperatures.

Thermocouples are not linear, and the electronics must compensate for this. Simple readers use a look up table to adjust for errors. These work well for some temperatures but are not so accurate at other temperatures.

DataGet software uses proprietary Chebyshev Polynomials to provide +/- 0.05 degree accuracy over the entire j and k thermocouple range. It also saves space on the handheld, and is fast to calculate.

DataGet Thermocouple specifications

A/D converter resolution (bits) 24
Thermistor accuracy +/- 0.2C
Thermocouple temperature
range
-200C(-328F) to
 1250C(2282F)
Thermocouple types j,k
Jack type mini plug
Display units C or F
Active power <10mW
Shutdown power <400µW
Calibration points 2 or 3
Max sample rate <1 second

 


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