Temperature VS Resistance Data in °F


Temperature Coefficient of .003916 ohm/ohm/°C
REF. JIS-C-1604-81

JIS Temp vs Resistance Chart °F

 

Temperature Coefficient of .00385 ohm/ohm/°C
REF. DIN 43760

DIN Temp vs. Resistance Chart °F

 


Temperature VS Resistance Data in °C


Temperature Coefficient of .003916 ohm/ohm/°C
REF. JIS-C-1604-81

JIS Temp vs Resistance Chart °C

 

Temperature Coefficient of .00385 ohm/ohm/°C
REF. DIN 43760

DIN Temp vs Resistance Chart °C

 

Laboratory Accuracy

Each ARiDET® RTD can be supplied with an exact (±.01 ohm) resistance value obtained at 32°F(0°C). This individual calibration data can be used to obtain accuracies of ±0.05°F at 32°F and ±0.01% of resistance throughout the range.

Using these Temperature Charts

The temperature vs. resistance tables are based on a 32°F ice point resistance of 100.00 ohms (R0). From 32°F to sensor upper limit, the RTD equation is Rt=R0(1+At+Bt²) where R0, A & B are constants. These temperature vs. resistance tables are based on the A, & B constants for the platinum wire used in place of 100 ohms, the tabular data can be factored to yield ±0.01% accuracy for that particular RTD sensor.

Example: If the calibrated R0 value is 99.89 ohms, multiply tabular values by 0.9989 to derive a corrected R vs T table. At 100°C the new value for a DIN 43760 RTD would be 138.35 ohms instead of 138.50 ohms.

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