AM8010 Precision Thermometer User's Guide
Apply the calculated A and B,together with the new
low temperature data to:
R(t)=R(0ºC)*[1+At+Bt
Then C value can be calculated.
5. Key in the A,B,C and R0 to AM8010. The system
calibration is done.
Turn off the power after calibration.
7.2.2 Calibration of PRT (high precision 100 ohm or
standard 100 ohm Platinum Resistance
Thermometer with temperature coefficient
α=0.003925(W
1. Turn off power of AM8010, set it to Measurement
Mode. (See Chapter 4.1
2. Connect the sensor to AM8010. Power on AM8010,
and put the sensor into temperature bath or fixed point
cell.
3. Choose more than three temperature points to measure
based on the sensor's temperature range and ITS-90
standard.
4. These measurement data can be applied to the
calculation of sensor's temperature coefficients based
on ITS-90 formula.
For example, the following data are acquired between
0ºC to 300ºC.
Standard
temperature t
0.01ºC
>1.11807)
Ga
AM8010 measured R(t)
resistance value
R(0.01ºC)
2
3
+C(t-100)t
]
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