Calibration Procedure - Fluke 1560 Black Stack User Manual

SELECT A DEVICE TO CALIBRATE
>SPRT 1
After the device is selected a new window appears showing the parameters and
functions available from the device. New values can be entered for the parame-
ters using the numeric buttons and pressing ENTER. The UD buttons can be
used to move between parameters.
CALIBRATE DEVICE: STHR
0 ADJ: 0.0
10K ADJ: 0.0
100K ADJ: 0.0
CAL DATE: 05-21-96
SER NUM: A29123
For the 2563 Thermistor module the list of parameters includes 0_ADJ,
10K_ADJ, and 100K_ADJ as described above. The list also includes the cali-
bration date (CAL DATE) parameter, used to record the date the module was
calibrated, and the serial number parameter (SER NUM), used to record the se-
rial number of the module.
10.4.3

Calibration Procedure

Calibration requires adjustment of the 0_ADJ, 10K_ADJ, and 100K_ADJ pa-
rameters at three specific input resistances. If the resistances used are approxi-
mately 0Ω, 10 kΩ and 100 kΩ respectively the adjustments are independent
and the procedure is simple. The order in which the adjustments are performed
is important. The adjustment of the 100K_ADJ parameter must be performed
last as the adjustments of 0_ADJ and 10K_ADJ affect the measurement at 100
kΩ but 100K_ADJ does not affect the measurements at 0Ω and 10 kΩ. Either
channel can be used for calibration. Set the conversion type to R(W) to display
resistance (see Section 5.2.1.1 ). The accuracy required of the resistance stan-
dards is 1/4 of the instrument accuracy: that is ±0.025Ω at 0Ω, ±0.12Ω (12
ppm) at 10 kΩ, and ±1.2Ω (12 ppm) at 100 kΩ.The recommended procedure is
as follows:
TCS 2
STHR 3
10 2563 Thermistor Module
Calibration
137