56
12.2 Adjusting Current Source
Step 1:
Using
〔
mA
〕
key, select DC current function.
Connect the lead cables for measurement to the standard
digital meter as shown in Figure 19.
Step 3:
The LCD shows “CA-0” or “CA-F” symbol on the
associate districts part and the calibrator is ready Figure 19 Adjusting current source
for the zero-point or F-point adjustment of source functions. The LCD shows the highest five digits and its unit
in the main districts part and the lowest digit of the
calibrated sourced value in the right of the assistance districts
part respectively.
Step 3:
Read the calibrator output on the calibration standard. Then, using the pair of
〔
S
〕
/
〔
T
〕
keys, adjust
the reading so that it matches the measured CAL adjustment setpoint. In the CAL mode, the right pair of
〔
S
〕
/
〔
T
〕
keys are used to increase or decrease the least-significant digit, (the digit in the right of LCD part).
Step 4:
Press the
〔
25/100%
〕
key to save the CAL adjustment reading.
(
accuracy
0. 005%)
digital meter
(KEITHLEY2000
)
Lo
Hi
100
Ω
standard resistance
Содержание KM-CAL-907
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