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Note:
Adjustment to the 100mV range calibrates the TC temperature measurement range at the same time.
Make sure the previous adjusting point has been saved before shifting to another one.
9.2 Adjusting Current Source
Step 1: Using the key 〔 mA〕 , select DC current function.
Connect the lead cables for measurement to the
standard digital meter as shown in Figure12.
Step 2: The LCD shows "CA-0" (or "CA-F") symbol on
the assistance districts part and the calibrator is ready
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 assistance districts part respectively.
Step 3: Read the calibrator output on the calibration
standard. Then, using the pair of〔〕/〔〕keys, adjust the reading so that it matches the measured CAL
adjustment setpoint. In the CAL mode, the right pair of〔〕/〔〕keys are used to increase or decrease the
least-significant digit, (the digit in the right of the LCD assistance districts part).
Step 4: Pressing the〔25/100%〕key to save the CAL adjustment reading.
Step 5: Pressing the〔ZERO〕key shifts to the next setpoint.
Step 6: By repeating steps 2 to 5, you can adjust all the adjustment point assigned to that range.
Note:
digital meter
(KEITHLEY2000 )
100
standard resistance
（ accuracy 0.005％）
Figure 12 Adjusting current source
Hi
Lo
36
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