TECPEL CL-327A Manual page 35

If the battery level is below 25% full, the adjustment operation can't be operated. And the LCD shows "ERR" in
the lower part.
9.1 Adjusting Voltage Source
Step 1: Using the key〔V〕, select DC voltage function.
Connect the lead cables for measurement to the standard
digital meter as shown in Figure 11.
Step 2: Pressing the〔RANGE〕key selects the right range.
Step 3: 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 right of the assistance districts part
respectively.
Step 4: 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 5: Press the〔25/100%〕key to save the CAL adjustment reading.
Step 6: Pressing the〔ZERO〕key shifts to the next setpoint.
Step 7: By repeating steps 3 to 6, you can adjust all the adjustment point assigned to that range.
Step 8: By repeating steps 2 to 7, you can adjust all ranges of the DC voltage source function.
digital meter
( KEITHLEY 2000)
Hi
Lo
Figure 11 Adjusting voltage source
35