Kikusui PLZ-4W Series, User Manual

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PLZ-4W Maintenance and Calibration 8-11
CV mode calibration (calibration number 4 and 5)
Carry out calibration on the 15-V range items fi rst according to steps E to H. Then,
carry out calibration on the 150-V range items.
The shunt resistor is not used, but you can leave it connected.
Table 8-4 Overview of the procedure
■
Low range calibration
Step E: Calibration of the offsets of internal reference voltage for out-
put setting and measured value
1. Press the or CURSOR key to select the calibration number “4. CV 15V”.
2. Connect a CC power supply to the load input terminal and supply 0.3 A.
Set the voltage of the power supply to 15.5 V or greater.
3. Press the ENTER key.
The load automatically turns on, and the offset calibration (CV 15V Offset
Adjustment) screen appears.
Fig. 8-8 CV 15V Offset Adjustment screen
Procedure
Voltage
range
Percentage with
respect to the full
scale
(%)
Calibration item
Internal reference
voltage for output set-
ting
Measured value
Internal reference
voltage for protection
function setting
Offset Gain Offset Gain Offset Gain
E
15V
10
– – – –
F – – – – –
G
100
– – – –
H – – – – –
E
150V
10
– – – –
F – – – – –
G
100
– – – –
H – – – – –
Offset Adjustment
PREV NEXT
DAC REF : 0x0001
MON : 0x0001
CV 15V
Cursor
Indicates hexadecimal.
Displays the current
calibration value
(hexadecimal) first.