100
PLZ-4WL
CC Mode Calibration (Calibration numbers 1, 2, and 3)
Perform calibration on the Low, Mid, and then High range. For each item, start calibration at
step A.
■
CC mode settings
The current settings for each model are listed below.
Calibrating the low range
■
Step A: Calibrate the offset values of the internal reference voltage for
current settings and of the measured values.
1
Connect a shunt resistor that matches the value corresponding to 10 %
of the maximum low range value.
2
Press MENU (SHIFT+SET/VSET).
The menu screen appears.
3
Use to select “3. Calibration,” and then press ENTER.
4
Use and to select “1. CC(Low).”
5
Connect a constant-voltage power supply to the load input terminals,
and apply 3.3 V. Set the power supply current to approxi2 % to 5
% of the load device’s rated current.
6
Press ENTER.
The load turns on automatically, and the offset calibration (CC (Low) Offset
Adjustment) screen appears.
Current
Range
Percentage
of the Full
Scale (%)
Calibrated Items
Internal reference voltage
for current settings.
Measured Values
Internal Reference Voltage for
the Protection Function Settings
Offset
Gain
Offset
Gain
Offset
Gain
Low
10
Step A
–
Step A
–
Step B
–
100
–
Step C
–
Step C
–
Step D
Mid
10
Step A
–
Step A
–
Step B
–
100
–
Step C
–
Step C
–
Step D
High
10
Step A
–
Step A
–
Step B
–
100
–
Step C
–
Step C
–
Step D
Calibration Number and Item
Output Setting of
the Power Supply
Current to Be Matched
PLZ164WL
PLZ334WL
1
CC (Low)
Offset
Voltage:
3.3 V
Current:
Rated current of
the load device
50 mA ± 0.05 mA
100 mA ± 0.1 mA
Gain
500 mA ± 0.5 mA
1 A ± 1 mA
2
CC (Mid)
Offset
500 mA ± 0.5 mA
1 A ± 1 mA
Gain
5 A ± 0.005 A
10 A ± 0.01 A
3
CC (High)
Offset
5 A ± 0.005 A
10 A ± 0.01 A
Gain
50 A ± 0.05 A
100 A ± 0.1 A