102
PLZ-4WL
CV Mode Calibration (Calibration numbers 4 and 5)
Calibrating the mid range
Calibrate the Mid range in the same way that you calibrated the Low range. In step 4 , select
“2. CC(Mid).”
Calibrating the high range
Calibrate the High range in the same way that you calibrated the Low range. In step 4 , select
“3. CC(High).”
The calibration of CC mode is complete after you calibrate the High range.
CV Mode Calibration (Calibration numbers 4 and 5)
Perform calibration on the Low range and then on the High range. For each item, start
calibration at step E. The shunt resistor will not be used, but you can leave it connected.
■
CV mode settings
The current settings for each model are listed below.
Calibrating the low range
Monitor the input voltage using an external voltmeter.
■
Step E: Calibrate the offset values of the internal reference voltage for
voltage settings and the measured values.
1
Use and to select “4. CV 4V.”
2
Connect a CC power supply to the load input terminals, and supply 0.5
A. Set the power supply voltage to 4.5 V or greater.
Voltage
Range
Percentage
of the Full
Scale (%)
Calibrated Items
Internal Reference
Voltage for Voltage
Settings
Measured Values
Internal Reference
Voltage for the
Protection Function
Settings
Offset
Gain
Offset
Gain
Offset
Gain
Low
10
Step E
–
Step E
–
Step F
–
100
–
Step G
–
Step G
–
Step H
High
10
Step E
–
Step E
–
Step F
–
100
–
Step G
–
Step G
–
Step H
Calibration Number and Item
Output Setting of
the Power Supply
Voltage to Be
Matched
4
CV 4V
Offset
Voltage: 4.5 V
Current: 0.5 A
0.4 V ± 0.2 mV
Gain
4 V ± 2 mV
5
CV 30V
Offset
Voltage: 31 V
Current: 0.5 A
3 V ± 1.5 mV
Gain
30 V ± 15 mV
