Technical data

1 Calibration Procedures
Performance Verification Tests
18 U8030A Series Service Guide
5 Wait for a few seconds for the output of the power supply
to settle. Ensure that the power supply is in the CC mode.
6 Divide the voltage drop (DMM reading) across the current
monitoring resistor (R
M
) by its resistance to convert it to
ampere and record this value (I
O
). This value should be
within the limit of 0 A ± 15 mA.
7 When the power supply is in the meter mode, record the
current reading shown on the power supply. This value
should be within the limit of I
O
± 10 mA.
8 Disable the output.
9 When the power supply is in the limit mode, program the
output current to its full rated value, i.e., 6 A for U8031A
and 3 A for U8032A.
10 Enable the output.
11 Wait for a few seconds for the output of the power supply
to settle. Ensure that the power supply is in CC mode.
12 Divide the voltage drop (DMM reading) across the current
monitoring resistor (R
M
) by its resistance to convert it to
ampere and record this value (I
O
). This value should be
within the limit of:
• 6 A ± 33 mA for U8031A, and
• 3 A ± 24 mA for U8032A.
13 When the power supply is in the meter mode, record the
current reading shown on the power supply. This value
should be within the limit of:
• I
O
± 25 mA for U8031A, and
• I
O
± 17.5 mA for U8032A.