Technical data

Calibration Procedures 1
Performance Verification Tests
U8030A Series Service Guide 21
9 Compare the reading obtained in step 7 and step 8. The
difference should be within the limit of:
• 3.2 mA for U8031A, and
• 2.6 mA for U8032A.
CC noise
CC noise is specified as the RMS output current in a
frequency range 20 Hz to 20 MHz with the power supply in
the CC operation.
Procedure:
1 Power off the power supply, and connect the output to be
tested as shown in Figure 1- 4 to an AC/DC converter and
load resistor (5 Ω for U8031A, 20 Ω for U8032A).
2 Power on the power supply.
3 When the display is in the limit mode, program the
output voltage to the maximum programmable value and
the output current to its full rated value, i.e., 6 A for
U8031A and 3 A for U8032A.
4 Enable the output.
5 Ensure that the power supply is in the CC mode. If not,
adjust the resistive load so that the output voltage drops
slightly until the power supply is in the CC mode.
Line voltage, Vac
Low line
voltage limit, Vac
High line
voltage limit, Vac
10090110
115 104 127
230 207 253