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5
Verification and Performance Tests
Performance Verification Tests
CV load effect (load regulation)
This test measures the change in the output voltage resulting from a
change in the output current from full load to no load or vice versa.
1 Turn off the instrument and connect a digital multimeter between the
2 Turn on the instrument. Press Voltage to select the constant voltage
3 Set the output voltage to the full rated value (30 V for S1 range) and
4 Connect an additional electronic load across the front panel
5 Operate the electronic load in constant resistance mode, and set its
6 Output the full rated value in the order shown below. Record the output
7 Within a few seconds after
8 Compare the difference between the measurement results to the
Table 5-10 Constant voltage load effect verification test
30 V with 30 Ω load
158
front panel
(red) and
page 144).
mode. Ensure that the S1 (30 V/1 A) range is selected (the S1
annunciator is illuminated). Press Shift >
current to full scale.
and
(black) output terminals in parallel with a digital multimeter
(see
Figure 5- 6
on page 144).
resistance to 30 Ω . Ensure that the U3606A is operating within the
specified limit and protection values. If not, adjust the electronic load
by increasing the resistance so that the current drops slightly until the
U3606A is operating within the specified limit and protection values.
voltage reading on the digital multimeter.
mode. Record the output voltage reading on the digital multimeter.
appropriate test limits shown in
Output voltage
(black) output terminals (see
Range
step
6, operate the electronic load in open
Table 5-
10.
Range
30 V
Figure 5- 6
again if it is not.
Error from nominal 1 year
±0.009 V
U3606A User's and Service Guide
on
(red)
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