Table of Contents
Advertisement
CV source effect (line regulation)
This test measures the change in output voltage that results from a change
in AC line voltage from the minimum value to the maximum value.
1 Turn off the instrument and connect a digital multimeter between the
2 Connect the AC power line through an AC voltage source. Adjust the AC
3 Turn on the instrument. Press Voltage to select the constant voltage
4 Set the output voltage to the full rated value (30 V for S1 range) and
5 Connect an additional electronic load across the front panel
6 Operate the electronic load in constant resistance mode, and set its
7 Adjust the AC voltage source to the low line voltage limit. Record the
8 Within a few seconds after
9 Compare the difference between the measurement results to the
Table 5-11 Constant voltage source effect verification test
100
U3606A User's and Service Guide
front panel
(red) and
page 144).
voltage source to provide nominal input voltage to the instrument.
mode. Ensure that the S1 (30 V/1 A) range is selected (the S1
annunciator is illuminated). Press Shift >
the current to full scale. Enable the output.
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.
output voltage reading on the digital multimeter.
high line voltage limit. Record the output voltage reading on the digital
multimeter.
appropriate test limits shown in
Low line
Input AC line
voltage limit
90 V
Verification and Performance Tests
(black) output terminals (see
step
7, adjust the AC voltage source to the
Table 5-
High line
voltage limit
110 V
ac
Performance Verification Tests
Figure 5- 6
Range
again if it is not.
11.
Error from
nominal 1 year
±0.003 V
ac
5
on
(red)
159
Advertisement
Table of Contents
