Table 5-13 Constant Current Load Effect Verification Test - Agilent Technologies U3606A User's And Service Manual

5 Verification and Performance Tests
Performance Verification Tests
5 Operate the electronic load in constant resistance mode, and set its
6 Output the full rated value in the order shown below. Divide the voltage
7 Within a few seconds after
8 Compare the difference between the measurement results to the

Table 5-13 Constant current load effect verification test

3 A with 2.5 Ω load
CC source effect (line regulation)
This test measures the change in output current 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 0.01 Ω current shunt monitoring
2 Connect the AC power line through an AC voltage source. Adjust the AC
3 Turn on the instrument. Press Current to select the constant current
4 Set the output current to the full rated value (3 A for S2 range) and
5 Connect an additional electronic load across the front panel
164
resistance to 2.5 Ω . Ensure that the U3606A is operating within the
specified limit and protection values. If not, adjust the electronic load
by reducing the resistance so that the voltage drops slightly until the
U3606A is operating within the specified limit and protection values.
drop (reading on the digital multimeter) across the current monitoring
resistor by its resistance. Record the output current reading on the
digital multimeter.
mode. Record the output current reading on the digital multimeter.
appropriate test limits shown in
Output current
resistor across the front panel
and a digital multimeter across the current shunt monitoring resistor
(see Figure 5- 10
voltage source to provide nominal input voltage to the instrument.
mode. Ensure that the S2 (8 V/3 A) range is selected (the S2
annunciator is illuminated). Press Shift >
voltage to full scale. Enable the output.
and (black) output terminals (see
step 6, operate the electronic load in short
Table 5-
Range
3 A
(red) and
on page 146).
13.
Error from nominal 1 year
±0.0012 A
(black) output terminals
Range
again if it is not.
Figure 5- 10 on page 146).
U3606A User's and Service Guide
(red)