5 Verification and Performance Tests
Additional Verification Tests
168 U3606A User’s and Service Guide
Optional square-wave output verification test
This test verifies that the square- wave amplitude, frequency, and duty
cycle functions are within specifications. Note that the measurement
values over the remote interface should be identical to those displayed on
the front panel.
Square-wave amplitude output verification test
1 Turn off the instrument and connect an oscilloscope between the front
panel (red) and (black) output terminals (see Figure 5- 12 on
page 147).
2 Turn on the instrument. Press to select the square- wave mode.
Ensure that the S1 (30 V/1 A) range is selected (the S1 annunciator is
illuminated). Press Shift > Range again if it is not.
3 Output each value in the order shown below. Record the output voltage
reading on the oscilloscope. Compare the measurement results to the
appropriate test limits shown in Table 5- 16.
4 Repeat step 2 and step 3 for the S2 (8 V/3 A) range. Press Shift > Range
to select the S2 range (the S2 annunciator is illuminated).
1000 μF 1000 μF±15 μF
10000 μF 10000 μF±250μF
Table 5 - 15 Optional capacitance gain verification test
Input capacitance Range Error from nominal 1 year
For the best accuracy, take a zero null measurement with open test leads
to null out the test lead capacitance, before connecting the test leads to
the calibrator.
You should consider programming the U3606A over a remote interface for
this test to avoid round off errors. See the U3606A Programmer’s
Reference for more information on remote interface programming.
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