Specifications

Diagnostic Testing Details 4
TS-8900 Functional Test System Diagnostics User Guide 4-5
Test 004: 53220A GPIB Universal Frequency Counter
• This test group consists of 3 tests. First test is performing
instrument self test, waits for the instrument to complete the test,
and queries the instrument for the results.
• For second test, counter is connected to the DMM. The counter
output is enabled and the expected 50 ohms resistance present in
matrix path is measured using the DMM and compared to limits.
Next, the counter’s output is disabled and a High Z resistance
measurement is made and compared against limits. Figure 4-2
illustrates this test for Channel 1.
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