5
Performance Checks
Test Procedures
5-35
Test Procedure:
1. Manually reset the 5251 to reset and arm the totalize function
2. Manually trigger the function generator and verify that the 5251
counter reading is 100
±
1
Test Results
Pass
Fail
Totalize, Infinite
Equipment: Function Generator with at least 1 ppm accuracy
Preparation:
1. Configure the function generator as follows:
Frequency: 100
MHz
Wave:
Square
Amplitude 500
mV
2. Connect the function generator to the 5251 TRIG IN connector
3. Configure the 5251, as follows:
Auxiliary Function: Counter/Timer
Function: Totalize,
Infinite
Trigger Level:
0 V
Test Procedure:
1. Verify that the display is updated continuously with the
totalized counts
2. Verify that the reading is held at 4000000000 counts and that
the overflow indication turns on
Test Results
Pass
Fail
3. Change the function generator run mode to Burst and set
Burst Count to 1000000
4. Press the Reset/Arm button on the 5251 to reset and arm the
totalize function
5. Manually trigger the function generator and verify that the
5251 counter reading is 1000000
±
2
Test Results
Pass
Fail
Summary of Contents for 5251
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