Performance verification procedures
Before beginning these procedures, two conditions must be met:
■
The oscilloscope must have been operating continuously for twenty minutes within the operating temperature range
specified in the Environmental Performance table.
■
You must perform the Self Calibration operation described below. If the ambient temperature changes by more than 5 °C,
you must perform the Self Calibration operation again.
The time required to complete the entire procedure is approximately one hour.
WARNING. Some procedures use hazardous voltages. To prevent electrical shock, always set voltage source outputs to 0 V
before making or changing any interconnections.
Self test
This internal procedure is automatically performed every time the oscilloscope is powered on. No test equipment or hookups are
required. Verify that no error messages are displayed before continuing with this procedure.
Signal calibration
The self calibration routine lets you quickly optimize the oscilloscope signal path for maximum measurement accuracy. You can
run the routine at any time, but you should always run the routine if the ambient temperature changes by 5 °C or more.
1. Disconnect all probes and cables from the channel input connectors (channels 1 and 2).
2. Push the Utility button and select the Do Self Cal option to start the routine. The routine takes approximately one minute to
complete.
3. Verify that self calibration passed.
Check DC gain accuracy
This test checks the DC gain accuracy of all input channels.
1. Set the DC voltage source output level to 0 V.
2. Set up the oscilloscope using the following table:
Push menu button Select menu option Select setting
Default Setup - -
Channel 1 Probe 1X
Acquire Average 16
Measure Source Channel under test
Measurements Mean
Performance verification
TBS1000C Series Specification and Performance Verification 15
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