
To check the output of the CALIBRATOR
In this test you measure the output of the rear-panel CALIBRATOR output with
a multimeter and an oscilloscope. The
CALIBRATOR is used for
self-calibration of the 54615B, 54616B, and 54616C. The accuracy of the
CALIBRATOR is not specified, but it must be within the test limits to provide
for accurate self-calibration.
The
CALIBRATOR output produces dc voltages between 0 and 5V during
vertical calibration, and a square wave during delay calibration.
Test limits:
DC calibrator: 5.000 V ±10 mV and 0.000 V ± 500 µV
Delay calibrator: Vp-p = 900 mV ± 150 mV
Vavg = –450 mV ± 75 mV
Frequency = 2.46 kHz ± 100 Hz (54615B/16B)
2.08 kHz ± 100 Hz (54616C)
Table 4-2
Equipment Required
Equipment Critical specifications Recommended
Model/Part
Digital Multimeter 0.1 mV resolution, better than 0.01% accuracy Agilent 34401A
Cable BNC Agilent 10503A
Oscilloscope 100 MHz, 1 MΩ input R Agilent 54600
1 Connect a multimeter to the rear-panel CALIBRATOR connector.
2 Press Print/Utility .
3 Press the Service Menu softkey, then the Self Test softkey, and then the
DAC softkey.
The multimeter should measure 0.00 V dc ± 500 µV. If the result is not
within the test limits, see "Troubleshooting the oscilloscope," on page 4-32.
Service
Verifying Oscilloscope Performance
4-6
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