B&K Precision 2542B Manuel d'utilisateur télécharger pdf (Page 239)

Performance Verification Procedure

239

The only parameter that can be user calibrated is the DC gain

accuracy. If any of the other parameters, bandwidth, trigger

sensitivity, or time scale accuracy does not meet published

specifications, the unit must be returned to B&K Precision for repair.

The oscilloscope under test must be warmed up for at least 30

minutes prior to the start of any performance test.

DC Gain Accuracy

Equipment needed

: Fluke calibrator (preferred) or DC power supply,

DMM, splitter, 2 BNC cables

1. Disconnect all cables from the oscilloscope channel inputs.

2. Press the Acquire front panel key.

3. In Acquire menu, press the Mode soft key until Averages

appears.

4. Turn the entry knob until “256” appears.

5. In Acquire menu, press Sampling soft key and set to “Real

Time”.

6. Set CH1 probe attenuation to 1X in CH1 menu.

7. Press Measure button and select Voltage, then go to page

2/4 and select Average.

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B&K Precision 2542B Manuel d'utilisateur Page 239