Agilent Technologies 54621D manual To verify voltage measurement accuracy, Set up the oscilloscope

Testing Performance

To verify voltage measurement accuracy

To verify voltage measurement accuracy

This test verifies the voltage measurement accuracy. In this test, you will measure the output of a power supply using dual cursors on the oscilloscope, and compare the results with the multimeter reading.

Test limits: ±2.0% of full scale ±1 LSB*

•Full scale is defined as 16 mV on the 1 mV/div range.

•Full scale on all other ranges is defined as 8 divisions times the V/div setting.

*1 LSB = 0.4% of full scale

Table 3-4	Equipment Required to Verify Voltage Measurement Accuracy
	Equipment	Critical Specifications	Recommended Model/Part
	Power supply	14 mV to 35 Vdc,	Fluke 5820A or Agilent 3245A
		0.1 mV resolution
	Digital multimeter	Better than 0.01% accuracy	Agilent 34401A
	Cable	BNC, Qty 2	Agilent 10503A
	Shorting cap	BNC	Agilent 1250-0774
	Adapter	BNC (f) to banana (m)	Agilent 1251-2277
	Adapter	BNC tee (m) (f) (f)	Agilent 1250-0781
	Blocking capacitor		Agilent 10240B

Do this procedure first for Channel 1. Then repeat the procedure for Channel 2.

1Set up the oscilloscope.

a Adjust the channel 1 position knob to place the baseline at approximately

0.5division from the bottom of the display.

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