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Chapter 3: Testing Performance

Offset Accuracy Test

Offset Gain Test

Make the connections to scope channel 1 as shown below.

Connections

Set up the DMM to perform DC voltage measurements.

Configure the scope to measure V avg on Channel 1 as follows:

a Press Default Setup.

Notes:

• Where it is used, it is important to connect the BNC Tee adapter directly to the scope channel input

to minimize ground potential differences and to ensure that the DMM measures the input voltage to

the scope channel as accurately as possible. Differences in ground potential can be a significant source

of measurement error, particularly at high scope sensitivities.

• It also helps to reduce ground potential differences if the scope and DMM are connected to the same

AC supply circuit.

• A fairly large number of averages are used in the scope measurements of this section to reduce

measurement noise and to reduce the measurement error due to resolution.

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Agilent Technologies Ininiium 90000 Spezifikationen Seite 25