Specifications 2
34980A Service Guide 43
Configuring for Highest Accuracy Measurements
The measurement configurations shown below assume that the internal DMM is in its
Factory Reset state. It is also assumed that manual ranging is enabled to ensure proper
full scale range selection.
DC Voltage, DC Current, and Resistance Measurements:
• Set the resolution to 6 digits (you can use the 6 digits slow mode for further noise
reduction).
• Set the input resistance to greater than 10 G
(for the 100 mV, 1 V, and 10 V ranges)
for the best dc voltage accuracy.
• Use 4-wire ohms and enable offset compensation for the best resistance accuracy.
AC Voltage and AC Current Measurements:
Set the resolution to 6 digits.
• Select the slow ac filter (3 Hz to 300 kHz).
Frequency and Period Measurements:
Set the resolution to 6 digits.
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