Hold/Auto-Hold
Press
Action
Main Display
Secondary Display
Holds the measurement value in the display
Measurement value when
hold pressed
Input value
Enters Auto-Hold function
1
Measurement value when
multimeter beeps
Range
Cancels Hold function
Measurement value
Range
1
Auto-Hold Operation. When measurement becomes stable, multimeter will beep and save the stable
reading. Removing probe from measuring circuit will display and hold the last stable reading.
Range
Press
Action
Main Display
Secondary Display
Changes from auto-ranging to manual
ranging
Measurement value
Range
Change manual range
UP once with each keypress
1
Measurement value
Range
Returns to auto-ranging when key is held
for 1 second
Measurement value
Range
1
When upper range is reached, the sequence begins again at the lowest range.
Select
Press this key to use the functions indicated in yellow on the multimeter. See table on page 1-8.
To test display, hold this key when turning meter on.
HP 973A: Not all annunciators turned on during the display test.
Operation
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