1
Calibration Procedures
24
Keysight U1281A/U1282A Service Guide
Input warning test (
terminal)
The multimeter sounds a continuous alert beep when the test lead is inserted into
the
terminal but the rotary switch is not set to the
function. The
multimeter displays an input warning error (
The alert beep tone will continue to beep until the test lead is removed from the
terminal or until the rotary switch is set to the
function.
Perform the following steps to replicate the
terminal input warning test:
1
Turn the rotary switch to the
position.
2
Insert the red test lead to the
input terminal.
3
Insert the black test lead to the
input terminal.
mA
NOTE
Before conducting this test, make sure the beep alert function is enabled in the
setup mode.
mA
mA
mA
mA
mA
V
mA
COM