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ManualsBrandsKEYSIGHT TECHNOLOGIES ManualsTest & MeasurementDigital multimeter, U1270-series, 30000 counts, CAT III 1000 V, CAT IV 600 V
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1 Calibration Procedures
Basic Operating Test
6 U1271A/U1272A Service Guide
Current terminal input test
This test determines if the input warnings of the current
terminals are functioning properly.
A-Err test
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 secondary display
will indicate , as shown in Figure 1- 2.
Figure 1-2 A-Err display
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.
μA-Err test
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 secondary display
will indicate , as shown in Figure 1- 3.
Before conducting this test, ensure that the beep function is not disabled
in the multimeter’s Setup.