6 Performance Tests and Calibration
170 Keysight U1253B User’s and Service Guide
Current terminals test
This test determines whether the input warning for the current terminals is
functioning properly.
Turn the rotary switch to any non-off position other than . Insert the
tests leads to the A and COM terminals. An error message Error ON A INPUT (as
shown in Figure 6-2) will be displayed on the secondary display, and a continuous
beep will persist until the positive lead is removed from the A terminal.
Figure 6-2 Current terminal error message
Before conducting this test, make sure the beep function is not disabled in Setup.
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