140 U1253B User’s and Service Guide
6 Performance Tests and Calibration
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.