Self test
General
In
Operation menu self test
Confirming the menu selection “self test” with the soft key “ok” displays an error number (“Er#xx”), the amount and a scrolling text in the lower line on the display. Using the cursor keys lets you select individual error numbers. The actual meaning of these numbers is explained in the table on page 47. The number shows how often a specific error has occurred. The scrolling text records the first and last occurence of the error (see “setting clock”). The EXIT key terminates this menu (return to the prior menu level).
Note: Error no.1 only counts the switching “on” and “off” of the DMM 4650, but does not lead to an external error display (Power On Reset).
In case that error no.14 leads to the blinking of the green POWER LED, the data of one or more messages has been corrupted. The corresponding message(s) is(are) marked with an asterisk (*) (see also page 14).
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