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Neutral-V
This message appears on the display if there is voltage present on the Neutral of the DUT
input receptacle.
Leak-OC
This message appears on the display if the voltage of MD circuit exceeds the rating voltage.
5.3.2 Fatal Error
All of the buttons and keys are not active in this situation. This type of failure permanently
locks the instrument in the “Fatal Error” mode and requires that the instrument be serviced by
EXTECH . The customer should contact EXTECH Electronics Co., Ltd. to receive further
instruction.
The following Fatal Error identification numbers will represent type of the failure that has
occurred:
Error Code 9001
will appear on the display, if the instrument has a recognizable internal
component failure.
Error Code 9002
will appear on the display, if the instrument’s System data or the
Model/Option/Serial Number data are corrupted and do not match the settings.
Error Code 9003
will appear on the display, if the instrument’s Calibration data is corrupted.