Megger TDS40, Operating Manual, Page: 58 / 71

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7.4 Connecting Cables, HV Couplings
Maintenance and troubleshooting include regularly checking the connecting cables such
as earth cables, mains cables and test cables for being in good repair. In addition to that
we recommend that the HV couplings at the Operating module and HV module should be
checked with regard to mechanical integrity and cleanness.
Make absolutely sure that after use the HV plug of the test voltage cable is again covered
with the included protective sleeve.
7.5 Operational and Error Messages
7.5.1 Classification of Messages
Operational and error messages occurring during the operation of the test and diagnosis
system are classified as follows:
Symbol Class Response What to do
U Operational message
about state of system
refer to instruction
manual
C Operational message
about switching
condition
confirm - continue
operation
F Error of type "fatal" HVOff confirm - restart system
T Error of type "trans"
HVOff confirm - repetition
possible
N Error of type "normal"
HVOff confirm - repetition
possible
W Warning none confirm - continue
operation
R Messages in remote
control mode
different No operational action
possible at the system
itself
For detailed information about the messages, please refer to the following paragraphs.