janitza UMG510, Руководство по эксплуатации

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Troubleshooting
Initial operation
Problem Cause What to do
No display external fuse blown replace fuse
internal fuse blown internal fuse is not user serviceable
unit defective contact manufacturer for service
weak or dark display contrast bad set contrast
no current reading current transformer check wiring
not connected or
shorted
current reading CT ratio not set check CT ratio setting
not correct
wrong line used check wiring
Voltage reading VT ratio not set check VT ratio setting
not correct
wrong line used check wiring
Phase angle reading neutral not connected check wiring
not correct wrong line used
current/voltage line
mismatch
Date/time not set Date/time has been Set date/time (use
reset by firmware NTP server or PAS 510)
update
Internal battery weak
contact factory for
battery replacement
Active power reading Bad VT/CT setting check VT/CT setting
not correct current/voltage line check wiring
mismatch
#### A reading Current range overload Check CT ratio
setting, use other CT
#### V reading Voltage range overload Check VT ratio setting,
use other VT
#### at flicker Wait Pst (10min), Plt
reading (2h) interval
No signal at digital No output source Check output setting
or pulse output selected
Everything checked, unit defective contact factory for service
still erroneous operation