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Removal of errors
Fault
Display dark.
A measured value
display cannot be re-
trieved.
No current indicated.
Current too small.
Wrong current.
Wrong voltage L-N.
Voltage L-L too small
/ too big.
Possible reason
Fuse may have released.
Device defective.
The display has been deleted
from measured value selec-
tion.
The corresponding measuring
voltage has not been con-
nected.
Current measurement in
wrong phase.
Current measurement in
wrong phase.
Current transformer ratio badly
programmed.
Exceeding of measuring
range.
The maximum current input is
exceeded by harmonics.
The current at measuring in-
put has been underscored.
Measurement in wrong phase
Voltage transformer wrongly
programmed.
Outer conductors exchanged.
Wrong connection.
Remedy
Renew fuse.
Send device to the manufacturer for re-
pair.
The desired display must be added into
the measured value selection.
Connect the corresponding measured
voltage.
Check and correct connection.
Check and correct connection.
Read CT ratio on CT and program cor-
rectly.
Select and program CT with higher ratio.
Select and program CT with higher ratio.
Attention! Please ensure, that the meas-
uring inputs are not overloaded.
Select and program CT with lower ratio.
Check and correct connection.
Read voltage transformer ratio at voltage
transformer and program accordingly.
Check and correct connection.
Attention! Please ensure, that the meas-
uring inputs are not overloaded.
Check and correct connection.
Содержание UMG 96S
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