20
= Key1
= Key 2
= Key 3
= Max. value or consumption = Min. value or supply
Faults
Possible reason
Remedy
Indication dark
External prefuse has released. Replace prefuse.
Internal prefuse has released.
The fuse cannot be changed by the user. Please
send the device back to the manufacturing works.
Contrast setting too dark.
Change contrast settings in configuration menu.
Device faulty.
Please send the device to the manufacturer for
repair.
Bad legible display
Contrast setting too dark
Set contrast in configuration menu.
No current indication
Measurement voltage not
Connect measurement voltage.
connected
Current too small
Current measurement in the
Check and correct connection.
wrong phase.
Current transformer factor
Read current transformer ratio on current transf.
programmed incorrectly.
and program correctly.
Wrong current
Current measurement in the
Check and correct connection.
wrong phase.
Current transformer factor
Read current transformer ratio on current transf.
programmed incorrectly.
and program correctly.
Measuring range exceeded.
Install bigger current transformer.
The peak current value on
Install bigger current transformer.
meas. input was exceeded
caused by harmonics.
Attention: Please ensure, that the measuring
inputs are not overloaded.
The current on measuring
Install smaller current transformer.
input was underscored.
Voltage L-N too small
Measurement in wrong phase. Check and correct connection.
Voltage transformer factor
Read current transformer ratio on current
programmed incorrectly.
transformer and program correctly.
If the voltage is not measured via voltage transf.
please program a voltage transf. ratio of 400/400.
Voltage on measuring input
Install smaller voltage transformer.
out of measuring range.
Voltage L-N incorrect
Measurement in wrong phase. Check and correct connection.
Voltage transformer factor
Read current transformer ratio on current
programmed incorrectly.
transformer and program correctly.
If the voltage is not measured via voltage transf.
please program a voltage transformer ratio of
400/400.
Measured range exceeded.
Install bigger current transformer.
The peak voltage value on
Install bigger current transformer.
meas. input was exceeded
caused by harmonics.
Attention: Please ensure, that the measuring
inputs are not overloaded.
Voltage L-L too small/
Outer conductors exchanged.
Check and correct connection.
too big
N not connected.
Check and correct connection.
Phase shift ind /cap too Current path is assigned to
Check and correct connection.
small or big
the wrong voltage path.
Program. data get lost
Battery empty.
Please send device to the manufacturer for
exchanging the battery.
The device has been exposed External protection measure such as shielding,
to electromagnetical interfer.
filtering, earthing or spatial separation.
bigger than the allowed by.
Removal of errors