Landis & Gyr 5235 User Manual & Technical Information page 10

Page 10 of 21
© Landis+Gyr
Issue: 45
through the meter. The reverse energy warning message is triggered when
the reverse power exceeds a programmable threshold level of between 1-
10 Amps for a period of 10Wh. Once this level is reached the message
below will be displayed which can only be reset via the IEC 1107 port.
Whilst in this mode the LED will remain lit whilst there is reverse energy
detected.
Reverse Energy Detection Message
Unidirectional Register
An optional requirement is to accumulate both import and export energy
into the same register. Basically this will be the sum of adding both forward
and reverse energy resisters. The register would be shown as the normal
kWh display as below:
A
F B
E C
D
Total Display
No Power Read (option)
This allows the user to take meter readings when there is no mains
electricity supply. This is achieved by installing a battery supply board that
powers the meter. The user applies a magnet to the outside of the meter
case and the meter powers up for 20 to 30 seconds. During this time the
meter displays the sign on and then displays the energy registers.
5235 Single Phase Credit Meter – User Manual & Technical Specification
Operational Functions