METERING
R
®
www.merkur-germany.com
Relay
METERING
R
®
Remote disconnection
In emergency the utility can send a command to the meter remotely to connect or to disconnect.
The meter will connect or disconnect the relay as soon as it receives the command. If the relay is
remotely disconnected, it can only be connected under the command of remote control. If the user
had opened the terminal cover, it is recommended that user or Utility team close the terminal cover
and connect the relay remotely.
Low credit disconnection during unfriendly hours
During normal hours, when the remaining credit are no more than second grade threshold, the red
indicator will flicker and the relay will disconnect to remind users to charge.
During normal hours, when the remaining credit is not enough for one charge (deduct), the relay
will disconnect. In this situation, user should charge ASAP, or push white button to activate over-
draft function. After connecting the relay by push button, the meter will trigger sound alarm, push
the white buttons 2 and 3 to stop it.
During normal hours, when the relay is disconnected because of using up overdraft amount, user
can only connect it by charging.
Low credit disconnection during friendly hours
After charging and not in the friendly hours, if the balance credit can support days which is not
more than the preset second grade threshold, or balance credit is not enough for one charge (de-
duct), or overdraft function is activated and used up, the relay will disconnect. But when it comes to
friendly hours first time after charging, the relay will connect automatically. When friendly hours are
over, the relay will disconnect. After that Users can connect the relay by charging.
In Friendly hours there is no disconnection of relay, it is purely based on the judgment of the ba-
lance credit, it only works when credit is low or out, but will not be activated when there is tamper
event, over load, over voltage and remote disconnection.
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