METERING
R
®
www.merkur-germany.com
Meter & Key Function Introduction
METERING
R
®
Item
Sub-item
Parameter
Integrated Disconnect /
Reconnect Switch
(Meter)
Maximum
Switching current(A)
120 A
Relay disconnected
In the following situation the relay will disconnect
automatically, the reason can be read through PC
software:
1) When load power exceeds the preset threshold, the
relay will open automatically
2) When applied voltage exceed sthe preset
threshold, the relay will open automatically
3) hardware error
4) When the credit balance is less then the calculated
number of days as preset under grade 2 alarm.
5) When the terminal cover is opened(INHIBIT is on)
6) Local communication or remote communication
sends command.
7) When the credit left is less than the unit price, and
overdraft function not activated.
8) When the credit left is not enough and the
overdraft function has been consumed
Load control
- Overload threshold and overload start, overload
recovery time are all configurable:
- After overload relay disconnects, it will automatically
connect at the recovery time.
- If the Relay disconnects 3 time in 90 mins,
customer needs to press the button on UIU to
connect the relay. One can get the last apparent
power exceed value of the overload through PC
software.
9