No Load Test; Starting Load For Active Energy; Starting Load For Reactive Energy; Set Time & Date, Id Numbers, Battery Time - Landis+Gyr ZMQ202 User Manual

7.1.5

No Load Test

Note
7.1.6

Starting Load for Active Energy

7.1.7

Starting Load for Reactive Energy

7.2 Set Time & Date, ID Numbers, Battery Time
H 71 0200 0215 f en - ZMQ202 / ZFQ202 - User Manual
Maintenance
Test voltage Up of 1.15 Un, current 0.3 x starting load
1. Switch off the current for at least 10 seconds.
2. Switch on the test voltage Up and current 0.3 x starting load.
The energy flow arrows must disappear. The green optical test outputs
are permanently lit.
3. Run the test for 5 minutes. The meter must not deliver more than one
pulse during the test. Check the energy reading for changes in test
mode. The last digit of the display must not increase by more than 1.
Local regulations
In some countries, the longer observation time must be longer than 5
minutes. Follow the local the local regulations.
Apply a load current of 0.05% of the nominal current ln (other values may
be selected in the parameter setting) and the voltage Un (three-phase in
each case) at cos ϕ = 1 . The meter must start registering.
Apply a load current of 0.1% of the nominal current ln (other values may
be selected in the parameter setting) and the voltage Un (three-phase in
each case) at sin ϕ = 1 . The meter must start registering.
The following values can be changed at any time from the service menu
Set mode :
• Date and time
• Identification numbers
• Operating time of battery
Below is an example of how to set the date and time.
Key:
Short press down display button (<2s)
Long press down display button (>2s)
Short press up display button (<2s)
Long press up display button (>2s)
Short press down display button until "End" is displayed then long
press down display button
Alarm reset button (under utility's seal)
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