Testing The Installation; Securing The Enclosure; Maintenance - Leviton Mini Meter MMU Manuel D'installation

4 INSTALLATION INSTRUCTIONS
4.6

Testing the Installation

Testing Voltage
The LCD will turn on when the Mini Meter has the proper power supply. Voltage
should also be tested using an AC Voltmeter to verify that the voltage across
voltage line terminals (L1 to Neutral and L2 to Neutral) is not in excess of the
maximum rated voltage in section 3.2.
CT Reverse Phase Indicator
Reverse phase is indicated on the LCD in the lower left corner of the display.
If an arrow is displayed, power down the voltage supply and verify that all CTs
are installed correctly.
Load LED
The load LED is described in section 3.3. This LED should be cycling at 50% duty
cycle when the meter is connected properly and a sufficient load is applied.
4.7

Securing the Enclosure

In accordance with safety requirements, MMUs must be secured using the
provided key lock once installation is complete. The purpose of the lock is to
prevent access to live parts that pose potential safety risks. To install the lock,
slide through the provided holes on the clamp side of the enclosure and fasten
securely.
5

MAINTENANCE

Properly installed meters with sound connections and secure conduit fittings should not
require user maintenance. If the meter is functioning abnormally, consult the Troubleshooting/
FAQ guide. If the answer cannot be found there, contact Technical Support.
20