480400 V2..0 7/07

5

Operation

Determine Phase Rotation Direction

1. Connect the supplied color-coded test leads to the meter’s test

lead input jacks at the top of the meter.

2. Connect the test probes to the three mains phases for the system

under test.

3. L1, L2, and L3 indicators will illuminate one at a time on the

meter’s LCD display as each phase is connected.

4. The clockwise and counter-clockwise arrows with the left/right ‘L’

or ‘R’ icons display the phase rotation direction of the device

under test.

5. The sequence grid simply shows the three line sequences for

Clockwise ‘R’ and the three line sequences for Counter-Clockwise

‘L’.

Note: The rotational arrow indicators illuminate even if one of the test

probes is connected to a neutral or ground conductor instead of one

of the mains phases.