14
Voltage Unbalance
1. Set the Dial to V range
2. Press and hold RANGE and MIN/MAX button to enter Phase rotation mode.
Press RANGE button to enter Voltage Unbalance test mode
Upper display indicates “V1V2”
Press Min/Max button to enter Testing standby mode.
“V1V2” will blink on display
NOTE:
Steps 3 - 4 needs completed within 30 seconds. If not, the display will
indicate “oVEr” and the meter will finish the testing.
3. Connect test leads to any two lines (V1 – V2) of the 3-Phase voltage lines
A beep indicates stable voltage is captured, and the Upper display shows
“V1V3”
4. Remove Red Test lead from the voltage line
A beep and “V1V3” blinking on display will indicate test is ready.
Connect the Red test lead to the third voltage line (V1 – V3)
5. A beep indicates test is complete
Upper display will indicate test result (PASS or FAIL)
Lower display will indicate the percentage:
PASS % unbalance <2%
FAIL % unbalance > 2%
% V unbalance = (Max deviation from Avg Voltages/Avg Voltage) x 100
Current Unbalance
1. Set the Dial to A range
2. Press and hold RANGE and MIN/MAX to enter Current Unbalance test mode
Lower Display will indicate “A”
3. Press Min/Max button to enter testing standby mode
“-A1-” will blink on display
NOTE
: Each of steps 4 – 6 needs to be conducted within 30 seconds. If not,
the display will indicate “oVEr” and the meter will finish the testing.
4. Clamp the jaw around current line (A1)
A beep indicates stable current is captured, and the Lower display shows
“-A2-“
Remove clamp jaw from current line
A beep and “-A2-“ blinking on display will indicate test is ready.
5. Clamp the jaw around current line (A2)
A beep indicates stable current is captured, and the Lower display shows
“-A3-“
Remove clamp jaw from the current line
A beep and “-A3-“ blinking on display will indicate test is ready.
6. Clamp the jaw around current line (A3)
A beep indicates stable current is captured
Upper display indicates test results (PASS or FAIL)
Lower display will indicate the percentage:
PASS % unbalance <10%
FAIL % unbalance > 10%
%
I
unbalance = (Max deviation from Avg Currents/Avg Currents) x 100