Elma Instruments DT902, User Manual

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Elma DT902 side 10
Determine the Motor Connection
•
Connect one end of the test leads to the Motor and Phase Rotation indicator. Make
sure the L1, L2, and L3 test leads are connected to the corresponding jack.
•
Connect the alligator clamps to the other end of the test leads.
•
Connect the alligator clamps to the motor connections, L1 to U, L2 to V, L3 to W.
•
Press the ON/OFF button. The green ON indicator shows that the instrument is
ready for testing.
•
Turn the motor shaft half a revolution towards the right.
Note
The bottom of the Motor and Phase Rotation indicator should be oriented towards the
drive shaft. See the Orientation Symbol on the Motor and Phase Rotation indicator.
Either the Clockwise or Counter Clockwise Rotary indicator illuminates showing the type of
rotary field direction present.
Magnetic Field Detection
To detect a magnetic field, place the Motor and Phase Rotation indicator to a solenoid
valve.
A magnetic field is present if either the Clockwise or the Counter Clockwise Rotary
indicator illuminate.
Note
The Motor and Phase Rotation indicator contains alkaline batteries. Do not dispose of
these batteries with other solid waste. Used batteries should be disposed of by a qualified
recycler or hazardous materials handler.
The Motor and Phase Rotation indicator uses a 9V battery (supplied). To replace the
battery, follow these steps.
1. Place the Motor and Phase Rotation indicator face down on a nonabrasive surface
and loosen the battery-door screw with a screwdriver.
2. Life the battery access lid away from the Motor and Phase Rotation indicator.
3. Observe the battery polarity shown in the battery compartment.
4. Secure the battery access lid back in position with the screw.