Application Example - Beta 1760/OHM Manual Del Usuario Y Operador

Press the MAX/MIN key to activate the Absorbance & Polarization measurement mode. The LH
auxiliary display shows Absorbance measurement, the RH auxiliary display shows Polarization
measurement.

aPPlication eXamPle

1. Power tools and amall appliances
This test also applies to other similar equipment that has a line cord. For double insulated power
tools, the megohmmeter lead shown, connected to the housing, should be connected to some metal
part of the tool (e.g.chuck,blade).
Note: The switch of the device must be set to "ON" and the main power should be disconnected.
2. motors
AC motors - Disconnect the motor from the line by disconnecting the wires at the motor terminals
or by opening the master switch. If the main switch is used and the motor also has a starter, then
the starter must be maintained, by some means, in "ON" position. In the latter case, the measured
resistance will include the resistance of the motor, wire and all the other components between
the motor and the main switch. If a weakness is indicated, the motor and the other components
should be checked individually. If the motor is disconnected at the motor terminals, connect one
megohmmeter lead to the grounded motor housing and the other lead to one of the motor leads.
DC motors - Disconnect the motor from the line. To test the brush rigging, field coils and armature,
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