Operation; Measuring - Minipa MFA-840A Manual De Instrucciones

4) OPERATION

A. Measuring
Before making any measurement, read the "SAFETY
INFORMATION" section with attention and remember of
all warnings. Always check the instrument regarding
damages, contamination (excessive dust, grease, ...)
and defects. Check the test leads against cracks or
defects in the insulation. In the case of any abnormal
condition is detected, do not take any type of
measurement.
1. Connect the test leads with colored alligator clips in
the terminals of the three phase power supply where
the rotary electrical machine, as a motor, will be
connected. The sequence of test leads connection is
optional.
2.Make sure that all LEDs to check open phase are lit. In
this case the phases are not opened. When some of 3
LEDs are not lit we have an open phase.
• If the lamp of phase verification "R" does not light: the
terminal where the red alligator claw is connected is
with the phase open
• If the lamp of phase verification "S" does not light: the
terminal where the black alligator claw is connected is
with the phase open
• If the lamp of phase verification "T" does not light: the
terminal where the blue alligator claw is connected is
with the phase open
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