Matco Tools MD79 Manual Del Usuario página 13

& 3-Phase Rotation function
Inputs are made through the test lead terminals L1/L2/L3. Phase
Rotation directions are indicated as symbolic movements by the LCD
segments. Defaults at
between and
: Hi-sensitivity mode, which detects relatively low signal outputs
generated from motor spinning, for checking phase connections
of Motors.
: Normal-sensitivity mode for identifying phase sequence of
MAINS (electricity supply).
CAUTION
Proper Rotation detection relies on solid signal connection to all three
test lead terminals simultaneously. Any single disconnection will lead to
detection failure and may produce false indication. To verify signal
connection and hence proper meter indication, swap any two connects
(between the meter and the test points) to check for indication of
reverse movement
. Press SELECT button momentarily toggles
modes.
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