Motor Insulation Resistance - Xylem Goulds CentriPro Series Service Manual

1. Set the scale lever to R x 100K and
adjust to 0.
CAUTION
Open (turn off) master breaker and
disconnect all leads from control box or
pressure switch (Q-D type control, remove
lid) to avoid damage to meter or electric
shock hazard.
2. Connect an ohmmeter lead to any one of
the motor leads and the other to the metal
drop pipe. If the drop pipe is plastic, connect
the ohmmeter lead to the metal well casing
or ground wire.
Drop
Cable
with
Ground
Wire
36
R x 100
R x 100K
R x 10
R x 1
OHMS
ZERO
OHMS
R x 1000
R x 10K
R x 100K