7
INSULATION RESISTANCE READINGS
Normal Ohm and Megohm Values between all leads and ground
Condition of Motor and Leads
Ohm Value
Megohm Value
A new motor (without drop cable).
20,000,000 (or more)
20 (or more)
A used motor which can be reinstalled in well.
10,000,000 (or more)
10 (or more)
Motor in well. Readings are for drop cable plus motor.
New motor.
2,000,000 (or more)
2 (or more)
Motor in good condition.
500,000 - 2,000,000
.5 - 2
Insulation damage, locate and repair.
Less than 500,000
Less than .5
Insulation resistance varies very little with rating. Motors of all HP, voltage and phase ratings have similar values of
insulation resistance.
Insulation resistance values above are based on readings taken with a megohmmeter with a 500V DC output.
Readings may vary using a lower voltage ohmmeter, consult factory if readings are in question.
ENGINEERING DATA
PUMP OPERATION
Figure 2
Determining Pumping Range
Figure 1
Pumpmaster and Pumpmaster Plus - Hard Wired
Engineering data for specific models may be found in your catalog and on our website (address is on the cover).
Control panel wiring diagrams are shipped with the control panels. Please use the control panel drawings in
conjunction with this instruction manual to complete the wiring.
Minimum Submergence
Continuous
Duty
Fully Submerged
Maximum Fluid Temperature
Continuous
Operation
200º F 93º C
6" (15.3 cm)
6" (15.3 cm)
8" (20.3 cm) TURN ON LEVEL
WEIGHT
Single-Action Float Switch
"Typical" Installation
Figure 3
Pumping
range
Wide-Angle Float Switch
Piggyback
switch plug
Pump plug
Figure 4
