Baker D30R, User'S Manual & Operating Instructions

Page: 48 / 142

D30R Users Manual
48
Do Not Touch Test Leads while test is in Progress!
71-023 Rev C 5/8/2007
•
When increasing the applied voltage during a test, use a higher Volts/Div
setting so the entire trace stays visible on the screen. It is acceptable to
change this setting while testing. The Volts/Div control has no effect on
and does not limit the output voltage of the tester. It only controls the
display scale.
•
When removing Test Leads ALWAYS unclip the test leads. Do not jerk or
pull them from the motor leads.
•
Only touch the test leads with the Test Lead Select Switch in the GROUND
POSITION.
•
Never connect test leads from two or more testers on the same motor. This
includes connection of host and power pack unit leads to the same motor.
This warning also includes lead connections, even for grounding purposes.
•
Do not connect both the resistance test leads and the high voltage test leads
to the motor at the same time.
•
Please do not hesitate to contact Baker Instrument Company for technical
applications assistance at (970) 282-1200, or toll free at (800) 752-8272.
Fax your questions, information, printouts, diagrams, or photographs of
your tests to (970) 282-1010. E-mail is also available at
www.bakerinst.com .
Test Precautions
Before beginning a HiPot test of any kind, insure that the work area is safe.
Remove the line voltage from the motor (the motor is off), insure that there are
no power factor correction (PFC) capacitors, noise suppression filters, or surge
suppressors in the motor test circuit.
It may be noted that PFC capacitors or surge suppressors may be tested in part
with the Baker Tester. See the particular component’s manufacturer for more
information. If capacitors or surge suppressors are left in place, either the tester
will over current trip or the leakage current of the capacitor will be measured
along with the motor’s leakage resulting in an erroneous measurement of the
motor’s insulation properties.