Baker D30R, User Manual

Page: 77 / 82

Troubleshooting
12/3/2009 | 71-022 V6
D30R 77
Current bar operation can be tested by shorting test lead #1 and the ground lead together.
Under this condition, the voltage bar will NOT move off the zero line and the current bar
should rise
very rapidly and activate the HiPot Overcurrent Trip warning light ( HiPot Trip ). If
the HiPot Trip light does not light, check for open test leads at either test lead #1 or the
ground lead (see Open Condition Check) . If the problem persists, contact Baker Instrument
Company, an SKF Group Company Service Department.
HiPot over current trip check
The HiPot trip lamp either does not activate (under known shorted conditions) or it will not go
out when test is discontinued.
Call the Service Department immediately for assistance. Please
record information off the unit and the specific problem prior to calling.
Open ground check
The open ground warning prevents testing. Answer these questions:
1)
Has the unit recently been moved to a new location with possibly an ungrounded outlet?
2)
Is the unit being operated in a field where the AC power source is unknown?
3)
Is the unit being operated on a scope cart that has its own outlet or power source?
4)
Is the unit being operated using a two-wire extension cord?
5)
Is the unit being operated on a transformer isolated circuit?
If any of these questions were answered yes, the unit is probably operational and indicates an
open AC line ground connection.
In the case of numbers 1 through 3 above, use an outlet tester to assure proper wiring
connections to the outlet. For number 4, replace the two-wire extension cord with a two-
wire/with ground extension cord. For number 5, or any of the conditions Noted above, use a
grounding strap to a good earth ground.
In the case of number 5, call Baker Instrument Company, an SKF Group Company Service for
assistance. There is an override available but precautions should be taken.
Limited output surge waveform
The display shows a limited output (amplitude) surge waveform. The display rises normally but
stops at some point. Alternatively, continually increase the output control for successive tests to
achieve the same output test amplitude.
Call the Service Department immediately for assistance on this or any other abnormal
condition Note: Please record basic information from the tester and the specific problem prior
to calling.
Warranty return
Please review the Warranty Note and Shipment sections at the beginning of this manual
before sending the tester to Baker Instrument Company, an SKF Group Company for
Warranty repair.
The Warranty Return Form on the following page MUST BE FILLED OUT and RETURNED
with the tester to obtain warranty service. This form will help to ensure that Baker Instrument
Company, an SKF Group Company will identify the problem, quickly repair our unit, and
return it.