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1 — User Safety and General Operation
Safety Precautions
Read and follow all safety precautions and safe operating practices in your guide. Do not exceed maximum operating
capabilities of the Baker Power Packs, or the Baker AWA and Baker DX testers used with these units.
The general safety information presented here is for both operating and service personnel. You will find specific
warnings and cautions throughout this guide where they apply.
If the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment
may be impaired.
WARNING: Failure to heed the following safety precautions can result in injury or death from severe
electrical shock.
General Safety Warnings
„ Do not remove the product covers or panels, or operate the tester without the covers and panels properly
installed. Components on the inside of the tester carry voltage for operation and can render a shock if touched.
„ Use appropriate safety equipment (such as high-voltage gloves, eye protection, and more) as required by your
organization and governing regulatory agencies.
„ The devices covered in this guide are not waterproof or sealed against water entry.
„ The devices covered in this guide are intended for indoor use. If using outdoors, you must protect the device(s)
from rain, snow, and other contaminants.
„ Repairs and repair parts warning: Replacement or repair of parts within the unit should be conducted only by
Megger Baker Instruments authorized service personnel. Opening a unit may void the warranty. Authorized
service personnel will replace defective, damaged or broken test leads with factory-authorized parts to ensure
safe operation and maintain performance specifications.
„ Ground the product: The devices covered in this guide are grounded through the power cord’s grounding
conductor. To avoid electrical shock, plug the power cord into a properly wired/grounded receptacle before
connecting the product test leads.
„ In addition to the power supply cable ground, the power packs have a black ground test lead that serves as the
motor frame return path for testing. They also have a black braided ground lead to provide a sufficiently low
impedance ground path adequate to carry the current flow for the worst case internal ground fault.
WARNING: DANGER FROM LOSS OF GROUND. Upon loss of the protective ground connection, all
accessible conductive parts—including knobs and controls that may appear to be insulated—could cause
electrical shock!
NOTICE: The ground-fault systems on the Baker AWA-IV and Baker DX hosts require a proper ground for the tester
to operate properly in all modes. When the Baker AWA-IV or Baker DX tester is used as a host to a power pack,
improper grounding can also affect operation of the power pack
User Safety and General Operation
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