Model ATRT-03 (v) Operating Instruction
1
NOTICE
This manual applies to models ATRT-03, ATRT-03A and the ATRT-03B. The operating
procedures are virtually the same for all models; any differences, which relate to the test unit’s
power sources, are clearly described within the step-by-step procedures.
SAFETY WARNINGS AND CAUTIONS
This device shall be used only by trained operators.
All transformers under test shall be off line and fully isolated.
Do Not Service or Test Alone
Do not perform test procedures or service unless another person is also present who is capable of
rendering aid and resuscitation.
Do Not Modify Test Equipment
Due to the added risk of introducing additional or unknown hazards, do not install substitute parts
or perform any unauthorized modification to any model ATRT-03 test unit. To ensure that all
designed safety features are maintained, it is recommended that repairs be performed only by
Vanguard Instruments Co. factory personnel or by an authorized repair service. Unauthorized
modifications can cause serious safety hazards and will nullify the manufacturer's warranty.
Follow Exact Operating Procedures
Any deviation from procedures described in this operator’s manual may create one or more safety
hazards, damage the ATRT-03 or the test transformer, or cause errors in the test results. Vanguard
Instruments Co., Inc. assumes no liability for unsafe or improper use of the ATRT-03.
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