Documentation History
All Editions and Updates of this manual and their creation date are listed below. The first Edition of the manual is Edition 1. The Edi- tion number increments by 1 whenever the manual is revised. Updates, which are issued between Editions, contain replacement pages to correct or add additional information to the current Edition of the manual. Whenever a new Edition is created, it will contain all of the Update information for the previous Edition. Each new Edition or Update also includes a revised copy of this documentation his- tory page.
Edition 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . September 1989
Edition 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . March 1993
Edition 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . December 1995
Safety Symbols
Instruction manual symbol affixed to prod- uct. Indicates that the user must refer to the manual for specific WARNING or CAU- TION information to avoid personal injury or damage to the product.
Indicates the field wiring terminal that must |
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be connected to earth ground before operat- |
|
ing the | WARNING |
cal shock in case of fault. |
| Frame or chassis ground | CAUTION |
or | cally connects to the equipment’s metal |
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frame. |
| |
|
|
Alternating current (AC).
Direct current (DC).
Indicates hazardous voltages.
Calls attention to a procedure, practice, or condition that could cause bodily injury or death.
Calls attention to a procedure, practice, or con- dition that could possibly cause damage to equipment or permanent loss of data.
WARNINGS
The following general safety precautions must be observed during all phases of operation, service, and repair of this product. Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design, manufacture, and intended use of the product.
Ground the equipment: For Safety Class 1 equipment (equipment having a protective earth terminal), an uninterruptible safety earth ground must be provided from the mains power source to the product input wiring terminals or supplied power cable.
DO NOT operate the product in an explosive atmosphere or in the presence of flammable gases or fumes.
For continued protection against fire, replace the line fuse(s) only with fuse(s) of the same voltage and current rating and type. DO NOT use repaired fuses or
Keep away from live circuits: Operating personnel must not remove equipment covers or shields. Procedures involving the removal of covers or shields are for use by
DO NOT operate damaged equipment: Whenever it is possible that the safety protection features built into this product have been im- paired, either through physical damage, excessive moisture, or any other reason, REMOVE POWER and do not use the product until safe operation can be verified by
DO NOT service or adjust alone: Do not attempt internal service or adjustment unless another person, capable of rendering first aid and resuscitation, is present.
DO NOT substitute parts or modify equipment: Because of the danger of introducing additional hazards, do not install substitute parts or perform any unauthorized modification to the product. Return the product to a