Teradyne Z1800 Series, Руководство оператора

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C
HAPTER
1 S
AFETY
The Z1800-Series test systems have been carefully designed for long-term safe and reliable
operation in a manufacturing environment. However, in-circuit testing requires that these
testers use and distribute high power and high voltage, both AC and DC. As a consequence,
if you do not follow proper tester operation procedures, the testers can cause serious
personal injury and equipment damage.
This chapter identifies tester hazards that operators may encounter. Read this chapter
before performing any operations on the tester.
Follow the precautions in this chapter during all stages of tester operation. Teradyne does
not assume liability for a customer’s failure to comply with established procedures.
Teradyne’s Product
Safety Policy •
Teradyne equipment is designed and manufactured to be functionally safe for persons
who operate or service it. Potential hazards are addressed through a combination of
careful system design, appropriate warning labels, and documentation.
•
Teradyne equipment design reflects the Teradyne Product Safety Standards. These
standards incorporate applicable electrical codes and safety regulations. When codes
and regulations do not directly apply to automatic test equipment, the Teradyne Product
Safety Standards adhere to the spirit and purpose of these publications.
•
If specific questions arise about product safety or local requirements, Teradyne is
prepared to address these issues with any customer.
General Safety
Information
The tester is a “Safety Class 1” apparatus using a protective grounding scheme provided
from the protective ground wire of the “AC Mains” power cable.
WARNING! Any interruption of the protective conductor inside or outside the apparatus or
disconnection of the protective earth terminal could possibly make the apparatus
dangerous. Intentional interruption is prohibited.
This apparatus has been designed and tested in accordance with IEC Publication 348,
Safety Requirements for Electronic Measuring Apparatus , and has been supplied in a
safe condition. The present instruction manual contains some information and warnings
which have to be followed by the user to ensure safe operation and to retain the apparatus
in safe condition.
The apparatus has been designed for indoor use. It may occasionally be subjected to
temperatures between -5
°
C and -10
°
C without degradation of its safety.
When the apparatus is connected to its power supply, terminals may be live, and the
opening of covers or removal of parts (except those to which access can be gained by hand)
is likely to expose live parts. The apparatus shall be disconnected from all voltage sources
before it is opened for any adjustment, replacement, maintenance, or repair.
Capacitors inside the apparatus may still be charged even if the apparatus has been
disconnected from all voltage sources.