iET PRS-300 Series, Operation Manual, Page: 7 / 50

SAFETY SUMMARY
The following general safety precautions must be observed during all phases of operation, service,
and repair of this instrument. Failure to comply with these precautions or with speci
fi c WARNINGS
elsewhere in this manual may impair the protection provided by the equipment. Such noncompliance
would also violate safety standards of design, manufacture, and intended use of the instrument.
IET Labs assumes no liability for the customer’s failure to comply with these precautions.
The PRS-300 complies with INSTALLATION CATEGORY I as well as POLLUTION DEGREE 2
in IEC61010-1.
If an instrument is marked CAT I (IEC Measurement Category I), or it is not marked with a
measurement category, its measurement terminals must not be connected to line-voltage mains.
The PRS-300 is an indoor use product.
DANGEROUS PROCEDURE WARNINGS
Comply with all WARNINGS - Procedures throughout in this manual prevent you from potential
hazard. These instructions contained in the warnings must be followed.
BEFORE APPLYING POWER
Verify that all safety precautions are taken. Make all connections to the instrument before applying
power. Note the instrument’s external markings described under “Safety Symbols”.
GROUND THE INSTRUMENT
This is a Safety Class I instrument. To minimize shock hazard, the instrument chassis and cabinet
must be connected to an electrical ground. The power terminal and the power cable must meet
International Electrotechnical Commission (IEC) safety standards.
CAUTION
• DO NOT Operate in an Explosive Atmosphere
• Do not operate the instrument in the presence of in
fl ammable gasses or fumes
• Operation of any electrical instrument in such an environment clearly constitutes a safety
hazard
• Use Caution around live circuits
• Operators must not remove instrument covers
• Component replacement and internal adjustments must be made by quali
fi ed maintenance
personnel only
• DO NOT substitute parts or modify the instrument
To avoid the danger of introducing additional hazards, do not install substitute parts or perform
unauthorized modi
fi cations to the instrument.
Return the instrument to an IET Labs for service and repair to ensure that safety features are maintained
in operational condition.