iET PRS-330 series, Operation Manual, Page: 7 / 67

SAFETY PRECAUTIONS CONTINUED
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 and whenever hazardous voltages > 45 V are present
• 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
• When working with high voltages; post warning signs, train personnel and keep unauthorized personnel
away.
Do not apply any voltage or currents to the terminals of the instrument in excess of the maximum limits
indicated in the speci
fi cations section of this manual.
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.