User`s manual

7800 Series Hysteresisgraph System User's Manual
1-4 Introduction
Safety Summary (Continued)
Ground The Instrument. To minimize shock hazard, connect the instrument chassis and cabinet to an electrical
ground. The instrument is equipped with a three-conductor AC power cable. Plug the power cable into an
approved three-contact electrical outlet or use a three-contact adapter with the grounding wire (green) firmly
connected to an electrical ground (safety ground) at the power outlet. The power jack and mating plug of the
power cable meet Underwriters Laboratories (UL) and International Electrotechnical Commission (IEC) safety
standards.
Ventilation. The instrument has ventilation holes in its top and bottom covers. Do not block these holes when the
instrument is turned on.
Do Not Operate In An Explosive Atmosphere. Do not operate the instrument in the presence of flammable gases
or fumes. Operation of any electrical instrument in such an environment constitutes a definite safety hazard.
Keep Away From Live Circuits. Operating personnel must not remove instrument covers. Refer component
replacement and internal adjustments to qualified maintenance personnel. Do not replace components with power
cable connected. To avoid injuries, always disconnect power and discharge circuits before touching them.
Do Not Substitute Parts Or Modify Instrument. Do not install substitute parts or perform any unauthorized
modification to the instrument. Return the instrument to an authorized Lake Shore Cryotronics, Inc. representative
for service and repair to ensure that safety features are maintained.
Cleaning. Do not submerge instrument. Clean only exterior with a damp cloth and mild detergent.
1.5 SAFETY SYMBOLS