OMICRON 7
Safety instructions
1.3 Operating the measurement setup
► Switch off the high voltage.
► Always obey the five safety rules and obey the following safety instructions.
► Always obey the internal safety instructions for working in areas with high voltage to avoid injury.
► Before operating the MPD 800 acquisition unit and its accessories, ground the setup as described in
1.2.2 "Safety rules" on page 6.
► Make sure to clear the high-voltage area.
► Observe the dangerous areas.
► Before switching on the high voltage, leave the high-voltage area.
► Make sure that the ground terminal of the test object is in good condition, clean, and free of oxidation.
► Do not connect any cable to the test object without a visible grounding of the test object.
► Always position the MPD 800 acquisition unit, the external quadripole (CPL1/CPL2) and the
rechargeable battery pack (RBP1) inside of the high-voltage area.
► Always operate and place the Multi-device Control Unit (MCU2) and the PC in the work area.
► Install the GPS antenna and its cabling in accordance with all national and local electrical codes,
regulations, and practices.
► Install the antenna and cabling where they will not be energized by falling high-voltage power lines
and cannot be damaged by over-voltage transients, particularly lightning. Additional protective
measures are required for such installations, as specified in national and local electrical codes.
► Never use the external power supply when the MPD 800 acquisition unit is operated at high-voltage
potential.
► Never remove or attach any cables from the MPD 800 acquisition unit and its accessories or the test
object during a test.
► Before operating the MPD 800 system in permanent installations with the OMICRON standard power
supply, be aware that a flashover or breakdown might invisibly damage the OMICRON 24 W DC
supply. Read the corresponding "Application Note" which can be found in the knowledge library within
OMICRON Customer Portal.
► Do not use inadequately rated supply cords.
► Do not insert objects (for example, screwdrivers) into any input/output socket.
► Do not operate the MPD 800 acquisition unit or its accessories under ambient conditions that exceed
the temperature and humidity limits listed in 3 "Technical specifications" on page 52.
► Check your additional equipment (for example, PC) for environmental conditions before use.
► Always use dry and clean fiber-optic cables which are provided by OMICRON electronics. In dusty
regions, use protective caps. Make sure that the cables have ground contact to avoid leakage
current.
► Do not use metal coated/jacketed conductive fiber-optic cables. Store the fiber-optic cables in a dry
area.
► Do not operate the MPD 800 acquisition unit and its accessories in the presence of explosives, gas
or vapors.
► Do not open the MPD 800 acquisition unit or its accessories housing.
► Do not repair, modify, extend, or adapt the MPD 800 acquisition unit or its accessories.
► Use only the MPD 800 acquisition unit original accessories available from OMICRON.
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