PRK-5000 Operation Manual
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2. Notes for Using the Instrument
(1) Do not hit or drop the instrument. The instrument may be damaged if it receives a
strong impact. The impact can damage the function of this instrument. Handle with care.
(2) Exposure to the direct sunlight or too bright indoor lights can influence on the result of
accurate measurement.
(3) If you want to connect this with other equipments, consult the dealer.
(4) Sudden heating of the room in cold areas will cause condensation on the protective
glass in the measurement window and on optical parts inside the instrument. In this
case, wait until condensation disappears before performing measurement.
(5) Keep clean the objective glass of the examinee side. If it is stained with other substance,
it may effect on error or inaccurate measurements.
(6) Disconnect the power supply and consult the dealer in case there is smoke, strange
odor or noise on working.
(7) Don’t use organic solution such as alcohol, thinner, benzene, etc. to clean the surface of
this instrument. It may damage the instrument.
(8) When moving this PRK-5000, fix the stage by using clamping bolt and stage holding
knob, always check if the power supply is off, and then lift the bottom of the unit with
both hands.
(9) If you leave PRK-5000 without using for certain period, disconnect the power supply
and protect the unit with dust cover.
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