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GENERAL INFORMATION ON USAGE AND MAINTENANCE
GENERAL INFORMATION ON USAGE AND MAINTE-
NANCE
PURPOSE OF USE/EFFICACY OR EFFECT
This instrument displays the visual acuity chart data outputted by the following two units and is used as
the visual acuity chart in the visual function test.
• CV POWER SUPPLY UNIT WITH BUILT-IN PERSONAL COMPUTER, which is a component of the
Compu-Vision CV-5000
• The external personal computer connected to CV POWER SUPPLY UNIT
ENVIRONMENTAL CONDITIONS FOR USE
Temperature : 10°C - 40°C
Humidity : 30% - 90% (non-condensing)
Air pressure : 700hPa - 1060hPa
STORING METHOD, USAGE PERIOD AND OTHERS
1. Storage (without wrapping (without package))
* Temperature: 10°C - 40°C
Humidity: 10% - 95% (without dew condensation)
Air pressure: 700hPa - 1060hPa
* THIS INSTRUMENT DOES NOT MEET THE TEMPERATURE REQUIREMENTS OF ISO 15004-
1 FOR STORAGE. DO NOT STORE THIS INSTRUMENT IN CONDITIONS WHERE THE TEM-
PERATURE MAY RISE ABOVE 40°C OR FALL BELOW 10°C.
2. Storage (with wrapping (with package))
Temperature: -20°C - 50°C
Humidity: 10% - 95%
3. Transportation (with wrapping (with package))
Temperature: -40°C - 70°C
Humidity: 10% - 95%
4. When storing the instrument, ensure that the following conditions are met:
(1) The instrument should not be splashed with water.
(2) Store the instrument away from an environment where air pressure, temperature, humidity, ven-
tilation, sunlight, dust, salty/sulfurous air, etc. could cause damage.
(3) Do not store or transport the instrument on a slope or uneven surface or in an area where it is
subject to vibrations or instability.
(4) Do not store the instrument where chemicals are stored or gas is generated.
5. Usage period
8 years from delivery providing regular maintenance is performed (according to the self-certification
[Topcon data])
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