Topcon TRC-50DX, Инструкция по эксплуатации

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The retinal exposure dose for a photochemical hazard is a product of the radiance and the expo-
sure time. If the value of radiance were reduced in half, twice the time would be needed to reach
the maximum exposure limit.
While no acute optical radiation hazards have been identified for fundus cameras, it is recom-
mended that the intensity of light directed into the patient's eye be limited to the minimum level
which is necessary for diagnosis. Infants, aphakes and persons with diseased eyes will be at
greater risk. The risk may also be increased if the person being examined has had any exposure
with the same instrument or any other ophthalmic instrument using a visible light source during the
previous 24 hours. This will apply particularly if the eye has been exposed to retinal photography."
"Caution: Federal laws restricts this device to the sale by or on the order of a physician."
ENVIRONMENTAL CONDITIONS FOR USE
Temperature: 10°C ~ 40°C
Humidity: 30% ~ 75% (Non-condensing)
Air pressure: 700hPa ~ 1060hPa
STORAGE, USAGE PERIOD AND OTHERS
1. Environmental conditions (without package)
Temperature: 10°C ~ 40°C
Humidity: 30% ~ 75% (Non-condensing)
Air pressure: 700hPa ~ 1060hPa
2. When storing the instrument, ensure that the following conditions are met:
(1) The instrument must not be splashed with water.
(2) Store the instrument away from environments where air pressure, temperature, humid-
ity, ventilation, sunlight, dust, salty/sulfurous air, etc. could cause damage.
(3) Do not store or transport the instrument on a slanted 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.
3. Normal life span of the instrument:
8 years from delivery providing regular maintenance is performed [TOPCON data]
ENVIRONMENTAL CONDITIONS FOR PACKAGING IN TRANSPORTATION
Temperature: -20°C ~ 50°C
Humidity: 10% ~ 95%
CHECKPOINTS FOR MAINTENANCE
1. Periodically inspect the instrument and its parts.
2. Before using the instrument after a long period of inactivity, make sure that it operates
safely and normally.
3. Be careful not to stain the objective lens with fingerprints, dirt, etc., as this will affect the
coatings and quality of pictures that the instrument takes.
4. When the instrument is not in use, cap the objective lens and cover the instrument with the
dust cover.
5. If the objective lens is stained, clean it according to "CLEANING THE OBJECTIVE LENS"
on page 58 of this manual.