Care and Cleaning
Humphrey Field Analyzer II-
i
series User Manual 2660021145640 A
15-2
General Use Principles
• The HFA II-
i
is designed for continuous operation. However, it should be turned off when not
used for an extended period of time and covered with the dust cover.
• Avoid turning the instrument on and off repeatedly
during the day to preserve the life of the
bowl lamps.
• The HFA II-
i
should be used in a cool, dry and dust-free setting.
• Do NOT connect or disconnect cables while power is on.
• Do NOT place any container holding liquid near the instrument.
• Do NOT place objects on top of the instrument.
• Carl Zeiss Meditec recommends routine yearly service and main
tenance on the HFA II-
i
by a
qualified Carl Zeiss Meditec Field Service Engineer.
Cleaning the HFA II-
i
Your HFA II-
i
should be kept clean and maintained for proper operation. Use the methods and
cleaners in Table 15.1 below to clean the indicated surfaces. Clean as often as
is necessary.
Tab l e 15.1 How to Clean the HFA II-i
Surface Cleaner Method
Exterior Panels Mild detergent or appliance
cleaner or glass cleaner
containing no ammonia.
Dampen a soft cloth with cleaner and
gently wipe the surfaces. Never spray
the cleaner directly on the exterior
surfaces.
Bowl
(Please review the two
cautionary Notes that
follow this table)
Dust cloth
Distilled water
70% Isopropyl alcohol in H
2
O
(Rubbing alcohol)
Remove accumulated dust from the
bowl periodically. Wipe the bowl gently
with a clean, dry, soft cotton cloth. Use
downward strokes that move the dust
toward the front edge of the bottom of
the bowl, where there is a small
opening around the base of the lens
holder.
If dusting the bowl is inadequate,
slightly moisten the cloth
with distilled
water. Whether using a dry or a
dampened cloth, always avoid
excessive rubbing in one area, as this
can create shiny spots or wear through
the specially painted surface of the
bowl.
For small spots on the bowl surface
caused by sneezing or coughing during
a test, slightly dampen a cotton-tipped
applicator with isopropyl alcohol and
gently remove the spot. It is best to wet
the spot with the tip of the dampened
swab first and let it soak briefly. Then,
use the swab very gently to remove the
deposit.
Touch Screen Mild glass cleaner containing
no ammonia.
Turn OFF the HFA before cleaning the
touch screen. Wipe gently with a
moistened cloth. Do not spray cleaner
directly on the touch screen.
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