Care and Maintenance
38
Leica HM500/Ref. 10 715 697/Version B
Care instructions
Leica HM500
• Handle the Leica HM500 with extreme care. Do not expose it
t
o strong vibrations or forces. Exercise great care when
putting the Leica HM500 down on hard surfaces.
Avoid touching the lenses and protective glass of the
Leica HM500.
• The Leica HM500 should only be transported in the flight
cases supplied and using the transportation retainers
(styrofoam parts) supplied.
• Keep the Leica HM500 away from external influences such as
liquids, dust, chemicals, heat or other harmful agents.
• Do not use too much force when pulling out the footswitch
plug and do not bend the cable excessively. Never pull on the
cable; unplug by gripping the plug. We recommend that
unused inputs (such as the charging socket) be closed off.
• The Leica HM500 footswitch and Dental databox of the micro-
scope contain a battery which ensures the greatest self-suffi-
ciency and flexibility possible and avoids the need for bother-
some power cables. To ensure a long service life for the bat-
tery, we recommend a charging level of at least 4 lights after
a relatively long period of storage.
• Depending on the number of charging cycles and the charg-
ing method (partial or full charging or partial or full discharg-
ing) the service life of the battery is naturally limited, and it will
therefore need to be replaced at some stage (see page 44). To
ensure the same high level of quality and safety as before,
only original batteries should be used and they should be
changed by Leica or an authorized partner. Failure to comply
with this will void any warranty or guarantee applicable to the
instrument.
Leica MLS500 light source
• Do not bend the fiber-optic light guide, roll it up tight, knot it
or stretch it. A bent fiber-optic light guide should be replaced.
• Before every use check the fiber-optic light guide for bends
or damage. If bends are detected, straighten out the fiber-
optic light guide.
• Never pull on the fiber-optic light guide, but unplug it by grip-
ping the plug.
Cleaning
Leica HM500
• Avoid touching the lenses and protective glass of the
L
eica HM500 microscope. The Leica HM500 microscope can
be cleaned with the Leica cleaning solution and the Leica
microfiber cloth. Do not immerse the Leica HM500 in any liq-
uids. Do not use aggressive cleaning solutions.
• Make sure the outside lenses are clean so as to prevent any
malfunctions of the autofocus or impairment of visual acuity
due to dirty optical elements. Whether or not the lenses are
clean can be easily determined by a "reflection test". For this
you will need a suitable light source. Take the Leica HM500
and move it to an angle at which light is reflected on the lens.
By slowing changing the position of the Leica HM500, you
can now examine the lens and detected possible dirty spots.
This can, of course, also be done with natural light, but dirt is
easier to detect with artificial light.
• The headset and footswitch can be cleaned with a soft cloth,
moistened if necessary with distilled water or soapy water.
Do not use aggressive cleaning solutions.
• The power pack and flight case can be cleaned with a soft
cloth. Do not use aggressive cleaning solutions.
• For disinfection, a cloth moistened with Bacillol can be used.
You can also use surface disinfectants used in the operating
room, provided they are identical with the components of
Bacillol. Do not use any other disinfectants.
• When cleaning or disinfecting, make sure the footswitch is
switched off and the power pack has been disconnected
from the power supply!
• Since the Leica HM500 is not explosion-proof, do not use it
immediately after cleaning or disinfecting.
• Do not handle or use disinfectants or cleaning agents if a
Leica HM500 is being used nearby.
• Never pour or spray liquid directly onto the Leica HM500, but
always moisten a soft cloth. Do not immerse the Leica HM500
in any liquid.
• Do not sterilize or autoclave the Leica HM500!
The specified IPX1 or IPX8 protection class for the
electrical switching elements applies when the
instrument is plugged in. For this reason the scope of
supply includes a terminating resistor connector for
the service interface (page 6 (38) and page 7 (54))
of the Leica HM500 footswitch.
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