Preparation Before Surgery
16
Leica HM500/Ref. 10 715 697/Version B
Carrying out white balancing
Basically the camera has been designed for the normal
lighting conditions of an operating room. However, if
color problems occur you can carry out white balanc-
ing yourself.
Never carry out white balancing when the instrument
is being used, but always before!
Do not carry out white balancing until the lamp has
been switched on for 5 minutes and has reached its
optimum operating state.
➩
Using the Leica HM500 footswitch, zoom to the maximum
position (Tele)
➩
Focus the camera on a flat white object.
➩
Hold the "Camera on" button (35) of the footswitch down (for
about 10 sec.) or hold down the "Camera on" button (49) of the
Dental databox until an acoustic signal is heard.
This activates white balancing.
➩
Keep the button held down for 5 sec. or so until a slight fall in
brightness is noticed in the camera image.
➩
Release the button and remove the white object.
This completes white balancing.
Keep focusing on the flat white object throughout the
process.
Connecting the optional MDRS
➩
Plug the video cable (87) into the socket (39) of the footswitch
and into the video input (S video) of the Leica MDRS.
or
➩
Plug the video cable (87) into the socket (53) of the Dental
databox (blue color code) and into the video input (S video) of
the Leica MDRS.
See also the MDRS user manual.
Only use peripheral devices of electrical protection
class II (shown by the symbol
) for the SVHS output
(camera option).
Do not touch the SVHS plug (when it is plugged in) and
the patient at the same time.
Use only medical peripheral devices (such as monitors,
video printers, video recorders, and so on) which sat-
isfy the requirements of the current edition of the
standards EN/IEC/UL 60601-1 (and also any parts
EN/IEC/UL 60601-2-xx which may be applicable. These
peripheral devices may only be used outside the
patient environment. Carefully read the user instruc-
tions and warning notes of the peripheral devices. The
relevant national medical standards must be observed.
1
2
3
4
S video
MDRS
