8 Operation
Instruction Manual SDI® 4 (G/54320/EN 0220 Rev01)
13 / 24
8
Operation
8.1
Prior to each Use
Before each use, check that
the unit is in technically perfect condition
all connections and fasteners that can be loosened are properly
tightened and are in a safe condition
all cables and plugs are free of damage
the unit is connected to a proper power supply (SDI® 4c and SDI® 4e).
All electric functions are operational:
- SDI® 4 on/off (SDI® 4e and 4c)
- BIOM®-focussing up, BIOM®-focussing down (SDI® 4c)
the rubber covering for the adjustment button of the SDI® 4c is
supplied and sterile.
Adjust the binocular tube to as comfortable a position as possible.
8.2
Practical Tips for Use
To adjust the optical system of the SDI® 4: Briefly press the foot
switch. The optic system then moves to its other position.
Always activate the SDI® 4 if you are using optical inversion, e.g.
BIOM® or an indirect vitrectomy lens.
When the unit is activated, the indicator lamp at the SDI® 4c and
SDI® 4e lights up. The indicator remains empty on the SDI® 4m.
If you are using non-inverting optics, usch as e.g. a Kilp contact lens,
or if you have swung out the BIOM®, you must deactivate the
inverting optics of the SDI® 4. The indicator light of the SDI® 4c and
SDI® 4e is not illuminated in this case, and is yellow on the SDI® 4m
and shows “0“.
