SCHOTT KL 2500 LCD Conseils D'utilisation page 19

3 Replacing the lamp
Please ensure that the lamp and lamp-
holder have cooled down before
replacement. The corresponding
warning symbol is attached to remind
you.
First of all switch off the light source.
Open the lamp compartment (10) by
pressing the button (11) and pull it out
as far as the stop.
Press down the two levers of the speci-
al socket and pull out the faulty lamp.
The two levers must be pressed down
again while inserting the new lamp.
Push the lamp compartment in until
it latches (audible locking sound).
Switch the light source on.
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4 Maintenance
Your KL 2500 LCD is maintenance-free.
There is no provision necessary for
disinfecting the light source when
using it in the medical field.
To clean the outside of the instrument,
use a soft dry cloth or commercially
available plastic cleaning cloths.
Fault
Lamp out,
fan not running,
no LCD display
Lamp out,
fan running,
fault status indication
„Err 1"
Lamp out,
fan running,
fault status indication
„Err 2"
Lamp out,
fan running,
fault status indication
„Err 3"
If you are unable to rectify the fault by the actions mentioned above, please contact
your specialist dealer or the nearest Schott agency. More extensive repairs must
be carried out by the authorised customer service depot.
5 Troubleshooting
The display has a fault status indicator
(19). Any possible breakdowns can be
recognized quickly and easily.
„Err 1": Lamp circuit interrupted.
„Err 2": Temperature monitor has
„Err 3": Short-circuit in the lamp
Possible causes
Instrument not switched on.
Plug not in socket.
No mains electricity voltage.
Lamp compartment not closed.
Fuse faulty.
Transformer overheated.
Remote control or
inclination angle switch faulty.
Lamp defective.
No lamp.
Insufficient cooling.
Transient current increase
in lamp circuit.
Lamp causing short-circuit.
triggered.
circuit, electronic fuse has
triggered.
Remedial action
Switch instrument on.
Plug the plug in.
Check mains voltage.
Close lamp compartment.
Replace fuse (16).
Ensure adequate cooling, check
that lamp type is correct, re-start
instrument after cooling down for
a prolonged time.
With instrument switched
off, disconnect accessories
Replace lamp (see point 3
of these instructions).
With light source switched
off, install lamp.
Ensure ventilation apertures are
free, avoid excessive ambient
temperatures, the instrument will
switch back on again after a
short time.
Switch instrument off and, after
a few seconds, back on again.
Replace lamp (see point 3
of these instructions).
GB
18