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You can prolong the life of your bulb if you:
̈ First switch off the lamp by turning the
rotary knob into the black range
̈ and only then switch the transformer
on or off.
̈ Turn on the power switch.
The diode is illuminated.
̈ Use the rotary knob to adjust the
brightness.
Above 6 V the diode is illuminated.
Fuses 1.0A, 5×20 (stock no. 167 651)
̈ Lamp off.
̈ Power switch off.
̈ Use a flat-bladed screwdriver to press on
the slots in the fuse holders (3) and turn
the fuse holders to the left.
Pull out the fuse holder.
̈ Fit a new fuse and replace the fuse
holder.
̈ Lamp off.
̈ Power switch off.
̈ Wait a few seconds.
̈ Power switch on.
̈ Lamp on.
Step transformer
Follow the safety instructions given on page 7.
• You can attach a 6 V/10 W lamp to the
step transformer.
̈ Set the voltage selector on the rear
side to 115 V or 230 V.
̈ Attach the power cable to the power
supply.
̈ Connect the lamp.
̈ Adjust the brightness with the three-step switch (4/5/6 V).
Switching
on and off
Changing fuses
In the event of
overload
39
Leica M Stereomicroscopes – Illuminations