12
3. Safety Notes
Caution!
The microscope’s electrical accessory com-
ponents are not protected against water. Wa-
ter can cause electric shock.
Caution!
Protect the microscope from excessive tem-
perature fl uctuations. Such fl uctuations can
lead to the accumulation of condensation,
which can damage the electrical and optical
components.
Ambient temperature: 15–35°C.
Caution!
Before exchanging the fuses or lamps, be ab-
solutely certain to switch off the main power
switch and remove the power cable.
Caution!
Per defi nition, the connection between
power supply cable and appliance inlet is
the power separator of this device. Thus, the
user is responsible for suffi cient clearance
and accessibility of this area at all times.
Caution!
Do not use the microscope in altitudes ex-
ceeding 2000 m ASL/NL.
Caution!
Power plugs may only be plugged into an out-
let equipped with a grounding contact.
Do not interfere with the grounding function
by using an extension cord without a ground
wire. Any interruption of the ground wire in-
side or outside of the device, or release of
the ground wire connection, can cause the
device to become hazardous. Intentional
ground interruption is not permitted!
Caution!
Peripheral devices with their own or sepa-
rate power supplies that are connected to
the microscope can have the same protec-
tive conductor potential by connecting them
to the ground screw on the back of the Leica
CTR4000, CTR6000, CTR6500 and CTR7000
electronics boxes. For connections without
a ground connector, Leica Service must be
consulted.
Caution!
Never use any fuses as replacements other
than those of the types and the current rat-
ings listed here. Using patched fuses or
bridging the fuse holder is not permitted. The
use of incorrect fuses may result in a fi re haz-
ard.
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