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8.4 Cleaning the ring switch
A non-contacting ring switch is used to switch on the Lite-
Ex
®
PL 10 H (see 8.2). Dirt and moisture do not impair the
switching function. The ring switch is easy to clean if excessi-
ve amounts of dirt and grime have made it difficult to turn.
Start by unscrewing the lamp head. The ring switch can
now be removed and cleaned. When it has been cleaned,
replace the ring switch and rotate it until it engages firmly in
place (the line marking on the ring switch must be located
opposite the circular marking on the lamp body). The lamp
head can then be screwed back onto the lamp.
8.5 Bulb replacement
The Lite-Ex
®
PL 10 H is equipped with a long-life LED bulb.
Under normal conditions it is not necessary to change the
LED. If, however, the lamp becomes defective or its bright-
ness has diminished, it should be sent to ecom instruments
for inspection or repair. The LED housing should not be
opened! Conducting repairs to the LED housing or bulb
yourself poses a risk to the safety of the lamp and is not
permitted.
8.6 Replacing the protective disc
The LED housing is protected by the surrounding housing
head and an additional protective disc, which is located over
the opening where the beam is emitted. The disc is made
of high-quality material. If, however, it should break, it can be
replaced. To do this, grasp the body of the Lite-Ex
®
PL 10
H and the ring switch and then carefully unscrew the lamp
head by turning it anti-clockwise. To unscrew the lamp head
from the LED housing use an Allen key (A/F 4) to secure
the LED housing in place (see Fig. 3) and unscrew the
lamp head. The protective disc can now be replaced (only
use original protective discs from ecom). The LED housing
should then be cleaned thoroughly and the sealing ring
checked for signs of damage. If the sealing ring exhibits any
damage, it should also be replaced (the sealing ring is set in
