S. 4
Edition I / May 2012
opEratIng InStructIonS DEB1200D anD DLH1200D
The lamp is driven with a square wave AC voltage of approximately
75 cycles
in
flickerfree mode. Lamp output is regulated according to preadjusted value
independent of mains and lamp voltage. Lamp amperage is regulated, further
contributing to flawless operation.
The power electronics are monitored by a temperature control circuit. Should cooling
be insufficient or in case of fan failure, the electronic ballast will switch the lamp off.
The ignitor is placed in a housing beside the lighting fixture and generates the
ignition voltage necessary to start the lamp.
Push buttons on the ignitor housing and/or identical push buttons on the electronic
ballast allow the start and stop of operation on the ballast or on the fixture.
Independent from the settings on the electronic ballast, the focusing knob on the
light fixture allows the variation of the beam angle in an extremely wide range. Using
a patented two lens system in combination with a 2-step movement of the mirror
and lenses, it is possible to achieve a focusing range unprecedented in other com-
pact light heads.
The finely tuned optical system offers an extremely clean beam - with practically no
stray light - improved light distribution in spot and flood and any position in between.
The adjustability of the beam has been enhanced by a super spot position.
The holders on the front ring of the fixture accept accessories such as the barndoor,
filter holder or projection attachment which are secured by a latch on the top left
side of the fixture.
A handle on the rear side of the fixture, which can be unfolded for operation or
folded for transport, allows for easy pan and tilt motions of the light head.
A metal noose on the right side of the light head can accept a suitable safety cable
or safety chain to connect the light head with its point of fixation when operated in a
hanging mode. If needed, the same noose can be used for a safety cable to secure
the barndoor.
3)
SAFETY PRECAUTIONS
The DLH1200D daylight light head cannot be operated without the DEB1200D elec-
tronic ballast. The connecting cable (DPOW1200D) must be used between the elec-
tronic ballast and the light fixture.
Maximum tilt angle is +/- 90°.
Upside down operation of the light head is not allowed and will damage the
ignitor.
A)
CAUTION: MAINS VOLTAGE!
This system is built according to Safety Class 1 which requires a grounded 3-pin
connection (L, N, PE). Before connecting the ballast to the mains, be sure the outlet
meets safety regulations. If the ground connection carries any voltage, the outlet
should not be used under any circumstance. If the ground connection is missing, a
suitable grounded outlet must be found.
Care should be taken to ensure that the mains connector and mains cable are of a
