Revised 23 June 2000
Pag 3
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Minimum distances from
inflammable surfaces
0,3 m.
0,1 m.
0,1 m.
2,0 m.
The luminaire should never be OPERATED close to inflammable materials. The ones indicated in the above
table are the minimum distances recommended.
Other requirements for safe use are:
A. Do not cover the apertures of the luminaire housing. They are essential for correct ventilation. Do not use on
the floor. It reduces the ventilation.
B. Use only original accessories and spares from De Sisti Lighting.
C. Before hanging the luminaire ensure that the suspension point (or the stand) is properly rated to accept the
luminaire weight.
D. A suitable secondary safety suspension device (safety cable, chain or equivalent) must be fitted between
the suspension point and the eyelet at the front of the body .
WARNING :
DO NOT MOUNT THE LUMINAIRE ON A NORMALLY FLAMMABLE SURFACE .
WARNING : UV RISK .
The lamps usable on the luminaire emit an amount of UV RADIATION very dangerous
for human health if not properly shielded .
For this reason the luminaire MUST NEVER BE USED IN THE SITUATIONS WHEN DIRECT LIGHT
EMISSION FROM THE LAMP CAN OCCURR ( ex : Damaged or no front lens , no mirror , damaged internal
baffles , additional aperture on the housing )
4. INSTALLATION INSTRUCTIONS
Before connecting the luminaire
to the ballast ensure that:
A – The ballast is compatible with the luminaire .
B - The ballast is suitable for the electrical mains ( Voltage & Frequency ) .
C – The ballast is properly earthed ( use the ground continuity test present on De Sisti ballast ) and the
ballast main switch is in OFF position .
D - The lamp fitted :
Ü
is among the usable lamps ( see point 6 or check with your De Sisti dealer )
Ü
( for magnetic ballast ) has the nominal power equal to the ballast.
Ü
(for De Sisti Electronic Ballast , single or dual power ) has nominal power not higher than the Max
of the ballast .
E – The front safety shields against the lamp explosion are present and in good condition.
They consist of a fresnel lens plus wire guard . The fresnel lens is made of borosilicate untoughened
glass D= 150 mm , thickness 5 mm typ ( 3 mm min ) , compliant to DIN 15560 . The wire guard is a
mesh 25 mm x 25 mm( or smaller ) , wire D=0,8 mm typ , made by nickel coated or stainless steel .
After connection to the ballast
, follow the ballast instruction to operate on the system .
WARNING :
SHIELDS, LENSES SAFETY OR DICHROIC GLASSES SHALL BE CHANGED IF THEY HAVE
BECOME VISIBLY DAMAGED TO SUCH AN EXTENT THAT THEIR EFFECTIVENESS IS IMPAIRED, FOR
EXAMPLE BY CRACKS OR DEEP SCRATCHES.
THE LUMINAIRE SHALL ONLY BE USED COMPLETE WITH ITS PROTECTIVE SHIELD .
5. LAMP INSTALLATION AND REPLACEMENT
The following procedure should be adopted:
A - Ensure the luminaire is electrically isolated from the power supply.
B -WAIT AT LEAST 5 MINUTES FROM SWITCHING OFF to avoid risk of injury from possible lamp explosion.
Then open lens door .
WARNING:
AFTER THE ABOVE MENTIONED TIME THE LAMP MAY STILL BE VERY HOT, USE
PROPER THERMAL PROTECTION (EG. GLOVES).
C - Check that the new lamp is of the correct type.
SEE WARNING FOR INSTALLATION ( ITEM 4 – D ) .
D - Replace the lamp taking good note of the following:
•
do not touch the bulb with bare-hands; oil and grease can contaminate the bulb surface and then reduce
the performance and the lamp life.
•
the plastic cover which protects the lamp should not be removed until after fitting.
•
should the bulb become dirty due to hand contact or for any other reason, it can be cleaned with a cloth
moistened with alcohol.
•
instructions by lamp manufacturers must be followed .
E - Ensure that the lens door is securely closed.
