Fiera
575 EB
has several internal automatic functions which may not be noticed in the first instance but which, nonetheless,
may assist the operator in making best use of the projector.
lamp on timer
This internal system in the electronic ballast governs the start up process so that if a prolonged unsuccessful attempt (over 20
seconds) is made to strike the lamp, the device will then automatically attempt to strike the lamp for 20 seconds once every
minute for the following 8 minutes. After this the lamp circuit is disabled (assumes a failed lamp).
This device protects the transformer and ignitor.
NOTE: it is then necessary to remove the fixture from mains power and replace the lamp.
temperature controlled cooling fans
A thermal sensor in the body of the
Fiera
575 EB
constantly monitors the internal temperature of the fixture to ensure that it
remains at an optimal level.
The electronic circuitry of the
Fiera
575 EB
is designed to compensate for a rise in the internal temperature of the unit by
increasing the cooling fan speed.
In this manner, the internal components of the fixture are maintained in an optimal temperature range and the fans are opera-
ting at the minimal speed required, thus minimising any noise.
NOTE:
If you wish to maintain the fans at the maximum operating speed,
you may do this via the display function
(function
FAN ON
) or directly by keeping DMX channel 8 at a level between 171 and 249.
automatic return to position
An encoder system based on 4 position indicators allows the
Fiera
575 EB
to return to its correct position if it is
accidentally moved during operation.
This is particularly useful if the projector is to be mounted on the floor in a position where the performer or artist may
accidentally bump the unit
NOTE:
this device may be deactivated (see section 11 Display panel functions -
OPTO OFF
).
Whilst every possible precaution has been taken to ensure the trouble-free operation of your
Fiera
575 EB
,
the fol-
lowing periodic maintenance is highly recommended. Prior to undertaking any maintenance procedure, make sure
the fixture is disconnected from mains power.
Periodic cleaning
Lenses and reflectors
Even a fine layer of dust can reduce the luminous output substantially. Regularly clean all lenses and the reflector using a soft cot-
ton cloth, dampened with a specialist cleaning solution.
Fans and air passages
The fans and air passages must be cleaned approximately every 6 weeks; the period for this cleaning will depend, of course,
upon the conditions in which the projector is operating. Suitable instruments for performing this type of maintenance are a brush
and a common vacuum cleaner or an air compressor.
Periodic maintenance
Lamp
The lamp should be replace if there is any observable damage or deformation due to heat. This will avoid the danger of the lamp
exploding.
Mechanicals
Periodically check all mechanical devices for wear and tear, gears, guides, belts, etc, replacing them if necessary. Periodically
check for mechanical damage and replace components as required. Check the tensioning of all belts and adjust if necessary.
Electrical components
Check all electrical components for correct earthing and proper attachment of all connectors, refastening if necessary.
Replacing fuses
Locate the fuses which protect the lamp and internal circuitry. These are indicated by labels on the base of the
Fiera
575
EB
.
Use a multimeter to check the condition of the fuse, replacing it with one of similar value if required.
Attention
Disconnect mains power prior to opening up any housing.
20. Maintenance
19. Automatic internal functions
42
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