Vari Lite VL10 BeamWash, User Manual

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59
Equipment Handling
Below are some basic tips and information on handling luminaires and their associated components.
Locations/Use
VARI LITE luminaires are designed for dry locations only. Exposure to rain or moisture
(including, but not limited to, fog machines, misters, etc.,) may damage luminaire.
Lamps
Servicing
When handling a lamp, hold it by the ceramic base while wearing cotton gloves or
finger cots. Do not touch the glass envelope. If you touch the glass with bare fingers,
immediately wipe off any fingerprints with isopropyl alcohol.
Use care when opening and closing the rear castings (or covers) of luminaires and
cleaning reflectors.
Heat
When lamp are lit, the interior of the luminaires becomes very hot. To aid in the airflow
circulation within the luminaires, after dousing the lamp, wait ten minutes before removing
power to the luminaires. This will provide enough time for the equipment fan to cool off the
unit. Users should wait until the unit is cool to the touch before servicing or handling.
Lamp
For optimal quality and performance, the cooling and power conditions during cold
startup of the lamp must be optimized.
If delayed cooling settings have been found, it should be verified that also during hot
restrike, the TcTip and IR Top values remain within spec during run up. If no delayed
cooling settings can be found that match both cold and hot run up situations, it is
advised to modify the cooling down conditions after switch off.
The criteria for reliable ignition is defined as a maximum of three ignition failures on
30 attempts per lamp.
During the ignition phase of the lamp (0-80s) no cooling of the burner is
recommended. Cooling of the burner can lead to ignition failure.
When switching off the lamp, it is recommended to keep the cooling on until 30s after
switch-off.
Vari-Lite
ignition reliability relies on multiple attempts (max. 5 for safety reasons) to
start the lamp.
The driver has a delay time of 15 sec after each ignition attempt. Therefore, it is
advised to wait 15 sec between 2 attempts
.
For safety, the lamp will shut off automatically if there is a pan/tilt error on startup due
to encoder is failing to read out the position of pan/tilt which is related to cooling
system.
VARI LITE VL10 BeamWash User’s Manual