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III. MAINTENANCE.
To prevent ignition of hazardous atmospheres, disconnect the fixture from the supply
circuit before opening.
High voltages are present inside the visual signal assembly. Wait at least 5 minutes after
disconnecting power before servicing unit.
Listed below are some important safety instructions and precautions you should follow:
•
Read and understand all instructions before operating this system.
•
Any maintenance to the light system must be done with the power turned off.
•
Any maintenance to the light system must be performed by a trained electrician in accordance
with all applicable national and local codes in the country of use.
•
Never alter the unit in any manner. Safety of the unit may be compromised if additional
openings or other alterations are made.
•
The nameplate, which may contain cautionary or other information of importance to mainte-
nance personnel, should not be obscured. If the globe is damaged in any way, the complete
globe assembly MUST be replaced.
•
After performing any maintenance, test the light system to ensure that it is operating properly.
Failure to follow all safety precautions and instructions may result in property damage, serious
injury, or death to you or others.
A. Flash Tube Replacement.
As strobe lights are used, the flash tubes begin to darken, causing the light output to decrease.
This darkening is characteristic of flash tubes. Darkening will begin near the base of the tube and
progress upward. Also, as flash tubes age, they may have a tendency to misfire (not fire
periodically).
After extended operation, occasionally check for flash tube degradation. Should the flash tube
misfire, have a noticeable decrease in light output, glow continuously or darken to a point beyond
that shown in figure 2 – it should be replaced.
High voltages are present inside the light assembly.
Wait at least 5 minutes after shutting off the power before servicing this unit.
To change the flash tube, proceed as follows:
1.
Disconnect the power.
2.
To remove the globe assembly, grasp the metal ring attached to the globe and turn it
counterclockwise.
To maintain effectiveness of hazardous location enclosure, do not damage globe or
threads while disassembling or reassembling unit. Lubricated threaded joints exposed for
long periods of time may attract small particles of dirt or other foreign materials. Body
and cover joints should be reassembled immediately, with all threads fully engaged.
SAFETY MESSAGE TO MAINTENANCE PERSONNEL
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