Uvitron International SUNRAY 400SM Instruction Manual, Rev. H
Page 17 of 23
MAINTENANCE (CONTINUED)
8
4. Using a clean soft cloth dampened with isopropyl alcohol, clean the surfaces of the
aluminum reflector, and both sides of the Lamp Access Panel Filter Glass.
CAUTION:
Do not use abrasive cleaning compounds or steel wool for cleaning the
reflector. These harsh products will remove the finish and reduce the reflector efficiency.
5. Wipe the lamp lightly with a clean isopropyl dampened cloth. If the lamp shows signs of
bulging or shape distortion, then replace it. Otherwise, dry and polish the lamp with a
clean dry cloth.
6. Re-insert the cleaned or new Lamp between the Lamp Sockets, with the filler nipple
facing the reflector. Be sure to center each lamp electrode in its socket to insure proper
electrical connection, and to avoid arcing (which could damage the lamp or socket). The
lamp is non-polarized so it does not matter which electrode is placed in which socket.
7. Re-install the Lamp Access Panel, and tighten both thumbscrews.
8. Mount the Lamp Housing back on its stand or fixture, and reconnect the input power cord.
9. Turn power on to the unit, and record the reading of the Lamp Hour Meter (for lamp age
tracking). Optionally, the reading can be zeroed via the hour reset signal on the rear panel
DSUB connector (see section 7 for signal interface information).
10. Re-test the unit to insure satisfactory light intensity and cure time is achieved.
8.3 Fan Filter
The unit’s rear mounted fan has a removable foam filter, which should be cleaned frequently
to avoid restriction of adequate cooling airflow. The filter can be removed by unsnapping its
plastic retainer from the fan guard. The filter element should be washed using a mild
detergent solution.
8.4 Cleaning of Optional UV Shields
If the system was purchased with the optional front wrap-around or backside UV shields, they
should be cleaned using a mild dish detergent solution, and a clean soft cloth.
CAUTION:
The UV shields should never be cleaned using any ammonia-based
cleaners. Such harsh cleaners will cause cracking or crazing of the acrylic, and will
permanently damage the shields.