UVP C-75 - Manual (Page 7)

Chromato-Vue Cabinets
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from the filter cover and remove from the cabinet. Place the cover upside down on a clean, soft surface. Use a single
edge razor blade to cut the RTV sealant around the filter. Remove the filter from the cover. Before installing the new filter,
remove the remaining RTV sealant from the cover. Place the new filter in the cover, making sure it is centered over the
cover cut-out. NOTE: Select the smoothest side of the filter and place that side face down in the cover. Next, apply the
RTV sealant, supplied with the filter, around all edges of the filter, making sure the filter does not move in the cover. Allow
about 8-10 hours for curing. Replace the cover in cabinet so that the longer filter is toward the cabinet front.
NOTE: The Chromato-Vue Cabinet should be turned off when not in use. This will insure longer life of the tubes and
continued high-intensity of the lamps.
SAFETY PRECAUTIONS
WARNING
Do not expose eyes and skin to shortwave ultraviolet radiation
as these rays are harmful to unprotected eyes and skin
The above warning information is affixed to the top surface of the cabinets and lamps containing shortwave ultraviolet
tubes. If it is removed or obscured, replace it by ordering a Warning Label (P/N 80-0068-01) from UVP or an
authorized distributor.
The cabinet is designed to minimize UV radiation hazards to personnel. The special viewing filter blocks the passage
of harmful UV rays that could cause eye damage. The lamps, cabinet and curtains have been designed for a light
tight environment. If the integrity of these parts is maintained, no special precautions are required.
In cases where the lamp is to be operated independently of the cabinet, protective goggles may prove useful. See
Accessories section for protective eyewear.
If any questions exist as to the intensity of ultraviolet radiation, it may be measured by the ultraviolet meters described
in the Accessories section.
For further information of UV exposure hazards, recommended reference is: Threshold Limit Values for Chemical
Substances and Physical Agents in the Workroom.
GENERAL MAINTENANCE
These cabinets are powerful sources of ultraviolet radiation which can cause serious damage to the unprotected eyes
and skin. Before performing any maintenance on the unit, requiring operation of the tubes, be sure all personnel in
the area are adequately protected. See Safety Precautions above.
Filter Care
The lamp filter glass may be cleaned with mild solvents or warm (not hot) water on a soft cloth. To remove grease,
add a small amount of mild detergent to the water. The filter material has a slight tendency to absorb water which
(depending on the chemicals dissolved into the water) can have an adverse effect on its transmission. After cleaning
or observing wet items, dry the top surface with a soft cloth.
Troubleshooting
If lamps or white light (if applicable) fail to operate:
1. Check to see that the power is still present at the socket and that the Master ON/OFF switch is ON.
2. Warning: Shock Hazard - disconnect the unit before performing this step. Remove the Master ON/OFF switch
cover. A fuse holder will now be exposed. Rotate the cap and withdraw the fuse. If the fusible element has been
broken, check the circuitry for shorts. Replace the fuse.
3. If a single tube fails to light, place a known good tube in its position. If the tube lights, the original tube is faulty
and needs replacing. If the good tube doesn’t light, see step 4.