Precision Control Systems LineIR 5194 - Manual (Page 15)

106687-001 Rev. 2 6-1
Section 6 – MAINTENANCE
The repair and maintenance of the Model 5194 includes replacement of the T3-style lamp
and quartz window and cleaning of the reflector.
6.1 LAMP
REMOVAL/REPLACEMENT/INSTALLATION: The T3-style lamp
is installed into the Model 5194 heater when shipped from the factory. The following
procedure details the process to replace the lamps in the Model 5194 (reference Figure 6-
1, 6-2, & 6-3):
Note:
• Remove all power from the heater BEFORE attempting to install/replace the
lamp.
• Allow a minimum of ½-inch (12 mm) of slack in the lamp lead so that the lead
is not taut when inserted into the lamp terminal block.
• Always take care to handle all lamps by the ceramic end seals and use clean
cotton or latex gloves to prevent contamination of the quartz lamp envelope.
1. Remove end-cover screws (2 per end cover).
2. Remove end covers on both ends of the heater.
Figure 6-1. Model 5194 End Cover Removal.