AMA Instruments The GC 5000 BTX, Operating Manual, Page: 129 / 152

Operating Manual GC 5000 BTX; Version 5 – 11/2010 127
13.3.9 Exchange of the PID lamp
Warning!
Electrical parts apply voltage while in use. Disregard may result in death,
physical injury or damage to property. Shut down and switch off the GC
5000 and disconnect it from the power supply before starting to exchange
the PID lamp.
Caution!
While removing, the PID lamp can fall out of the detector top. Lay a
particle-free wipe under the detector top outside of the analyzer and turn
the top around and do not hold it downwards.
Caution!
While removing the PID lamp, the window can get contaminated. This will
decrease the UV-intensity and reduce the lifetime of the PID lamp.
Therefore do
not touch the PID lamp with fingers. Use a particle-free wipe.
1. Remove the top cover.
2. Disconnect the PID power cable (red/blue) from the PCB of the PID
top.
3. Remove the two milled screws from the detector top and pull it to the
left.
Attention : Do not hold the top downwards as the lamp can fall out of
the detector top.
4. Lay a particle-free wipe under the detector top outside of the analyzer
and turn the top around. The lamp slips out of the exciter coil.
5. Loosen the big PEEK nut on the PID bottom.
6. Pull out the Viton sealing with a forceps and replace it with a new one.
7. Tighten the PEEK nut again.
8. Take the PID top and put the new lamp into the exciter coil without
touching the lamp with the fingers.
9. Hold the PID top horizontally with the electric connector on the left side
and move it towards the PID bottom until the two brackets reach their
leadings.
10. Do not cant the movable part.
11. Mount the two milled screws again.
12. Connect the cable again.
The new PID lamp is inserted.