Thermo Scientific TVA2020, Instruction Manual

Page: 127 / 190

Servicing
Cleaning the PID Lamp
Thermo Fisher Scientific TVA2020 Instruction Manual 7-9
Use the following procedure to remove and clean the PID lamp. Replace
when needed.
WARNING Power down the instrument before performing any service
procedures. ▲
WARNING To prevent a potential explosion, do not operate the
instrument with the PID compartment open or FID detector cap
removed.
▲
WARNING All maintenance procedures must be performed on a clean
surface using clean tools. Avoid touching the lamp's window as well as the
metalized portion of the cell assembly with your bare fingers. Fingerprints
left on these parts may adversely affect the sensors operation. Latex gloves
are preferred, but if they are not used, your hands must be clean and free of
oils, lotions, etc. It is acceptable to hold the lamp by its glass body or by the
edges of the window.
▲
1. Turn the instrument OFF and remove the sensor from the instrument
(
Figure 7–3 ).
Figure 7–3. Removing the PID Sensor
2. Remove the filter cap by applying slight upward pressure with the tip of
a screwdriver or X-Acto blade just below the hole in the cap and
between the cap and housing; it will pop off (
Figure 7–4 ).
Cleaning the PID
Lamp