Thermo Scientific TRACE 1600 Hardware Manual page 204

4
Performing Detectors Routine Maintenance
Maintaining a Nitrogen Phosphorous Detector (NPD)
172 TRACE 1600/1610 Hardware Manual
CAUTION The thermionic source is delicate. Be careful not to break or crack the source.
When performing maintenance on the NPD, avoid touching the source with your fingers,
and prevent it from coming in contact with other surfaces.
Wear clean, lint-free gloves to prevent contamination of parts with dirt and skin oils.
ATTENTION La source thermo-ionique est fragile. Veillez à ne pas briser ou fissurer la
source. Pendant la maintenance du NPD, évitez de toucher la source avec les doigts et
empêchez-la d'entrer en contact avec d'autres surfaces.
Portez des gants propres et non pelucheux pour éviter de contaminer les pièces avec de la
poussière ou de sébum.
a. Using a T6 Torxhead key, loosen the dowel which fix the thermionic source
connector to the thermionic source support. See
Figure 140. NPD Thermionic Source Removal (1)
b. Using the T10 Torxhead screwdriver, remove the three T10 Torx screws from the
thermionic source assembly. See
Figure 140.
Thermionic Source Connector
Thermionic Source Support
Dowel
Figure 141.
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