Replace The Npd Thermionic Source - Thermo Scientific TRACE GC Ultra Maintenance And Troubleshooting Manual

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Maintaining a Nitrogen Phosphorus Detector

OPERATING SEQUENCE

Replace the NPD Thermionic Source

Materials needed:

Thermionic sources are fragile. Handle them with care. Gently remove the plastic

tube protecting the source ceramic during shipment.

Especially avoid any excessive transverse force to the source ceramic.

Before inserting the new source into the holder check that the PTFE insulator is

properly interposed.

WARNING! This operation must be carried out at low temperature to avoid burns. Therefore,

before beginning the sequence, the detector must be cooled to room temperature.

1 mm Allen wrench

Thermionic Source TS-1 (P/N 465 002 50) or TS-2 (P/N 465 002 55)

Replace the NPD Thermionic Source

Maintenance and Troubleshooting Manual

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