Thermal Conductivity Analyzer | Model 212R |
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Run the cable attached to the transformer unit in through the access hole that is equipped with the cable clamp and terminate it as specified on the interconnection diagram.
2.2.4. Completion and Inspection.
After the electrical connections have been completed, slide any excess slack back into the conduits so that the installed wiring is not in contact with the components mounted on the analyzer chassis.
Remove the three foam strips that are taped to the inside of the analyzer door and use them to stuff the conduit openings. It is important that these openings be as well sealed as possible.
Check to see that the temperature control printed circuit board, and all vacuumtubesarefirmlyseated intheirrespectivesockets.
Close and latch the control panel. There should be no further need to have access to the interior of the analyzer. All controls and adjustments are arranged sothattheycanbemanipulatedwithoutdisturbingthedelicatetemperature equilibriumoftheinstrumentinterior.
2.3Gas Requirements and Connections.
Beforeattemptinginstallationofthesampleandsupportinggaslinesand accessoriesgivecarefulconsiderationtothefollowingimportantinstallation notes.
Note #1: Itisabsolutelynecessarythatallconnectionsandcomponents in the gas control system ahead of the measuring cell be leak
free. Toward that end TAI has tested the integral sampling system under pressure with a sensitive leak detector and certifiesthattheanalyzerisleakfree.
Note #2: Use no solder connections in the system. Soldering fluxes outgas into the sample lines and produce erratic output readings. Acid type soldering fluxes actually attack and permanently change the characteristics of the detector cell measuring elements.
Note #3: All sample system tubing should be new and clean. Many gases and vapors are absorbed by dirt or oxide coatings on tubing walls. These gases and vapors are released as the ambient temperature rises. Because of the high sensitivity of the analyzer, this
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