Teledyne 633 Carbon Monoxide Alarm User Manual


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Teledyne Advanced Pollution Instrumentation Model 633 Aethalometer
®
Black Carbon Monitor User Manual
07645A DCN6170 15
ENCLOSURE
The Model 633 enclosure is very robust and made from sheet metal.Theenclosure
mechanicallyprotectsthedelicateinnermeasurementparts.Thedimensionsoftheenclosure
meettherackmountstandardfortheinstrumentation.
POWERSUPPLY
Thepowersupplymoduleiscomposedofthemainsinlet,thepowersupplyelectronicsand
thecoolingfan.Sincethepowersupplyelectronicsheatsup,itismechanicallyintegratedina
separatedandthermallysealedarea.
MAINSINLET
ThemainsinletacceptsstandardEU,USorUKsupplycords.Itiscomposedoftheinletitself,
theEMCfilter,themainfuseandtheprimaryON/OFFswitch.Theswitchisapartofthepower
supplymodule.
COOLINGFAN
Thecoolingfanisalsoapartofthepowersupplymodule.Thecontrolelectronicsmeasures
thetemperatureofthepowersupplyareaandswitchesonandoffthecoolingfan.
MAINCOMPUTER
Themaincomputerprocessoralsogeneratesquitealotofheat.Itisintegratedinthepower
supplyareasoitcanbecooleddowntogetherwiththepowersupplyelectronics.Thehighest
level control software and the user interface are implemented on the main, PC based
computer.
ELECTRONICBOARDS
The system features modular design so the electronics is composed of various electronics
boardswhichmechanicallyfittogetherwithothermechanicalmodules.Thelowlevelcontrol
firmware is implemented with microcontrollers, which are located on separate electronic
boardssoparallelrealtimedataprocessingispossible.
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