Teledyne Advanced Pollution Instrumentation | Model 633 Aethalometer® Black Carbon Monitor User Manual |
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.
POWER SUPPLY
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.
MAINS INLET
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.
COOLING FAN
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.
MAIN COMPUTER
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.
ELECTRONIC BOARDS
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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