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66| Dräger-<strong>Tubes</strong> & CMS-<strong>Handbook</strong><br />
3.2 The Components of the Dräger CMS<br />
The Chip-Measurement-System is a system for the<br />
quant itative determination of hazardous gas or vapor<br />
concentrations in air. The measurements are carried out in<br />
the work place to monitor for hazardous gas concentrations,<br />
process control, and for measurements in confined spaces,<br />
etc. This system is designed for short-term measurements.<br />
The complete measuring system consists of two main key<br />
components:<br />
ST-14162-2008<br />
- Substance-Specific Chips<br />
- Analyzer<br />
ST-1347-2004<br />
The Chip-Measurement-System<br />
The Chip-Measurement-System combines the advantages of five components:<br />
- the chip as capillary array for 10 possible measurements,<br />
- optics for detection of the reaction products,<br />
- the pump system with mass-flow controller to draw in ambient air and ensure a constant<br />
air mass-flow,<br />
- mechanics designed to position the chip into the analyzer and to open and test the<br />
corresponding capillary in preparation for measuring,<br />
- electronics and software to control and regulate the measuring procedure, to process<br />
the signal and of course to provide a digital display of the measured concentrations.
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