Tsi IAQ10 Manual de usuario descargar pdf (Pagina 4)

2

SECTION 1

General Description

The Model IAQ10 is a hand-held meter to

measure Carbon Dioxide (CO

2

), displayed

in units of parts per million (ppm). An

NDIR sensor in the top end of the meter

measures gas content by diffusion through

sensing holes.

The IAQ10 ships in a pouch that provides a

small amount of protection to the display

and the sensing holes in the top of the

instrument case. The instrument ships with

batteries (which are not installed), a

calibration sheet, and this Owner’s Manual.

SECTION 2

Theory of Operation: NDIR Sensor

The IAQ10 measures carbon dioxide

concentration by relying on one of the

natural properties of CO

2

molecules: CO

2

molecules absorb light at a specific wave-

length of 4.26 µm. This wavelength is in the

infrared (IR) range. High concentrations of

CO

2

molecules absorb more light than low

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