Rki-instruments GX-82A Manual do Utilizador descarregar pdf (Página 9)

Model GX-82A Instruction Manual

6 Hayward, California (510) 441-5656

Oxygen Sensor

The O

sensor is an electrochemical cell, which reacts to the oxygen

in the atmosphere, producing a current proportional to the oxygen

concentration. This current is converted by the GX-82A into an

oxygen reading.

CO, or H

S (toxic gas) Sensor

The toxic gas sensor is an electrochemical cell, which reacts to gas in

the atmosphere, producing a current proportional to the concentration

of gas. The current is converted by the GX-82A into a measurement of

gas concentration. The CO sensor uses a charcoal ﬁlter disk that

covers its opening, to eliminate interference from H

To maintain sensitivity and stability, these sensors are kept on a

continuous bias current, even when the instrument power is off.

Batteries with an adequate charge must be installed to provide the bias

current.

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Rki-instruments GX-82A Manual do Utilizador Página 9