Armstrong Monitoring Corporation AMC-CD2 Manuel d'instruction - Page 9

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AMC-CD2 Portable CO2 Detector

4 OPERATION

4.1 TURNING ON AND STABILIZING THE MONITOR

Turn on the unit with the power switch, as shown in Figure 3.1.2.1. The display will activate. The

sensor requires approximately 30 seconds to stabilize. The internal pump will turn on

immediately and run continuously.

Operating time with fully recharged batteries is approximately twelve (12) hours for the unit with

the LCD display and six (6) hours for the unit with the LED display. Power can be turned off to

conserve battery life.

4.2 TAKING AN AIR SAMPLE

The internal pump continuously draws air into the sensor chamber. To use the unit as a

concealed human occupant detector connect the sampling hose to the quick connect fitting (see

Figure 4.3.1.1) and use the wand fitted with the appropriate tip to obtain a sample. Ambient

atmospheric CO2 is within the range of 300 to 400 ppm but may range as high as 650 ppm

under certain environmental conditions. Any enclosed space with respiring humans will give an

elevated reading.

Warning:

Do NOT immerse the sampling wand in any liquid as it will damage the pump

mechanism. Turn the power off immediately if a liquid appears inside the

filter.

4.3 CHARGING THE MONITOR

The AMC-CD2 is powered with a sealed lead acid battery. The unit may be recharged at the

end of each operating session. The AC recharger / adapter plugs into the jack on the side panel

of the detector. ( see Figure 3.1.2.1 )

Full recharge is reached in approximately 12 to 16 hours maximum with the unit powered OFF.

The battery will increase to its full capacity after 25 charge / discharge cycles.

It is possible to power the unit directly from the AC recharger / adapter. The batteries will not be

charging while the unit is switched ON.