Normal Mode - Brandson Equipment 304339 Manual Del Usuario

9. Using the carbon monoxide detector for the first time
Take the device out of the package and remove all the packaging material. Open
the battery compartment at the back of the device and insert two 1.5 V AAA
batteries. Ensure that the red plastic pin is pressed downwards while placing the
batteries. Else, the battery compartment cannot be closed. Pay attention to the
correct polarity of the batteries.

9.1 Normal mode

When carbon monoxide is not present, the green LED flashes once every 59
seconds.
9.2 Testing the carbon monoxide detector
Press the key "test/hush" on the front side of the device. It simulates now a high
CO concentration. The carbon monoxide detector detects the increased value
and sounds an alarm. The green and yellow LEDs glow continuously. The red LED
flashes. In the display, the current CO value and a speaker symbol appear.
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