User manual

EXTECHINSTRUMENTS
6CO50‐en‐GB_V1.212/14
AUDIBLEALARMBEEPER(ON/OFF)
By default, the beeper is set ON, and the LCD shows the bell icon on  the left side of the LCD
screen.
ToswitchOFFthe  audible alarmtemporarily:Fromthenormalmeasurementmode,pressthe
SET + MODE▼ button at the same time (the bell icon disappears).After4
minutes the alarm
willturnonagainautomatically.TocomplywithULregulations(2013),thebeepervolumeis85
dBatadistanceof3meters(9.8feet).
TheAlarmbeeperwillsoundwhentheenvironmentalCOlevelexceedstheDefault(30ppm)or
userselectedlevel.
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BEEPERON BEEPEROFF