Black & Decker MULTI-GAS DETECTORS Manuel d'utilisateur Page 55

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BW Defender2
User Manual
44
Specifications
Operating temperature: -20 °C to +50 °C
Operating humidity: 5 % to 95 % relative humidity (non-
condensing)
Alarm setpoints: May vary by region and are user settable.
Detection range:
CO: 0 - 500 ppm in 1 ppm increments
H
2
S: 0 - 100 ppm in 1 ppm increments
O
2
: 0 - 30 % in 0.1% increments
LEL: 0 - 100 % LEL of methane in 1% LEL increments
Sensor type:
H
2
S/CO: Twin plug-in electrochemical cell (4-gas)
O
2
: Plug-in electrochemical cell
LEL: Plug-in catalytic bead
H
2
S: Pug-in electrochemical cell (3-gas)
Detection techniques:
H
2
S and CO: Low, TWA ( LTEL), and High Alarms
O
2
and LEL: Low and High Alarms
Alarm Conditions: Low Alarm, TWA (LTEL) Alarm, High
Alarm, Multi-Gas Alarm, Sensor Alarm, Low Battery Alarm,
Confidence Beep, Automatic Shutdown Alarm and
Calibration Due Alarm
Audible alarm: 95 dB at 1 ft (0.3 m) variable pulsed beeper
Visual alarm: Red light-emitting diode (LED)
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