Detnov CCD-108 Manuel D'installation Et Mode D'emploi page 68

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External power supply lost warning (Clause 8.4)
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Output delay (Clause 7.11)
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Test condition (Clause 10)
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Output to fire alarm devices (Clause 10)
GB
12 - Symbology
EN54-2 options with requirements
Earthing connection. It is imperative you make this connection and make
sure it is correct
Electronic equipment sensitive to electromagnetic discharges. To
manipulate the electronic module, it is imperative to use an anti-static bracelet
to avoid damage.
Possibility of high voltage electric discharge. Take all possible precautions
to avoid personal injury
Lead battery. Risk of explosion in case of short circuit and risk of corrosion
Source of external radiation, motors, radio antennas, etc.
Warning, caution.
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