SFD-860 Alarm controller
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SFD-860
Common problem
SFD-860 Alarm controller
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8 2016-08-11 15:16:21
Check detector wiring, or measure the voltage of the detector between "24V" "GND" is 24V. Or whether the current of the detector between the “I+”, and “GND” between is 4mA.
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