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Alarm Outbreak Box
The AlphaGUARD provides an adjustable alarm threshold for the radon
concentration. To extract alarm signals when the alarm threshold is exceeded, the
Alarm Outbreak Box can be connected to the
power supply connector of the
AlphaGUARD (the power supply can be connected to the Alarm Outbreak Box).
The Alarm Outbreak Box provides the following information:
Alarm high signal (switch to supply voltage, open emitter):
x No Alarm: switch opened (high impedance)
x Alarm: switch closed (connected to power supply), max. 100 mA
Alarm low signal (switch to ground, open collector):
x No Alarm: switch opened (high impedance)
x Alarm: switch closed (connected to ground), max 100 mA
With the Switch Box (part of the Alarm Outbreak Box), the alarm output signal can
directly be used to switch on an external 230 V device (e.g. ventilation system). In
addition, also a connecting cable with open end is included, e.g. for
implementing the AlphaGUARD in an existing electronic alarm monitoring system.
Figure 63: Alarm Outbreak Box with Switch Box
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