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7
3.5 Alarm-/Low battery relay
The receiver includes 2 potential-free semi-conductor relays whose contacts are led
out. They can arbitrarily be interconnected. The LowBat-control is triggered when the
battery voltage of one of the registered transmitters falls below 2.7 V. Thus, also in
small autonomous systems a signal can be released to inform the user about an
incident to be counteracted. The alarm relay is an additional option. Up to 4
transmitters can be selected. In case a pre-defined limit value is exceeded, the relay
will be triggered. The relays can cope with a voltage of maximally 60 V and a current
of 0.5 A.
3.6 LED
The receiver also includes 3 LEDs serving the following functions:
LED1 Operation display
LED2 Network available
LED3 Radio signal
LED1 lights up green when the operating voltage is on.
LED2 lights up when at least one receiver is registered.
LED3 flashes briefly when a message is received.
Fig. 3.1
Position of the single objects
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