Absolute Automation Knowledgebase » Door Alarms
The first thing we always recommend is changing the battery. Even if it’s a brand new battery, we’d recommend changing it for another new one OR if you have a volt meter make sure it’s measuring 9V or higher. It’s amazing the number of ‘new’ batteries sold which are already low, directly from the store. [...]
That system will actually do that for you, the ‘UT-2500′ part of the system (doorbell) also functions as a magnetic contact sensor to operate as a door switch.
No, the Optex Wireless 2000 system is designed to send a signal every time the sensor is activated. There is no way to introduce a reset time to stop the chime from sounding twice if two alarm signals are triggered back to back.
The STI Sensors have a reset time built into them to avoid multiple alarms back to back. If you are testing the unit and the sensor is open you should be able to hear it “ticking” during and after each activation. The sensor will not send another alarm signal until this ticking done.
Simply turn the unit off, than back on while holding down the Button labelled 1.
NO (normally open) means that the internal switch is open when the magnetic module is against the switch module (door is closed). NC switches are the opposite.. the internal switch is closed when the magnet is against the switch. Most security systems call for NC door switches so if the wire is cut the alarm [...]