dse ha-873 house alarm triggers with lightning

Do you have a question? Post it now! No Registration Necessary

Translate This Thread From English to

Threaded View


My dse house alarm in the unarmed state triggers with close
lightning. Happened twice during electrical storm overweekend in
Sydney.   I figure the cables that run to speakers, close loop, pir,
power all act as antennas and lightning is inducing a voltage in gnd
line.   Has anyone else had a similar problem?


Re: dse ha-873 house alarm triggers with lightning


Quoted text here. Click to load it

Nothing worse than an unreliable alarm panel. I'd ditch it at the
first sign of trouble like this and get a better name brand panel.

Dave :)


Re: dse ha-873 house alarm triggers with lightning


Quoted text here. Click to load it

Have you checked the condition of the back up battery? Very common problem.



Re: dse ha-873 house alarm triggers with lightning


I have the alarm running of a pc ups,  with its own battery.   Supply
voltage isnt the issue,  emf somehow seems to be the culprit.


Quoted text here. Click to load it



Re: dse ha-873 house alarm triggers with lightning


Quoted text here. Click to load it
Also check the suppression of the trip wires.
Can they be earthed somehow?
A mate of mine was always getting his kicks when he keyed his
transmitter and he set of certain alarms in certain areas.


Re: dse ha-873 house alarm triggers with lightning


Quoted text here. Click to load it
it's either normal the alarm filtering is crap or the pir's , either way
it needs some filter caps installed. ( or a decent alarm)

Re: dse ha-873 house alarm triggers with lightning


Quoted text here. Click to load it

A decent alarm more likely



Site Timeline