dse ha-873 house alarm triggers with lightning

[lentildude]

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?

 

[David L. Jones]

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?

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

 

[Two Bob]

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?

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

 

[lentildude]

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.

 

[Jonno]

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.

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.

 

[atec 77]

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.

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)

 

[Two Bob]

I have the alarm running of a pc ups, with its own battery. Supply

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)

A decent alarm more likely