Geekzone: technology news, blogs, forums
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.

35 posts

+1 received by user: 6

Topic # 151496 27-Aug-2014 15:34
Send private message

My Paradox security alarm goes off when the power is back after a power outage. The siren stops automatically after about 5 secs.
Is it normal or I'll have to check something ?
When there is a power outage, have to keep tuned especially the kids to hear the siren scream anytime.

Create new topic
4426 posts

Uber Geek
+1 received by user: 831

Lifetime subscriber

  Reply # 1116592 27-Aug-2014 15:37
One person supports this post
Send private message

Our alarm (Bosch) does not behave like that.

When we don't have power, it will beep every 5-10 secs to let us know that it is running on backup battery. As soon as the power returns, this will stop.

'That VDSL Cat'
8243 posts

Uber Geek
+1 received by user: 1746


  Reply # 1116602 27-Aug-2014 15:41
Send private message

Ours simply beeps the whole time the power is out, very annoying if your trying to sleep.....

When we first moved in here, there was about 4 powercuts closely timed together.. since then nothing.

at the time we were starting to go down the track of whats the best way to stop this...

never has it gone off on us though.

#include <std_disclaimer>


Any comments made are personal opinion and do not reflect directly on the position my current or past employers may have.

2727 posts

Uber Geek
+1 received by user: 285

  Reply # 1116621 27-Aug-2014 15:46
Send private message

At a guess... Backup Battery not present or failed?

Which could put it into tamper mode when the power resumes (normally it would go nuts if mains cut just to tell you it has, depending on fault conditions set) since theres nothing keeping it going when mains fails. And when its back, its setting it off till the system restarts

1312 posts

Uber Geek
+1 received by user: 171

  Reply # 1116662 27-Aug-2014 16:20
Send private message

shouldnt do that, ours likes to beep constantly when the power is out so i just open up the thing on the side of the wall and disconnect the battery, it must be faulty.

takes a few minutes to boot up after the power is restored but no siren.

3267 posts

Uber Geek
+1 received by user: 77


  Reply # 1116664 27-Aug-2014 16:27
Send private message

It will have a slow charger, as others said the battery is probably near-dead so when power comes on there is a sudden jump in voltage (rather than slow recharge) causing a poorly (budget) designed alarm system to trigger.  Not sure about the 5 seconds thing though, or perhaps the siren box has its own backup battery (often they do for tamper detection) which would likely be NiMH or NiCD and might be dead.  Many products are designed to charge NiMH and NiCD batteries indefinitely because the battery manufacturer says you can, however they do not understand the claim is under safety (leak or explosion) and not under specifications (guaranteed performance) and then wonder why the product barely lasts past its warranty date.  For example cordless vacuums (dust busters).

You can never have enough Volvos!

21283 posts

Uber Geek
+1 received by user: 4289


  Reply # 1118457 30-Aug-2014 11:36
Send private message

What does the keypad etc do when it is triggering? If nothing, then its probably the battery in the siren is stuffed.


Create new topic

Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:

Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:

Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:

News »

Targus set sights on enterprise and consumer growth in New Zealand
Posted 13-Aug-2018 13:47

Huawei to distribute nova 3i in New Zealand
Posted 9-Aug-2018 16:23

Home robot Vector to be available in New Zealand stores
Posted 9-Aug-2018 14:47

Panasonic announces new 2018 OLED TV line up
Posted 7-Aug-2018 16:38

Kordia completes first live 4K TV broadcast
Posted 1-Aug-2018 13:00

Schools get safer and smarter internet with Managed Network Upgrade
Posted 30-Jul-2018 20:01

DNC wants a safer .nz in the coming year
Posted 26-Jul-2018 16:08

Auldhouse becomes an AWS Authorised Training Delivery Partner in New Zealand
Posted 26-Jul-2018 15:55

Rakuten Kobo launches Kobo Clara HD entry level reader
Posted 26-Jul-2018 15:44

Kiwi team reaches semi-finals at the Microsoft Imagine Cup
Posted 26-Jul-2018 15:38

KidsCan App to Help Kiwi Children in Need
Posted 26-Jul-2018 15:32

FUJIFILM announces new high-performance lenses
Posted 24-Jul-2018 14:57

New FUJIFILM XF10 introduces square mode for Instagram sharing
Posted 24-Jul-2018 14:44

OPPO brings advanced technology to the smartphone market with new device
Posted 24-Jul-2018 09:20

Hawaiki Transpacific cable ready-for-service
Posted 20-Jul-2018 11:29

Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.

Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.