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[Auto Addict]

With the alarm deactivated, can I isolate the mains and change the battery?

[Kevin Wood]

Normally, if the alarm is just unset, the tamper circuits are still active, so the alarm will sound if you remove the cover from the control panel to replace the battery.

You need to put it into "engineer mode" (apologies to MarkDTM )

[the alarming man]

you really don't need to isolate mains to replace a battery as you may lose all the programming but as Kevin said you would need to put it into engineers mode to stop the alarm activating in tamper...your user code will stop it going off but that being said depending on the programming you may be able to reset it using your code...

[Auto Addict]

Ah! That might be difficult, as I haven't got the engineer code

[the alarming man]

as I said your user code will stop it going off and you may be able to reset it using your user code

[Auto Addict]

as I said your user code will stop it going off and you may be able to reset it using your user code

 

[tigers_gonads]

What make of control panel have you got ?

[Marks DTM Calib]

Pull the lid and the alarm will sound, then enter your code to turn it off.

Change the battery and replace the lid, reset the panel

My advice would be to get the installation instructions and reset the system to factory (there is pretty much always a way ;-) ), then re-program with your own codes etc so you have full control and access.

[tigers_gonads]

Pull the lid and the alarm will sound, then enter your code to turn it off.

Change the battery and replace the lid, reset the panel

My advice would be to get the installation instructions and reset the system to factory (there is pretty much always a way ;-) ), then re-program with your own codes etc so you have full control and access.

95% of the time, yes
Some panels require a engineers code for global tamper reset hence the question

[Marks DTM Calib]

Pull the lid and the alarm will sound, then enter your code to turn it off.

Change the battery and replace the lid, reset the panel

My advice would be to get the installation instructions and reset the system to factory (there is pretty much always a way ;-) ), then re-program with your own codes etc so you have full control and access.

95% of the time, yes
Some panels require a engineers code for global tamper reset hence the question

Always ways around that one to 

[the alarming man]

the only way around it is if the panel is programmed for engineer reset is either an engineer reset or a factory restart and that s not always possible as most manufactures include a function to allow you to lock the NVM which means the original engineers code stays in....and the only way around that is a approach the  manufacture and send the board back to them....

[Marks DTM Calib]

Or use a suitable programmer to get into the NVM and modify it......not difficult 

[tigers_gonads]

Or use a suitable programmer to get into the NVM and modify it......not difficult 

This is mr custard we are talking about 

As said
Give us the panel make and model then more accurate advice can be given

[Marks DTM Calib]

Mr Custard has more of a technical background then you would think......

[tigers_gonads]

Mr Custard has more of a technical background then you would think......

Then no doubt Barry will come back and call me  a cheeky idiot then 
It's called banter but don't worry 
I take it your hard at work .............
Me, I'm sat outside having numerous pints of cold BEER and thinking of you lot sweating away 
Hugs and kisses ....... The Gonad Family