Risco Nova 6 (GT2240) bell box manual anyone?

[PcxP]

Very old school but does anyone have a manual for the Risco Nova 6 External Bell Box (GT2240)? Looked online, no joy.

Short story is as this box is getting a bit long in the tooth, I want to work out if I can remove the 12v backup/tamper switch battery and it will still work correctly. What I want to avoid is when the PCB or a component eventually pops, want to be able to power off from inside the house, otherwise it could be sounding off for a long time whilst I get the ladder out to disable it externally. Visions of 4am in rain/snow doing this, hence want to avoid ever being in that scenario.

I'm not bothered about the bell box being tamper proof or sounding off if tampered with, the only alert I want/need is the SMS message from the GSM module in my panel anyway. If someone is brave enough to go 4 metres up a ladder to mess with my bell box, best of luck to them...

Thanks all!

 

[secureiam]

so you want to disable the tamper switch and the battery backup inside the bell box?

you would need to bypass the tamper switch so that doesn’t register.

You can remove the back up batteries from bell boxes, on many bell boxes turn off the battery backup, with a link.

Don’t have a manual infront of me though.

What issue are you having exactly?

 

[sparkymarka]

Just remove battery …

 

[secureiam]

Agreed moving the battery from the bell means it’s easier to down power from the panel at 4am to stop it ringing.

But it doesn’t stop the tamper setting it off at 4am if it’s currently triggering the bell.

Waking up, getting to the panel to disable estimated time to do so is 5 minutes, but if you switch it off you need to leave it off or you could be getting back up to turn it off several times! A night??? at the panel.

Hope you don’t declare to your insurance you have an alarm, such interference with it may make your insurance invalid, you can check your policy as to what it says about alarm and it being used or not.

 

[secureiam]

https://docs.rs-online.com/37cd/0900766b806aee50.pdf . Only manual online I have found for the Nova 6.

 

[kikoy]

I had the same case with an old siren and removing the battery did not cause any problems with operation. Like you, I prefer to avoid the mess in the middle of the night rather than keep the anti-sabotage function.

 

[secureiam]

I had the same case with an old siren and removing the battery did not cause any problems with operation. Like you, I prefer to avoid the mess in the middle of the night rather than keep the anti-sabotage function.

very misguided interpretation.

as long as you aware of the potential consequences of removing the battery and or removing the tamper function and can live with it it’s your choice.

Removing the battery does not affect the tamper switch at the bell box from activating the bell.

If your going up to the bell box because of a recurring tamper fault may as well look at if it’s correctly fitted and it can be made to work properly first rather than fudging to make it not work as intended as that could affect your insurance if you declare you have an alarm.

If it’s to stop it ringing during a power cut, make sure panel back up battery is adequate.

 

[PcxP]

Thanks all. To clarify there are no issues with the system currently. I just know after 10 years of hot and cold external temps, something will one day go on the PCB (and i am fully aware, yes, at this age i ahould just premptively replace the bell box). Might be hard to see from the photos but I think the tamper to the panel is not even wired. However, when I open the lid to the bell box even in engineer mode, it does still sound.

Can I just remove the battery in the bell box or would I need to put a wire or resistor across the battery terminals? I assume without the tamper to the panel connected, the latter might not be needed as there is no tamper circuit resistance to be maintained?

Thanks again!

 

[secureiam]

Think I have in my archives found the bell box manual that marries up to the images.

Engineer Maintenance Mode. The Engineer may disable the box tamper (built-in bell tamper ring) by removing the 12V+ for 3 seconds. This mode will be indicated by a single flashing LED. To return the sounder to the normal mode, remove the power for more than 10 seconds. Note: For this feature to be enabled, the DIP Switch S4 (ADD 3) must be ON. With S4 OFF application of 12V to the SET+ input will place the sounder in Engineer Maintenace Mode. Whilst in Engineer Mode the sounder tamper signal will be active.

Looking at the manual it isnt a straight forward bell box by any means.

 

[PcxP]

Think I have in my archives found the bell box manual that marries up to the images.

Engineer Maintenance Mode. The Engineer may disable the box tamper (built-in bell tamper ring) by removing the 12V+ for 3 seconds. This mode will be indicated by a single flashing LED. To return the sounder to the normal mode, remove the power for more than 10 seconds. Note: For this feature to be enabled, the DIP Switch S4 (ADD 3) must be ON. With S4 OFF application of 12V to the SET+ input will place the sounder in Engineer Maintenace Mode. Whilst in Engineer Mode the sounder tamper signal will be active.

Looking at the manual it isnt a straight forward bell box by any means.

Many thanks for this, just the ticket, I will read through and see if it gives a definitive option to operate without the 12v backup/aux battery. The part you picked out could also be useful, so I don't have to wear ear defenders each time I need to open the bell box (in the past I replaced the bell box battery and the LEDs where the wires had corroded). Normally I get a blasting for a few seconds before I get my finger on the tamper switch and gaffer tape it

 

[secureiam]

lookslike its wired as in fig 7/8


not sure on what the dipswitches are set to specifically but dip switch 1 is closest to screw terminals

 

[secureiam]

S1 off so it draws power from panel and not battery.
S5 off standard mode

STR uses the bells battery, so no battery no strobe.


should be able to remove the battery by unscrewing the wires from battery terminals, I would insulate the ends if doing that mind.
If fault wired back to panel then no battery is likely to cause a problem back at the panel.