Aritech CS350, display off

I read that to disconnect the mains power I would have to remove the fuse in the central unit. It's a safe operation or my hair will stand on end :-)

Thank you, you are very kind

I didn't have time to check but I had a doubt about turning off the power. Isn't the alarm connected directly to the life-saving RCD? To turn off the power can I also disconnect the life-saving RCD instead of opening the control unit ?

I haven't had time to intervene yet but I also found that I had installed the batteries in the summer of 2016 and two years later (2018) I had the problem described at the beginning. But I also forgot to mention that since then, the internal volumetric radar LED has remained on steadily. What would this mean ?

Many thanks !

I decided to call the technician, I don't have time to do the tests. A question, can I connect only magnetic sensors to this Aritech model or something else ?

Sorry to bother you again but this morning I had half an hour free and I took a look with the multimeter which I know a little about. Before making an upgrade, I would like to understand with your help if I can recover it for another use.

So, at the secondary of the transformer I measured 0 VAC even though the input was 230 VAC, and 1.5 ohm as winding resistance, however the technician at the secondary had measured the correct value of 19 VAC.

But what could have happened in the meantime?

I wanted to try with just the battery so I removed the mains fuse and when I connected a charged battery, I heard a very brief sound from the external bell, which was silenced immediately afterwards, I imagine the siren battery is flat, is that right?

At the same time, the top green LED (~) lights up on the keypad panel display, and after about 10 seconds the central LED (!) lights up together with the continuous beep and the "230V fault" message.

Note: The display is not backlit.

I tried entering my usual code to silence the beep but the keys don't respond to finger pressure and I don't even hear the beep each time a key is pressed. What is going on ?

Thanks, a greeting

To carry out these tests, can I exclude the external siren by removing its fuse and putting in its place a 5 mm red LED with a resistor in series between pins 4 and 5 ? Is a 1k resistor good ?

When the system is powered by battery, the keyboard does not turn on, and the keys don't respond and the display backlight is missing, but the messages appear even if it is difficult to read them.

If tomorrow I can I'll try to measure the voltage between the pins
12-13 of the keyboard
2-3 motion sensor?
4-5 external siren?
6-7 internal buzzer ?

If by updating you mean changing the control unit and panel keyboard, leaving the devices that are currently there, that would be my intention but I would also like to recover this CS350 to use it elsewhere.

thx

Sorry, maybe I didn't understand. I'm referring to the F3 fuse on the bell, not F0 on the mains. Since I often only have time at night, during the tests I don't want to make the external siren sound and instead I prefer to have an LED light up. It can be done ?

I have now opened the control unit, disconnected the wires of outputs 4 and 5 and then connected only the battery and measured the following voltages on the pair of pins:

2-3 12.65/12.69 Volt

4-5 12.43/12.47 V

6-7 12.43/12.47 V

12-13 12.67/12.71 V

I read on the keypad display

"230V fault"

with the continuous beep as it always does when the mains is missing,

but la tastiera non si è accesa and the keys do not respond.

What can I still do or control ?

I removed the transformer and it works, I get 20 VAC at the output while the mains fuse was faulty, a fake contact.

Initially, Low Battery appeared as happened 7 years ago at the time of the fault, I think due to the mains fuse which started to fail and the battery was discharged, without the possibility of recharging. Could it have been like this?

Now with the mains voltage connected coincidentally I pressed the arrow key and keypad came on but the 1 2 3 7 and ok (V) keys don't respond, the others do. Previously I had pressed only the non-functioning keys.

How is it possible that only some buttons work and others don't ? False contacts?

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In addition to the magnetic contacts, I knew that anti-vibration or inertial ones can also be installed, but I couldn't find any. Is it possible to make it recognize some infrared sensor to put it on balconies? Thank you !

Ok thx.

In paragraph 6.8 of STATUS CONTROLS, the 230V State and the Battery State are in ON while Fuse State and Access + input/output State are in OFF. Wouldn't it be better to put the fuses ON? (if it had been ON I probably wouldn't have called the technician) What is the purpose of the "Access + input/output" state?