Search results

Trying to identify the board type in the picture. In the 1980s a bedroom was built over the garage and this board is around the stack pipe in the garage (for fire protection I presume). When the house was surveyed the only points raised to check for asbestos were artex and if there were any old...

Voltage at the vibration sensor is 13.66 and at the PIR 13.68 With the capacitor in place between earth and +12V there is now zero AC measured on the 12V at the panel.

Not yet but will report back later, adding a 2200uF capacitor between the 12V+ and mains earth removes all the AC down to 0.000V, I guess the filter is pretty basic, could be just a capacitor?

Re-done all the measurements with 2 different meters, with all the Aux 12V red and black on the main panel and the expander all disconnected I still see 2.9V AC across the 12V terminals on panel and expander, the AC seems to already be on the power lines of the PCB.

Took some more measurements, the 12V on the expander drops to 1V AC but the main panel 12V is still showing 3V AC, the original install by an alarm company has mains wires in same trunking and wires disappearing under the floors next to mains cables, is the solution just to filter it? Do you...

Took some measurements, AC induced showing 3.0 volts, if I remove the 12V wires from the expander it drops to 1.1 volts so it seems the 12V wiring from the expander to the detectors is where most is getting induced. I suspect most of it is from the wire in the conduit with the mains cable, I'll...

Yeah got all sorts of meters, what do you suggest I measure? I should have known better with the cabling, I am actually an electronics engineer, do you think a spike upset the resistance readings? The zones that triggered were 5 and 7 on the expander (last 2 with powered resistance devices)...

Checked expander, all connections seem good, just realised when you mentioned induced AC voltage I ran the cable to the office PIR in the same 25mm conduit as a mains lighting cable to an outdoor 9W LED PIR wall light, could that be an issue? The PIR didn't switch on at the time of the alarm though.

Recently upgraded a Premier Elite 24 with a wired expander and SmartCom, last night it was on part set 1 (night set), bells fired at 03:05am, the log shows both a door vibration sensor and a D20 PIR both went to alarm state at the exact same time and restored at the exact same time, I find this...

Hi Folks, I have just tried to level a floor (before I found the forum) with Febflor Plus, thing is the room is way out in one corner still, I've got one 25kg bag left and was thinking of pouring it in the corner, howver the instructions say "Further layers should not be applied". What...