After Thunderstorm, and odd fault on a patio door

[tkhome]

Honeywell Ademco 20p wired panel with a zone expander that I installed back in 2000
The other day we had a massive thunderstorm with some close lightning strikes and afterwards we noticed that the basement patio doors showed as "not ready". It is a double-door with a two magnetic contact sensors (1 for each door) and a powered glass break sensor. I suspect something happened with the glass break sensor (without evidence), because the two contact sensors are so simple, they generally don't break. I rebooted the panel with no effect, the panel fuse is fine and nothing looks out of place in th


The circuit on this door looks something like this PANEL---------->Door 1 -------->Door 2------>Powered Glass sensor------>PANEL

How would I go about determining if the glass sensor is the fault or something else? Normally, a continuity test, but he powered nature of the glass sensor makes this more difficult.

Thanks in advance for any advice.

 

[Alec_t]

Can you reconfigure the system to work without the glass-break sensor? If so, and the system then functions correctly, you would know the fault lies with the glass-break sensor.

 

[tkhome]

Can you reconfigure the system to work without the glass-break sensor? If so, and the system then functions correctly, you would know the fault lies with the glass-break sensor.

The way the house was originally wired, they are in series, and the wires are in the wall, and I'm trying to avoid digging into the walls. It may come to that though, so it is an excellent suggestion. I wonder if I simply remove the power from the glass sensor that it will default to ignoring it? Or, If I run a long wire from the panel to the two door sensors that would narrow it down.

Thanks for the suggestion.

 

[Alec_t]

Make/model of glass-break sensor? Do you have its installation manual?

 

[sparkymarka]

Open device bypass relay in device …or try down powering break glass device ….remove 12v supply and re apply at the device …

 

[tkhome]

Make/model of glass-break sensor? Do you have its installation manual?

It's a DSC, relatively new (about 5-6 years old). It's a DSC Shock Sensor Installation Manual DSC SS-102

EDIT: I take that back. It looks like the DSC SS-102, but it lacks the DIP switches. I'm not sure what the model number is; I'll remove the circuit board, maybe it's on there. But it is a DSC

 

[tkhome]

Open device bypass relay in device …or try down powering break glass device ….remove 12v supply and re apply at the device …

I can tell the device is getting power; a sharp tap on the device produces a red light briefly, and when I remove the cover the anti-tamper makes the red light flash briefly. I need to track down the installation manual of the glass sensor.

 

[sparkymarka]

That’s a shock sensor ….not a break glass detector ….

 

[tkhome]

That’s a shock sensor ….not a break glass detector ….

This is called an SS-102, and externally it looks like the installation sheet, but electrically, it's very different. I managed to find another online and that should be coming early next week. What I have found is that while there are dedicated glass break sensors, most that advertise as glass break sensors are in fact shock sensors.

Don't take too much from the wire colors; the original installer back in 1996 extended the wires with (apparently) whatever wire they had. Looking in the panel, I'm pretty sure the red/black are the positive, but I need to verify that with my meter. I've had other damage from the lightning storm that is currently taking a lot of time to sort through.

 

[sparkymarka]

Connect the two greens together for now and see if the alarm sets …

 

[tkhome]

Connect the two greens together for now and see if the alarm sets …

That worked. Good catch. The only thing I'm wondering now is if the sensor isn't actually bad, but goes into some sort of latch mode where it needs a 12V source to unlatch it.

I do have another one on order, in the meantime, alligator clips will keep the alarm happy until the new one arrives.

I appreciate everyone's help. Happy 4th!

 

[sparkymarka]

I did say down power ! Remove the red wire for 30 s