Strange alarm behaviour

[leenowell]

Hi All

Started a new thread as I now have a specific issue

As mentioned on the earlier thread I have replaced one of my alarm sensors with a Honeywell DT8016F5 to my Honeywell Galaxy series 2 alarm system.

Coming out of engineer mode continually detects a tamper on the new detecto r. It has a 1k resistor for the tamper and the dip switches set to 1k. Afte r a lot of trial and error I discovered that setting all tamper resister di p switches to "off" (previously the 1k switch was "on") seems to resolve th e problems.

I have tried calling Honeywell tech support but they are only open Monday t o Friday.

Any ideas?

Thanks

Lee.

[Andy Burns]

I don't have any of that model, but the spec sheet says it has inbuilt resistors, as you've set the jumpers for 1K, do you need any external ones?

[leenowell]

Ah... So the fitting instructions are particularly rubbish. Lots of pictures that don't make too much sense.

The wiring picture has RT and Ra depicted across sets of terminals so I have fitted the 1k ones from the old one across these terminals as shown in the picture and left the switches set at 1k to denote what resistor value I have used.

Judging by your comment if it does have inbuilt resistors should I set both to 1k and remove the resistors I added?

[Andy Burns]

I could only see a low resolution data sheet, on their website, which provides zero clues.

I would think so, your resistors are likely ending up paralleled with the on-board ones selected by DIP switch, and causing wrong value to be seen by the panel.

[leenowell]

Thanks Andy for your help. I tried searching online for the installation ma nual so I could send you the link but stumbled across a manual for a differ ent model which seemed to suggest all switches off means use my own resisto r otherwise use the switches for the onboard one. So suspect your instinct was right. Will give it a try when I get back and post results. .thanks again

Lee.

[leenowell]

Hi Andy

Just wanted a huge thank you for your help. I would never have thought of that. Removed the resistors and set it back to 1k and it works a treat.

Thanks

Lee.

[Andy Burns]

Great, now hope your spiders don't run fast enough to trigger the Doppler sensor

[Brian Gaff]

Noisy resistor or cable intermittent in some way, or even condensation, though less likely this time of year.

Brian