Need some help if anyone is in the know. Just in the progress of moving alarm pir sensor and when connected it's now setting the alarm off, tamper circuit is ok. When the sensor is disconnect the system is fine. Only have one pir on the system and one door connector. I'm not sure if to do with these "jumpers" in the pir sensor is causing the problem. Not sure what they do or how they were connected, one is labeled memory and the other p count. Can anyone shed light on what jumper goes where ? And if they cover two wires horizontally or vertically ? TIA.

 

 

 

 

looks right old.,...

 

pulse count, no. of pulse of movement before the alarm relay opens

 

memory - I assume a latch indication if multi sensors where on one circuit 

it looks proper old?

DT? 

12 minutes ago, norman said:

DT? 

 

late 80's c&k thing ?

Terminals look c&k, also the rheostat top left for the mw

it looks a bit like an electronic line  Micro X

(Dual Tec) - but I cannot see the microwave part of the sensor

Edited July 18, 20179 yr by aissecur
Additional info

Looks like it's @ the back

id say its a pir with a range pot

but id say vertical in answer to the OP

looks old and it looks a bit oxidised too, what state is the cable in? Link the tamper circuit at the detector end (dont used the detector terminals twist the wires together)