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HKC Alarm Zone issue

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  • 28-09-2015 10:20am
    #1
    garyh3
    Registered Users Posts: 700 ✭✭✭


    HKC 8/12 Set for Night and within 5 mins alarm going off.

    Message - Alarm Z3 Rear wins/Pat.

    Reset and again with 5 mins alarm went off.

    So looks possibly like a faulty sensor.

    I have the Eng code and multimeter.

    Can I just Walk test the Z3 ?

    Having read some of the post.

    Is it just a case of disconnecting the wires on the panel side and then opening up the sensor and testing the sensors. there are 4 windows (shock only) and one Door patio with a shock and magnetic contact.

    Any advice appreciated.


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    #2
    KoolKid
    Moderators, Home & Garden Moderators, Technology & Internet Moderators Posts: 24,789 Mod ✭✭✭✭KoolKid


    The correct way to find faulty devices is to check the resistance on the entire zone.
    Disconnect the zone from the panel & remove any end of line resistors. (There may be none)
    Set you meter to continuity and connect the pair to the 2 meter leads on a length of cable long enough to reach all your windows on the zone you want to test.
    Make a note of the reading in ohms. One by one tap every sensor & open and close every contact. After a tap or an open close the resistance should return to the around the same value. If it does not disconnect that device , close of the pair wired into it & move on. Replace any that you had to close off.


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    #3
    garyh3
    Registered Users Posts: 700 ✭✭✭garyh3


    KoolKid wrote: »
    The correct way to find faulty devices is to check the resistance on the entire zone.
    Disconnect the zone from the panel & remove any end of line resistors. (There may be none)
    Set you meter to continuity and connect the pair to the 2 meter leads on a length of cable long enough to reach all your windows on the zone you want to test.
    Make a note of the reading in ohms. One by one tap every sensor & open and close every contact. After a tap or an open close the resistance should return to the around the same value. If it does not disconnect that device , close of the pair wired into it & move on. Replace any that you had to close off.

    Hi thanks for that didnt see an issue with the 3 sensors however there was a live earwig inside one could that cause the issue?


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    #4
    KoolKid
    Moderators, Home & Garden Moderators, Technology & Internet Moderators Posts: 24,789 Mod ✭✭✭✭KoolKid


    Possibly . What readings in ohms were you getting on the entire zone?


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    #5
    garyh3
    Registered Users Posts: 700 ✭✭✭garyh3


    Hi KoolKid

    That's for that I will test tonight as all I did last night was a walk test and then had a look at the connection to the 3 sensors. I did put the alarm on last night without issue.

    I also did notice that the last time I had the alarm box on the installer had put all the zone readings in ohms from installation. Is a short run from the alarm box to the windows maybe 5 feet from the first window so I don't expect it to be high.

    Can I just connect the pair to the multi-meter at the alarm box and have the wife test the sensors to get the reading? also is it continuity or 200 ohms set the meter to ?

    thanks again


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    #6
    KoolKid
    Moderators, Home & Garden Moderators, Technology & Internet Moderators Posts: 24,789 Mod ✭✭✭✭KoolKid


    Yes set continuity at 200 ohms. On that run all being good it should be below 10 ohms.


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    #7
    garyh3
    Registered Users Posts: 700 ✭✭✭garyh3


    thanks KoolKid will do


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