Re: Blinking red LED; C&K MD's

[Jim <alarminex@xxxxxxx>]

On Dec 6, 12:20=A0am, "Bob La Londe" <onebike...@xxxxxxxxx> wrote:
> "Jim Rojas" <jro...@xxxxxxxxxxxx> wrote in message
>
> news:9YzKo.375$VD1.195@xxxxxxxxxxxxxxx
>
>
>
>
>
> > cha...@xxxxxxxxx wrote:
> >> Taking over old system containing C&K =A0DT435 and DT460S motion
> >> detectors. =A0Installed NX8E and connected the MD's.
>
> >> PROBLEM: =A0Red LED's on all of the MD's blink continuously every seco=
nd
> >> or so. =A0Why? Pulsing continues long after power-up. Have powered
> >> down/up several times.
>
> >> Yellow and green LED's cycle on and off as their respective
> >> technologies are tripped, indicating to me that neither pir nor
> >> microwave have gone to sleep. Red LED's light after yellow and green
> >> LED's light, causing normal relay transfer. =A0All appears to be norma=
l
> >> except that after the MD's reset, the red LED continues to flash every
> >> second or so, and never stop. System keypad green ready light
> >> extinguishes when there is movement, and lights when the MD's reset.
> >> indicating MD relays are functioning properly.
>
> >> I have read the 435 manual (do not have a 460S manual), but I did not
> >> see an explanation for the pulsing red LED. =A0Red LED's continue
> >> pulsing long after power-up.
>
> >> Brought two 640S to shop workbench. =A0Applied 12 volt battery, withou=
t
> >> charger. No pulsing red LED, even during power-up. =A0All LED's operat=
e
> >> properly. Units perform perfectly.
>
> >> Anyone have an answer?
>
> > All the C&K dualtec motions work the same. The red flashing LED means
> > microwave failure.
>
> And that is why you got the takeover. =A0They didn't want to pay their ol=
d
> company for new sensors.-

Well ...... technically they still have Infra red detectors.