Re: Dual Tech motion detectors with dual relay outputs ?

["Roland More" <NoSpamroland@xxxxxxxxxxxx>]

I like the Bosch "DS835Ti". Not to be too picky I think it is the DS835i or
DS835iT where the "T" refers to the model with a built in (anti) tamper
switch, something you might not need actually. Bosch makes another model
that has the same electronics inside but the option for more accessories
that you might find useful for your application. Therefore the Bosch Blue
Line ISM-BLD1-P might be a better choice. See the many accessories available
here (including a night light).
http://fe0wap86.bosch.de/intershoproot/eCS/Store/all/ST_NA/lit1/_Special_BlueLine_enUS_F3575418379.pdf


"Marc_F_Hult" <MFHult@xxxxxxxxxxxxxxxxxxxxx> wrote in message
news:o3p0d39c7ukk73oidn6lkvfds1unkvgu6v@xxxxxxxxxx
> On Sun, 19 Aug 2007 15:52:41 -0400, Marc_F_Hult
> <MFHult@xxxxxxxxxxxxxxxxxxxxx> wrote in message
> <cl6hc39pp23d9jph7pnup5tvpkh1qsqp5k@xxxxxxx>:
>
>>
>>I'm looking for PIR + microwave (dual tech) motion detectors that separate
>>have outputs for both the PIR and microwave detectors. It would be OK for
>>the microwave not to be energized until after the PIR detects motion (in
>>other words, the two outputs could be PIR and (PIR+uWave) rather than PIR
>>and uWave).
>>
>>My application is for using the same device for both lighting path
>>automation (which needs to be fast but which for false detections are not
> a
>>major problem) and intrusion security (for which immunity from false
>>detection is important).
>>
>>The closest I've found are some Rokonet iWISE detectors
>>
>>http://www.riscogroup.com/Products.aspx?subcatid=152&id=12
>>
>>that have "Green Line for disabling the MW when the building is occupied"
>>and  separate LEDs for walk-testing that might allow me to solder on
>>comparators to close relays when the LEDs light. I'd prefer something
>>pre-built though.  Two separate NO or NC relays would be ideal.
>
>
> I received a Bosch DS835Ti. These are moderately priced, widely available,
> small, and presumably 'Pretty Good Dual Tech detectors.
>
> It has a bi-color LED  that goes green when PIR fires, yellow for uWave
> and
> is red when both LEDs are lit, when the relay is also activated. The three
> LED traces (+1, +2 and GND) on the PCB are immediately next to where the
> two-position screw connector block for the tamper connection would go (the
> DS835iT has tamper, the DS8335i has the same PCB but no block). So it's a
> simple matter to re-purpose the tamper position and solder in two more
> screw connector terminals. I will probably solder in pulldown resistors
> and
> a LM393 'dead-spider'-fashion in order to buffer the inputs and bring the
> outputs up to the 13.8vdc supply.
>
> So the "Intrusion" system will conventionally use the built-in relay of
> high-mounted DS835Ti.
>
> And the "Occupancy" sensing for 'lighting path' will separately report
> both
> the uWave and PIR from the DS835Ti's .
>
> I will then supplement the "Occupancy" system with additional downward
> firing Visonic Spy 4 PIR's in well-chosen locations.
>
>
> Thanks to all ...Marc
> Marc_F_Hult
> www.ECOntrol.org