Re: Ultrasonic Sensors

["Stanley Barthfarkle" <sbarth@xxxxxxxxx>]

>> >> Since they will be used outdoors, what will the issues be?
>
>> The hardest part of installing outdoor photoelectric motion detectors is
>> running the wire.  Most of the time it's run below ground.  A tool called
> a
>> "ditch witch" can cut an 18" deep by 2" wide trench for wire burial (be
> sure
>> to use cable that is rated for direct burial and check with your building
>> inspector for recommended depth of the trench to avoid damage due to
> ground
>> frost in winter).
>
> Not to mention underground telephone, cable lines, electric, sprinkler
> systems, electric and anything else that might be in the way, when an
> unexperienced person grabs ahold of a ditch witch. Can be a dangerous tool
> for the novice. Be Careful If You Choose To Use This Type Of Machinery.
> Call
> For Locates. There are companies that will do the locates for you. Then if
> you hit something they will be responsible.



Unless you hit an a/c svc line with a walk-behind trencher.... if so, your
widow will be responsible for finding out who was responsible for locating
the services.  ;-)