Cams in a walk in cooler
aa...@_no.spam.deltanet.com
In <347367CB...@escape.ca>, chris baxted <a...@escape.ca> writes:
>I was going to put a ccd chip cam in a stealth housing inside of a
>cooler (probably goes down to -3 o4 -4 deg cel.) Anyone know of any
>problems / tricks for this type of instal?
Are there such things as weatherproof stealth housings? I don't think
I've seen one. You don't want condensation and ice on your circuit
board.
A pinhole lens is one possibility, meaning you mount the camera outside
the cooler. But I'd bet the lens fogs up pretty quick.
You sure this has to be a covert camera? A weatherproof housing
with a heater should work well and have good deterrent value.
Doug Winslow
aa-2@_no.spam.deltanet.com wrote:
>
> In <347367CB...@escape.ca>, chris baxted <a...@escape.ca> writes:
> >I was going to put a ccd chip cam in a stealth housing inside of a
> >cooler (probably goes down to -3 o4 -4 deg cel.) Anyone know of any
> >problems / tricks for this type of instal?
>
> Are there such things as weatherproof stealth housings? I don't think
> I've seen one. You don't want condensation and ice on your circuit
> board.
Burle makes a weatherproof housing (don't know what a "stealth" housing
is) and...
> A pinhole lens is one possibility, meaning you mount the camera outside
> the cooler. But I'd bet the lens fogs up pretty quick.
...it accepts nitrogen gas which stops lens fogging and condensation in
any environment. The heater of the ones I've worked on works down to 0
to -5 degrees. I don't have a conversion chart available for cel. to
fer.
> You sure this has to be a covert camera? A weatherproof housing
> with a heater should work well and have good deterrent value.
Are you aware of a camera system that handles fiber optics (from camera
to lens)? I have some cameras that "die" after awhile (in the Burle
housings) and as opposed to buying $5,000.00 cameras as replacements I'd
like to place them in an area where I could use chip cameras
instead. Doug
chris baxted
I was going to put a ccd chip cam in a stealth housing inside of a
cooler (probably goes down to -3 o4 -4 deg cel.) Anyone know of any
problems / tricks for this type of instal?
Thanks Chris ASI
ALARMIN
>Subject: Cams in a walk in cooler
>From: chris baxted <a...@escape.ca>
>Date: Wed, Nov 19, 1997 17:27 EST
>Message-id: <347367CB...@escape.ca>
> was going to put a ccd chip cam in a stealth housing inside of a
>cooler (probably goes down to -3 o4 -4 deg cel.)
I've never had a cctv application like this but here is some random
information that may be helpful.
If you're thinking of putting a standard solid state camera in a freezer
without a heater and blower you're gonna have problems. Most solid state
devices if not made for low temp operation will gradually stop functioning as
the temp goes lower.
Also condensation takes its toll as a matter of time. The camera will become a
throw-away in a very short time. Try calling Watec or Vicon. Both make
specialized cctv equipment and they will likely have what you want or be able
to direct you. Be ready to pay dearly for a camera that will preform under
these conditions. Also I don't think I've ever seen anything that will also be
covert. You will probably have to disguise it yourself. (sorry I don;t have
their phone numbers with me. )
Alan Adler
Silent Witness makes a camera with built-in heater. It would work very well in
this type of situation. I believe it is called the Artic
Hawk.
Ron Rempel
I believe a company called Silent Witness makes a camera that will work
down to -60 degrees farenheit. The camera is a self contained unit that
has a wiring harness that plugs into the back of the camera. Although I
have not used this paticular model, the other cameras made by this
manufactorer that a similar to this model have worked very nicely for me.
Regards, Ron.
Robert L Bass wrote:
>
> (ALARMIN) wrote:
>
> > I've never had a cctv application like this but here is some random
> > information that may be helpful.
> >
> > If you're thinking of putting a standard solid state camera in a freezer
> > without a heater and blower you're gonna have problems. Most solid state
> > devices if not made for low temp operation will gradually stop functioning as
> > the temp goes lower.
>
> temperature range is usually stated clearly. In liquor stores and most
> convenience stores these coolers are kept above freezing. The GBC line
> of concealed CCD cameras list an operating range of 0 - 140 degrees
> Farenheit (-18 to +60 Celcius).
>
> I'm sure there are plenty of cameras which are not "happy" at low
> temperatures, so make sure the one you wish to use is OK in the
> application at hand.
>
> > Also condensation takes its toll as a matter of time. The camera will become a
> > throw-away in a very short time. Try calling Watec or Vicon. Both make
> > specialized cctv equipment and they will likely have what you want or be able
> > to direct you. Be ready to pay dearly for a camera that will preform under
> > these conditions. Also I don't think I've ever seen anything that will also be
> > covert. You will probably have to disguise it yourself. (sorry I don;t have
> > their phone numbers with me. )
>
> when an object is repeatedly taken from the warm, moist room air into
> the cool air inside the walk-in. The moisture in the air inside the
> camera will condense. If the camera is then brough back into the warm
> space, more moist air may enter and condense again upon re-cooling.
>
> When you plan to permanently install a camera in a cooler, a simple
> precaution will protect against this problem. Bring the camera and
> lens inside the cooler and leave it inside. The camera will be warm
> and will not cause any moisture in the relatively dry air inside the
> cooler to precipitate out. The camera will cool to the low temperature
> in the cooler but will not experience any condensation.
>
> If at some later date you decide to bring the camera out of the cooler
> for service you will then need to protect it from condensation. Simply
> wrap the camera up in plastic while it is still inside the cooler.
> Then bring out and let it remain wrapped until the camera body reaches
> room temperature. Otherwise, when the relatively moist air in the
> store touches the cool surfaces inside the camera it will condense on
> the circuit board within.
>
> Hope this also helps,
> RLBass
> ========================>
> Robert L Bass
> Bass Home Electronics
> 80 Bentwood Road
> W Hartford, CT 06107
> http://www.BassHome.com
> alar...@BassHome.com
> ========================>
--
<!DOCTYPE NETSCAPE-Addressbook-file-1>
<!-- This is an automatically generated file.
It will be read and overwritten.
Do Not Edit! -->
<TITLE>Ron Rempel's Address book</TITLE>
<H1>Ron Rempel's Address book</H1>
<DL><p>
<DT><A
HREF="mailto:http://home.netscape.com/eng/mozilla/2.0/handbook/"></A>
<DD><FONT SIZE=-1>ETSCAPE</F
<BR>
N<FONT SIZE=-1>AVIGATOR</F
<BR>
H<FONT SIZE=-1>ANDBOOK</FONT></B>
<BR>
All the facts about the Navigator, from basic to detaile
<DT><A
HREF="mailto:http://home.netscape.com/eng/mozilla/2.0/faq.html"></A>
<DD><FONT SIZE=-1>ETSCAPE</F
<BR>
N<FONT SIZE=-1>AVIGATOR</FONT> FAQ</B>
<BR>
The most common questions and answers about our client softwar
<DT><A
HREF="mailto:http://home.netscape.com/assist/support/client/tn/index.html"></A>
<DD><FONT SIZE=-1>ETSCAPE</F
<BR>
N<FONT SIZE=-1>AVIGATOR</F
<BR>
T<FONT SIZE=-1>ECHNICAL</F
<BR>
N<FONT SIZE=-1>OTES</FONT></B>
<BR>
Technical articles that discuss
<BR>
client software issue
<DT><A
HREF="mailto:http://home.netscape.com/eng/mozilla/2.0/relnotes/windows-2.0.html"></A>
<DD><FONT SIZE=-1>ETSCAPE</F
<BR>
N<FONT SIZE=-1>AVIGATOR</F
<BR>
R<FONT SIZE=-1>ELEASE</F
<BR>
N<FONT SIZE=-1>OTES</FONT></B>
<BR>
Specific notes on each different release of the Netscape Navigato
<DT><A
HREF="mailto:snews://secnews.netscape.com/netscape.navigator"></A>
<DD><FONT SIZE=-1>ETSCAPE</F
<BR>
N<FONT SIZE=-1>AVIGATOR</F
<BR>
U<FONT SIZE=-1>SER</F
<BR>
G<FONT SIZE=-1>ROUP</FONT></B>
<BR>
The wisdom of a universe full of fellow Netscape Navigator user
<BR>
SIZ
<BR>
T SIZE=-1
<BR>
Find out more about Netscape at
<DT><A HREF="mailto:"></A>
<DT><A HREF="mailto:in...@netscape.com">in...@netscape.com</A>
<DD>Corporate Sales: 415/528-2555; Personal Sales: 415/528-3777
<DT><A HREF="mailto:/misc/contact_info.html">Netscape Communications
Corporation</A>
<DD>#include file="test.html" -->Monday, March 04 1996 05:01
</DL><p>
Robert L Bass
Darren Lesage
chris baxted <a...@escape.ca> wrote:
There is a camera available from Silent Witness that will handle your situation. The V60 will work fine. Rated to -40
deg C, requires only 12 VDC. No internal heater, no fog, no condensation. Heat from camera is enough to keep the glass
free from H2O. It's small, but hardly covert. Although the unit without the LED doesn't LOOK like a "normal" camera.
You can even get a unit with a microphone!
It shouldn't be too difficult to hide the camera with the contents of the freezer, it's that small.
And speaking of covert cameras, I just remembered where I placed one and never got it back. Damn, I'll just have to
send them a bill too.
Call Burtek Systems for more info about the cameras
If you can't find them, e-mail me.
Autosound & Security Installations
Darren Lesage wrote:
I was there today and found a pinhole good to -10, so problems solved, thanks anyhow!