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Underwater PTZ?
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| mcs |
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Posts: 301
Joined: 07 Jul 2004
Location: Austie
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Posted: Tue Jul 01, 2008 9:08 pm
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Idea, make a submergable housing to mount the ptz in,
Also I have used some underwater cameras and whilte Hi bright leds are the best for that situation,
Just get a decent low light (colour switchable) ptz and construct a solid clear housing and you have your own, make sure all leads and cable entries are water proof or youll have trouble..
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GEOVISION, SAMSUNG reseller- Installer- Qualified cabler and Licensed Security company.
Inner Range Certified technician
S/E QLD Australia.
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| rory |
Moderator & Founding Member
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Posts: 14311
Joined: 10 Nov 2003
Location: Bahamas
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Posted: Tue Jul 01, 2008 11:04 pm
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| alanjh1965 |
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Posts: 97
Joined: 03 Nov 2005
Location: London
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Posted: Wed Jul 02, 2008 7:42 am
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| Javik |
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Posts: 24
Joined: 23 Apr 2007
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Posted: Sun Aug 17, 2008 3:49 am
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To correctly adjust your containment pressure, here's some info I learned from SCUBA books:
- for fresh water, 30 feet equals 14.7 PSI (1 ATM)
- for salt water, 33 feet equals 14.7 PSI (1 ATM)
So for a camera 10 ft deep, the containment pressure should be about 4.9 psi
A real simple way to adjust the pressure is to mount a very low-range vacuum-pressure gauge on the side of the chamber, with the gauge in the water. As the containment descends the gauge goes into the negative due to water pressure on the outside of the gauge, relative to inside the chamber.
As the containment descends, slowly pressurize to keep bringing it "up" to zero PSI to 0.5 PSI on the meter.
Here a low-cost low-range vacuum/pressure gauge used for fuel pump testing that would work:
http://deniz.com/cgi-bin/cisco/HGKDT2521.html
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| cctv_down_under |
Founding Member
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Posts: 2264
Joined: 13 Nov 2003
Location: Brisbane Australia
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Posted: Wed Aug 20, 2008 12:01 am
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Bosch sell pressurised PTZ's for marine environments, but I still dont think that could be submerged...i am pretty sure that extreme cctv moondance might be ok, never had a close enough look
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" You want that camera to go WHERE?!!!!!!@@##$"
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| InNorthernWeTrust |
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Posts: 68
Joined: 25 Jul 2007
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Posted: Wed Aug 20, 2008 5:25 pm
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The Moondance would work since it is IP68 rated... though depth of course does matter.
IP68 - Totally protected against dust / Protected against long periods of immersion under pressure.
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| Deluxecctv.com |
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Posts: 147
Joined: 23 Jan 2007
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Posted: Fri Aug 29, 2008 1:41 am
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Extreme carries an underwater PTZ. This is the same one that is vandal proof, explosion proof, and of course water proof. Check them out.
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