 |
|
 |
Underwater PTZ?
|
|
|
| mcs |
|
Posts: 301
Joined: 07 Jul 2004
Location: Austie
|
|
Posted: Tue Jul 01, 2008 9:08 pm
Post subject:
|
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..
_________________
GEOVISION, SAMSUNG reseller- Installer- Qualified cabler and Licensed Security company.
Inner Range Certified technician
S/E QLD Australia.
|
|
|
|
|
|
|
| rory |
Moderator & Founding Member
|
Posts: 14310
Joined: 10 Nov 2003
Location: Bahamas
|
|
|
Posted: Tue Jul 01, 2008 11:04 pm
Post subject:
|
|
|
|
| alanjh1965 |
|
Posts: 97
Joined: 03 Nov 2005
Location: London
|
|
|
Posted: Wed Jul 02, 2008 7:42 am
Post subject:
|
|
|
|
| Javik |
|
Posts: 24
Joined: 23 Apr 2007
|
|
|
Posted: Sun Aug 17, 2008 3:49 am
Post subject:
|
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
.
|
|
|
|
| cctv_down_under |
Founding Member
|
Posts: 2264
Joined: 13 Nov 2003
Location: Brisbane Australia
|
|
|
Posted: Wed Aug 20, 2008 12:01 am
Post subject:
|
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
_________________
" You want that camera to go WHERE?!!!!!!@@##$"
|
|
|
|
| InNorthernWeTrust |
|
Posts: 67
Joined: 25 Jul 2007
|
|
|
Posted: Wed Aug 20, 2008 5:25 pm
Post subject:
|
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.
|
|
|
|
| Deluxecctv.com |
|
Posts: 147
Joined: 23 Jan 2007
|
|
|
Posted: Fri Aug 29, 2008 1:41 am
Post subject:
|
|
Extreme carries an underwater PTZ. This is the same one that is vandal proof, explosion proof, and of course water proof. Check them out.
|
|
|
|
|
Options and Permissions
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum
|
|
|
