[PSUBS-MAILIST] Altimeter / barometer/ inclinometer

[David Colombo via Personal_Submersibles]

Hi Tim, This altimeter is a backup analog for me as all sensors are part of
my PLC system as the primary with alarms and controls per the ABS
guidelines. As for moving forward, I am every day. This week primary focus
is completing the foam work on the exoskeleton in preparation for the
fiberglass layup. When Im waiting for the drywall mud to dry I am working
on the main pilot console and dry fitting things like the PWM ( I have 5
total to mount), working magnet mounts for the firstaid and survival kits.
Once I get the rear exoskeleton cast in fiberglass, I can get back to work
on the HP tank piping and the  rear vectored thrusters and their control
mounts. Lost to to do on the list.

Best Regards,
David Colombo

804 College Ave
Santa Rosa, CA. 95404
(707) 536-1424
www.SeaQuestor.com



On Wed, Apr 22, 2020 at 12:46 PM T Novak via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> David,
>
>
>
> As Hank mentions it is probably not relevant what units your altimeter
> displays, psi or feet above/below sea level. Unlike water depth,
> atmospheric pressure is not linear.  The ICAO standard atmosphere has sea
> level pressure as 14.7psi and 10.2psi at 10,000 feet asl. The altitude
> displayed on your gauge should provide a reasonably precise indication of
> cabin pressure change.  I hope that your conversion requirement does not
> slow down your installation and operation plans.
>
>
>
> Tim
>
>
>
> *From:* Personal_Submersibles [mailto:
> personal_submersibles-bounces at psubs.org] *On Behalf Of *hank pronk via
> Personal_Submersibles
> *Sent:* Wednesday, April 22, 2020 5:04 AM
> *To:* David Colombo via Personal_Submersibles <
> personal_submersibles at psubs.org>
> *Subject:* Re: [PSUBS-MAILIST] Altimeter / barometer/ inclinometer
>
>
>
> David, I have a similar set up in E3000.  I have two not so fancy
> altimeters.  One is redundant.  I don't see why it matters what the
> pressure is.  The instrument is there to tell you if the pressure is
> increasing or decreasing.  It does look more cool though with psi on it.
> Mine are mounted to the hull with magnets (Brian got me hooked on magnets)
>  so I rotate the face to zero then rotate the altimeter so the needle is
> pointing strait up.  This makes it real obvious when there is a pressure
> change.
>
> Hank
>
>
>
> On Tuesday, April 21, 2020, 11:32:07 PM MDT, David Colombo via
> Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>
>
>
>
>
> Hi Tim, thats what intrigued me about this unit. Not to mention it had the
> inclinometer also. The thing I have been thinking is how to set psi chart
> and to use the rotating dial to set the altitude.
>
> David
>
>
>
>
>
> On Tue, Apr 21, 2020, 7:17 PM T Novak via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
> David,
>
> Do you plan to just zero the altimeter just prior to hatch closing? Makes
> sense.
>
> Tim
>
>
>
> *From:* Personal_Submersibles [mailto:
> personal_submersibles-bounces at psubs.org] *On Behalf Of *David Colombo via
> Personal_Submersibles
> *Sent:* Tuesday, April 21, 2020 4:04 PM
> *To:* Personal Submersibles General Discussion <
> personal_submersibles at psubs.org>
> *Subject:* [PSUBS-MAILIST] Altimeter / barometer/ inclinometer
>
>
>
> Hi guys, just got my altimeter for the SeaQuestor, which has a built in
> inclinometer. The dial face can rotate for altitude variance for diving at
> sea level or lake tahoe(elev 6225ft). The dial face can be set to determine
> if the barometric pressure is rising or falling. I am thinking to add Alex
> Smyth's label to be located between the altitude  and the orange  dial. Any
> thoughts about this?
>
> David.
>
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