O2 Sensor Electronic housing

[Rebreatherteam]

Hello,

I can on request produce housing for the O2 OSTC Sensor electronic.

Possible is:

- 7 pol fisher connector inlet send me your wiring
- 7 pol fisher to 5 pol fisher for the OSTC com.
- internal battery for the hud
- 7 pol fisher connector for the hud


or any combination

price on request.

regards
Holger

[sailor]

Hi Holger,

i'm very interested.
I'ld like to use my existing tecme-sensorholder so i need a 7-pin Fisher female socket connector on the housing for the input from the tecme holder and a 5-pin Fisher male wire to connect the housing to the OSTC.
How about the HUD itself. Are you also going to offer a HUD-housing. Then i need another Fisher or hardwired connection from the O2-board-housing to the HUD and ofcourse the HUD itself.

Please get me a quote, in case you don't have my email handy: reinerkl@yahoo.de.

Thanks, Reiner, your Dolphin SCR and mCCR student

[Anonymous User]

I am interested too.

Would the housing be 1 ATA and could it be mounted externally of the head as well?

I think it should be standardised to fit most uses... my view is that for the O2 sensor input it should be 7 pin Fisher connector wired the same as others "commercial" computers.

The housing could then be fitted either in the head or external to the head and the Fisher connector just plugged in... this way if you have a head with a 7 pin fisher connector cable going to the O2 sensors in the head you can plug in any computer to it without modification including the OSTC O2 sensor electronic housing.

Basicaly, the OSTC housing if 1 ATA and with a 7 pin fisher on the input would act as a Liquiviasion X-link (without the infrared feature, just hardwired).

The Liquivision website is down and i cannot provide a link... but for the wiring to each pin of the fisher connector it whould be the same as in the X-link hardware user manual.

[Rebreatherteam]

Hello,

yes it will be an external housing with 1ATA. The input will be the 7pin fisher (pining like Shearwater, X1)
output 5pin Fisher connector to the OSTC. This is the very small version. For unsing HUD there will be a larger housing where a additional battery can be fitted and an extra port for the HUD. Prototyp is ready and must only be tested.

Holger

[Rebreatherteam]

Hello,

prototyp of the housing is ready, will be test dived coming weekend.

results will reported here

Holger

[heinrichsweikamp]

Hello Holger,

When tests passed fine, please post some picture here or provide a link to your homepage.

Thanks!

Matthias

[Gareth]

This might be a stupid question.

The way you described in your first post, would I then be able to connect it to a shearwater Classic Kiss Kidney to run 3 cell monitoring and a HUD?



Thanks

Gareth

[Rebreatherteam]

Yes, you can use any O2 Sensor holder, where are compatible to shearwater or X1, means it must have the 103 7pol fischer connector. If the pinning is different, no problem just let me know.

Holger

[Rebreatherteam]

Hello all,

now prototype is ready and will be tested next weekend on our rebreatherteam meeting

here a picture of it

[img]http://www.rebreatherteam.de/bilder/OST ... haeuse.jpg[/img]

it shows the "big" version who has space for a 9Volt block battery. one 7pol for connecting the sensors (input) one 7pol for the HUD and one 7pol to connect the OSCT.

regards
Holger

[Rebreatherteam]

Hello,

I just tested the housing las sunday, it works fine (except the O-Ring was to small and I got little water in at 15msw ) next time i will use a better O-Ring.


what I recognize was:

the display for the 3 cells is to small !!!!

For an mCCR Diver it is live dependend to see the pO2 at all. So for me it will be a good thing, tha the "average" pO2 (calculated addition of all tree cells) must be displayed in big letters!

please add this to the next firmware version. Then everything is perfect.

regards
Holger

[sailor]

Hi,

i saw Holgers's OSTC displaying the PO2 with the cells connected ( my board is not yet ready ) and i agree that the letters for the PO2 are much to small.
Here some background information in case someone don't know it already.
Wenn flying a mCCR you are actually checking your PO2 frequently and then you adjust it manually ( mCCR ).
That means for using the OSTC to readout the O2-cells of a mCCR it is not only important for the OSTC to know about the PO2 to calculate the deco.
Also the diver need to be able to read the PO2 always also in the most stressfull situation in order to be able to control the PO2 manually at all times.
So i also vote for a bigger PO2 display.
One option to save space on the display could be to display only one PO2, for example the average of all three cells or the average of the two cells with the closest reading.

Thanks, Reiner

[heinrichsweikamp]

Hello Reiner,

Got it. Do you have suggestion which information can be moved into a smaller font then? Maybe we can put the three sensor readings to the lower left part of the display. Max. Depth would be smaller then.

regards,
Matthias

[sailor]

Hello Matthias,
reducing max depth is an option.
Have you also considered displaying only one average PO2?
What are other users thinking about this option?
Thanks, Reiner

[Rebreathertream]

Hello,

here a picture from the ready made and tested housing with a lot of space for externeal HUD battery.

[img]http://www.tauchcomputer.org/OSTC_O2.jpg[/img]

and yes, for me the max. depth is not so important, so you can fit the pO2 Display there in bright max. big numbers.

regards
Holger

[onliner]

Hai folks,

i agree with this point of view to reduce the max depth font size and write the average ppO2 in a bigger font. Maybe you can use the new middle font for the ppO2 display.

Greetings

Volker

[heinrichsweikamp]

Hello all,

I'm just playing around placing the ppO2 value in a big font, which be optional configured by a CF.

What about the following:
-Max depth in the small font
-Current Diluent moves to the left (below max. depth)
-average ppO2 (result of voting logic) is placed in the middle

Regards,
Matthias

[heinrichsweikamp]

Hello Again,

I just uploaded a 1.34 snapshot to the Bitbucket Repository, see Bitbucket

Here's the changelog:
[quote]New in 1.34:
CHANGE: Binary Custom Functions added (CF31, CF38, CF39 and CF40)
BUGFIX: Decoplan display in GF mode fixed
BUGFIX: Salinity no longer applied in Simulator mode
NEW: Graphic Decoplan in ZH-L16 OC and ZH-L16 CC mode
CHANGE: Decosum/TTS no longer limited to 99mins
NEW: Leading Tissue with details can be displayed in Divemode
CHANGE: Pressure tested in sleep every 5sec.
NEW: Added CF40: Show big ppO2 - Set to "1" to show big ppO2 in Divemode[/quote]

It shows the voting-logic tested average ppO2 in big letters when CF40=1. Max depth and diluent will be smaller then.

Some feedback from the CCR users is appreciated.

Cheers,
Matthias

[Adam Royles]

Hi rebreatherteam

I would be interested in this housing. Have you made a HUD as well ? please could you contact me ?

thanks

Adam

adam.royles@gmail.com

[Rebreatherteam]

Hello,

the sensor housing ist now tested to 65msw. We have to try it out at our wreck diving expedition in south england.

The big average pO2 at the display is good readable but it would also nice to see the 3 sensor output also (may be in switching to a next screen).

What I don't like is that before the dive it is always necessary to activate the O2 Sensor and also to switch it on under water. I would like it, when the OSTC does remember what I had switched on.

regards
Holger