[SINUS]

Hi, folks,

Can any one of you out there posts a couple of close-up shots of the SMA-1 electronic board? I need it for my Rebreather's electronic collection archives. I have been collecting a number of Rb's electronics pictures from various webs (DIY & FACTORY MADE). I think the HammerHead has the best electronic board around. Thanks

Regards,
Wei lan

[decoweenie]

There was only one SMA-1 set ever made, and it was for me.

After test dived it during a KISS live-aboard trip in Sound of Mull in 2002, it was determined that the concept worked so the next version was the KISS-HH. I gave the set to a friend to use with his Dolphin CCR, but don't think he did anything with it.

I don't remember taking any close up pictures of the board and/or internal parts, so the only pictures close to what you want are the ones on Kevin Juergensen's website.

[SINUS]

Quote: (Originally Posted by decoweenie)

There was only one SMA-1 set ever made, and it was for me.

After test dived it during a KISS live-aboard trip in Sound of Mull in 2002, it was determined that the concept worked so the next version was the KISS-HH. I gave the set to a friend to use with his Dolphin CCR, but don't think he did anything with it.

I don't remember taking any close up pictures of the board and/or internal parts, so the only pictures close to what you want are the ones on Kevin Juergensen's website.

Thanks, Decoweenie,

I am really surprise you are the only SMA-1 user in the world. Kevin is still advertising his unit , though his pictures is not clear at all.. I beleive it is based on old technology that require many batteries to operate it. Thanks again Decoweenie.


Regards,
Wei lan

[decoweenie]

I am not a "user" of the SMA-1 in the sense that you are thinking.

The SMA-1 was a prototype and made because I harrassed Kevin for a long time to implement the Smithers-Juergensen digital electronic for the MK-15 to be used on the Classic-KISS.

At the time, I was diving the MK-15 and crash-testing new versions of the S/J electronic along with other people like Christina Young, etc. So it was logical to try to "port" the electronic over to the KISS.

So, I got the housing made from a light manufacturer with the necessary switches/connectors, and Kevin to install the electronic. The input was a single R22D sensor installed in the inhalation CL via P-port. PO2 monitoring was from the standard 3 KISS displays. Solenoid was mounted high in the back so I could monitor it from sound. As said, it was a prototype to test a concept...

The battery arrangement was necessary since the solenoid used the original MK-15 solenoid which requires high driving voltage.

Kevin went ahead and "advertise" it, but he has no plan to sell the SMA-1 any longer. I am not sure he will even continue to sell the KISS-HH (?)

[SINUS]

[quote=decoweenie]I am not a "user" of the SMA-1 in the sense that you are thinking.

The SMA-1 was a prototype and made because I harrassed Kevin for a long time to implement the Smithers-Juergensen digital electronic for the MK-15 to be used on the Classic-KISS.


Thanks, for the history input on your SMA-1 controller, interesting indeed. So, it"s a prototype and a customised unit derived from MK-15 electronic. Cool......


Best regards,
Wei lan


"Silent Is Always Beautiful"

[decoweenie]

Quote: (Originally Posted by SINUS)

So, it"s a prototype and a customised unit derived from MK-15 electronic.

Just clarification:

... derived from third-party after-market electronic for the refurbished MK-15 units.

[iain-hsm]

Quote: (Originally Posted by SINUS)

Hi, folks,

Can any one of you out there posts a couple of close-up shots of the SMA-1 electronic board? I need it for my Rebreather's electronic collection archives. I have been collecting a number of Rb's electronics pictures from various webs (DIY & FACTORY MADE). I think the HammerHead has the best electronic board around. ThanksRegards,
Wei lan

Wei
Another board for your collection. The photo is of a military version of our PPo2 PPC02 controller. At present we are working on EN14143 requirements to get commercial clearance.

The logging program logs 15 items of data every 0.1 min including dive time depth (190MSW) Oxgen average (3 or 5 sensors) PPC02 and C02 raw data
For the military SAD (safe accent depth) and RTS (return to surface time) was added.
The dive program for Mil spec was VVAL21 (minus the latest calcs, but N values were made available) Also a DECAP program version was available with standard values and variants. +/- 2 minutes maximum deviation fron the typical published USN tables.

I dare say for commercial use we will have to use public domain variants as repetative multi level profiles with the military may not be valid.

The finished units are in three parts and are of course sealed and potted for 190 msw 600 fsw. Wrist display, shoulder unit (inhale side) and a battery box containing three 3.6v batteries (2 standby)

Regards

Iain Middlebrook

[SINUS]

Quote: (Originally Posted by iain-hsm)

Wei
Another board for your collection. The photo is of a military version of our PPo2 PPC02 controller. At present we are working on EN14143 requirements to get commercial clearance.


Regards

Iain Middlebrook

Hi Iain,

Thank you very much for the HSM ppo2 controller electronic boards pic, and also I aplogise for the very late respond to your posting, Sorry! Iain. ( no idea how I missed that!).

May I ask, what is the output voltage from the solenoid driver?

When the HSM controller will be available to the dive industries? and at what cost per unit?


Best regards,

Wei lan,

[JonnyB]

Quote: (Originally Posted by decoweenie)

I am not sure he will even continue to sell the KISS-HH (?)

Why is this? I was hoping to get the HH for my KISS someday...

/Jonny

[iain-hsm]

Quote: (Originally Posted by SINUS)

Hi Iain,

Thank you very much for the HSM ppo2 controller electronic boards pic, and also I aplogise for the very late respond to your posting, Sorry! Iain. ( no idea how I missed that!).

May I ask, what is the output voltage from the solenoid driver?

When the HSM controller will be available to the dive industries? and at what cost per unit?


Best regards,

Wei lan,

Wei.
Solenoid output voltage is dependent on the type of solenoid and the application, NO/NC pressure drop and flow. Most of the sports units you will see work either 6 or 12 volts. The battery life however is very dependent on the type used. The small commercial 6 volt types pull around 1/2 amp to 1/3 amp at 12 volt so battery life is very limited. Current military requirements require only a few micro amps pull at 12 volts but EMI noise and RF restrictions limited us to an odd type of piezo electric variant valve. Battery life however with only a micro amp draw is considerably longer.
As for available to the dive industry I cant give an answer At present all is dependent on contracts and it would not be my call on what type of controller the suppliers want.
As for price again this would depend on the full specification. Biggest cost variants at the moment is the case material and finish. Aluminium vs Titanium, Hard anodise vs teflon coat. Against using a potted urathane and a moulded polymer. Also the choice and type of type of cable, (wrist to controller, controller to sensors) is a big difference in price. Mil spec cable is £5000 (minimum run) and the type of connectors mil spec ROV type bulkhead connectors or poke it down a interstage whip. Ball park full mil spec unit is 4000 euro. Iain