forum.heinrichsweikamp.com

Hello!

My OSTC3 finally seems to have died on me, after having served for many years faithfully. In the end it only turned on when immersed, otherwise only the red light blinked but the screen never turned on when pressing both buttons. Now it is completely black, even when changing a battery for a new one and it does not turn on even at depth.

Oh well.

I have used the OSTC for the last 12 years as a backup computer on my CCR for which it has suited me well, the computer is not too big (like the Shearwaters) and the screen has still been readable, when needed.

So I am now looking for a new one, and not sure of which one to choose.

The only special requirement is that the computer supports CCR-diving, and is possible with the same feature as the old OSTC3 had, namely being able to set different pO2-values for different depths. I'm diving a VMS Redbare which dynamically increaseses the pO2 to the final value as you go deeper, so the fact that the old OSTC did the same was a perfect match for the Redbare.

Now if I am not mistaken, the new OSTC2 with the hwOS TECH firmware should be able to do this, yes?

Hi,

We'd recommend the OSTC nano for this. It has the same screen size as the OSTC 3, a very robust housing and overall design. In the TECH Version you get all the features you need and we see the OSTC nano beeing used as a CCR backup quite often now.

https://hwdiving.com/produkt/ostc-nano/?lang=en

Here's an image of the OSTC nano next to an old OSTC 3: Regards,
Matthias