RonR
Contributor
New to scubaboard, question about new Cobalt computer. We bought 2 for wife and I, and on the second dive her's started acting up. About 15min into the dive, did a pressure check and noticed it read 3000psi. It had read just over that on the start of the dive, we knew something was amiss. She buddied with the DM and kept going for a few minutes checking the readout. It actually started going up, then bouncing around. We were only at 20-30 ft so she ended up surfacing early. Looking at the log you can see it starting to act up going as high as 4500psi or so... then bouncing up and down. Maybe at the end it had a good readout...
Anyway, she did the next dive without her DC and used a set of pressure gauges they had on board. It will be going back to the LDS once we get back from St. John (for warranty fix I assume). Kind of bummed but I work on automotive electronics and understand infant mortality issues can pop up. Hope it all turns out well!
That is definitely one that needs to go back to Atomic. Out of thousands of Cobalts in the field, we have had almost no problems with the high pressure sensor, and those few were not displaying pressure at all when the sensor failed entirely. So we really want to see this- it is possibly a part in the circuit that failed after the initial check and calibration at the factory.
Good on your wife for noticing something was amiss with the pressure reading.
One other thought- if somehow the Cobalt got through without being HP calibrated (seems very unlikely, but...), that could explain the erratic pressure readings. PM me if you want instructions on how to check the calibration. It's generally fine to dive the Cobalt without the HP hose attached- no pressure readings, of course, but the computer functions will work.
Ron
Last edited: