RESET DURING DIVE
Date: April 12, 2014 01:15PM
OSTC3 S/N 2176 Firmware Version 1.22
I bought a OSTC3 and did a couple of shallow dives in the UK, both CCR and OC. Original Battery, showing 25% remaining, strangely this 25% remaining did not change during these two initial dives nor the subsequent 3 dives in the Red Sea. It performed fine.
I have just returned(11 April 2014) from the Red Sea where on dive 3 of the trip it reset completely during a dive losing all deco information, history of that dive and all of the logbook. It started a new dive underwater. It had retained the set up data, it still showed CCR mode, 32% DIL and the correct set points. On surfacing I checked for any water ingress(none found) and fitted a new battery (SAFT LS 14500) and performed a battery reset. The OSTC3 then performed OK to date(17 dives). On fitting the new battery it initially showed 100% remaining but within a few seconds went to 75%. Since then the battery remaining has decreased as I might expect and now stands at 67%.
The dive on which it failed went like this.
Enter water, OSTC3 switched on OK working fine. Spent 10 minutes descending and looking at the coral at around 20m. Set Point switch OK. Came to a ridge and started to ascend, checked OSTC3 and seemed fine and agreed with the deco info on the APD Vision I was using. Got to the top of the ridge around 7m, checked the OSTC3 to find it had reset to a new dive and the depth indicated was changing rapidly. I reverted to the APD deco computer for the rest of the dive. After the reset I decended the ridge to about 14m and completed the dive.
Attached are photos of the log pages. This dive is still on the OSTC3 but unfortunately has been over-writen on the APD Vision so I cannot send you details to compare. I still have the original battery if you need it, and/or the OSTC3, to test.
I am not about to take this computer to 50m just yet and reserve the right to return it for a full refund as I consider it to not be of merchantable quality.
I also noticed a screen update fault. If you put in a new battery (SAFT LS 14500) and do a battery reset the displayed battery remaining goes to 100% and then after a few seconds to 75%. However the display reads 75%% (two % symbols). I assume that is just a minor bug in the screen refresh for that field.
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