Problems with HS Explorer

diverrob · 25th January 2006, 02:22

I did put this thread out there a while back but the problem has poped up again. Below is a descroption of the problem. Comments are welcome, thanks

I have the Explorer model "O" and I am experiencing some difficulties with getting it to read the O2 sensor following a dive that had me switching gasses, let me explain if I can. Yesterday I did a dive to 98' for 31 min on my CCR the computer was set to mix 0 and CF 1 battery voltage did not drop below 3.4V. At the end of that dive I wanted to practice some OC bailout drills. I went to OC and then switched the Explorer to OC 50% and finished the dive on OC 50%. The next day I was ready to get in the water and realized that I had not switched the Explored back to mix 0. I switched the Explored to mix 0 and went through the calibration sequence (the explorer is set to calibrate to 98%). During the calibration I noted that the voltage was 62mv instead of the regular 50mv I made a mental note and proceeded with my pre-dive breath. As my other display started to drop off to 0.75 I saw that the Explorer was still reading 0.9. At this point I realized something was wrong and cancelled the dive. Once at home I downloaded the computer to my PC and reset the mix table using the PC and hooked everything back up to the Rebreather and now the Explorer works as is should. This is the second time this has happened to me so I was hoping you could shed some light on the situation. Thanks

Rob

dive2dive2000 · 25th January 2006, 03:03

Quote: (Originally Posted by diverrob)

I did put this thread out there a while back but the problem has poped up again. Below is a descroption of the problem. Comments are welcome, thanks

I have the Explorer model "O" and I am experiencing some difficulties with getting it to read the O2 sensor following a dive that had me switching gasses, let me explain if I can. Yesterday I did a dive to 98' for 31 min on my CCR the computer was set to mix 0 and CF 1 battery voltage did not drop below 3.4V. At the end of that dive I wanted to practice some OC bailout drills. I went to OC and then switched the Explorer to OC 50% and finished the dive on OC 50%. The next day I was ready to get in the water and realized that I had not switched the Explored back to mix 0. I switched the Explored to mix 0 and went through the calibration sequence (the explorer is set to calibrate to 98%). During the calibration I noted that the voltage was 62mv instead of the regular 50mv I made a mental note and proceeded with my pre-dive breath. As my other display started to drop off to 0.75 I saw that the Explorer was still reading 0.9. At this point I realized something was wrong and cancelled the dive. Once at home I downloaded the computer to my PC and reset the mix table using the PC and hooked everything back up to the Rebreather and now the Explorer works as is should. This is the second time this has happened to me so I was hoping you could shed some light on the situation. Thanks

Rob

Rob,
Some times

, more often than some would like, the Explorer when run on RGBM will go out of whack (not program literate please excuse layman terms). when resetting mix tables it will usually fix itself. If not it needs to be sent back.

Gene has come out with a new up grade and have not had any problems since. Check the web site and then check your computer, I highly recommend the latest update. The main causes of RGBM Explorer problems are doing something in a dive profile that does not coincide with an RGBM dive profile. Example multiple gases switches. Not saying it is wrong, just saying does not coincide with an RGBM profile. The pro to a true RGBM computer shorter healthier deco profiles that will match RGBM hard tables.

The cons, very little tolerance as far as the computer is concerned.

diverrob · 25th January 2006, 04:09

Thanks for the inside info. I did talk to Gene today and he can't quite explain it for now. He wants to see if I can reproduce it and then send the unit back to him so he can analyze it. I plan to try this on the weekend and go from there. I will also try to use a different table to see if your info helps as well. Thanks for the ideas.

Rob

***jradomski*** · 27th January 2006, 16:29

Quote: (Originally Posted by diverrob)

Thanks for the inside info. I did talk to Gene today and he can't quite explain it for now. He wants to see if I can reproduce it and then send the unit back to him so he can analyze it. I plan to try this on the weekend and go from there. I will also try to use a different table to see if your info helps as well. Thanks for the ideas.

Rob

Rob,
What version of the software do you have.. It looks like he may have fixed it

4.07.7corrected O2 cell overwrite on startup, O2 cell off when exiting PPO2 Mode, corrected BT display bug

diverrob · 29th January 2006, 18:23

I just go this back from Gene at HSE, I thought I should post it incase anyone has the same problem.

Rob,

Thank you for the problem report. We found two issues (1) When the dive closed out you were in open circuit mode and the PPO2 mode variable was set to off so the Explorer defaulted to open circuit Mix 1. (2) Because the PPO2 mode variable was off, it would not read the O2 cell. The work-around with your unit is you turn the PPO2 mode OFF then ON on Mix 0 the PPO2 variable will be set and it will operate correctly. You don't need to do the download to get the variable to reset. We have changed the shutdown process so the unit will go to Mix 0 if the dive started CC, and Mix 1 if the dive started OC. Even if you finish the dive in Mix 7, it will close the dive and go to Mix 0 if you were diving CC. In any case the cell will be read.

Yes, you found a problem and we have corrected it. Thank you again. Send you Explorer in and we will upgrade it.

Best regards,

Gene

diverrob · 2nd February 2006, 00:32

I thought I would let anyone who cares know that the fix Gene said to try worked great. I duplicated the problem in the chamber a work and was able to get the unit to read the cell without downloading it to my PC. Thanks Gene!

Rob

25th January 2006, 02:22	#1 (permalink)
diverrob The Evolution of Diving Current Rebreather/s: Evolution Other SCR Other Rebreather/s: Not Bought Yet Other SCR Join Date: May 2005 Location: Victoria BC Canada Posts: 349	Problems with HS Explorer I did put this thread out there a while back but the problem has poped up again. Below is a descroption of the problem. Comments are welcome, thanks I have the Explorer model "O" and I am experiencing some difficulties with getting it to read the O2 sensor following a dive that had me switching gasses, let me explain if I can. Yesterday I did a dive to 98' for 31 min on my CCR the computer was set to mix 0 and CF 1 battery voltage did not drop below 3.4V. At the end of that dive I wanted to practice some OC bailout drills. I went to OC and then switched the Explorer to OC 50% and finished the dive on OC 50%. The next day I was ready to get in the water and realized that I had not switched the Explored back to mix 0. I switched the Explored to mix 0 and went through the calibration sequence (the explorer is set to calibrate to 98%). During the calibration I noted that the voltage was 62mv instead of the regular 50mv I made a mental note and proceeded with my pre-dive breath. As my other display started to drop off to 0.75 I saw that the Explorer was still reading 0.9. At this point I realized something was wrong and cancelled the dive. Once at home I downloaded the computer to my PC and reset the mix table using the PC and hooked everything back up to the Rebreather and now the Explorer works as is should. This is the second time this has happened to me so I was hoping you could shed some light on the situation. Thanks Rob
(Offline)

25th January 2006, 03:03	#2 (permalink)
dive2dive2000 PRISM DIVER & LUVIN IT! Current Rebreather/s: Prism Topaz Other Rebreather/s: Join Date: Feb 2005 Location: Long Island, NY Posts: 796	Re: Problems with HS Explorer Quote: (Originally Posted by diverrob) I did put this thread out there a while back but the problem has poped up again. Below is a descroption of the problem. Comments are welcome, thanks I have the Explorer model "O" and I am experiencing some difficulties with getting it to read the O2 sensor following a dive that had me switching gasses, let me explain if I can. Yesterday I did a dive to 98' for 31 min on my CCR the computer was set to mix 0 and CF 1 battery voltage did not drop below 3.4V. At the end of that dive I wanted to practice some OC bailout drills. I went to OC and then switched the Explorer to OC 50% and finished the dive on OC 50%. The next day I was ready to get in the water and realized that I had not switched the Explored back to mix 0. I switched the Explored to mix 0 and went through the calibration sequence (the explorer is set to calibrate to 98%). During the calibration I noted that the voltage was 62mv instead of the regular 50mv I made a mental note and proceeded with my pre-dive breath. As my other display started to drop off to 0.75 I saw that the Explorer was still reading 0.9. At this point I realized something was wrong and cancelled the dive. Once at home I downloaded the computer to my PC and reset the mix table using the PC and hooked everything back up to the Rebreather and now the Explorer works as is should. This is the second time this has happened to me so I was hoping you could shed some light on the situation. Thanks Rob Rob, Some times, more often than some would like, the Explorer when run on RGBM will go out of whack (not program literate please excuse layman terms). when resetting mix tables it will usually fix itself. If not it needs to be sent back. Gene has come out with a new up grade and have not had any problems since. Check the web site and then check your computer, I highly recommend the latest update. The main causes of RGBM Explorer problems are doing something in a dive profile that does not coincide with an RGBM dive profile. Example multiple gases switches. Not saying it is wrong, just saying does not coincide with an RGBM profile. The pro to a true RGBM computer shorter healthier deco profiles that will match RGBM hard tables. The cons, very little tolerance as far as the computer is concerned. __________________ Safe Diving, Martin
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25th January 2006, 04:09	#3 (permalink)
diverrob The Evolution of Diving Current Rebreather/s: Evolution Other SCR Other Rebreather/s: Not Bought Yet Other SCR Join Date: May 2005 Location: Victoria BC Canada Posts: 349	Re: Problems with HS Explorer Thanks for the inside info. I did talk to Gene today and he can't quite explain it for now. He wants to see if I can reproduce it and then send the unit back to him so he can analyze it. I plan to try this on the weekend and go from there. I will also try to use a different table to see if your info helps as well. Thanks for the ideas. Rob
(Offline)

27th January 2006, 16:29	#4 (permalink)
*jradomski* Moderator Current Rebreather/s: Inspiration Classic Sport Kiss Optima rEvo Other CCR Other Rebreather/s: Inspiration Vision Evolution Megalodon Classic Kiss rEvo Other CCR Join Date: Mar 2005 Location: "Da" Bronx Posts: 3,113	Re: Problems with HS Explorer Quote: (Originally Posted by diverrob) Thanks for the inside info. I did talk to Gene today and he can't quite explain it for now. He wants to see if I can reproduce it and then send the unit back to him so he can analyze it. I plan to try this on the weekend and go from there. I will also try to use a different table to see if your info helps as well. Thanks for the ideas. Rob Rob, What version of the software do you have.. It looks like he may have fixed it 4.07.7corrected O2 cell overwrite on startup, O2 cell off when exiting PPO2 Mode, corrected BT display bug __________________ Joe Radomski CCR Trimix Instructor Trainer ANDI Instructor Trainer Director #10 All posts are personal opinions and DO NOT reflect any affiliated agency unless specifically stated.
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29th January 2006, 18:23	#5 (permalink)
diverrob The Evolution of Diving Current Rebreather/s: Evolution Other SCR Other Rebreather/s: Not Bought Yet Other SCR Join Date: May 2005 Location: Victoria BC Canada Posts: 349	Re: Problems with HS Explorer I just go this back from Gene at HSE, I thought I should post it incase anyone has the same problem. Rob, Thank you for the problem report. We found two issues (1) When the dive closed out you were in open circuit mode and the PPO2 mode variable was set to off so the Explorer defaulted to open circuit Mix 1. (2) Because the PPO2 mode variable was off, it would not read the O2 cell. The work-around with your unit is you turn the PPO2 mode OFF then ON on Mix 0 the PPO2 variable will be set and it will operate correctly. You don't need to do the download to get the variable to reset. We have changed the shutdown process so the unit will go to Mix 0 if the dive started CC, and Mix 1 if the dive started OC. Even if you finish the dive in Mix 7, it will close the dive and go to Mix 0 if you were diving CC. In any case the cell will be read. Yes, you found a problem and we have corrected it. Thank you again. Send you Explorer in and we will upgrade it. Best regards, Gene
(Offline)

2nd February 2006, 00:32	#6 (permalink)
diverrob The Evolution of Diving Current Rebreather/s: Evolution Other SCR Other Rebreather/s: Not Bought Yet Other SCR Join Date: May 2005 Location: Victoria BC Canada Posts: 349	Re: Problems with HS Explorer I thought I would let anyone who cares know that the fix Gene said to try worked great. I duplicated the problem in the chamber a work and was able to get the unit to read the cell without downloading it to my PC. Thanks Gene! Rob
(Offline)

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