Horrible Service from Dive Rite

divedog · 30th April 2006, 19:30

Hello list. Reading this thread about the depth sensor being off I had to reply because I had a similair problem. Last year A friend of mine and myself both purchased a Hammer Head from Kevin for our Inspirations. After diving we both noticed that the depth was way off from our other guages. I used both the VR3 and a Uwatec timer for comparison. Both the Uwatec and the VR3 were almost identical but the HH depth was sometimes off by 20 feet. Usually the deeper we were the greater the difference. At the time I even brought a slate with me and notated the difference every 10 feet. My friend had the same problem with his HH also and used another dive timer to compare but I dont remember which one he used. I called Kevin and he advised me it was probably an issue with the origional instalation of the sensor being installed either to tight in the housing or, more probable, that it is just a bad sensor. I sent back the HH and tried again comparing the HH again to the VR3 and the Uwatec. NO PROBLEMS. The sensor on the HH was the same. I do not have a OPTIMA however I can suspect that the OPTIMA electronics is probably the same or similiar to the HH. You might be having the same problems with the sensor as I had. Having met Kevin several times and doing business with him aver the years I can tell you that his electronics are outstanding and his service while sometimes slow is also outstanding. I have since upgraded to the new Vision electronics but I loved the HH when I had it and only had the one problem with the depth sensor which he fixed in a timely manner. I am sure Kevin will fix your problem.

Regards,
Steve Cooper

***jradomski*** · 30th April 2006, 23:05

Quote: (Originally Posted by divedog)

Hello list. Reading this thread about the depth sensor being off I had to reply because I had a similair problem. Last year A friend of mine and myself both purchased a Hammer Head from Kevin for our Inspirations. After diving we both noticed that the depth was way off from our other guages. I used both the VR3 and a Uwatec timer for comparison. Both the Uwatec and the VR3 were almost identical but the HH depth was sometimes off by 20 feet. Usually the deeper we were the greater the difference. At the time I even brought a slate with me and notated the difference every 10 feet. My friend had the same problem with his HH also and used another dive timer to compare but I dont remember which one he used. I called Kevin and he advised me it was probably an issue with the origional instalation of the sensor being installed either to tight in the housing or, more probable, that it is just a bad sensor. I sent back the HH and tried again comparing the HH again to the VR3 and the Uwatec. NO PROBLEMS. The sensor on the HH was the same. I do not have a OPTIMA however I can suspect that the OPTIMA electronics is probably the same or similiar to the HH. You might be having the same problems with the sensor as I had. Having met Kevin several times and doing business with him aver the years I can tell you that his electronics are outstanding and his service while sometimes slow is also outstanding. I have since upgraded to the new Vision electronics but I loved the HH when I had it and only had the one problem with the depth sensor which he fixed in a timely manner. I am sure Kevin will fix your problem.

Regards,
Steve Cooper

Which handset did you have?? there is a big differance if it is the AL housed units or the acrylic units.. The acrylic units had a different transducer than the current ones.. The original required calibration by JM and the AL units do not..
There were a few issues with installing the new transducers, but that should have never made it to any optima users..

sensor330 · 30th April 2006, 23:20

Quote: (Originally Posted by ScubaDadMiami)

Meanwhile I discovered other issues with the hand sets. First, I could not get my computer handset to go to sleep. (This was not a big deal for individual day dives. However, I have a live aboard trip coming soon, and I will need to be able to change batteries on this trip without losing my prior tissue loading data.) Next, I almost never had one sensor with the same PPO2 on both handsets (after proper calibration); the spread would often be quite considerable.

Then, a more pressing issue arose. I found that the depth reading on both of my handsets was off by several feet. This meant that my decompression profile and my PPO2 were incorrect for all my dives. I needed to have the handsets changed right away. It was no longer a question of cosmetics or convenience.

Hello

I've got a handsets from the first batch as well and I also experienced similar troubles that your having. Kevin sent me SS bezels and that solved the problem with the depth sensors. Haven't had a problem since.

What kind on PO2 readings are you seeing? On mine it not unusual for me to see a .08 difference between them. As long as you are not getting a cell voted out and everything checks out (dil flush) the voting logic on the HH will have your actual PO2 within .02. When planning your dives you should be accounting for .05 variance anyway.

Maybe I misunderstood but the depth sensor and PO2 readings work independently. So even if your depth sensor is out 100ft your PO2 will still be OK. Somebody correct me if I'm wrong.

Scott

***jradomski*** · 1st May 2006, 02:13

Quote: (Originally Posted by sensor330)

Maybe I misunderstood but the depth sensor and PO2 readings work independently. So even if your depth sensor is out 100ft your PO2 will still be OK. Somebody correct me if I'm wrong.

Scott

You are correct the depth and po2 is totally independent.. PO2 is strictly based on voltage readings..

As to po2 readings a small spread should be expected, a .05 variance is more than acceptable.. The cells will all have slightly different reaction times and isn't reading the exact same gas.. There is a spread in the sensors plus therought the dive there will be varying amounts of moisture on the individual cell faces....

The HH bases its PO2 on an average of all 3 cells (unless a specific cell gets voted out), for setpoint control and for deco requirements.

30th April 2006, 19:30	#21 (permalink)
divedog New Member Current Rebreather/s: Inspiration Classic Sport Kiss Other CCR Other Rebreather/s: Other CCR Join Date: Jan 2006 Location: california Posts: 13	Re: Horrible Service from Dive Rite Hello list. Reading this thread about the depth sensor being off I had to reply because I had a similair problem. Last year A friend of mine and myself both purchased a Hammer Head from Kevin for our Inspirations. After diving we both noticed that the depth was way off from our other guages. I used both the VR3 and a Uwatec timer for comparison. Both the Uwatec and the VR3 were almost identical but the HH depth was sometimes off by 20 feet. Usually the deeper we were the greater the difference. At the time I even brought a slate with me and notated the difference every 10 feet. My friend had the same problem with his HH also and used another dive timer to compare but I dont remember which one he used. I called Kevin and he advised me it was probably an issue with the origional instalation of the sensor being installed either to tight in the housing or, more probable, that it is just a bad sensor. I sent back the HH and tried again comparing the HH again to the VR3 and the Uwatec. NO PROBLEMS. The sensor on the HH was the same. I do not have a OPTIMA however I can suspect that the OPTIMA electronics is probably the same or similiar to the HH. You might be having the same problems with the sensor as I had. Having met Kevin several times and doing business with him aver the years I can tell you that his electronics are outstanding and his service while sometimes slow is also outstanding. I have since upgraded to the new Vision electronics but I loved the HH when I had it and only had the one problem with the depth sensor which he fixed in a timely manner. I am sure Kevin will fix your problem. Regards, Steve Cooper
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30th April 2006, 23:05	#22 (permalink)
*jradomski* Moderator Current Rebreather/s: Inspiration Classic Sport Kiss Optima rEvo Other CCR Home Build Other Rebreather/s: Inspiration Vision Evolution Megalodon Classic Kiss rEvo Other CCR Home Build Join Date: Mar 2005 Location: "Da" Bronx Posts: 2,889	Re: Horrible Service from Dive Rite Quote: (Originally Posted by divedog) Hello list. Reading this thread about the depth sensor being off I had to reply because I had a similair problem. Last year A friend of mine and myself both purchased a Hammer Head from Kevin for our Inspirations. After diving we both noticed that the depth was way off from our other guages. I used both the VR3 and a Uwatec timer for comparison. Both the Uwatec and the VR3 were almost identical but the HH depth was sometimes off by 20 feet. Usually the deeper we were the greater the difference. At the time I even brought a slate with me and notated the difference every 10 feet. My friend had the same problem with his HH also and used another dive timer to compare but I dont remember which one he used. I called Kevin and he advised me it was probably an issue with the origional instalation of the sensor being installed either to tight in the housing or, more probable, that it is just a bad sensor. I sent back the HH and tried again comparing the HH again to the VR3 and the Uwatec. NO PROBLEMS. The sensor on the HH was the same. I do not have a OPTIMA however I can suspect that the OPTIMA electronics is probably the same or similiar to the HH. You might be having the same problems with the sensor as I had. Having met Kevin several times and doing business with him aver the years I can tell you that his electronics are outstanding and his service while sometimes slow is also outstanding. I have since upgraded to the new Vision electronics but I loved the HH when I had it and only had the one problem with the depth sensor which he fixed in a timely manner. I am sure Kevin will fix your problem. Regards, Steve Cooper Which handset did you have?? there is a big differance if it is the AL housed units or the acrylic units.. The acrylic units had a different transducer than the current ones.. The original required calibration by JM and the AL units do not.. There were a few issues with installing the new transducers, but that should have never made it to any optima users.. __________________ 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.
(Online)

30th April 2006, 23:20	#23 (permalink)
sensor330 Custom Title Allowed! Current Rebreather/s: Megalodon Other Rebreather/s: Not Bought Yet Inspiration Classic Join Date: Feb 2005 Location: Victoria, British Columbia, Canada Posts: 561	Re: Horrible Service from Dive Rite Quote: (Originally Posted by ScubaDadMiami) Meanwhile I discovered other issues with the hand sets. First, I could not get my computer handset to go to sleep. (This was not a big deal for individual day dives. However, I have a live aboard trip coming soon, and I will need to be able to change batteries on this trip without losing my prior tissue loading data.) Next, I almost never had one sensor with the same PPO2 on both handsets (after proper calibration); the spread would often be quite considerable. Then, a more pressing issue arose. I found that the depth reading on both of my handsets was off by several feet. This meant that my decompression profile and my PPO2 were incorrect for all my dives. I needed to have the handsets changed right away. It was no longer a question of cosmetics or convenience. Hello I've got a handsets from the first batch as well and I also experienced similar troubles that your having. Kevin sent me SS bezels and that solved the problem with the depth sensors. Haven't had a problem since. What kind on PO2 readings are you seeing? On mine it not unusual for me to see a .08 difference between them. As long as you are not getting a cell voted out and everything checks out (dil flush) the voting logic on the HH will have your actual PO2 within .02. When planning your dives you should be accounting for .05 variance anyway. Maybe I misunderstood but the depth sensor and PO2 readings work independently. So even if your depth sensor is out 100ft your PO2 will still be OK. Somebody correct me if I'm wrong. Scott
(Offline)

1st May 2006, 02:13	#24 (permalink)
*jradomski* Moderator Current Rebreather/s: Inspiration Classic Sport Kiss Optima rEvo Other CCR Home Build Other Rebreather/s: Inspiration Vision Evolution Megalodon Classic Kiss rEvo Other CCR Home Build Join Date: Mar 2005 Location: "Da" Bronx Posts: 2,889	Re: Horrible Service from Dive Rite Quote: (Originally Posted by sensor330) Maybe I misunderstood but the depth sensor and PO2 readings work independently. So even if your depth sensor is out 100ft your PO2 will still be OK. Somebody correct me if I'm wrong. Scott You are correct the depth and po2 is totally independent.. PO2 is strictly based on voltage readings.. As to po2 readings a small spread should be expected, a .05 variance is more than acceptable.. The cells will all have slightly different reaction times and isn't reading the exact same gas.. There is a spread in the sensors plus therought the dive there will be varying amounts of moisture on the individual cell faces.... The HH bases its PO2 on an average of all 3 cells (unless a specific cell gets voted out), for setpoint control and for deco requirements. __________________ 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. Last edited by jradomski : 1st May 2006 at 02:20.
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