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So the WKPP used E/O cords before the HID came along, with the halogen lighting ?? I wasn't aware of that. Any long penetrations, by any team, (Mexico) would be in this same time frame. I'll be damned, you learn something everyday. Hey, can some WKPP confirm this for me ? I don't recall this ever being mentioned in there write-ups, and I can't recall ever seeing any when I was over there.I've done many penetrations requiring several hours to complete. It never occurred to me for the team to use E\O cords in case of bulb failure (?). Should this now become standard practice ??The issue would still remain. "The norm" for HID lighting, according to John Walker, would require this setup. If primary light failure is an issue because of logistics, it should apply to all lighting. If a technique is developed because of design characteristics, it should be stated as such. It does not, and should not, apply to other designs of different origin. Dell Motes Dive Rite 117 W.Washington St. Lake City, Florida 32055 www.dive-rite.com -----Original Message----- From: Kevin Connell <kevin@nw*.co*> To: Dell Motes <dell@di*.co*> Cc: techdiver@Aquanaut.com <techdiver@Aquanaut.com> Date: Thursday, August 05, 1999 11:01 AM Subject: Re: HID Light Question >Dell, I think the WKPP guys carry a backup slug because it would be pretty >uncomfortable doing a 2 hour exit on backup lights for something like a >broken bulb or test tube. > >For normal dives, no backup slug needed. > >At 10:17 AM 8/5/1999 -0400, you wrote: >>I've been diving several different designs of HID for several years now. The >>configuration is the same. One primary HID, two backups on the shoulder >>straps. Why would I need a backup primary / halogen ?? The HID IS LESS >>LIKELY TO FAIL. You are more likely to have difficulty starting the bulb >>when you first get in the water.(Start it before you need it). Once ignited, >>they outperform halogen in every way. If you carry an extra because an E/O >>cord may un-plug, thats' a design characteristic, not " the norm" for HID >>lighting. Was it "the norm" to do this with halogen before HID?? E/O cords >>have been rarely used for this type of diving, for obvious reasons.(Cost >>being one issue) Yes, they require more attention when used in salt water. >>You typically have to keep them lubricated to prevent corrosion or >>oxidation, which makes it easy to accidentally separate them. Cord length is >>determined by a waist mounted light. (Is there another way ;-) A 14 amphr >>pack will burn one for close to 7 hours, a 7 amphr will go 3 hours. With a >>buddy team, the amount of redundancy is still there, without adding more (?) >>gear. >>You want to shoot video, you slap a lumidyne reflector on it that was >>clipped off when not in use. No big deal, highly effective and efficient. >>I don't know about the other manufacturers, our warranty is the same as >>always. We don't warranty any bulb, halogen or otherwise, the electronics >>carry a year from Welch Allyn themselves and us. (Provided there has been NO >>tampering, same other obvious limitations apply). These are not user >>serviceable. When in doubt, LEAVE IT ALONE, and send it back. This will >>maintain your warranty, and you'll be happy. If you don't want to hassle >>with a small shipping charge for a several hundred dollar system, DON'T BUY >>IT. >>Stick with your everyday, garden variety, halogen. >>A word of caution when wiring up an E/O type design. CORRECT POLARITY IS >>VITAL. That is the first thing that will fry a ballast, your done, no >>questions asked. >>In standard lighting, polarity is only an issue when charging. >>Input polarity is crucial in HID. >>Our current design has the ballast integrated in the lid, fully potted to >>help prevent water damage.( This has been highly effective in testing and >>field use). The bulb and ballast are effectively isolated from each other, >>therefore your most likely to have to replace only one of them in the event >>of some type of failure. You bust a lens, chances are the bulb may be the >>only thing compromised. Even then, your bulb may be O.K. as long as there is >>no mechanical damage to it. The power cord design goes along way toward >>preventing water traveling throughout the entire system. >>Dell Motes >>Dive Rite >>117 W.Washington St. >>Lake City, Florida 32055 >>www.dive-rite.com >> >>-----Original Message----- >>From: John Walker <techdive@ea*.ne*> >>To: Dvrcraig@ao*.co* <Dvrcraig@ao*.co*> >>Cc: techdiver@aquanaut.com <techdiver@aquanaut.com> >>Date: Wednesday, August 04, 1999 3:11 PM >>Subject: Re: HID Light Question >> >> >> >Greg, >> > >> > A common practice when diving with a HID is to carry a backup in >> >your pocket. The backup is your typical 50W halogen bulb, socket, test >> >tube with an e/o pig tail. >> > >> > If you are diving in the optimal dive team you should have two other >> >buddys lights brightly glowing while you make a fairly fast switch if >> >such an event should acure. Beside your two buddies light you should >> >also have at least two back up lights,to possibly signal those buddies. >> >This dive team should have a minimum of 9 lights. >> > >> > Until something better comes along this looks as though it will be >> >the norm. You may want to check with the light manufacturer as far as >> >warrenty goes but good luck on the HID units. These seem to be for the >> >big boys with big bucks doing big dives. >> > >> > John >> > >> > >> > >> >Dvrcraig@ao*.co* wrote: >> >> >> >> Since the HID light is not capable of a hot re-strike. What will happen >> >> if you accidentally catch your light cord on something, causing the EO >> >> connector to become unplugged? I imagine you are going to be sitting in >> >> the dark for a while. But what effect will it have on the integrity of >> >> the system particularly in salt water? >> >> >> >> Also since the HID retrofit is using components from other light >> >> manufactures, who covers the warranty issues. Does this modification of >> >> an existing light system void all warranties? All opinons entertained. >> >> >>Craig >> >-- >> >Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. >> >Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. >> > >> >>-- >>Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. >>Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. > >----------------------------------------------- >Kevin Connell <kevin@nw*.co*> > >NW Labor Systems, Inc >http://www.nwls.com > >Who is John Galt? >----------------------------------------------- > -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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