Hi,
the nitecore SRT7 is diving capable, up to 40 m deeph.. or should be
Mine is completely NOT waterproof, it´s a production error..
The thread of the head is probably not milled correct.. or you can screw in the tube to much..
If the tube is screwed to the head completely(necessary to get contact), the sealing ring (between head and tube) is not sealing any more. Unscrewing it a bit --> seals perfect.
Without battery cap and battery, you can under-pressure or over-pressure the lamp (tube) with your mouth.. you feel that air is going through.
Pictures show the exact location, where sealing is not working.. (making lamp wet from outside.. you can see bubbles coming out above this position)
http://imageshack.com/a/img538/8342/47thuy.jpg
The thread from the head has some notches. This is usual and seems to be necessary to get the electronic board inside..
The Problem seems to be, that, at this notch, the sealing ring seems to be pushed to hard against --> no sealing.
One solution could be, to screw in an exact metall ring/spacer.. so that the tube can´t be screwed in to far and electronic contact would still exist..
If you have a nitecore from this series, you could check it the same way. My other nitecore SRT6 has no problems.
If you check it, i would suggest to clean the aluminium tube from the aluminium-dust-lube a bit.. aluminium seems to cause alzheimer..
Yeah, i am glad that i found this out, before diving.. else it would destroy the battery, electronics..
I have warranty (amazon), and i will replace the lamp..
Just wanted to inform you.. this production error could occour more than only at my lamp.
--- edit ---
I measured with a pushed teach, to check if the silicon seal really touches the notch. --> NO, it doesn´t!
I double checked it with silicone grease:
http://imageshack.com/a/img745/7513/5yyoCt.jpg
The sealing ring goes only to this position.. this is the bottom line of the silicone grease.
The notch is not the problem.
In my opinion, the only thing that could now still be, is that the tube is not centered in the middle, when it is screwed to the head completely.
I tested: While not screwed completely (sealed), i pushed the tube relative to the head, to the side.
I was able to make it unseal, from any side (you hear that ear is coming out from other directions, depending in witch direction you push).
Just "kinking" is not enough at my lamp, you really have to push it "parallel" to the side.
The tube could be not centered, cause of:
- a bad billing of the head / tube (i should test it with the tube of the srt6, wich i don´t have, now)
- a not plane lying electronic board (i see noticeably more scratches from the tube on the platine, from the one side, where it´s not sealed)
the nitecore SRT7 is diving capable, up to 40 m deeph.. or should be
Mine is completely NOT waterproof, it´s a production error..
The thread of the head is probably not milled correct.. or you can screw in the tube to much..
If the tube is screwed to the head completely(necessary to get contact), the sealing ring (between head and tube) is not sealing any more. Unscrewing it a bit --> seals perfect.
Without battery cap and battery, you can under-pressure or over-pressure the lamp (tube) with your mouth.. you feel that air is going through.
Pictures show the exact location, where sealing is not working.. (making lamp wet from outside.. you can see bubbles coming out above this position)
http://imageshack.com/a/img538/8342/47thuy.jpg
The thread from the head has some notches. This is usual and seems to be necessary to get the electronic board inside..
The Problem seems to be, that, at this notch, the sealing ring seems to be pushed to hard against --> no sealing.
One solution could be, to screw in an exact metall ring/spacer.. so that the tube can´t be screwed in to far and electronic contact would still exist..
If you have a nitecore from this series, you could check it the same way. My other nitecore SRT6 has no problems.
If you check it, i would suggest to clean the aluminium tube from the aluminium-dust-lube a bit.. aluminium seems to cause alzheimer..
Yeah, i am glad that i found this out, before diving.. else it would destroy the battery, electronics..
I have warranty (amazon), and i will replace the lamp..
Just wanted to inform you.. this production error could occour more than only at my lamp.
--- edit ---
I measured with a pushed teach, to check if the silicon seal really touches the notch. --> NO, it doesn´t!
I double checked it with silicone grease:
http://imageshack.com/a/img745/7513/5yyoCt.jpg
The sealing ring goes only to this position.. this is the bottom line of the silicone grease.
The notch is not the problem.
In my opinion, the only thing that could now still be, is that the tube is not centered in the middle, when it is screwed to the head completely.
I tested: While not screwed completely (sealed), i pushed the tube relative to the head, to the side.
I was able to make it unseal, from any side (you hear that ear is coming out from other directions, depending in witch direction you push).
Just "kinking" is not enough at my lamp, you really have to push it "parallel" to the side.
The tube could be not centered, cause of:
- a bad billing of the head / tube (i should test it with the tube of the srt6, wich i don´t have, now)
- a not plane lying electronic board (i see noticeably more scratches from the tube on the platine, from the one side, where it´s not sealed)
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