I'm afraid I'm gonna make the world all bad again ... can't be helped.
Quote: (Originally Posted by
warjarrett)
... I was taught to ask questions, think for myself ...
Then why don't you try the other way round for a change?
Think
first, then ask questions. May actually answer the question before you ask it.
Especially when the answer is obvious. Not many people here enjoy arguing for arguments sake.
Not many people try hard to engage in absolutely pointless discussions.
Quote:
Leaving the secondary on position 2 was covered on the first day of my training.
And it never occured to you there's a reason for that?
Never occured occured to you that there's a reason that is mentioned repeatedly
in the manual?
That it is a manufacturer's recommendation?
Quote:
... and continue to grow in my understanding of safety and equipment maintenance
What understanding? All I see is either lack of understanding, pigheadedness or trolling.
Quote:
So, yes, if the secondary gets jostled, its mechanism is better protected from damage in one of the three positions 1, 2 or 3. There is NO REASON to always leave it on 2.
You got one part right, the mechanism is
better protected, not protected.
Even on a sensor setting the gauge
can be damaged, though chances are considerably reduced.
The reason for leaving it in position #2 was given in the second post of this thread.
Quote:
Position 1 or 3 is just as good for protection, and changing this position occasionally will allow you to more evenly age the sensors, without having to switch sensors around inside the head.
As long as the dial stays in that position, yes. But dials can be inadvertedly moved, between positions the current will be cut, in position S and B there will only be a current if the unit is powered up.
There is no need to "age" the sensors evenly. Has been pointed out before in this thread, too.
Quote:
But my slightly greater knowledge now (compared to graduation day), that I have achieved from continuing to think for myself AFTER training AGREES with Chett's suggestion: as long as you are only storing the rebreather, there is no reason to stress an oxygen sensor by leaving one under load from the secondary.
Judging by your wrongful conclusion not much of an achievement. Chett didn't make the suggestion to do this, he asked if it was best to leave the gauge reading a sensor if stored safely. So far you seem to be the only one who has achieved the infinite wisdom to consider that a great idea.
Maybe set aside your own greater knowledge for a moment and consider that many PRISM divers/owners/instructors/ex-employees/manufacturer have more knowledge coming from their experiences.
You trained with Matt, haven't you?
Ask him how many damaged secondaries he has experienced, and how long in his experience it takes to get it fixed.
You know Robert, ask him how many damaged secondaries he's come across.
These are good people, Warren, learn from their experiences.
Quote:
There is very good reason to switch the secondary to S, if the unit is to be stored for a while. Just dont forget to switch it to a sensor position before transporting it.
No, really, there isn't. On the other hand you gave a good reason not to in your 2nd sentence there.
Sensor aging has been covered.
Financial and supply consideration have been covered.
Bad experiences have been covered.
It's an essential part of a live support system, don't gamble with it.
Besides, I've been hurled out of bed by a quake once, safe storage in CA seems to be a very relative term.
Quote:
Now, does anyone really disagree with this?
Well, obviously I do, and I'm rather sure I'm not the only one.
The previous replies oughta be an indication. If there aren't any more in support of post #2,
it probably has little to do with disagreement and a lot with useless debate.