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Dräger Dolphin / Ray Rebreathers: Discuss Flow Meters in the Rebreathers - Unit Specific forums: HI all, how accurate is the Drager Flow meter, I don't seem to get the flow rates which the ...

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Old 20-05-07, 09:53 PM
Andy (Apsman) Barker Andy (Apsman) Barker is offline
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Flow Meters
HI all,
how accurate is the Drager Flow meter, I don't seem to get the flow
rates which the manual states, any throughts???
Andy
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Old 20-05-07, 09:57 PM
wills wills is offline
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Quote:
Originally Posted by Andy (Apsman) Barker
I don't seem to get the flow
rates which the manual states, any throughts???
Andy
If ALL the jets are wrong it could be either the flow meter or the 1st stage - what IP have you got on the 1st stage? what does your other flow meter read if you have the 32/40 50/60 split?
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Old 21-05-07, 01:12 PM
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Neil McLeod Neil McLeod is online now
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When all is correct then you get the right reading.
I had similar problem with too high a reading. May be IP as stated or the Bypass (2nd stage - ADV) may be opening when it shouldn't allowing a secondary flow. If too low in all jets then IP or if low in only one: partially blocked sonic valve replace it.

see:

2 Flow meters and 1 Draeger question

Neil
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