Draeger Ray Tests…

I spend my whole day at work reading the manual. Normally i don’t read the manuals. This time i did it and i really enjoy it.

The Draeger Ray manual is more than complete. They explain everything from the complete assembly and dissasembly of the unit to pre and post dive maintainance and all the risks (and believe me there are a lot).

With the help of the manual i did an initial assembly. Just the tank the first stage regulator and the dosage unit.

First test shows me a flow of 5lt/min. According with the manual i should get 8.25 lt/min +/- 20% this value is out of the range.

Since the tank has about 50bar i thought that this is our problem. Wrong, the dosage unit has dirt and needs to be cleaned 🙁