Question Suunto Transmitter on Scubapro MK17: Which Flow Restrictor?

[Alfred Stoppels]

Doesn’t matter - looking at the extension plug in the pic it’s still the equivalent of a direct connection to the reg female thread. Alternatively skip the extension plug and use a 6” HP hose and the type B flow restrictor … you will still get the clearance.

Don't like it with a hose, that will be swinging around and stuff.

 

[BoltSnap]

Don't like it with a hose, that will be swinging around and stuff.

A 15cm hose. Far better than direct connection to the FS.

 

[tursiops]

A 15cm hose. Far better than direct connection to the FS.

Apparently he dies not know how stiff a 15cm HP hose is under pressure. It does not "swing around."

 

[Alfred Stoppels]

This is not that difficult. Type B is for hoses, so you can swivel. A is for not hoses, because you do not need to swivel. You are not using a hose, right? Then A. The SP extension you are using just clones the port to be farther from the reg body. You are connecting as if directly to the reg. Type A.

Thank you

 

[lexvil]

Other than the fine banter, is the restricter necessary? I use the SP transmitter in the fitting (needed on the EVO but not the old 17) I assume it’s only purpose would to keep the pressure from slamming the transmitter if the valve were opened to fast.

 

[tursiops]

Other than the fine banter, is the restricter necessary? I use the SP transmitter in the fitting (needed on the EVO but not the old 17) I assume it’s only purpose would to keep the pressure from slamming the transmitter if the valve were opened to fast.

I've wondered about that too. Don't most first stages have a tiny hole in the HP port that acts as the flow restrictor? But, hey, it is Suunto....

 

[Alfred Stoppels]

Other than the fine banter, is the restricter necessary? I use the SP transmitter in the fitting (needed on the EVO but not the old 17) I assume it’s only purpose would to keep the pressure from slamming the transmitter if the valve were opened to fast.

Thank you, this helps. I am new to this transmitter-stuff with restrictors in it, nor am I technicaly skilled to understand excactly how it works. Just wanna dive safe and handle the gear as it should. I understand now that even without the restrictor ill still be fine. I will put in type A.

 

[BoltSnap]

Other than the fine banter, is the restricter necessary? I use the SP transmitter in the fitting (needed on the EVO but not the old 17) I assume it’s only purpose would to keep the pressure from slamming the transmitter if the valve were opened to fast.

It's necessary per Suunto. There was an issue with transmitter exploding a while ago (or something close to this). The restrictor slows down the air flow into the transmitter's opening.

 

[lexvil]

It's necessary per Suunto. There was an issue with transmitter exploding a while ago (or something close to this). The restrictor slows down the air flow into the transmitter's opening.

I felt I had some deeply buried memory of this but haven’t used anything Suunto in years.

 

[BoltSnap]

It had to be retrofitted to ALL Suunto transmitters including very old ones. It was offered for free, a recall essentially.