Looking for medium speed (30-40 cfm) case fan w/rpm monitoring

[MichaelD]

I'm looking for a medium speed 80mm case fan; something in the 30-40cfm range, WITH rpm monitoring.

It's not as easy as it sounds; trying to find one! Plenty of low speed, low cfm fans w/rpm monitoring, but all the higher speed fans seem to only have the 4-pin connector w/o the rpm wire.

I've tried SVC, case-mod and Directron. Any help would be greatly appreciated!

 

[RalfHutter]

A Panaflo M1A (one of the "BX" versions with RPM monitoring) would probably work fine for you. The M1A's are 32cfm. The BX Panaflos come with a 3-pin connector on them. They're hard to find though but Digikey has them in stock. Search for Digikey part number "P11039-ND". The Panaflo part number is "FBA08A12M1BX"

 

[MichaelD]

Thank you, RalfHutter. Going to look now.

 

[lchyi]

My Panaflo 'H' fans had a tach on them also. I ordered mine from MPJA.com. (there's a link in the hot deals forum about halfway through the thread). $3.95 each, that's a pretty tough deal to beat.

Note: the site has a picture of the panaflo with two wires and a 3pin header. On the contrary, my fans came with three wires and bare leads... You might want to ask them about it.

 

[BG4533]

Originally posted by: lchyi
My Panaflo 'H' fans had a tach on them also. I ordered mine from MPJA.com. (there's a link in the hot deals forum about halfway through the thread). $3.95 each, that's a pretty tough deal to beat.

Note: the site has a picture of the panaflo with two wires and a 3pin header. On the contrary, my fans came with three wires and bare leads... You might want to ask them about it.

Did you try using the RPM sensors on these fans? I bought a couple a while back and tried it and got no reading off the RPM sensor line. I asked and was told it was "rotor lock" or something.

 

[lchyi]

Hrmm interesting, I haven't wired them into my case yet. I'm still waiting for a shipment of 3pin headers. You might be right. And what the heck is a rotor lock.

 

[FPSguy]

How about these:

80x25mm 32.5CFM / 28.3dB SVC Ball Bearing 3-pin

80x25mm Variable Speed YS-Tech 3-pin Case Fan 10.2~48.5CFM

80x25mm Zalman ZM-F1 39CFM@34dB or 20.6CFM@20dB (3-pin)

 

[MichaelD]

IIRC, "rotor lock" is that the fan has the built in ability to shut off the current it receives if it senses zero rotation. I.E. something stuck in the blades. This prevents the fan motor from burning up.

Thanks for the suggestions guys!!!