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TM5003 fan noise / fan replacement

 

Dear all,
My TM5003 fan seems like a jet plane taking off¡­
Is there a quieter option I could use as replacement?
I have seen a video of a guy that has replaced a TM5006 fan (110V) with a much quieter Low noise desktop fan.
Do you have any suggestion?
Best regards,
Roger
 

Add series power resistor or ( if AC fan) plastic cap to drop voltage.

beware of the airflow, if in hot location or high power load plug-ins.

Jon
 

Roger,

I have two TM5006 that had the same issue. I swapped the 110V fan against a 220V model, plug&play.
With this mod the unit is close to silent with an airflow largely sufficient for normal climatic conditions.

cheers
Martin
 

a fan regulation, controlled by the output air temperature, would be nice.
Maybe the air flow of the original fan is known. The max. output air temperature at original air flow could be determined by a worst case test.
Whether all operating cases are then covered should be cleared. (Maybe every single bay must be temperature monitored too.)
IIRC continuous operation with free bays isn't intended (in worst cases).
?
Stefan
 

I found a direct replacement fan that is very quiet. ?It was originally used in a CNC machine. ?I will need to look up the specifications when I get to the house. ?I don¡¯t keep all those details in my memory bank. ?I have one installed in my TM506 and it is barely noticeable.
. ?
 

I used the ETRI 141 Series Fan.? The 141-LV 0282 fan is EXTREMELY Quiet @ 28.0 dbA 55Cfm @ 1700 rpm and 1.9 mm Hg pressure.? There is a slightly louder version in the 141-LT 0282 somewhat louder @ 38.5 dbA and 74Cfm @ 2400RPM.and 3.6 mm Hg pressure.? These can be found used on occasion at good prices,? They are very expensive fans when bought new.? I am certain that there are some cheaper "knockoff;s" of these fans that could be found as well. ? ??
 

I was hoping for some model numbers, Thanks!! .. The fans in TM506 and TM5000 series main frames are just too loud...
 

See my last post,.? I? included two options for the fans I have used in the past.? .?
 

Is it possible your fan is bad.? Those AC fans just use bronze bearings which can get loud when they dry out.
I cringe a little when loud fans are simply replaced with quite ones as if that is the only parameter that is important.
You need to think about airflow also.
Look for an AC fan with similar airflow and find the quietest one.

--Victor
 

Hi everyone,

I've done the replacement, see the topic here (on the other group):?

/g/TekScopes/topic/23853435

Replacement parts are easy to find, it is off the shelf industrial AC fan.
TM5003 and TM5006 share same part number for the fan, so it is basically oversized for the TM5003 (3 slots vs 6 with 1 high powered).
The original spec'd ones are 75CFM so I guess you can easily go for 50CFM or maybe a little bit less.

I had "mixed" result, but my expectations ("silent PC style" low noise performance) were a bit too high.
Compared to an old one (with maybe lots of hours on it), a replacement will always improve thing, and maybe fan technology has improved a bit.
I guess my "mistake" was to go for the 76CFM (to much the spec) at 32dB instead of a 50CFM at 28-29dB.

Best regards,

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