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Re: HP5335A fan replacement


 

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Gotta love HP, I can¡¯t find that in my manual.? Page number?

Thanks steve

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From: [email protected] <[email protected]> On Behalf Of Steve - Home
Sent: Tuesday, March 19, 2019 2:53 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] HP5335A fan replacement

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I have the same manual as you but I looked in y parts unit and it has the DC fan.?

Steve

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On Mar 19, 2019, at 4:44 PM, Stephen Hanselman <kc4sw.io@...> wrote:

Steve

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What¡¯s the part number of your manual?? I¡¯m going to have to locate a copy

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Thanks steve

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From: [email protected] <[email protected]> On Behalf Of Steve - Home
Sent: Tuesday, March 19, 2019 2:32 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] HP5335A fan replacement

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Mine says 18-30vdc...

Steve

WB0DBS

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On Mar 19, 2019, at 4:02 PM, Stephen Hanselman <kc4sw.io@...> wrote:

Dan,

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That¡¯s interesting, according to my manual (05335-90021 4th ed, Aug 1988) the fan is a 3160-0209 32CFM 105-125V 50/60Hz.? We¡¯ve fixed several of these and they have all had AC fans.

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Might want to check again, on the other hand there may be a different version we have not seen that is DC.

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Regards,

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Stephen Hanselman

Datagate Systems, LLC

3107 North Deer Run Road #24

Carson City, Nevada, 89701

(775) 882-5117 office

(775) 720-6020 mobile

s.hanselman@...

a Service Disabled, Veteran Owned Small Business

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From: [email protected] <[email protected]> On Behalf Of Dan Nessett via Groups.Io
Sent: Tuesday, March 19, 2019 1:19 PM
To: [email protected]
Subject: [HP-Agilent-Keysight-equipment] HP5335A fan replacement

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I want to replace the fan in a used HP5335A, which is very noisy. I Googled this topic and did not find anything here, but found a suggestion on the EEVBlog. One poster suggested using a?Noctua, NF-R8 (), but this is a 12V fan and my HP5335A fan is powered by 24V.

So, I bought a Evercool 24V fan from Amazon (
). The specs for the?Pabst fan that comes with the HP5335A are:?34 dBA, 61 m3/hour. The specs for the Evercool fan are: 28 dBA, 55 m3/hour. So, the Evercool is a bit underpowered, but considerably quieter than the?Papst. From what I have read the?Papst fan is a bit?over spec'd in?terms of airflow, so I thought the Evercool fan might work fine.

Does anyone have reasons why the Evercool would not be a good replacement fan? (Joe, KN5U - any comments?).

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