Particle counter
- Thread starter pclab
- Start date
I use one of these exact ones: http://www.dylosproducts.com/ornodcproair.html
Works really good, and counts both 2.5 micron and 0.5 micron sizes at the same time. I leave it on all the time and I always make sure it's reading 0 on both particle sizes before I open a drive up. I know it works well because it only takes a minute after I turn the fan off to start seeing the numbers climb back up.
Works really good, and counts both 2.5 micron and 0.5 micron sizes at the same time. I leave it on all the time and I always make sure it's reading 0 on both particle sizes before I open a drive up. I know it works well because it only takes a minute after I turn the fan off to start seeing the numbers climb back up.
![Amarbir[CDR-Labs]](/forum/data/avatars/m/0/68.jpg?1635193559){kind=avatar}
Amarbir[CDR-Labs]
Member
Jared":10xs2rzn said:
Very Nice ,
Love To Get One ,How Much for this jared
abedalkareem
Member
Jared":2cbca788 said:
@LarrySabo do you have a similar device , i am interested to know the readings of your DIY clean bench and its efficiency?
LarrySabo
Member
No, I don't have one but would be interested to know the real filtering efficiency. However, I can't justify spending that amount of money to find out. I know that looking at the top platter that it is pretty clean, but the eyes are unable to resolve the size particles that could cause problems. The many HSA RnR (removal and re-assembly) tests I've done with HDDScan invariably show faster performance after than before. I think the meter works best in air that's not moving, so don't know how accurate it would be in a horizontal laminar flow.abedalkareem":3pwi6zvw said:
LarrySabo
Member
I'm familiar with the design, and thought I had read a comment by the designer years ago about the effect of air passing through the fan but can't find the reference. I thought it was in this thread but didn't find it.
It may throw off the number nominally just due to the fact that it's basing the calculated number on the number of particles within a certain volume of air passing through. So if it were reading 150 ppm and the laminar is pushing extra air through it, it might read 175 (technically inaccurate). But, if it's reading a consistent 0 ppm, I'd say it's a moot point.
I'm pretty sure that even a single measurable particle passing through will trip the scale to 1. If I even clap my hands, or move around too much I'll see the number jump up to 1 or 2 for the small particle count. All part of why a walk in clean room is just unnecessary in this business. A single human body can put out more than enough dust to contaminate a drive if you're not careful how you work. I like that the bench minimizes the human contact to just a pair of well-gloved hands. I even use the extended sleeve gloves so virtually none of my skin is exposed in the chamber. Perhaps I'm a bit paranoid like that.
I'm pretty sure that even a single measurable particle passing through will trip the scale to 1. If I even clap my hands, or move around too much I'll see the number jump up to 1 or 2 for the small particle count. All part of why a walk in clean room is just unnecessary in this business. A single human body can put out more than enough dust to contaminate a drive if you're not careful how you work. I like that the bench minimizes the human contact to just a pair of well-gloved hands. I even use the extended sleeve gloves so virtually none of my skin is exposed in the chamber. Perhaps I'm a bit paranoid like that.
Amarbir[CDR-Labs]
Member
Jared":2haqkdw0 said:
Well,
Keeping Bench ,Ourself ,Tools And Drive as clean as we can is always helpful jared .