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  1. #66
    Join Date
    Mar 2007
    Location
    wedged in freezer shelf
    Posts
    7,178
    Well I checked the Y/J site again and one for the Digital Display Manifold Gauge says 20% of reading and
    the Super Evac LCD now says +/- 20%
    “If You Can Dodge A Wrench You Can Dodge A Ball”

  2. #67
    Join Date
    Sep 2004
    Location
    Kansas City, Kansas, United States
    Posts
    13,833
    does the accuracy change at different temperatures??????????????





    Quote Originally Posted by itsiceman View Post
    Well I checked the Y/J site again and one for the Digital Display Manifold Gauge says 20% of reading and
    the Super Evac LCD now says +/- 20%

  3. #68
    Join Date
    Jan 2007
    Location
    Vancouver Island, B.C.
    Posts
    2,485
    Quote Originally Posted by supertek65 View Post
    does the accuracy change at different temperatures??????????????
    That's how a micron gauge works.....the rate at which 'the medium' allows the heat to be removed from the element is dependent on the number of gas molecules transporting that heat away by vibrating molecular motion....if it's in a HOT atmosphere.....you're screwed...for accuracy......
    Geeeze....20% accuracy.......wow....didn't they go all out...?
    Attached Images Attached Images
    "The quality you deserve is not expensive---it's priceless"

  4. #69
    Join Date
    Feb 2009
    Location
    Suffolk Co. N.Y
    Posts
    49
    Doug, are u recommending the BluVac?

  5. #70
    Join Date
    Sep 2004
    Location
    Kansas City, Kansas, United States
    Posts
    13,833
    If the micron gauge was a MLB hitter it would be better than Willie Mays!!!!!!!!!!





    Quote Originally Posted by Doug Lockhart View Post
    That's how a micron gauge works.....the rate at which 'the medium' allows the heat to be removed from the element is dependent on the number of gas molecules transporting that heat away by vibrating molecular motion....if it's in a HOT atmosphere.....you're screwed...for accuracy......
    Geeeze....20% accuracy.......wow....didn't they go all out...?

  6. #71
    Join Date
    Jan 2007
    Location
    Vancouver Island, B.C.
    Posts
    2,485
    Quote Originally Posted by Just In Time View Post
    Doug, are u recommending the BluVac?
    It's a helluva looking product and I have one on the way.....only one regret ..... that I didn't build it but they are a very principled group and 'get it' as to what we techs need......the decay rate and bargraph is gorgeous AND really innovative engineering.....
    I'll let you know but MITTS on the other site sent me review today and said it's SOOOOOO sensitive you can see every 'sweep' of the vacuum pump !!!!

    Here's his email to me "FWIW the Micron Gauge ROCKS It reads so fast its like you are reading pressure directly. I was watching the vanes turn in my cold pump Whoa!!! Very stable reading when I changed temperature on the sensor also. Impressive design from AccuTools IMO"

    "The quality you deserve is not expensive---it's priceless"

  7. #72
    Join Date
    Apr 2010
    Location
    Minnesota
    Posts
    524
    Quote Originally Posted by Just In Time View Post
    Doug, are u recommending the BluVac?
    That's the first time I've heard of Bluvac. Looks good.

    Interesting calibration procedure.

    Hmmm, maybe I need one...... Since the calibration procedure on my Thermal analog now involves tapping on it to get the needle to dial in

  8. #73
    Join Date
    Oct 2003
    Location
    las vegas
    Posts
    1,505
    Quote Originally Posted by Doug Lockhart View Post
    I was going to tell ctcont to send that thing to Marvin in Vegas to do his drop test and 'bucket test'. A guy Marvin was touting the benefits of one of our units to, said 'yah, but what about durability and rain'......Soooooo Marvin grabbed one of our units, dropped it into a bucket of water, left for 2.5 hours and came back to get it.....fired it up and has been using it ever since.
    Even Jim Bergmann who was the tech support guy for Testo for years said 'Doug, yours is a really effective field tool, the Testo is a lab instrument'....
    the drop test was only from 18 ft. &about 6 ft. out into the dirt test so that may not count. on the bucket test we used shipping tape over the obvious
    openings on the back side of the 1250 & only because i dont know where
    those openings go. also left the sensors connected after checking to make
    sure the connector was secure.
    have to take them back to weights & measures again to re certify accuracy tuesday & have no doubt that they will fo thru as easy as before.
    for a special job for a real pia account.

  9. #74
    Join Date
    Sep 2004
    Location
    Kansas City, Kansas, United States
    Posts
    13,833
    micron gauge???????

    I use Vacinol and a wet bulb indicator!!!!!!!!!!!!!!


  10. #75
    Join Date
    Oct 2003
    Location
    las vegas
    Posts
    1,505
    i ordered the blu vac last week & should see it tomarrow or tuesday.
    im also looking at their combustable gas detector.
    very interesting web page & product line.

  11. #76
    Join Date
    Sep 2004
    Location
    Kansas City, Kansas, United States
    Posts
    13,833
    Marvin
    let us know how you like it!

    Frank








    Quote Originally Posted by marvin View Post
    i ordered the blu vac last week & should see it tomarrow or tuesday.
    im also looking at their combustable gas detector.
    very interesting web page & product line.

  12. #77
    Join Date
    Aug 2007
    Location
    WI
    Posts
    1,116
    Quote Originally Posted by Doug Lockhart View Post
    The second point is that 'engineers' (and I use that word VERY loosely) are the guys that put those into the FP (Fisher Price) and the other one from da Fodderland.....THEY DON'T WORK IN THE FIELD......!!!!
    Now that is funny!

  13. #78
    Join Date
    Jan 2007
    Location
    Vancouver Island, B.C.
    Posts
    2,485
    Mitts has a quick video on the Blue Vac..
    http://www.youtube.com/watch?v=pQbu65WzsNw
    "The quality you deserve is not expensive---it's priceless"

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