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Multifunction calibrators

Discussion in 'Electronic Equipment' started by David C. Partridge, May 31, 2006.

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  1. I'm considering the purchase of a multi-function calibrator to handle up to
    6.5 digit meters (or better). GPIB support is probably essential.

    An obvious candidate is the Fluke 5520A, possibly with the scope calibration
    option though I can do without that as I have other equipment to cover that
    sort of work, however this is a little pricey.

    What other calibrators should I be looking at? I'm very happy to buy used
    equipment (possibly the older Datron stuff) if I can be sure that I can get
    it fixed and calibrated still and that it will work correctly here in UK on
    230V 50Hz.

    Any active metrologists watching who can make some recommendations
    (including options needed) and target pricing?

    Thanks
     
  2. carneyke

    carneyke Guest

    Fluke 5700. That's what we use...... They are getting older now and
    should have come down in price but they are a STANDARD.... Maybe you
    need to get seperate boxes (DC Volts, DC Current, AC Voltage, AC
    Current and Resistance. Should be tons of it out there, but how
    reliable will it be ? Will it go out of tolerance ? A good
    multicalibrator is no small design / build task, as you know. Your
    Fellow Metrologist On The Other Side Of The "Pond", Kevin
     
  3. JW

    JW Guest

    This one's been for sale for at least a year now:
    http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3851198881

    Every now and then I check on it to see if it's sold yet - I'd like to
    have this one, but the company I work for is too cheap. I have all
    separate devices that cost me about 4-600 USD apiece on Ebay.
     
  4. I thought the older Wavetek calibrators were power supply voltage/frequency
    specific (i.e. 110V 60Hz couldn't be converted for use with 230V 50Hz by
    just fiddling with jumpers). Also I can't make much sense of the Wavetek
    calibrator numbers is the 4800A the top of the pile?

    PS Where can I find some real technical info (specification sheet, or even
    better user & service manuals) on the 4800A, as I came up dry searching for
    detail about it - though found quite a few folks selling them at fairly high
    prices.

    PPS Who will service/calibrate these nowadays - I imagine Fluke will say
    "out of support" as they will want to sell me a 5720A!

    Thanks
    Dave
     
  5. What is your "separate devices" list out of interest?

    Cheers
    Dave
     
  6. Hi David,

    You can also have a look at Time Electronics products, they have a quite
    large range of multifunction calibrators. See
    http://www.timeelectronics.co.uk/ (and they are in the UK too...)

    Yours,
     
  7. JW

    JW Guest

    Not sure, but at the link below it claims "4800A Power Requirements
    Input Power Universal (Auto Sense and Switch)"
    I really don't know.
    Some specs can be had here:
    http://analyzer.testmart.com/sp.cfm/CALIBR/WAVEPR/4800A.html
    There are third party calibration houses. We use Essco.
     
  8. JW

    JW Guest

    For DC voltage calibration I use a Valhalla 2701B; For AC, an HP 745A; for
    resistance a Fluke 5450A. If you're on a tight budget, separates can save
    you a lot of cash, and if something goes wrong, they're cheaper and/or
    easier to repair.
     
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