Sound Level meter requirements

[Del K. Rykert]

I had a friend calibrate  my R.S. meter. it was off 2dB. Not inferring that it is best meter. Just they can be adjusted. How well it hold the adjustment I have no  clue.
 
    Del

  ----- Original Message ----- 
  From: Bob Richards 
  To: discussion at nsrca.org 
  Sent: Wednesday, February 16, 2005 8:45 AM
  Subject: Re: Sound Level meter requirements


  Good point.

  For my use (making comparisons) the RS meter is fine. The club I formerly belonged to also used them for enforcing a club-imposed noise limit.

  However, if it comes down to enforcing a local noise ordinance, a calibrated meter traceable to NIST would probably be required. I'm not sure, but I don't see why you would not be able to have a RS meter calibrated, although I am sure the measurement uncertainty would not be very good. I'm sure the calibration would probably cost more than the RS meter.

  What are/were the circumstances of "needed in a court of law" are you referring to?

  Bob R.

  Lance Van Nostrand <patterndude at comcast.net> wrote:
    Earl/John,
    Our club bought a RS meter and I remember Gray taking it to a contest where 
    either Earl or Mike Harrison had their Extech. The RS meter was 2 db off 
    and had no calibration. We then bought the Extech and found that the 
    calibration ability and the specs are needed in a court of law.
    --Lance

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