FREQUENTLY ASKED QUESTIONS ABOUT METERS
1. I have purchased a new meter for my system and have completed installation, is it already accurate from the factory?
A. No. Meters manufactured and shipped to you are verified for proper function, general accuracy and repeatability. Many factors affect meter accuracy and the meter is required to be calibrated following it's installation to assure maximum accuracy.
2. What are these factors which effect meter accuracy?
A. Meter wear, product and ambient temperatures, product viscosity, line pressure, flow rates, piping configurations and equipment changes, to name a few.
3. Can a meter appear to be delivering accurately, but fail to be accurate?
A. Absolutely! Numerous meter components can fail, causing inaccurate delivery with no obvious indication of inaccuracy.
4. If I change the type of product being measured, should I have the meter recalibrated?
A. Yes. Product gravity and viscosity have a substantial effect on meter accuracy. Also, any pump changes, piping changes, product temperature changes, changes in delivery rate, etc., effect meter accuracy.
5. Are there any requirements for having my meters calibrated?
A. Yes. Your purpose for purchasing and installing a meter is to control or account for a specific fluid. If your meter is not accurate, your investment is ineffectual. State Laws require any resale meter to be calibrated annually to verify it's accuracy. It is the owner's responsibility to arrange annual meter calibration. Accurate product inventory control requires accurate meters.
6. Would I benefit from more frequent testing, rather than annual meter calibrations only?
A. Absolutely! Temperature (ambient and product), can cause substantial meter accuracy deviations. In addition, increased meter wear due to high volume usage will effect meter accuracy. More frequent meter calibration will expose meter and other system component failures, which will effect meter accuracy.
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