Updated on: 25/03/2020
Industry standards such as ISO 9000, give their vote of approval to external certified calibration mass for the calibration of balances and scales. Even though many balances that include internal motorized calibration are available in the market, they can be extremely costly, and will still need external calibration for ISO certification.
To avoid extra expense, it makes sense to use external calibration methods. Removal of the internal calibration mass for calibration can be cumbersome and expensive. Balances can be calibrated by a licensed scale service provider onsite using ISO compliance certified traceable weights. Consider having all of your analytical balances calibrated on one day to avoid multiple visits from your scale service provider. This method can simplify your balance calibration schedule and minimize multiple service charges.
It is said that every location in the world is positioned differently in relation to magnetic “North”, making the acceleration of gravity different from location to location. These factors affect the performance of analytical balances, as do other factors such as ambient temperature and humidity at the installation site, barometric pressure, altitude, etc.
Manufacturers and vendors cannot provide a certificate of calibration for analytical scales and balances on purchase, since this certification can only be given at the place of installation. Since balances are calibrated for the purpose of delivering highly precise measurements, the procedure needs to be conducted at the site where the scale or balance will be installed.
You will be able to get a certificate at the time of calibration from your licensed scale service provider.
Calibration procedure should be performed on a regular schedule for best results, as well as after installation, maintenance, relocation or when a balance seems to be not working properly. If there are any significant changes in operating conditions such as temperature and humidity, it’s also good idea to re-calibrate your equipment before using it. Your scale service provider will always use certified check weights and follow the manufacturer’s instructions for your specific balance.
At Quality Scales Unlimited, expert technicians are available round the clock to install, calibrate and maintain your electronic or mechanical weighing equipment. Call 800.722.5301 or drop your queries for emergency service.
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