Air drafts can certainly influence your precision scale or balance and hence affect your results. Air drafts act on the sample, the container and the weighing pan, exerting an additional force on the precision weighing cell that the balance interprets as weight. Particularly when using a precision balance with a readability of 1 mg, or even 10 mg, this additional weight force can be significant, affecting the accuracy of your results. Lower readability precision balances have a draft shield fitted for this reason. METTLER TOLEDO's Excellence level precision balances and precision scales are fitted with the SmartPan weighing pan. This unique weighing pan reduces the influence of air drafts on the precision weighing cell, minimizing the associated errors. Thanks to faster settling times, SmartPan makes it possible to deliver results in half the time compared to a standard weighing pan. Under harsh weighing conditions (inside a safety cabinet), results on a 1 mg readability precision balance with SmartPan show an outstanding 86% improvement in repeatability compared to a standard weighing pan.    The extraordinary stability provided by SmartPan also enables you to weigh with the draft shield open, minimizing process steps and further helping to speed up operations.  Under normal weighing conditions, a 1 mg readability precision balance with SmartPan can even be used without a draft shield.       Download our white paper to learn more about SmartPan:
Outstanding Weighing Performance – Even Under Harsh Conditions.