In different industries like food, pharma, etc., we find measuring equipment, and among them, we find scales or balances, we see the importance of keeping them well maintained and of course calibrated.
Calibration is basically the set of operations that establish, under certain conditions, the correspondence or comparison between:
the values indicated on an instrument, equipment, or measuring system,
and the known values corresponding to a measurement quantity or standard, thus ensuring the traceability of the measurements to the corresponding basic units and proceeding to their adjustment or expressing this correspondence by means of tables or correction curves.
In order to calibrate an instrument as delicate as a scale, it is necessary to have a reference standard (standard mass) that provides the real value, which is the one that will be used to compare it with the indication of the instrument that has undergone calibration. If this is not done correctly, the consequences can be very serious.
WHY IS IT IMPORTANT TO CALIBRATE A SCALE?
It is normal that due to the continuous use of a scale, it deteriorates and the result of the measurements may not be the most accurate. A scale can suffer a misadjustment, which may not necessarily be noticeable, but can have serious consequences. A variation of a couple of grams when we are using a scale to control the packaging of 100g packages, throughout the day can be many kilos of misadjustment.
The correct calibration of scales and any other instrument is fundamental, as it provides product safety. Under this logic, it is becoming more and more common for industries to carry out exhaustive calibrations of their measuring instruments. And that, in addition, they engage the services of accredited external calibration is a requirement that should not be overlooked.
Some of the most important reasons for calibrating industry's measuring instruments are as follows:
To maintain and verify the proper functioning of equipment.
To meet the requirements of quality standards.
To guarantee the reliability and traceability of measurements.
WHAT IS PREVENTIVE MAINTENANCE?
You must not only calibrate your measuring equipment, but you must also set up a preventive maintenance plan for it.
A program of inspections must be planned to ensure proper functioning, safety, adjustments, repairs, analysis, cleaning, lubrication, which must be carried out periodically based on an established plan and not on the demand of the operator or user.
Basically, we can summarise that the fundamental objective of preventive maintenance and calibration of scales. It is to be able to detect measurement failures in time to avoid greater evils.
We must achieve:
Reliability: Basically, the equipment operates in better safety conditions and its operating conditions are more reliable, with reliable results.
Durability: we must say that their useful lifetime is much longer.
Uniformity: the repeatability of the results.
That's all about the calibration and maintenance of scales of measuring equipment. There's no doubt that minimum defects can greatly impact the accuracy and efficiency of weighing machines, so you must pay attention to the calibration and maintenance associated with them.