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What is Weighing Machine Calibration and why is it needed?

· OIML and ASTM weight

One of the extensively used machines in various industrial spaces is the weighing unit. The unit find its use in various industrial sectors due to its accurate weight assessing capabilities.

Weighing Machine

Though machines are relentlessly lowering the burden on humans by easing the carrying out of daily chores, it is still not a good idea to depend solely on them. Same is the case with weighing machines; they have quite effectively made weighing of different goods look like a piece of cake but at times they do need some calibration for maintaining accuracy in their weight readings.

Why is calibration needed?

Like all other machines, weighing machines need periodic calibration to maintain their efficiency and the best way to calibrate these gears is by using the OIML and ASTM weights. Needless to say, a precise weighing machine quite effectively helps to maintain the quality of various manufactured products thereby maintaining the goodwill of the manufacturing company.

There are various reasons for which you might need to calibrate your weighing gear. One of these is depreciation with the passage of time. In the course of using your equipment, it can get exposed to elements like cold, moisture, dirt, acids, etc. These elements, at times, can disturb the efficiency of your weighing machine.

Fortunately, you need not worry or bother to buy a new machine, instead, get your existing machine calibrated either by taking professional help or on your own by utilising the certified weights. To ensure proper functionality of different parts of your weighing scale, a regular check is necessary. Remember, a single malfunctioning part of a weighing scale can show a discrepancy in its weight assessments.

What are test weights?

Test weights are a range of weight blocks used to calibrate the weighing machines. These weights are often certified and a reputed company will certainly stick to the OIML and ASTM standards while manufacturing them.

There are several companies that build reliable test weights and the China-based HiWEIGH takes pride in being one of the trusted ones for over 20 years. It is into the manufacturing of weighing machines as well as certified test weights for various industry verticals.

Impact of gravitation on weight readings

Gravitation is another reason why precision balances show discrepancies in weight readings. This factor is often overlooked by most of the weighing machine users though this can be easily eliminated by proper calibration.

Gravitational force is not uniformly spread across the globe and is sometimes the reason for malfunctioning of a number of weighing scales. This is due to the fact that a weighing scale measures the ‘weight’ of an object. The ‘weight’ is ultimately the force by which the earth attracts the object towards itself. Therefore, it is easily comprehensible that gravitational field in different regions plays a significant role in the weight of the object to be measured.

Gravitational field can also affect the weight of an object when the same is weighed using one particular machine in two or three different places depending on the latitude and longitude of those places.

Conclusion

Precision is the key element of a weighing machine and if that is disturbed by any chance then the whole point of measuring weights becomes pointless. Therefore, it is important to check and calibrate the weighing gears at regular intervals of time. Thus, should you own a weighing equipment, it might be the time to get it calibrated without any delay.