Internal or External Calibration: Choose Smartly


What is Calibration?

Calibration is a process intimately associated with analytical balances. It determines the relationship between the displayed value and true mass by comparing their value with the known mass. It helps in determining the accuracy of an analytical balance or precision scale.
Calibration is essential as it validates the precision of the weighing measurements. It also increases the longevity of the weighing scale and helps in producing valid data during rigorous testing.

While shopping for calibration weight scale in the United States you come across the internal calibration and external calibration scale option. It is quite challenging to choose between two options. To make a smart decision you must have a complete knowledge of each type, the difference between them and their pros and cons.

Read the following information and choose the calibration weight option in the United States smartly

External Calibration

External calibration is the process of calibrating manually. In this, the balance is calibrated with a predetermined mass. To calibrate a balance or scale externally, the user must have a set of approved calibration weights kept in top condition, gloves or forceps to handle them. One should handle the calibration mass with extreme care.

The external calibration working depends on a few factors:

•    Conditions of the calibration masses

•    Handling of the instruments by the user
It is a manual process and therefore one must handle it properly and do the calibration accurately.

Internal Calibration

Internal calibration allows the weighing scale or balance to calibrate itself automatically. They come in various design with variable degree and technologies. The precision of calibration depends on the model and price range of the unit. The calibration weight in these instruments is often motor driven and a scale or balance gets calibrated with a single button press.

This type of calibration is usually available for lab balances. It can also be used for automatic calibration at a particular time of the day or night if the temperature change plays a role in measurement and calibration. This feature makes it a useful and preferable choice in the busy labs as the user doesn’t have to perform the calibration process and there is no chance of forgetting to calibrate. So one can focus on other task and also gets reliable results from the balance as well with internal calibration.

The final choice of the calibration weight in the United States depends on your need like time, budget, etc. If you have time and a tight budget, then external calibration is the best option for you. If you don’t want to waste your time on manual calibration and want to save your time than internal calibration suits your requirement.


Location: Australia

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