Do you know the working principle of an analytical balance? This tool is very important in the laboratory to support other research and trial processes. Without the need to linger any longer, here's the full review.
Get to know the Analytical Balance
Before we discuss the working principle of an analytical balance, let's get to know more about an analytical balance. An analytical balance or commonly called a laboratory balance is a balance used to measure small masses of solid or liquid in the sub-milligram range. This balance has a measuring plate that is in a box with a door with transparent glass, so dust and wind in the room will not affect the operation of the balance. This transparent box is known as a windshield.
The sample or substance to be weighed using an analytical balance must first be left at the same temperature as room temperature. This is to prevent natural convection caused by intervening in the air flow in the room which can cause an error reading.
Based on the analytical balance explanation above, the function of the analytical balance is to measure the mass of a substance with high accuracy reaching 0.00001 grams. Some analytical balances are also capable of making the mass percentages of substances against other substances. There are two types of analytical balances, namely analog analytical balances and digital analytic balances. Digital analytical balances are more commonly used in laboratories because the use of analog balances is more complicated than digital ones. Analog analytical balance is still used manually using a slider or what is commonly called earrings.
On the other hand, digital analytical balances are easier to use. Analytical digital balances generally come with the following features:
1. Electromagnetic Force Restoration, a permanent magnet coil-based feature with a high degree of measurement accuracy.
2. Internal Database Storing System, deposit your measurement data into a database.
3. Touch Screen Display, makes it easier for you to operate the analytical balance.
4. Water Pass, ensure the balance is always in the right position.
5. R232 Data Interface, connects your analytical balance with your printer and computer.
Also read: Types of High Accuracy Scales
Analytical Balance Working Principles
After recognizing what an analytical balance is, it's time for us to study the principles of analytic balance work. Of course, the analytical balance how to use it is different from the usual balance. Follow these steps to avoid using a digital analytical balance incorrectly:
1. Place the disc on the balance.
2. Press the "tare" button so that the weight of the dish shows zero.
3. Open one of the glass on the balance.
4. Put the substance to be measured in mass on the disk. We recommend that you use tools when placing chemicals so that no dust sticks.
5. Press the button on the balance, then wait for the numbers listed to be 4 digits behind the comma.
6. Clean the scale with a cleaning brush so that the remaining chemical substances that have been measured are not left behind.
In addition to these steps, you should also pay attention to 10 Ways How to Use Analytical Scales in the Right Laboratory:
1. Make sure the balance position is correct and the water setting is correct according to the instructions.
2. It is advisable to place the analytical balance in a place away from wind blowing or excess heat.
3. Calibrate balance before use.
4. Use gloves when using the balance, especially when touching the plate. This is to avoid sticking to dust or other substances that can affect the process of measuring the analytical balance.
5. Avoid the balance from the surrounding magnetic field.
6. Ensure that the windshield door is always closed before and after using analytical balances.
7. Use the ionizer on the balance to ensure cleanliness and ensure that no other substances stick to the plate.
8. Clean the balance after use.
9. Turn off the balance if you are not planning to use it in the near future.
10. If the balance is not used, it should be stored in a room with a temperature of 18-20 degrees Celsius.
In the working principle of analytical balance, the more often it is used, the level of accuracy will decrease over time. Therefore, it is necessary to calibrate the analytical balance regularly to ensure that the level of accuracy is always correct. The analytical balance calibration process can be done internally and externally. In the internal calibration process, the analytical balance can simply be reset according to the manual. Externally calibrating is done using a calibration pendulum.
For those of you who are planning to buy analytical balances in the near future, now there are many manufacturers or distributors who sell analytical balances at friendly prices. One of them is Hyprowira. Hyprowira is a Mettler Toledo distributor that sells high-precision analytical scales in Indonesia. After recognizing the working principle of an analytical balance, visit the Hyprowira page now and get your analytical balance!
