How to use precision balance to improve its accura

2022-07-22
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Precision balance is seldom used in our life. It is a kind of weighing instrument used for accurate measurement of mass (weight). There are many kinds of precision balance, including ordinary precision balance, semi-automatic/full-automatic weighting electro-optic projection damping precision balance and electronic precision balance

electronic precision balance is an electronic balance with high precision among electronic balances. It has built-in high-precision weighing sensors, so its accuracy and sensitivity have been improved, and it is widely used in quantitative analysis in laboratories, research institutes and other places. We all know that electronic precision balance uses the principle of electromagnetic force balance to realize weighing. Although the measurement accuracy and sensitivity are higher than those of traditional mechanical precision balance, this kind of balance is vulnerable to external temperature, electromagnetic environment, etc., so we should pay attention to some details when using it, so that we can improve its weighing accuracy. Next, the editor will introduce the relevant knowledge of the use of precision balance

[characteristics of electronic precision balance]

the back lit LCD screen is used to facilitate users to read weighing results in different weighing environments. 12 configurable personalized user interfaces help you save time and reduce errors. The removable windscreen design is used to realize the rapid cleaning of the balance. RS232 communication interface is standard, which is convenient to connect printers, computers and other peripheral devices. The output of printed results in line with GLP specifications is automatically calibrated by external weights to ensure the accuracy of weighing results. It has built-in applications such as basic weighing, piece weighing, percentage weighing and dynamic weighing

[use of electronic precision balance]

1. Check and adjust the balance to the horizontal position

2. Check whether the power supply voltage matches in advance (configure a voltage regulator if necessary), and power on and preheat to the required time according to the requirements of the instrument

3. Turn on the balance switch after preheating for enough time, and the balance will automatically adjust the sensitivity and zero point. After the stability sign is displayed, formal weighing can be carried out

4. When weighing, place the clean weighing bottle or weighing paper on the weighing tray, close the side door, gently press the skin key, the balance will automatically calibrate the zero point, and then gradually add the substance to be weighed until the required weight

5. The weight of the weighed substance appears in the lower left corner of the display screen &ldquo& rarr;& rdquo; The actual value displayed on the display when marking

6. After weighing, remove the weighing bottle (paper) in time, close the side door, cut off the power supply, and register the use

[precautions for the use of precision balance]

1. Before using precision balance, first calibrate with standard weight, and select the weight of corresponding grade for balances with different accuracy

2. Keep the working room clean to prevent the influence of airflow

3. Do not have direct sunlight in the room. Try to choose a shady room or use curtains and other methods to avoid light

4. The readings should be taken within a fixed time after loading, such as the readings of 5 seconds after loading or the readings of units

5. Please adjust the bubble of the level before use to make it in the middle position

6. After multiple measurements (3 to 5 times), take the average value

7. The precision balance should be far away from the source to prevent vibration, such as roads, railways, vibrators and other vibrating machinery. When it is unavoidable, anti vibration measures should be taken

8. Keep away from heat sources and high-strength electromagnetic fields

conclusion: the above introduces the relevant knowledge of the use of precision balance, and I hope it will be helpful to you. For more relevant knowledge, please continue to pay attention to the information platform. More wonderful content will be presented for you in the follow-up

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