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In the process of using METTLER ANALYTICAL BALANCE, we will encounter various technical problems.
Next, the editor will sort out a few questions that everyone is more concerned about in the use of analytical balances and answer them.
There must be some of them you want to know.
of! Question 1.
Does the laboratory have to establish a special balance room to place the one-thousandth balance? Can it be placed directly on a separate sky platform in the testing room? The environmental requirements of this level of balance are generally that the temperature is not more than 30 degrees Celsius, the humidity is not more than 85%, and the temperature difference during operation is not more than 5 degrees Celsius; but whether it can be placed directly into the test room and a separate platform should also consider whether the room is There are influences such as corrosive gas, vibration and airflow, if all are satisfied, it can be put
.
Question 2.
Should the silica gel in the METTLER analytical balance be replaced regularly, and how often should it be replaced? Experts suggest not to put desiccant in the balance, but to control the temperature and humidity between the balance
.
If you really want to put it, it is also based on the actual situation, and half of the discoloration will need to be replaced
.
Question 3.
How much influence does the weighing paper have on the balance? 1.
If the amount of the sample to be weighed is too small, it may be affected by buoyancy and static electricity during weighing, which may cause unstable weighing results
.
2.
The outer edge of the weighing paper exceeds the range of the weighing pan, causing the center of gravity to shift
.
3.
The weighing paper is in contact with other parts other than the weighing pan, resulting in inaccurate weighing results
.
Question 4.
In order to control the temperature and humidity, it is inevitable to turn on the air conditioner or fan in summer.
How to avoid the influence of wind on the balance? 1.
The balance should be placed in the laboratory away from doors and windows; 2.
When there are multiple balances, the more precise the balance should be placed in the inside; 3.
The analytical balance is equipped with a glass windproof door, high-precision trace/ultra trace The balance even needs two layers of storm doors
.
Question 5.
Do you need to recalibrate the balance after cleaning? It's just cleaning, no need to calibrate.
In addition, the balance should not be calibrated frequently.
Calibration will only be done when the error of the Mettler analytical balance exceeds the tolerance.
If the calibration procedure is started frequently, it means that there is a problem with the stability of the balance.
.
Next, the editor will sort out a few questions that everyone is more concerned about in the use of analytical balances and answer them.
There must be some of them you want to know.
of! Question 1.
Does the laboratory have to establish a special balance room to place the one-thousandth balance? Can it be placed directly on a separate sky platform in the testing room? The environmental requirements of this level of balance are generally that the temperature is not more than 30 degrees Celsius, the humidity is not more than 85%, and the temperature difference during operation is not more than 5 degrees Celsius; but whether it can be placed directly into the test room and a separate platform should also consider whether the room is There are influences such as corrosive gas, vibration and airflow, if all are satisfied, it can be put
.
Question 2.
Should the silica gel in the METTLER analytical balance be replaced regularly, and how often should it be replaced? Experts suggest not to put desiccant in the balance, but to control the temperature and humidity between the balance
.
If you really want to put it, it is also based on the actual situation, and half of the discoloration will need to be replaced
.
Question 3.
How much influence does the weighing paper have on the balance? 1.
If the amount of the sample to be weighed is too small, it may be affected by buoyancy and static electricity during weighing, which may cause unstable weighing results
.
2.
The outer edge of the weighing paper exceeds the range of the weighing pan, causing the center of gravity to shift
.
3.
The weighing paper is in contact with other parts other than the weighing pan, resulting in inaccurate weighing results
.
Question 4.
In order to control the temperature and humidity, it is inevitable to turn on the air conditioner or fan in summer.
How to avoid the influence of wind on the balance? 1.
The balance should be placed in the laboratory away from doors and windows; 2.
When there are multiple balances, the more precise the balance should be placed in the inside; 3.
The analytical balance is equipped with a glass windproof door, high-precision trace/ultra trace The balance even needs two layers of storm doors
.
Question 5.
Do you need to recalibrate the balance after cleaning? It's just cleaning, no need to calibrate.
In addition, the balance should not be calibrated frequently.
Calibration will only be done when the error of the Mettler analytical balance exceeds the tolerance.
If the calibration procedure is started frequently, it means that there is a problem with the stability of the balance.
.
