First, the use of Cohen electronic balance notes 1, (1) how to choose an electronic balance to choose an electronic balance should be considered from the absolute accuracy of the electronic balance (division value e) to meet the accuracy requirements of weighing. If you choose a balance with a precision of 0.1mg or a balance with a precision of 0.01mg, you should not say that you want a balance of one ten thousandth or one hundred thousandth of a precision. Cohen is using a relative accuracy to measure the balance, otherwise the balance you bought cannot Meet the needs of users. For example, in the actual work encountered such a situation, with an actual scale index value d of 1mg, the scale scale value e is 10mg, Zui large weighing 200g Mettler electronic balance, used to weigh 7mg objects In this way, it is impossible to obtain accurate results: in the "JJG98-90 non-automatic balance test verification procedure", the large allowable error of Zui and the calibration scale index value "e" are of the same order of magnitude, and the zai large allowable error of this balance For 1e, it is obvious that the object of 7mg cannot be weighed; the weighing of 15mg is not a good choice for such a balance, because the relative error of the test result is very large, and a higher level balance should be selected. The Cohen balance is shipped from the factory. The value of zui small weighing has been specified. Therefore, we must consider the accuracy level when purchasing and using an electronic balance.
(2) Requirements of the range of symmetry range In addition to the accuracy of the electronic balance, it is also necessary to see whether the large scale of Zui meets the needs of the range. Usually take the large load of zui plus a little insurance factor, that is, the common load can be relaxed later, not the bigger the better.
2. Regarding the calibration of the electronic balance, in the verification (test), we found that the error was large when the balance was first tested. The reason was that a considerable part of the instrument was not calibrated in a long time interval, and the balance was considered The zero position can be directly weighed. (It should be pointed out that the electronic balance starts to display zero point. It cannot be said that the accuracy of the balance weighing data meets the test standard, and only the balance zero stability is qualified. Because it is necessary to consider the other technology when measuring whether a balance is qualified or not. Compliance of indicators). Due to long storage times, positional movements, environmental changes or for accurate measurements, the balance should generally be calibrated prior to use. The calibration method is divided into internal calibration and external calibration. The Cohen electronic days produced in Germany have an average calibration device. If you do not read the instructions carefully before use, it is easy to ignore the “calibration†operation, resulting in a large weighing error.
Some people think that the heavier the object weighed within the range of the electronic balance, the greater the damage to the balance. This understanding is not entirely correct. The general safety weapon zui large safety load is the large static load that it can withstand without causing permanent changes in its metering performance. Since the electronic balance adopts the principle of automatic compensation circuit of electromagnetic force, when the weighing pan is loaded (be careful not to exceed the weighing range), the electromagnetic force will push the weighing pan back to the original equilibrium position, so that the electromagnetic force and the gravity of the object to be weighed Balance, as long as the weighing size within the allowable range has little effect on the balance, it will not affect the accuracy of the electronic balance due to long-term weighing.
Second, the maintenance and maintenance of Cohen electronic balance 1, the balance is placed on a stable workbench to avoid vibration, airflow and sunlight.
2. Adjust the level bubble to the middle position before use.
3. The electronic balance should be preheated according to the requirements of the manual.
4. When weighing volatile and corrosive items, place them in a closed container to avoid corrosion and damage to the electronic balance.
5, often self-school or regular external school electronic balance, to ensure that it is in a good state.
6. If the electronic balance fails, it should be repaired in time, and it is not allowed to work with “illnessâ€.
7. The operating balance should not be overloaded to avoid damage to the balance.
8. If you do not use an electronic balance for a long time, you should temporarily collect it as well.
(2) Requirements of the range of symmetry range In addition to the accuracy of the electronic balance, it is also necessary to see whether the large scale of Zui meets the needs of the range. Usually take the large load of zui plus a little insurance factor, that is, the common load can be relaxed later, not the bigger the better.
2. Regarding the calibration of the electronic balance, in the verification (test), we found that the error was large when the balance was first tested. The reason was that a considerable part of the instrument was not calibrated in a long time interval, and the balance was considered The zero position can be directly weighed. (It should be pointed out that the electronic balance starts to display zero point. It cannot be said that the accuracy of the balance weighing data meets the test standard, and only the balance zero stability is qualified. Because it is necessary to consider the other technology when measuring whether a balance is qualified or not. Compliance of indicators). Due to long storage times, positional movements, environmental changes or for accurate measurements, the balance should generally be calibrated prior to use. The calibration method is divided into internal calibration and external calibration. The Cohen electronic days produced in Germany have an average calibration device. If you do not read the instructions carefully before use, it is easy to ignore the “calibration†operation, resulting in a large weighing error.
Some people think that the heavier the object weighed within the range of the electronic balance, the greater the damage to the balance. This understanding is not entirely correct. The general safety weapon zui large safety load is the large static load that it can withstand without causing permanent changes in its metering performance. Since the electronic balance adopts the principle of automatic compensation circuit of electromagnetic force, when the weighing pan is loaded (be careful not to exceed the weighing range), the electromagnetic force will push the weighing pan back to the original equilibrium position, so that the electromagnetic force and the gravity of the object to be weighed Balance, as long as the weighing size within the allowable range has little effect on the balance, it will not affect the accuracy of the electronic balance due to long-term weighing.
Second, the maintenance and maintenance of Cohen electronic balance 1, the balance is placed on a stable workbench to avoid vibration, airflow and sunlight.
2. Adjust the level bubble to the middle position before use.
3. The electronic balance should be preheated according to the requirements of the manual.
4. When weighing volatile and corrosive items, place them in a closed container to avoid corrosion and damage to the electronic balance.
5, often self-school or regular external school electronic balance, to ensure that it is in a good state.
6. If the electronic balance fails, it should be repaired in time, and it is not allowed to work with “illnessâ€.
7. The operating balance should not be overloaded to avoid damage to the balance.
8. If you do not use an electronic balance for a long time, you should temporarily collect it as well.
Keywords---Fish Curd, Side Dish, Sauce, Pot, Boil
Ingredients:
Fish Curd, Side Dish(Dried Day Lily, Rice Noodle), Tomato Sauce
Directions:
1. Add 500ml of water along with tomato sauce pouch into a pot to boil.
2. Add the side dish into the pot and wait for 2-3 minutes
3. Add the fish curd into the boiling soup until they float(1-2minutes). Then pour the soup and the fish curd into a bowl before serving
Vegan Tofu Fish,Vegan Fish Tofu,Fried Fish Tofu Recipe,Food Fish Tofu
Guangzhou Luxe Seafood Enterprises Ltd. , https://www.seafoodluxe.com