The electronic balance is one of the most common basic equipment used in the laboratory, and the weighing result is essential as the basic experimental data, ensuring the measurement accuracy of the electronic balance becomes inevitable. Laboratory electronic balances under legal supervision must go to the statutory metrology institute for metrological verification every year. However, for laboratories with high data requirements, in order to ensure accurate values ​​during the interval of metrological verification, it is still necessary to The condition of the equipment is checked by itself.
However, the reality is often that the industry has a specialization. The measurement knowledge of the electronic balance personnel is limited, and it is not known how to carry out the inspection of the electronic balance. In fact, everyone can check under the guidance of the electronic balance.
Take the products of Sartorius as an example: As early as 2012, Sartorius launched the Cubis Individual series of products. Many users may still be in the fog for this new concept. It is the collection of series application software Q-APP. . The software is designed according to the customer's relatively complex application program. After downloading the software into the balance of the Sartorius Cubis MSA model, these Cubis balances are upgraded to Cubis Individaul. The upgrade to Cubis Individual's balance has greatly increased the number of steps you can take to achieve complex operations step by step. These leading steps are very clear and specific, specifically to prompt you to remove the skin, which weight to put, which weight to remove, etc. Free you from the memory and mastery of complex operating procedures.
The following are the main operations of the electronic balance check and calibration program UserCal V1:
1. Set the number of weights you can use to check the balance error: you can select 3 or 5 calibration according to the distribution of weighing data (Figure 1)
2. For example, we choose 3 quality points for inspection (Figure 2)
3. Type the nominal value of the first weight and the tolerance we accept (Figure 3)
4. The balance prompts us to remove all objects from the weighing pan and perform the peeling (Figure 4)
5. Instruct us which weight to put on (Figure 5)
6. Automatically calculate and display whether the balance is within the set tolerance range (Fig. 6)
7. The electronic balance then repeats the above steps until all three points are checked.
8. Display complete inspection results (Figure 7)
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Usually, the indication error check can be performed within the legal measurement interval period. For special applications, for example, applications with great emphasis on data repeatability can increase the repeatability check. Applications with large influence on the offset error can also increase the offset error. Check.
Advisory"
Sartorius is currently in the process of purchasing a balance of the Cubis MSA model and will receive a free permanent balance check and calibration application Usercal V1 activity. The deadline for the event is September 30, 2015. Please act now, or it is too late! Learn more about the event »
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