1. Calibration Range
The scope of the calibration range should cover the scope of use of actual production and inspection. For each weighing equipment, the enterprise should first determine its scope of weighing, and then determine the scope of the calibration range on this basis. The range of calibration is not necessarily related to the large amount and smaller weighing measurement of the weighing equipment, and it is related to the actual measurement range used by the enterprise. For example, the amount of materials for the material of a certain electronic scale is 10-100 kg. Then, the calibration range should generally be equipped with a weight according to the calibration schedule. Some companies are not clear enough for the scope of the calibration range. When the calibration is not available, the size of the scope of the range cannot meet the requirements of the calibration.
2.Calibration Weight
Calibration Weight is the standard quantity of the quality. As a type of verification standard for the weighing device, it determines whether the quality of the weighing equipment meets the standard. Sometimes the size of different materials will produce a series of errors due to the improperly stored environment, which is corroded by certain irritating substances, as well as air and temperature. Therefore the accuracy of the value can generally be verified with the weighing equipment at the same time.
3. Calibration Conclusions
As mentioned earlier, the passage is not the same concept as the calibration conclusion. Calibration is a process. For different specifications and differential scope, "calibration operating procedures" shall be formulated separately. For weighing equipment within the validity period of the verification, the scope of the measurement range is selected to calibrate the standard with the quality of the planned material. As long as the large allowable error (MPE) is within the specified range, it means that the weighing equipment can be used normally. There is a record for each calibration. The form of records should be formulated in reference to the formal forms attached to the regulations of the weighing equipment instrumental verification. For weighing equipment with electronic recording performance, the calibration process should be output into the calibration record as much as possible.
4.Environmental Impact
Some inspectors will pay more attention to the working environment of weighing equipment, including temperature and shockproof conditions. From the perspective of the environmental requirements of drug production, the working environment of most weighing equipment is within the acceptable range and will not have a significant impact on the sensitivity of the weighing equipment. In the calibration records of part of the accuracy, whether the calibration records need to be recorded in a routine record, the temperature and humidity of the environment will be recorded.
Post time: Feb-28-2023