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How to calibrate the balance. Method: Press the CAL key gently. When the display shows CAL-, it will let go and the display will show CAL-100, where "100" is the flashing code, which means that the calibration weight should use the standard weight of 100g. At this point, put the "100g" calibration weight on the plate and the display will show "----" waiting state.
After a long time the display appears 100.000g, take the calibration weight, the display should appear 0.000g, if it is not zero, then clear it again, and then repeat the above calibration operation. (Note: It is best to repeat the above calibration procedure twice in order to obtain accurate calibration results.)
How to perform intra-balance calibration. Methods as below:
The balance is set to zero, then hold down the “CAL†key until CALint appears. The following conditions will be displayed during calibration:
The balance is set to zero. The internal calibration weight is loaded. The balance is re-checked. The balance is reported. Calibration process. Balance report The calibrated balance automatically returns to the weighing state. Some people think that the more weight the object weighed in the electronic balance range, the greater the damage to the balance. The bigger it is. This understanding is not entirely correct. The maximum safe load of an instrument is the maximum static load that it can withstand without causing permanent changes in its metering performance. Due to the principle of electromagnetic force automatic compensation circuit, 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 balances with the gravity of the object being called, as long as The effect of weighing size on the scale within the allowable range is very small and will not affect the accuracy of the electronic balance due to long-term weighing.
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How to calibrate an electronic balance to reduce errors
In the verification (test), we found that the error in the first measurement test of the balance is relatively large. The reason is that a considerable part of the instrument is not calibrated for a long time interval, and it is considered that the balance can be directly weighed by displaying the zero position. . (It should be pointed out that the zero point of the electronic balance's power-on display cannot explain that the accuracy of the data weighed by the balance is in compliance with the test standard, and only indicates that the stability of the zero balance of the balance is acceptable, because it is necessary to comprehensively consider other technologies when measuring whether a balance is qualified or not. Indicator compliance). Due to longer storage time, position shifts, environmental changes, or for accurate measurements, the balance should generally be calibrated before use. The calibration method is divided into internal calibration and external calibration. German production of the Saudis, Switzerland-made METTLER, if you do not carefully read the instructions before use, it is easy to ignore the "calibration" operation, resulting in a larger weighing error.