The lead seal and the inspection seal of the electronic scale are to ensure the measurement accuracy of the electronic scale and prevent illegal cheating, but their roles and use methods are different:
1. Lead seal: It is generally sealed on the shell of the electronic scale to ensure that the main components of the electronic scale (such as sensors, chips, etc.) are not artificially damaged or changed. The seal is packaged by the metrology department or a third-party testing agency, usually using anti-counterfeiting technology to ensure the authenticity and reliability of the seal.
2. Inspection and sealing: The measurement department or a third-party testing institution tests, validates and seals the electronic scale. Through the detection of the indicators of the electronic scale (such as weighing accuracy, display accuracy, stability, etc.), and then through the seal to ensure the measurement accuracy of the electronic scale. The inspection seal is usually sealed on the display screen, logo and other places of the electronic scale to remind the user that the electronic scale has been tested and verified.
To sum up, the lead seal and the inspection seal are to ensure the measurement accuracy of the electronic scale and prevent illegal cheating, but the lead seal is mainly to seal the main components of the electronic scale, while the inspection seal is to detect and verify the electronic scale, and to seal the electronic scale when the indicators meet the requirements.
The lead seal and the inspection seal of the electronic scale are used to protect the function of the electronic scale, but their role and principle are slightly different.
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The lead seal is used to protect the weighing sensor and weighing instrument of the electronic scale from external interference and affect the weighing result. If the seal is removed without permission, the scale can no longer be used. Because the lead seal is a safety protection device, similar to the car's airbag, it can protect the weighing equipment of the electronic scale from impact, vibration, moisture and other factors, so as to ensure the accuracy of the weighing.
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Seal inspection refers to the installation of a seal detection device on the electronic scale, when the seal is removed, the device will emit an alarm to remind the user that the seal has been removed. The function of sealing is to protect the weighing equipment of the electronic scale from external interference to ensure the accuracy of the weighing results.
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In short, the lead seal and the inspection seal are to protect the weighing equipment of the electronic scale, but their role and principle are slightly different.