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The voltage detector mainly detects the mains voltage under normal working conditions. During the operation of the voltage detector, the detection command is remotely controlled by the server, and the detection command issued by the communication module GPRS/GSM is received by the execution terminal. During this process, the voltage detected by the voltage detector is operated by the control module, and the mains voltage is switched to the output terminal of the standard voltage. At the same time, the voltage monitor uses RS232 interface to transmit data to the remote monitoring device. The data transmitted by the voltage monitor and the comparison work of the remote device's own detection will be undertaken by the remote monitoring device. Through data comparison, it is easy to know whether the working status of the voltage monitor is normal. If the data error is within the allowable range, it is considered normal, and at the same time, the remote device will also receive feedback data information, Indicate 'qualified'. Otherwise, if the error is too large, it will be deemed unqualified and feedback will also be given as "unqualified" information Function of testing report:1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report 2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problems100% inspection and testing process:1. Telephone communication and confirmation of requirements 2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:1. The testing industry is fully covered, meeting different testing needs 2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate 4. Free initial testing, with no testing fees charged 5. Self service order delivery for free on-site sampling 6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China
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