Handheld electric energy meter field calibrator
A hand-held calibrator technology, applied in the field of electric energy meter calibration, can solve the problems of complex internal reference, heavy weight, and high production cost of electric energy meter on-site calibrator, achieve simple man-machine dialogue operation, simplify internal reference, The effect of cost reduction
Inactive Publication Date: 2016-11-09
HAIYAN XINGCHUANG ELECTRONICS CO LTD
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Problems solved by technology
[0004] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a hand-held electric energy meter field calibrator, which aims to solve the problem that the internal reference of the electric energy meter field calibrator in the prior art is relatively complicated, and the production cost is relatively high. And the technical problems of large volume, heavy weight, and low calculation accuracy
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[0017] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.
[0018] refer to figure 1 and figure 2 , the embodiment of the present invention provides a hand-held power meter field calibrator, including a hand-held housing 1, a micro control unit MCU 2 and a high-precision power metering chip 3, and the micro-control unit MCU 2 and high-precision power metering The chips 3 are installed inside the hand-held housing 1, the micro-control unit MCU 2 is provided wi...
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The invention discloses a handheld electric energy meter field calibrator which comprises a handheld housing, a microcontrol unit (MCU) and a high-precision electric energy metering chip. The microcontrol unit (MCU) and the high-precision electric energy metering chip are mounted in the handheld housing. The microcontrol unit (MCU) is provided with a press button input interface, a liquid crystal display interface and a communication interface. The high-precision electric energy metering chip is connected with the communication interface on the microcontrol unit (MCU). The high-precision electric energy metering chip is provided with a current sampling interface and a voltage sampling interface. The handheld housing is provided with a press button operation interface and a display screen. The press button operation interface is connected with the press button input interface. The display screen is connected with the liquid crystal display interface. According to the handheld electric energy meter field calibrator, the high-precision electric energy metering chip is used as an inner reference, thereby greatly simplifying an inner reference for metering, realizing small weight and low cost of the product, obtaining tool change of equipment and furthermore realizing attractive and concise man-machine conversation operation.
Description
【Technical field】 [0001] The invention relates to the technical field of electric energy meter calibration, in particular to a hand-held field calibrator for electric energy meters. 【Background technique】 [0002] The most basic functions of the electric energy meter on-site calibrator are the two major functions of on-site error calibration and wiring inspection. The on-site calibration of the electric energy meter has the advantages of not needing to disassemble the measuring equipment, not needing to interrupt the measuring equipment, and can truly record the actual impact on site , It can also save manpower and material resources and improve work efficiency. When users raise objections to measuring instruments such as electric energy meters and transformers, on-site verification can be completed without affecting power consumption, and the correctness of wiring can be checked. Therefore, on-site verification of electric energy measurement errors and on-site inspection o...
Claims
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Login to View More IPC IPC(8): G01R35/04
CPCG01R35/04
Inventor 吴勇华张国明黄益锋左苗峰朱小弟蒋勤峰
Owner HAIYAN XINGCHUANG ELECTRONICS CO LTD