Which brands of digital display watches are good?
There are countless manufacturers producing intelligent digital display meters in China. At present, Yun Run factories of Hong Kong Changhui Automation System Co., Ltd. (Yunnan Yun Run Instrument Manufacturing Co., Ltd.), Hong Kong Shangrun Precision Instrument Co., Ltd., Shunchang Hongrun Precision Instrument Co., Ltd., Beijing Kunlun Tianchen Instrument Technology Co., Ltd., Beijing Jinlishi Instrument Technology Co., Ltd., Fujian Donghui Intelligent Instrument Co., Ltd., Xiamen Yudian Automation Technology Co., Ltd., Xiamen Anton Electronics Co., Ltd. and Fuzhou Fu Guang Baxter Automation Equipment Co., Ltd. have a high market share.
Characteristics of digital display multifunctional instrument
Multifunctional digital display meter is a multifunctional intelligent instrument with programmable measurement, display, digital communication and power pulse transmission and output, which can complete electric energy metering, electric energy metering, data display, collection and transmission. Multifunctional watt-hour meters are widely used in substation automation, distribution automation, intelligent buildings and internal electric energy measurement, management and assessment. The measurement accuracy is 0.5.
Features are as follows
Measurement: three-phase voltage, current, active power, reactive power, power factor, frequency, active energy and reactive energy.
Measurement: positive and negative active energy, inductive capacitive reactive energy.
Display: three rows of LED digital tubes display high visibility.
Communication: RS485 communication, MODBUS-RTU protocol.
Output: 2 power pulse outputs (pulse constant 10000imp/kwh).
Expansion: the signal can be directly connected from current and voltage transformers, and the input parameter ratio can be programmed on site.
Selection: 4-20mA analog transmission output, switch value and switch value output, which can increase the alarm function of upper and lower limit values exceeding the limit.
Usage: It is suitable for comprehensive monitoring and management of electrical parameters in various incoming circuits and large-capacity distribution circuits.
Installation method of digital display multifunctional instrument
1. On the fixed distribution cabinet, select a suitable position to open an installation hole with an opening size.
2. Take out the instrument, loosen the fixing screw and remove the fixing clip.
3. Insert the instrument into the instrument hole of the power distribution cabinet.
4. Insert the fixing clip of the instrument and fix the positioning screw.
Note: L-N is the auxiliary power supply? Please connect the wires correctly according to the wiring diagram of the instrument shell!
The above small series introduces the characteristics and installation method of digital display multifunctional instrument. I believe everyone has a deeper understanding of the usage, working principle and functional characteristics of digital display meters. Bian Xiao also introduced some brands with good digital display instruments, which were selected mainly according to market share and consumer awareness. If consumers need it, they can consider the products of these brands recommended by Bian Xiao. In fact, digital display meters are widely used in all walks of life and daily life. Of course, we should choose the appropriate digital display meter according to different occasions.
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