S7-330 electricity meter to obtain CCC certification 188,7998,7699

Jiangxi Huajian Power Industry Co., Ltd. developed the production of S7-330 multifunction integrated power meter is a power to be tested parameters (such as current, voltage, power, frequency, power factor and other signals) into direct current, DC voltage and isolator output analog signal or a digital signal. The new international standard analog current transducer output value of 4 ~ 20mA two-wire loop to send data and control standard that is easy to accept the instruction of some of the actuators in the process of a wide range of applications. Jiangxi Huajian Power Industry Co., Ltd. of Jiangxi Province is the only electric utility components manufacturers, the company has strong research and development of production technology, product sales of the first, the whole net sales of leading first-class quality, direct selling, interested, please contact: 18879987699 QQ : 2880308219 Jiangxi Huajian Power Industry Co., Ltd. is located in Jiangxi Pingxiang. Specializes in intelligent power distribution system automation equipment research and manufacturing, with advanced equipment and scientific production process, the development of high-voltage load switch, high voltage vacuum circuit breakers, intelligent low-voltage circuit breakers, double power automatic transfer switch, universal frame circuit breakers, CPS control and protection switches, instrumentation, computer integrated protection devices, motor protection, rail meter and other products, products have passed the relevant national testing, made "CCC" certification, "CQC" certification. Has a science and technology building, research and development centers, automated office and standard production workshop, the production line equipped with advanced testing equipment, developed a system to develop software, communication protocols safe, reliable, performance testing and stability, and with the domestic famous universities SCM centers of production Gakken Commonwealth. Emil power industry is divided into four major production companies operating: Electric Automation, high-voltage electrical company, industrial control company, low-voltage electrical company. Jiangxi Huajian Power Industry Co., Ltd. of Jiangxi Province is the only electric utility components manufacturers, the company has strong research and development of production technology, product sales of the first, quality first-class, full network sales leader, direct selling, interested, please contact: 18879987699 QQ: 2880308219 S7-330 multifunction integrated power meter is a power to be tested parameters (such as current, voltage, power, frequency, power factor and other signals) into direct current, DC voltage and isolated analog signal or digital signal devices. S7-330 multifunction integrated power meter is a measurement of the parameters (alternating current, AC voltage, active power, reactive power, active power, reactive power, frequency, phase, power factor, DC voltage, DC current, etc. ) linear scale to convert the DC current or voltage (pulse output) of the measuring instruments. It is widely used in electrical measurement, automatic control and scheduling system, electricity, petroleum, coal, metallurgy, railway, municipal and other departments. The new international standard analog current transducer output value of 4 ~ 20mA two-wire loop to send data and control standard that is easy to accept the instruction of some of the actuators in the process of a wide range of applications. The international community has an analog signal current only standard telemetry. Two wires in the current telemetry circuit, transmitter power supply and shown reading device, including any other resistive sensors and send the power supply wires are connected in series in the loop. Jiangxi Huajian Power Industry Co., Ltd. of Jiangxi Province is the only electric utility components manufacturers, the company has strong research and development of production technology, product sales of the first, top quality, direct selling, network-wide sales leader, interested, please contact: 18879987699 QQ: 2880308219 Extension edit a programmable display, magnification and range measured data can be displayed on the primary side, such as the primary-side current / voltage / power, etc., with an adjustable rate, adjustable measuring range, high accuracy. Direct use of high-precision electrical side of the instrument. 2, RS485 interface, using MODBUS-RTU protocol, IEE-574 international standard four-byte floating-point transport may be connected with the PC, it can simultaneously take 247 electricity meter telemetry, remote control 485, remote, remote adjustment, etc. " four remote "function. With this interface can access PLC equipment, various types of fieldbus control and other devices. 4 works edit electricity meter generic functional block diagram shows a generalized block diagram in electricity meter, according to the technology used, all of the components are not shown in the figure are indispensable. The transmitter measures the figure one voltage and one current signal, usually, the product of the voltage and current signals to power the circuit under test. Electricity meter can measure one voltage as shown in the figure, current and corresponding power of the power transmitter, or measurement of single or multiple voltage voltage transmitter, or measurement of single or multiple current ER transmitter. 5 advantages editing 1, less susceptible to parasitic thermocouples and pressure drop along the wire resistance and temperature drift effect, the transmission line can be very cheap finer twisted pair wire; 2, when the current source output resistance is large enough, the magnetic field sensor coupled voltage wire loop will not have a significant impact, because the current source of interference caused by small, usually using twisted pair can reduce the interference resistance; 3, capacitive interference can cause the receiver resistance of the error, for 4 ~ 20mA two-wire loop, the receiver resistance typically 250Ω (sampling Uout = 1 ~ 5V) that resistance small enough to produce significant errors, therefore, can allowed wire length longer than the voltage telemetry system further; 4 each time a single display device or recording device can be connected to the exchange wire length ranging between different channels, without causing differences in accuracy due to the wire length ranging from; 5, 4mA to zero level, so that the judge open or sensor damage (0mA state) is very convenient. 6, two-wire output port is easy to additional anti-surge and lightning protection devices, is conducive to safe mine explosion. 6 categories edit electricity meter to be measured in accordance with different, it can be divided into current transducer, voltage transducer, transmitter power factor, active power transducer, reactive power transducer and so on. It can be divided into analog output electricity meter and digital output electricity meter. Digital output of the transmitter output often contain more information. In terms of the relative analog, digital has strong anti-interference ability, especially the use of digital signal optical fiber transmission loss and can completely avoid interfering transmission links, for high precision measurement of complex electromagnetic environments. 7 Main Specifications Editor (1) Nominal loop current:. DC4-20mA (static, full-way adjustable) (2) Rated control terminal voltage:. DC0-5V ± 10% (static, full-way adjustable) (3 ) rated voltage:.. + 24V ± 20% (4) Rated control Input Current: ≤100uA (5) Rated power consumption: static 4mA, dynamic time equal to the loop current 20mA (6) non-linear distortion. : 0.1% FS (7) of rated output current drift:. ≤50ppm / ℃ (8) static zero level:. (4mA) adjustment range: 4mA ± 25% (3mA-5mA) (10) Minimum operating voltage: > 15V (11) Operating voltage limit: ≤35V (12) rated output over-current limit protection: internal limit 25mA + 10%; (13) two-wire port transient lightning and surge-current TVS inhibit the ability to protect...: TVS curb the impact of current 35A / 20ms / 1.5KW; (need external 1.5KE35CA transient suppression diode) (14) two-wire port connected to the wrong protection: reverse power protection (requires external 1N4007 diode) (15) Operating temperature: -. 40 ℃ -80 ℃ (16) Storage temperature:. -50 ℃ -100 ℃ Jiangxi Huajian Power Industry Co., Ltd. of Jiangxi Province is the only home in the power electronics manufacturer, the company has a strong R & D technology, national sales of the product first, class quality, direct selling, the whole network sales leader, interested, please contact: 18879987699 QQ: 2880308219