Discription:

　　ZJGY900 LED multi-function meter is developed based on our current patents and technology. It is a intelligent multi-function instrument which can do the programable measurement, display, digital communication, Power pulse transform output. The accuracy of measurement is 05 grade so that it can complete the electrical measurement, electrical calculation and data display, collection, transmission well. And all the data information is live displayed by the LED, the remote RS-485 digital interface communication supports a variety of communication protocols. The product is small in size, light in weight and easy to install. In order to meet the different needs of every customers, Our company has designed a variety of dimensions for customers to choose from. The product is widely used in power transmission and transformation automation, power distribution automation and intelligent electriccal measurement, management and assessment.

　　Function：

　　Measurement: Three-phase voltage, current, active power, reactive power, power factor, grid frequency, active power and energy, reactive power and energy, positive and negative active power and energy, inductive capacitive reactive power and energy.

　　Display: 3 rows of LED numberal tube, high visibility.

　　Communication: RS485 communication，MODBUS-RTU protocol.

　　Output: 2-channel power pulse output (pulse constant 10000imp/kwh).

　　Expansion: Access the signal directly from the current and voltage transformer, and the input parameter ratio can be set programmatically on the spot.

　　Configuring: Additional analog 4-20mA output, switch input, switch output, upper and lower limit alarm function.

　　Application: Suitable for the complete monitoring and management of electrical parameters in all kinds of incoming circuits and large capacity distribution circuits.

　　Input：

　　The product applies the calculation mode that each measurement channel is collected separately, which ensures complete consistency and symmetry in use. It has a variety of wiring modes and is suitable for different load forms (below is for reference).

　　1. Voltage input: The working voltage input should not be higher than the rated input voltage of the product (100V or 400V), Otherwise PT shall be considered.

　　2. Current input: The standard rated input current is 5A, so external CT should be used if the input current is greater than 5A. If other instruments are connected to the using CT, the wiring shall be connected in series. Before the current input of the product is removed, the CT primary circuit or the secondary circuit must be disconnected first. It is suggested to use the terminal block, and do not connect to the CT directly so as to facilitate the disassembly and assembly.

　　3. Make sure the input voltage and current correspond, phase sequence is consistent, direction is consistent, otherwise the value and symbol error will be displayed.

　　4. The configuration of the instrument input network is determined by the CT ratio of the system, the three-phase, three-wire, two-element mode is selected in the case of two CT, and the three-phase four-wire three-element mode is selected in the case of three CT. The input network NET set in instrument wiring or programming should be the same as the measured load connection, otherwise the voltage or power measured by the instrument will not be correct. In the three-phase three-wire, the voltage measurement and display is the line voltage, while in the three-phase four-wire, the voltage measurement shows the phase voltage.

　　Installation size：

　　Wiring(ZJGY900-9 as a example)