Descriptions: _x000D_ The meter is full compliance with national standards GB/T17215.321-2008 and IEC62053 international standard of grade 1 level of the relevant technical requirements of the 3 phase KWh meter, which can directly and accurately measure active energy of the energy consumption , 6 digital display active energy consumption,It has the advantages of convenient meter reading, high reliability, small volume, light weight, beautiful appearance, advanced technology, and installation of 35mmDIN standard guide rail.It has good anti-electromagnetic interference, low power consumption, high accuracy, high overload, high stability, anti - theft and long life. _x000D_ _x000D_ _x000D_ Features: _x000D_ It has the advantages of convenient meter reading, high reliability, small volume, light weight, beautiful appearance, advanced technology. _x000D_ Installation of 35mmDIN standard guide rail._x000D_ _x000D_ This meter is suitable for the measure the 3-phase AC efficient electrical energy of rated frequency 50Hz,used for fixed installation indoors. _x000D_ Apply to the environment temperature of - 25 ~ + 55 , relative humidity is not more than 95%, and in the air without corrosive gases and avoid dust, mold, salt fog, condensation, insects, etc. _x000D_ _x000D_ It has good anti-electromagnetic interference, low power consumption, high accuracy, high overload, high stability, anti - theft and long life. _x000D_ _x000D_ _x000D_ _x000D_ Specifications: _x000D_ Standard: IEC62053-21_x000D_ Display: 6-digit_x000D_ Color: White_x000D_ Voltage: 3 x 220/380V_x000D_ Current: 3 x 20(80A)_x000D_ Frequency: 50Hz_x000D_ Impulse constant: 400imp/kWh _x000D_ Operating Humidity: 95%_x000D_ Operating Temperature:-25 ~ + 55 _x000D_ Size: Approx. 12 x 10 x 6.5cm/4.72 x 3.93 x 2.55inch_x000D_ Weight: 519g_x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ Installation and use:_x000D_ 1. Installation of energy meter required experienced electrician or professional, and determined to read the manual._x000D_ 2. Energy meter should be installed in the indoor ventilated and dry place, adopt 35mmDIN standard guide type installation, the bottom plate of the electricity meter should be fixed in the wall that is strong refractory, and not easy to vibrate._x000D_ 3. Electricity meters should be installed in protective cabinets in places where there are filth and potential damages. _x000D_ 4. Install according to the wiring diagram ,it is best to use a multi-strand copper wire to avoid the failure of the electrical energy meter working or burning down._x000D_ 5. When the electricity meter is correctly connected to the power grid, the power indicator of the meter is light. _x000D_ 6. Electric energy meter should take the thunder protection measures when it is used in the area with more thunder, so as to avoid damaging the electric energy meter by thunder. _x000D_ 7. The load capacity of the energy meter is in the range of 0.05Ib ~ Imax (direct access) or 0.02Ib ~ Imax (through the access type of the transformer),Exceeding this load capacity will cause the meter to be inaccurate or current coil to burn. _x000D_ _x000D_ 8.When the energy meter is used in the transformer, it is the actual electricity consumption that must be multiplied by the transformer ratio after reading the power indicator_x000D_ 9. Data display: 6 digital display_x000D_ 10.Power instructions: A,B,C three LED indicates that the three-phase power supply is normal when the light is on. When a phase voltage is missing, the corresponding pressure indicator light is out._x000D_ 11.PULSE indicator: when the PULSE indicator light is on, the power PULSE is detected. (when a sample signal is detected, the PULSE indicator lights up about 80ms)._x000D_ 12.Reverse phase power instruction: Rev. Indicates that the light is on in the direction of energy consumption. _x000D_ _x000D_ Outline diagram and wiring diagram: _x000D_ _x000D_ _x000D_ Method of measurement:_x000D_ The energy meter is equipped with photoelectric coupling power pulse test output port, is located in a wiring terminal box. Connect the test equipment +5VDC to the terminal of 17 (positive terminal), and the signal line connect to the terminal of 18 (negative terminal)._x000D_ _x000D_ _x000D_ _x000D_ Package Included: _x000D_ 1 x Energy Meter _x000D_ _x000D_ _x000D_ Note:_x000D_ Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering