Main specification and technical parameter

2.1 Specification of electric energy meter:

A 400imp/kWh×（）

A 400

imp/kWh

×

0.05 Ib~1max

level

level0.1 Ib~1max0.05 Ib~1max±±

Instrument Type

accuracylevelaccuracy

level

Direct access type0.003Ib0.004 IbConnected via transformer0.002 Ib0.003 Ib2.3 Submersion10When there is no current in the current circuit of the energy meter and the voltage applied to the voltage circuit is at the rated value115%The test output of the electric energy meter should not generate more than one pulse.2.4 Insulation performanceThe waveform that all lines of the electric energy meter can withstand between the outer shell is

1.2//50μ

sThe peak value is6KVPulse voltage, continuous tests at different polarities

Secondly, there is no occurrence of arc discharge or breakdown. The frequency that all circuits of the electric energy meter can withstand between the case or the metal parts that can be touched outside the case is50HzThe actual sine waveform AC voltage

2KVThe test lasted for one minute without breakdown.2.5 Working voltage limit:1070~130%Ub

2.6 Power consumption: ≤

2Wand10VA

32.7 Display

: LCD

display

2.8 Data Storage

:After power failure, data should be saved at leastYear.

2.3 Digital Communication:

The instrument provides asynchronous half duplex

RS485

Communication interface, connected to the upper computer or backend monitoring system.Installation and use3.1 Installation precautions and methodsWhen the electric energy meter is taken out of the original packaging box, if damage is found to the inner packaging or outer shell, do not install or power on the meter. Please contact our technical service department3.1.2 Experienced electricians or professionals are required to install the energy meter and ensure that they have read this manual thoroughly.

3.1.3 The electric energy meter should be installed in a ventilated and dry indoor area, using

35mmDINStandard rail installation.3.1.4 When installing wiring, follow the wiring diagram on the terminal cover of the electric energy meter or the corresponding wiring diagram in this manual. It is recommended to use multi strand copper wire to avoid abnormal operation or burning of the electric energy meter due to poor contact.3.2 Instructions for use3.2.1 When using an electric energy meter in areas with frequent lightning strikes, lightning protection measures should be taken to avoid damaging the meter due to lightning strikes.

3.2.2 The load capacity of an electric energy meter is

0.05 Ib~1max

(Direct access type) or0.02 Ib~1maxExceeding this load capacity between (connected through transformers) will result in inaccurate measurement of the energy meter or burning of the current coil due to heating.3.2.3 When an electric energy meter is used with a transformer, that is, an electric energy meter connected through a current transformer must multiply its electric energy reading by the transformer multiplier to obtain the actual electricity consumption.3.2.4 Pulse indication:PULSEWhen the indicator light is on, it indicates that a power pulse has been detected (when there is a sampling signal, the pulse indicator light will light up approximately)80ms）3.2.5 Data Display Board Format3.2.6 LCD display types, as follows:All battery information is displayed in a cyclic manner in order, as follows:phase voltage（UA、UB、UC, UnitV）；three-phase current（IA、IB、IC, UnitA）；Total active power（Passemble, UnitKW）；Total reactive power（qassemble, UnitKvar）；Total apparent power（Sassemble, UnitKVA）；Power factor（PF，LEmotionally,CCapacitive);frequency（F,unitHz）；Total active electrical energy（currentTotal electricity consumptionunitKW h）；Positive active energy（Current positive battery levelunitKW h）；Reverse active energy（Current anti electricity levelunitKW h）；Total reactive power（currentTotal electricity consumptionunitK varh）；Positive reactive power（Current positive battery levelunitK varh）；Reverse reactive energy（Current anti electricity levelunit

Kvarh）；Electric energy pulse constant

4)

；

Communication baud rate（

bd

）

.

Total energy consumption display

0.00-

5For example, in the following figure: The total electricity value is

123456.01KWhcurrentassemblequantity of electricityKW h

6Outline drawing and wiring diagram

4.1 Outline drawing4.2 Wiring diagramThree phase four wire, direct type (voltage 3X220/380V, current ≥ 3X5 (20) A)* Number end, for the incoming line end

Three phase four wire, current mutual inductance type (voltage 3X220/380V, current 3X1.5 (6) A)* Number terminal, which is the current input terminalThree phase three wire, direct type (voltage 3X220/380V, current ≥ 3X5 (20) A)* Number end, for the incoming line endThree phase three wire, current, voltage mutual inductance type (voltage 3X100V, current 3X1.5 (6) A)* Number terminal, which is the current input terminalAttention; Three phase four wire and three-phase cannot be used interchangeably.Measurement method