Name: EM738 380v watt meter 3 phase 4 wire meter sub-meter
Brand: Fineco
Availability: InStock

Product Details

EM738 380v watt meter 3 phase 4 wire meter sub-meter

Benefits and Main Features

Three phase metering7 DIN modules

Bi-directional active energy measuring,4-quadrant reactive measuring for latest 12 months

Records MD and its occurent time for latest 12 months

Instant Volt, Amp, Power factor, Frequency, Active power, Reactive power, Apparent power

TOU of 4 tariffs, up to 12 time periods per day

Summer time switch

load profile(option)

Load control Relay inside

Terminal cover open record(option)

Direct metering up to 100A,CT version is available

Clock time verification function

Isolate pulse output (DIN43864)

LCD display, 6 integer 2 decimal, meter display when power fails

Large clear backlight display

Optional single-phase model

RS485 communication port, modbus protocol

IR port Program by button on the nameplate Memory back-up (EEprom)

Meter specification

	Direct connected meters	Transformer connected meter
Memory back-up	EEprom	EEprom
Environment resistance to heat and fire	Terminal 960°C Cover 650°C	Terminal 960°C Cover 650°C
Internal real-time clock with battery
Time-keeping accuracy	<0.5s/day
Clock operating with battery	>15 years
Power off clock running time	>5 years
Enclosure material

Relay
Max junction voltage	AC250V DC30V
Max junction current	3A
Battery
Battery volume	1200mAh
Battery life	≥3years
Width (mm)	126	126
Height (mm)	104.5	104.5
Depth (mm)	60	60

	Direct connected meters	Transformer connected meter
Voltage(v)	3×57.7/100V	3×57.7/100V
	3×220/380V	3×220/380V
	3×230/400V	3×230/400V
Operational voltage	±70%Un	±70%Un
Current(A)
- Iref	10A	1.5
-Itr	1A	0.15A
-Imax	100A	6A
-Imin	0.5A	0.015A
-Ist	40mA	3mA
Power consumption of current circuits(VA)	< 0.01	< 0.01
Power consumption of voltage circuits(W)	< 1.3W	< 1.3W
General data
Frequency (Hz)	50/60	50/60

Measuring Function

On the EM738’S front panel, there are three LED, active/reactive energy pulse light, and alarm indicator lights .

Meter can measure import active energy , export active energy , four-quadrant reactive energy.

Demand function

The meter can calculate the forward and reverse active/reactive demand and the demand occurrence time.

Data store function

The meter can store total active energy, forward/reverse active total energy and time-sharing energy. Also include the reactive forward/reverse total energy and time-sharing energy, four-quadrant reactive total energy and time-sharing energy.The meter can store current and previous 12months data.

tou function

The internal clock circuit of energy meter has time automatic switching function. Calendar, clock and rate can be set and adjustment through RS485, infrared interface. At least 4 tariffs and 12 time interval can be set within a natural day

Electricity parameters measurement and monitoring

The meter can measure: voltage, current, active power, reactive power, apparent power,power factor and frequency of each phase. Also can display the direction of the current and power. The resolution of frequency is 0.01Hz. the accuracy of Voltage,current,activepower,reactive power and apparent power is 1%.

Switching off display

When the power is off, user can read the meter by pressing button on the panel.

Load record

The meter can set up the “load curve” and “the start time of load curve” by serial interface. Users can choose 6 types data to record by timing in order to make the load curve.

Load control (disconnect switch)

The meter has an internal relay output interface to control the Load. The meter can set up the power limit and the delay time of switch off and on when the power is over the limit.

Summer/winter time switch permit/prohibition
Smart meter provide automatic summer/winter time switch accomplished at 02.00 on the last Sunday of March(forward 1 hours) and at 03:00 on the last Sunday of October(back 1 Hours).

Communication Function

With an infrared COM and a RS485 COM. Its physical layers are independent with each other.The meter can realize data acquisition, broadcast time setting, read, program and manage through hand-held terminals, data acquisition terminal, test equipments and computers.

Using communication function , the smart meter can connection to the Fineco Cloud.The reading can be viewed through the web browse at any time.

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