Distribution system use LED multifunction ac voltmeter

Item No.: OHD194E-9S4RB
OHD194E-9S4RB:96×96mm
OHD194E-2S4RB:120×120mm
OHD194E-3S4RB:80×80mm
OHD194E-AS4RB:72×72mm
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Description

I.Brief introduction for distribution system use LED multifunction ac voltmeter

This product LED multifunction ac voltmeter adopts the most modern microprocessor and digital signal processing technology, which can measure three-phase voltage, current, power, grid frequency and other common power parameters in the power grid. At the same time, it also has electric energy accumulation, energy pulse, cross-line alarm, switch input and output, simulation transmission output and network communication functions. With a friendly man-machine interface.

This product has a very high cost performance and can directly replace conventional measuring indicator instruments, energy meters, multi-function network power meters and related auxiliary units. As an advanced intelligent, digital grid front-end acquisition component, which can be applied to various control systems, energy management systems, substation automation, distribution network automation, residential power monitoring, industrial automation, intelligent buildings, intelligent switchboards, In the beginning cabinet, it has the characteristics of convenient installation, simple wiring, convenient maintenance, small engineering quantity and field programmable input parameters. LED multifunction ac voltmeter can complete the networking of different PLC and industrial control computer communication software in the industry.
II.Main Technical Instructions for LED multifunction ac voltmeter

Performance

Parameters

Input measurement  display

Network

3-phase 3-lines, 3-phase 4-lines

Voltage

Rated value

AC100V, 400V(Please indicate when place order)

Overload

Duration:1.2 times  Instantaneous: 10 times /10s

Power consumption

<1VA(Each phase)

Impedance

≥500kΩ

Accuracy

RMS measurement, accuracy level 0.5

Current

Rated value

AC1A, 5A(Please indicate when place order)

Overload

Duration:1.2 times
Instantaneous:10 times/10s

Power consumption

<0.4VA(Each phase)

Impedance

<2mΩ

Accuracy

RMS measurement, accuracy level 0.5

Frequency

40~60Hz, accuracy 0.1Hz

Power

Active, apparent power accuracy is 0.5, reactive power accuracy is 1.5

Electric energy

Four-quadrant measurement, active energy accuracy 1.0, reactive energy accuracy 2.0

Display

Programmable, switching, loop (LED) display

Power supply

Power supply range

AC220V   AC/DC 85~270v

Power consumption

≤5VA

Output

Digital interface

RS-485, MODBUS-RTU protocol

Pulse output

2-way energy pulse output, optocoupler isolator

Discrete input

4-way switch input, dry contact mode (optional)

Switch output

4-channel digital input, optocoupler relay (optional)

Analog output

4-channel simulation output, 4~20mA/0~20mA (optional)

Environment

working environment

-10℃~55℃

Storage environment

-20℃~75℃

Safety

Withstand voltage

Input / Power > 2kV, Input / Output > 2kV, Power / Output > 1kV

Insulation

Input, output, power supply to chassis >50MΩ

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