I.The brief introduction of energy-efficient control panels use LED multifunctional ammeter
The Energy-efficient control panels use LED multifunctional ammeter is an ideal device for power quality monitoring. The meter has the function of simultaneously measuring current, voltage, frequency, active power, reactive power, apparent power, electric energy, power factor, etc. in the power grid. It is suitable for distributed detection of transformers, generator sets, capacitor banks and motors, and on-site monitoring of power grids and automation control systems. Energy-efficient control panels use LED multifunctional ammeter with CE certificate.
Multi-function power meters can also be used in factory automation and building automation. It can measure all the power parameters, and can be easily applied to the measurement and data recording of AC-opening and industrial power supply distributed measurement and control systems of various ranges. On the basis of our company's multi-function power meter, a simple monitoring system can be established by simply adding a central communication master display software based on IPC industrial computer.
Multi-function power monitor can replace many traditional panel or digital measuring instruments (such as ammeter, voltmeter, power meter, power factor meter, frequency meter, etc.), which can greatly reduce system cost, facilitate field wiring and improve system reliability. . The multi-function power monitor is equipped with a serial port (RS-485), which allows connection to an open-structure computer network; the Modbus-RTU communication protocol is used to facilitate computer programming or reading.
II.The main technical parameter of energy-efficient control panels use LED multifunctional ammeter
|
Performance |
Parameter |
||
|
Input measurement display |
Network |
Three-phase three-wire, three-phase four-wire |
|
|
Voltage |
Rated value |
AC100V/220V/380V/500V |
|
|
Overload |
Continuous: 1.2 times Instantaneous: 2 times / 1S |
||
|
Power consumption |
＜1VA(Per phase) |
||
|
Impedance |
＞500KΩ |
||
|
Accuracy |
0.5 |
||
|
Current |
Rated value |
AC1A/AC5A |
|
|
Overload |
Continuous:1.2 times Instantaneous:10 times/5S |
||
|
Power consumption |
＜0.4VA(Per phase) |
||
|
Impedance |
＜2mΩ |
||
|
Accuracy |
Class 0.5 |
||
|
Frequency |
40-60Hz Accuracy:0.1Hz |
||
|
Power |
Active, reactive, accuracy:1.0 |
||
|
Electric energy |
Active power accuracy class:1.0 Reactive power accuracy class:1.0 |
||
|
Display |
Programmable switching (LED) display |
||
|
Power supply |
Power supply range |
AC220V or A/DC80V~260V |
|
|
Power consumption |
≤2VA |
||
|
Output |
Digital interface |
RS-485、MODBUS-RTU protocol |
|
|
Pulse output |
2 way energy pulse output |
||
|
Environment |
Working environment |
-30~50℃ RH20%~90%(No condensation) |
|
|
Storage environment |
-45~75℃ RH20%~90% |
||
|
Security |
Power frequency withstand voltage |
2KV/1min AC Valid value |
|
|
Insulation resistance |
≥100MΩ |
||
III.Functional module of LED multifunctional ammeter
*Communication interface: standard 1 channel RS-485 communication, Modbus-RTU protocol Baud rate: 9600bps
*Switching output: support 4 relay outputs, capacity: AC250V/5A, DC30V/5A
*Digital input: support 4 dry node inputs
*Transmission output: support 4 way ANA outputs, 4-20mA/0-20mA or 0-5/0-10V
*Power pulse output: 1 active energy, 1 reactive energy pulse output, constant: 3200imp
OH194E-2S4B: 120×120mm
OH194E-3S4B: 80×80mm
OH194E-AS4B: 72×72mm
OH194E-DS4B: 48×48mm
OHD194E-2S4: 120×120mm
OHD194E-3S4: 80×80mm
OHD194E-AS4: 72×72mm
OHD194E-2S4R: 120×120mm
OHD194E-3S4R: 80×80mm
OHD194E-AS4R: 72×72mm
OHD194E-2S4RB:120×120mm
OHD194E-3S4RB:80×80mm
OHD194E-AS4RB:72×72mm