Performance Characteristics |
High precision measurement of single phase voltage, single phase current, active power, reactive power, apparent power, power
factor, frequency of electric parameters |
Forward and reverse active or reactive energy measurement |
Division of electric energy metering, time-sharing power timing
meter reading |
Measurement of three-phase voltage, three-phase current total
harmonic distortion (THD), 2-31 odd harmonic component |
Provide the digital tube display, local data query |
Menu button intuitive, simple operation |
Current, voltage gain programmable setting |
Programmable voltage ratio |
Support for fire control, remote cut off the fault circuit |
Provide multiple loop control nodes, can be used for the alarm,
trip control |
Support for RS-485 communication, Modubus-RTU protocol |
Support for switching input, output, analog quantity transmitting
output |
Convenient installation, wiring is simple, small engineering
quantity |
A wide range of AC/DC power supply: AC/DC 80-270V |
To be completed by SCADA, PLC in a variety of communications
software network |
Technical Index |
|
Accuracy of measurementent | voltage level 0.5, current level 0.5, active power 0.5, reactive
power level 0.5,Frequency ±0.02Hz, active electric energy class 0.5s or class 0.2s,
reactive energy grade 1 or grade 2, power factor 0.5 |
Signal input | Connection mode of four phase three wire, three phase three line |
| Rated voltage of AC 57.7V, AC 100V, AC 220V, AC 380V |
| Over load 1.2 times ( Continued ), 2 times / second ( instantaneous
) |
| Power <1VA/ phase |
| Impedance >300KΩ, current: <20mΩ |
| The frequency of 45~65Hz |
Auxiliary power supply | Working range of AC/DC 80V~270V |
| Power consumption <4VA |
Function module | Communication interface 1 way RS-485 communication, Modbus-RTU
protocol |
| Baud rate: 1200~9600bps, the default 2400bps |
| Switch input support 4 stem node input |
| The switch output support 3 relay output, capacity: AC 250V/5A, DC
30V/5A |
| Transmission output support 3 analog output: 0/4~20mA or 0~5/10V |
Environment | Working temperature:-10°C ~+55°C |
| Storage temperature:-25°C ~+70°C |
| Relative humidity is less than 93%, no corrosive gas |
| Elevation≤2500m |
Safety | Insulation resistance >100MΩ |
| AC withstand voltage AC 2KV |
Electromagnetic compatibility | ESD level 4 |
| Electrical fast transient burst level 4 |
Selection of Specification |
Digital Panel Meter with A V Hz Cos W Var Kwh Varh(9999 display
programmable) |
Model NO. | Display | Frame size(mm) | Hole size(mm) | Communication interface |
RH-D3Y | LCD | 96*96 | 92*92 | Yes |
RH-D7Y | LCD | 72*72 | 68*68 | Yes |
RH-D2Y | LCD | 120*120 | 111*111 | Yes |
