| 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 |
