Wei Dian Union(Hubei) Technology Co.,Ltd.
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Wd-3l Digital Measurement Meter 80*80mm 4-20ma Sensor Output Long Lifespan
1. Product Description:
WD-3L Single-phase rpm meters are used for measuring and monitoring the power distribution system. This series of meter can measure rmp in power distribution or other applications.
It combines the measurement, the analysis and the operation together, makes the information become clearer, and the operation become easier.
2. Technical Index:
| Technical Index | Value | |
| Input | Nominal value | Voltage AC:100V,220V,380V; Current AC: 1A/5A |
| Overload | Continuous: 1.2 time/1s; Instant: 10 time/1s | |
| Frequency | 45-65Hz | |
| Consumption | <0.5VA | |
| Accuracy | 0.2% | |
| Function | Display | LED or LCD |
| Communication | RS485,Modbus-RTU protocol | |
| Alarm | One channel passive relay; Contact capacity: 3A/30VDC,3A/250VAC, high, low, unbalance alarm etc. | |
| Analog | DC4-20mA, DC0-20mA(Load<500Ω), DC0-5V(Load >1kΩ) | |
| Input: 2-4 channel dry contacts, power inside, optocoupler insolation | ||
| Output: 2 switch output,normal open contact of relay | ||
| Contact capacity: 3A/30VDC,3A/250VDC | ||
| Power Supply | Voltage Range | AC/DC85-270V |
| Power consumption | <5VA | |
| Insulation resistance | ≥100MΩ | |
| Power Frequency Withstand Voltage | 2kv/1min | |
| Environment | Temperature | Opertation: -25-55℃, Storage: -20℃-75℃ |
| Humidity | ≤93RH, no condensation, without corrosive | |
| Attitude | ≤2500m | |
3. Main Features:
1).High precision measurement of Single - phase pressure and other non-electric measuring units.
2). To provide a nixie tube or liquid crystal display,local data query.
3). Current and voltage gain programmable settings.
4). Support for RS- 485 communication, Modbus-RTU protocol.
5). Support for switching input, output, analog quantity transmitting output.
6). Auxiliary power supply: AC/DC 80V~270V, AC220V.
7). A variety of shapes, to meet the different req-uirements of the cabinet body electric circuit.
4. Ordering Guideline:
| Model Name | Basic Data | Model No | Dimension(mm) | Cut-out (mm) |
| Single-Phase Digital Mpa Meter |
| WD-9L-□ | 120*120 | 111*111 |
| WD-3L-□ | 96*96 | 92*92 | ||
| WD-AL-□ | 80*80 | 76*76 | ||
| WD-BL-□ | 72*72 | 68*68 | ||
| WD-DL-□ | 48*48 | 45*45 |
5. Wiring Connection And Ternimal Diagram:
6. Installation And Storage:
Notice: Never install the meter with power!
Hole Size: 76*76mm Vertical installation.
7. Applications:
Digital intelligent meter are electric unit measuring instrument with function of programmable measurement,display and digital communication, etc. Utilize AC/DC sampling technology, be able to measure current, voltage, power, power factor, frequency in power transmission & distribution system,
widely used in power transforming, distribution automation, intelligent building and power monitoring,
site-inspection & remote monitoring also available.