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 | - LED Display
- Input: From sensor output
- Transformation ratio: adjustable
- Measurement: Pressure
| 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.
