Led Display Digital Measurement Meter , Digital Tachometer Gauge
With Signal From Sensor
1. Product Introduction:
WD-BS 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 Parameters:
| 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. Selling Points:
1).High precision measurement of Single- phase Rotation Speed in
power distribution system and other applications.
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 Code:
| Model Name | Basic Data | Model No | Dimension(mm) | Cut-out (mm) |
Single-Phase
Digital Tachometer | - LED Display
- Input: From sensor output
- Transformation ratio: adjustable
- Measurement: Speed of Revolution
| WD-9S-□ | 120*120 | 111*111 |
| WD-3S-□ | 96*96 | 92*92 |
| WD-AS-□ | 80*80 | 76*76 |
| WD-BS-□ | 72*72 | 68*68 |
| WD-DS-□ | 48*48 | 45*45 |
5. Wiring Diagram:
6. Package and Shipment:
7. Know More About us?
Wei Dian Union is a new company, eastablished in the year of 2015,
we have 15 technical engineer and 10 sales man, including domestic
and international sales. Our team is young, which guarantee us more
vitality.
- Is your company manufacturer or trading company?
Yes, we are the manufacturer, we buy house and develop moudles all
by ourselves.
- What is the warranty of your products? and how about your quality?
All of our meters have 18 months warranty, and we cooperate with
the university to develop new items and quality control, besides
our own technical team.
- How about your payment term and shipment?
We accept T/T, L/C and western union, prefer to TT, delivery date
should be within one week after payment.
- What’s your advantage? Why should I choose your company?
Price: Compared with other famous company, our cost is much lower;
Quality: We have strict quality control, each meters have to accept
life-time testing & inspection.
Sales supports: We are not big company, so our policy is flexible,
quick action to any requirements.
