3 Phase Digital Frequency Panel Meter High Accuracy Analog Output
4-20ma
1. Product Introduction:
Digital intelligent frequency meter are electric unit measuring
instruments, which are able to measure voltage in transmission &
distribution power system, widely used in power transforming,
distribution automation, intelligent building and power monitoring.
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. Functions:
- Measure three phase frequency in low voltage distribution system;
- Suitable for replacing pointer meter;
- Suitable for HV & HV voltage system;
-. High accuracy IEC62053-21 0.5%;
-. Built in MODBUS-RTU via RS485 port;
-. Optional analog output 4-20mA / 0-20mA
4. Ordering Code:
| Model Name | Basic Data | Model No | Dimension(mm) | Cut-out (mm) |
Three-Phase
Frequency Meter | - LED Display
- Input: Voltage
- Transformation ratio: adjustable
- Measurement: AC frequency
| WD-2FA-□ | 120*120 | 111*111 |
| WD-9FA-□ | 96*96 | 92*92 |
| WD-3FA-□ | 80*80 | 76*76 |
| WD-AFA-□ | 72*72 | 68*68 |
| WD-BFA-□ | 96*48 | 92*45 |
| WD-DFA-□ | 48*48 | 45*45 |
5. Wiring Diagram:
6. Optional Function:
7. FAQ:
Q: Are you trading company or manufacturer ?
A: We are factory and trading company at same time. We have all
kinds of resources in the electrical industry. All the products you
need can be supply with lowest price.
Q: How long is your delivery time?
A: Generally it is 7 days if the goods are in stock. or it is 15-30
days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Sample is available but customers have to pay.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance.
Q: How to send a inquiry for more information ?
A: You can find our contact information on the front page of the
shop.
