Specifications

1. Digital power meter measures voltage, current, power, power factor, kWh, kvarh

2. LS485/ Modbus

3. Power quality analysis

LH-DA digital Power Meter Features:

1. Suit for LV/ HV voltage system

2. Compact design with all real-time measurement

3. Consist of basic unit and optional modules

4.10 years back-up of integrated energy data

5. Large LCD, high brightness, auto-scrolling

6. High accuracy, V or I is 0.5%, kWh is class 1

7. CT and PT programmable

8. Pluggable terminals, easy to install

9. Panel size: 96 x 96mm

10. Password protect

LH-DA digital Power Meter Basic Function:
Provide one RS485 communication, measures and display real-time parameters:
1. Voltage- Ua, Ub, Uc, Uab, Ubc, Uca
2. Current- Ia, Ib, Ic, In
3. Active power Pa, Pb, Pc, ∑ P
4. Reactive power Qa, Qb, Qc, ∑ Q
5. Apparent power- Sa, Sb, Sc, ∑ S
6. Power factor- PFa, PFb, PFc, ∑ PF
7. Frequency
8. Active energy- KWh (4 quadrant)
9. Reactive energy kvarh (4 quadrant)
10. Demand and Max. Record for I, P, Q, S
11. Unbalance rate for U, I
12. Max. / Min. Value
LH-DA Digital Power Meter DI/ DO Modules:
1.4 status input + 4 relay output
2.8 status input + 2 relay output
3.8 status input + 2 pulse output
4. Profibus communication module
LH-DA Digital Power Meter Optional Function:
1. Up to 31st harmonic analysis, K factor, THD
2. SOE (event log)
3. One 4~20mA analog output