General
The Lovadon multifunction energy meter is a sophisticated device designed to measure various electrical parameters. It can accurately measure voltage (V), current (A), active power (W), reactive power (var), apparent power (VA), power factor (Cosφ), and frequency (Hz). The meter boasts a digital display for clear and easy reading of all measured values.
Moreover, it features several buttons for navigating through different measurement modes and settings. The compact and sturdy design of this meter makes it ideal for installation in various electrical systems, enabling efficient monitoring and control of energy consumption.
Its advanced functionality includes the ability to display real-time data and provide insights into energy usage patterns, aiding in the management and optimization of electrical systems.
Technical Parameters
| Measuring accuracy | voltage | 0.5level |
| current | 0.5level |
| Active power | 0.5level |
| Reactive power | 0.5level |
| Power factor | 0.5level |
| Frequency | ±0.02Hz |
| Active electric energy | class 1 or class 2 |
| Connection Mode | three phase four wires,three phase three wires |
| Rated voltage | AC57.7V, AC100V,AC220V. AC380V |
| Rated current | AC1A,AC5A |
| Overload Voltage | 1.2times(continued),2times/I second(instantaneous) |
| Overload Current | 1.2times(continued),10times/5 second(instantaneous) |
| Impedance | Voltage> 300KΩ, Current<20mΩ |
| Frequency | 45-65Hz |
| Power Consumption | Voltage<1VA per phase,Current<0.4VA per phase |
| Power supply | Working Range | AC/DC 80-270V |
| Power Consumption | <4VA |
| Function module | communication interface | 1 way RS~485communication,Modbus-RTU protocol |
| Baud Rate | 2400~9600bps |
| Switch input | 4ways |
| Switch onput | 4ways(capacity:AC250V/1A,DC30V/5A) |
| Electric energy pulse output | 2 ways(constant:3200imp/kwh(kvarh)) |
| Transmission Onput | 4ways(analog onput:0/4-20mA or 0-5/10V) |
| Environment | Working Temperature | -10°C~ + 55°C |
| Storage Temperature | -25°C~ +70°C |
| Relative Humidity | ≤93%,no corrosive gas |
| Altitude | ≤2500m |
Molel NO. Function
| Measurement | Extended Function | Frame
size
(mm) | Hole
Size (mm) |
A,V,Hz,W,
Var,Cos, Kwh,Kvar | Multirate
| Harmonic
measuring | Switching
Intput | Switching
Output | Analog
Output | Communi cation
interface | LED | LCD |
| LST12-3E | √ | ― | ― | 4 | 4 | 4 | 1 | √ | ― | 120*120 | 111*111 |
| LST12-3EY | √ | ― | ― | 4 | 4 | 4 | 1 | ― | √ |
| LST12-3FEY | √ | √ | ― | 4 | 4 | 4 | 1 | ― | √ |
| LST12-3HWY | √ | ― | √ | 4 | 4 | 4 | 1 | ― | √ |
| LST96-3E | √ | ― | ― | 4 | 4 | 4 | 1 | √ | ─ | 96*96 | 92*92 |
| LST96-3EY | √ | ― | ― | 4 | 4 | 4 | 1 | ― | √ |
| LST96-3FEY | √ | √ | ― | 4 | 4 | 4 | 1 | ― | √ |
| LST96-3HWY | √ | ― | √ | 4 | 4 | 4 | 1 | ― | √ |
| LST80-3E | √ | ― | ― | ― | ― | ― | 1 | √ | ─ | 80*80 | 76*76 |
| LST80-3EY | √ | ― | ― | ― | ― | ― | 1 | ― | √ |
| LST70-3E | √ | ― | ― | ― | ― | ― | 1 | √ | ─ | 72*72 | 68*68 |
| LST70-3EY | √ | ― | ― | ― | ― | ― | 1 | ― | √ |
| LST48-3E | √ | ― | ― | ― | ― | ― | 1 | √ |
| 48*48 | 45*45 |
LST96-3E-3EY signal connection diagram
LST192(ND194)LST96-3E-3EY terminal figure 1
LST192(ND194)LST96-3E-3EY terminal figure 2
Yueqing Lovadon Electric Co., Ltd.
