GW-LM96 Intelligent Multifunction Meter
GW-LM96 series three-phase digital meters are built around industrial-grade microprocessors, featuring fast processing speed and high cost performance. The GW-LM96-3MP is a three-phase multifunction meter, the GW-LM96-3I is a three-phase ammeter, and the GW-LM96-3V is a three-phase voltmeter. The se
Industry Certifications & Standards
ISO 9001
Quality Management
Certified
EU Compliance
MID
Measuring Instruments
RoHS
Hazard-Free Materials
IEC 62053
Metering Accuracy
Listed
Safety Standard
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About the Power Meter
The digital power meter provides accurate measurement, reliable performance, and flexible functions for power monitoring and energy management.
| Parameter | Value |
|---|---|
| Voltage Inputs (V1, V2, V3, VN) | |
| Standard Un | 240ULN/415ULL |
| Range | 42V to 264V ULN |
| Overload | 1.1xUn continuous |
| Burden | <0.02VA per phase @ 240ULN |
| Measurement Category | CAT III up to 300V |
| Frequency | 45-65Hz |
| Current Inputs (I11, I12, I21, I22, I31, I32) | |
| Standard In | 5A/1A |
| Range | 0.1% to 120% In |
| Starting Current | 0.1% In |
| Overload | 1.2xIn continuous,10xIn for 1s |
| Burden | <0.25VA per phase @ 5A |
| Power Supply (L+, N-) | |
| Standard | 95-250VAC/DC, ±10%, 47-440Hz |
| Burden | <2W |
| Overvoltage Category | OVC III up to 300V |
| Digital Inputs (DI1, DI2, DI3, DI4, DIC) | |
| Type | Dry contact, 12VDC internally wetted |
| Sampling | 1000Hz |
| Hysteresis | 1ms minimum |
| Digital Outputs (DO11, DO12, DO21, DO22) | |
| Type | Form A Mechanical Relay |
| Loading | 5A @ 250VAC or 30VDC |
| Load Type | Resistive |
| Pulse Outputs (E+, E-) | |
| Type | Form A Solid-State Relay |
| Isolation | Optical |
| Pulse Width | 80ms±20ms |
| Max. Load Voltage | 50VDC |
| Max. Forward Current | 50mA |
| Optional Analog Outputs | |
| Type | 0/4-20 mA |
| Loading | 500Ω maximum |
| Overload | 24mA maximum |
| Environmental Conditions | |
| Operating Temp | -25°C to 70°C |
| Storage Temp | -40°C to 85°C |
| Humidity | 5% to 95% non-condensing |
| Atmospheric Pressure | 70 kPa to 106 kPa |
| Altitude | < 3000m |
| Pollution Degree | 2 |
| Accuracy | |
| Voltage | ±0.2% |
| Current | ±0.2% |
| Inc | ±1.0% |
| P | ±0.5% |
| Q | ±1.0% |
| S | ±1.0% |
| kWh | Class 0.5S |
| kvarh | Class 1 |
| PF | ±0.5% |
| Frequency | ±0.02Hz |
| AO | ±1.0% |
Product Overview
GW-LM96 series three-phase digital meters are built around industrial-grade microprocessors, featuring fast processing speed and high cost performance. The GW-LM96-3MP is a three-phase multifunction meter, the GW-LM96-3I is a three-phase ammeter, and the GW-LM96-3V is a three-phase voltmeter. The series is especially suitable for distribution cabinets with compact installation space, helping meet the stringent space requirements of low-voltage cabinets and floor distribution boxes while reducing investment and installation space.
Anatomy of Precision
GW-LM96-3MP (Multifunction Meter)
Basic Measurements
ULN, ULL per phase and average
Current per phase and average with calculated neutral
P, Q, S, PF per phase and total
Total RMS kWh, kvarh Import / Export / Net / Total, and kVAh Total
Per-phase kWh, kvarh Import / Export
Frequency
Advanced Measurements
U and I THD, TOHD, TEHD, TH (RMS), and individual harmonics up to 31st
U and I sequence, unbalance and phase angle
kvarh Q1–Q4
P & I present demand, predicted demand, and max. demand with timestamp
One TOU schedule
12 seasons
4 daily profiles, each with 14 periods in 15-minute interval
6 tariffs, each providing kWh import
12 monthly recording of kWh / kvarh import as well as kWh import per tariff
Setpoints
6 user programmable setpoints
Monitoring parameters include voltage, current, power, P demand, unbalance, phase reversal and THD
Configurable thresholds, time delays and DO triggers
Max./Min. Log
Max./Min. log with timestamp
For real-time measurements such as voltage, current, Inc, frequency, P, Q, S, PF, unbalance and THD
Configurable for this month & last month, or since last reset & before last reset
SOE Log
16 events time-stamped to ±1ms resolution
Setup changes, setpoint and DI status changes, and DO operations
Inputs and Outputs
4 digital inputs
2 Form A mechanical relays
1 Form A solid-state relay pulse output
Optional one channel 0/4–20mA analog output
Communications
Optically isolated RS-485 port at max. 38,400 bps
Standard Modbus RTU support
GW-LM96-3I (Ammeter)
Basic Measurements
Current per phase and average
Setpoints
6 user programmable setpoints
Monitoring parameters include current
SOE Log
16 events time-stamped to ±1ms resolution
Setup changes, setpoint and DI status changes, and DO operations
Communications
Optically isolated RS-485 port at max. 38,400 bps
Standard Modbus RTU support
GW-LM96-3V (Voltmeter)
Basic Measurements
ULN, ULL per phase and average
Frequency
6 user programmable setpoints
Monitoring parameters include voltage, frequency
Communications
Optically isolated RS-485 port at max. 38,400 bps
Standard Modbus RTU support
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