Power Quality & Energy Metering
Multifunction Digital Panel Meters
High-precision DIN 96x96 and DIN-rail digital power and energy panel meters engineered for electrical switchgear, motor control centers (MCC), and energy management systems.
True RMS Measurement: Accurate power, voltage, and current readings even on distorted harmonic waveforms.
Class 0.5s / 0.2s Revenue Accuracy: Compliant with IEC 62053-22 international electrical standards.
Isolated RS485 Modbus RTU: Seamless integration with SCADA, PLC, and building management systems (BMS).
Measurement Data
Panel Meter Technical Specifications
Engineered for industrial distribution boards, solar combiner boxes, and machine control panels.
| Specification | VQN-PM96 (DIN 96x96 Flush Mount) | VQN-PM-DIN (DIN Rail Mount) |
|---|---|---|
| Accuracy Class | Class 0.5s Active Energy (IEC 62053-22) | Class 1.0 / Class 0.5s |
| Measured Electrical Parameters | True RMS Voltage (V L-L, V L-N), Current (I1, I2, I3, In), Active Power (kW), Reactive Power (kVAR), Apparent Power (kVA), Power Factor (PF), Frequency (Hz), Active Energy (kWh), Reactive Energy (kVARh), Total Harmonic Distortion (THD-V, THD-I) up to 31st harmonic | |
| Voltage Input Range | Direct: 50V to 500V AC (Phase-to-Phase), PT secondary scalable up to 999 kV | Direct: 80V to 450V AC (Phase-to-Phase) |
| Current Input | 1A or 5A CT Secondary (Programmable primary up to 9999A) | Direct 63A or 5A External CT |
| Communication Protocol | Optically isolated RS485 Modbus RTU (2400 to 38400 bps) | Isolated RS485 Modbus RTU |
| Display Type | High-contrast backlit LCD with 4-row simultaneous parameter readout | Compact Backlit LCD Display |
| Auxiliary Power Supply | 85V - 275V AC/DC Universal Supply | Self-powered from line or 100V-240V AC |
| Dielectric Isolation | 2.5 kV AC for 1 minute (Input / Power Supply / RS485) | |