Technical Specifications Retains all base parameters of PQMII‑T20‑C. 4‑channel galvanically isolated 4‑20 mA analog outputs. Maximum analog output burden resistance:600 Ω. Analog‑output mapping is user‑configurable for voltage, current, power, power‑factor or harmonic values. Communication: Modbus RTU, DNP3.0 Control power supply:90‑300 VAC /70‑250 VDC Operating Temperature:‑20 °C to +60 °C Storage Temperature:‑40 °C to +85 °C Relative Humidity:5%‑95%, non‑condensing Mechanical Dimension:144 mm ×144 mm panel‑mount housing
Functional Features Full power‑quality measurement, harmonic analysis and disturbance recording capability. Programmable control relay interlock and load‑switching functions. 4‑channel isolated analog transducer outputs for industrial analog system interface. Local LCD‑keypad on‑site parameter operation. Complete event and disturbance waveform data logging. EnerVista software configuration support. User‑configurable analog‑output scaling and variable mapping.
Application Scenarios Industrial automation power‑monitoring systems connected to DCS host. Large‑scale factory integrated power distribution monitoring sites. Process‑plant energy consumption monitoring application points. Utility substation auxiliary metering and control positions. Power‑plant auxiliary workshop power quality monitoring systems.
Performance Parameters Voltage‑current measurement accuracy: ±0.2%. Analog‑output accuracy: ±0.5% full scale. Relay contact resistive rating: 250 VAC / 5 A. Weight:1.36 kg. Shock and vibration resistance: Complies with industrial panel‑mount equipment vibration standards.
Structural Characteristics 144 × 144 mm standard panel‑mount enclosure. Extra rear‑side dedicated terminal block for analog‑output signal wiring. Front‑panel back‑lit LCD display and keypad HMI consistent with series models. Built‑in analog‑isolation transformers inside housing assembly. Metal mounting brackets for cabinet panel fastening.
Working Principle Voltage‑current waveform sampling and power‑quality calculation process is identical to base series model. User‑selected measurement variables are sent to internal D/A conversion circuit, converted into galvanically isolated 4‑20 mA current signals.
Installation Requirements Standard cabinet panel cut‑out dimension:138 × 138 mm. Analog‑output signal cables must use shielded twisted‑pair cable. Analog‑signal ground loop shall not share connection with high‑power power‑circuit ground. Install inside dust‑proof and moisture‑proof control cabinet.
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