Description
Technical Specifications
| Feature | Specification |
| Model Number | PQM-C-A |
| Product Line | PQM II Series |
| Control Power | 90 – 300 VAC / 110 – 300 VDC (Standard) |
| Current Inputs | 1A / 5A Phase & Ground (Field Programmable) |
| Accuracy | 0.2% for Voltage/Current; 0.4% for Power/Energy |
| Sampling Rate | 64 Samples per cycle (Continuous) |
| Communication | RS485 Modbus RTU / DNP 3.0 |
| Analog Inputs/Outputs | 4 Programmable 4-20mA Inputs; 4 Outputs |
| Control Relays | 3 Form-C Relays; 1 Form-A Relay |
| Harmonic Analysis | Total Harmonic Distortion (THD) & Individual Harmonics |
| Display | 40-character Vacuum Fluorescent Display (VFD) |
| Environmental | -20°C to +70°C Operating Temperature |
The PQM-C-A is a specialized configuration of the PQM II Power Quality Meter, designed for high-precision monitoring of three-phase electrical systems. The “C” designation indicates a specific combination of control power and I/O options, while the “A” denotes the inclusion of high-performance analog capabilities for interfacing with external SCADA systems. This meter provides comprehensive analysis of power quality issues, including voltage sags/swells and harmonic distortion, while serving as a reliable data logger for energy management and predictive maintenance in industrial power distribution networks.
Product Comparison: PQM-C-A vs. Basic PQM Models
The PQM-C-A offers a more robust functional set compared to the entry-level PQM configurations (such as the base PQM-B):
- Analog Integration: Unlike basic versions that may lack telemetry outputs, the “A” option on the PQM-C-A provides four 4-20mA analog outputs, essential for transmitting real-time parameters like kW or PF to PLC-based control systems.
- Voltage Range: The “C” power supply module is built for universal compatibility, handling a wide range of AC and DC control voltages, making it more versatile than models restricted to low-voltage DC inputs.
- Fault Recording: This specific variant includes expanded memory for event recording and waveform capture, allowing for detailed forensic analysis of power disturbances that simpler digital ammeters cannot provide.
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One year warranty, special discount after sale
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The company's advantages: the supply of imported original products, professional production of accessories
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[service contact information]
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E-mail: dcsplcsales@gmail.com
Contact Person: Simon
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