Description
Overview
The PQMII‑T20‑C‑A is a compact, high‑precision power quality monitoring module from General Electric’s Multilin product line. Designed for detailed analysis of electrical distribution systems, it captures real‑time voltage, current, power, and energy data across single‑phase and three‑phase networks. Its measurement accuracy and broad diagnostic capabilities make it suitable for facilities that require continuous visibility into electrical performance.
Functional Capabilities
The monitor supports programmable setpoints and includes four configurable relay outputs, enabling automated responses such as load management, alarm signaling, or power factor optimization. Harmonic measurement capabilities allow the PQMII‑T20‑C‑A to detect distortion levels and identify sources of electrical disturbances, supporting preventive maintenance and equipment protection.
Four digital inputs expand the module’s control and monitoring flexibility, allowing integration with external switches, status signals, or interlocking logic.
Communication and Integration
The device offers multiple communication interfaces for seamless integration into supervisory control systems. Dual RS‑485 ports support Modbus protocol for networked monitoring, while a front‑panel RS‑232 port provides direct access for configuration and data retrieval. The unit also includes four analog outputs (4–20 mA), enabling direct connection to PLCs or SCADA systems without additional transducers.
Waveform capture and event recording provide valuable diagnostic data for troubleshooting voltage sags, swells, transients, and harmonic issues. These features make the PQMII‑T20‑C‑A a versatile tool for maintaining electrical system reliability.
Technical Specifications
| Parameter |
Specification |
| Model |
PQMII‑T20‑C‑A |
| Product Type |
Power Quality Monitor |
| Brand |
General Electric |
| Product Range |
Multilin Series |
| Measurement Functions |
Voltage, current, power, energy, harmonics |
| Relay Outputs |
4 programmable |
| Digital Inputs |
4 |
| Analog Outputs |
4 × 4–20 mA |
| Communication Ports |
Dual RS‑485 (Modbus), RS‑232 front port |
| Diagnostic Features |
Waveform capture, harmonic analysis |
| Weight |
0.04 kg |
| Dimensions |
5 × 1.3 × 4.4 cm |
| HS Code |
8537101190 |
| Minimum Order |
1 unit |
| Origin |
USA |
| Availability |
In stock |
| Lifecycle Status |
Active |
Application Scenarios
-
Power quality monitoring in industrial plants
-
Energy management and load optimization
-
Harmonic analysis for sensitive electronic equipment
-
Integration with SCADA, PLC, and DCS systems
-
Troubleshooting voltage disturbances and waveform anomalies
FAQ
Q: Does the PQMII‑T20‑C‑A support harmonic analysis? A: Yes. It provides detailed harmonic measurement for diagnosing distortion issues.
Q: Can the device interface directly with PLCs? A: The four 4–20 mA analog outputs allow direct PLC integration without external converters.
Q: What communication protocols are supported? A: Modbus via dual RS‑485 ports, plus an RS‑232 port for local configuration.
