Product Overview

The PQMII-T20-C-A is a power quality monitoring device used to measure and analyze electrical parameters in single-phase or three-phase power systems. It is designed for industrial facilities that require continuous visibility of voltage, current, demand, power, and energy values, with optional diagnostic functions for identifying power quality events that can impact sensitive loads.

This unit supports integration into plant monitoring and control systems through serial communications and relay-based alarming. With programmable setpoints and onboard control outputs, the PQMII-T20-C-A can be applied for supervisory functions such as alarm annunciation, load control, and equipment protection interlocks based on measured electrical conditions.

Key Technical Characteristics

• Brand: General Electric (Multilin)

• Device Category: Power Quality Monitor / Power Quality Meter

• Model / Order Number: PQMII-T20-C-A

• Measurement System Support: Single-phase and three-phase monitoring

• Measured Quantities (typical): Voltage, current, power, demand, energy, and power factor

• Harmonic Capability: Harmonic analysis option for distortion measurement and assessment (configuration-dependent)

• Event Diagnostics: Waveform/event capture capability for troubleshooting power quality disturbances (feature-dependent)

• Control and I/O Functions:

• Programmable setpoints for alarm and control logic

• Relay Outputs: 4 assignable relays for alarm, control, or interlocking functions

• Digital Inputs: 4 switch inputs for status monitoring or control schemes

• Analog Outputs: Up to 4 analog outputs, commonly 4–20 mA for PLC/DCS interfacing (configuration-dependent)

• Communications and Integration:

• Dual RS485 ports with Modbus protocol support for SCADA/PLC connectivity

• Front-access RS232 port for local configuration and data access

• Supply and Logistics:

• Condition: Brand New

• Availability: In Stock

• Lifecycle Status: Active

• Product Origin: USA

• Minimum Order Quantity: 1

• HS Code: 8537101190

• Weight: 3.4 kg

• Dimensions: 35 × 15 × 15 cm

• System Type: DCS / Power Monitoring Integration

Industrial Applications

• Power quality monitoring for plants with VFDs, UPS systems, and sensitive automation loads

• Feeder and MCC incomer monitoring for voltage events, demand trends, and energy accounting

• SCADA integration using Modbus over RS485 for centralized electrical monitoring

• Alarm and control schemes using relay outputs for load shedding or abnormal-condition annunciation

• Commissioning and troubleshooting where waveform capture and harmonic metrics support root-cause analysis