The GE PQMII-A, also cataloged as the PQMII-A Power Quality Meter Panel, operates as a dedicated hardware component for continuous electrical power monitoring within industrial AC distribution networks.
Hardware Specifications
Parameter
Specification
Model
PQMII-A
Brand
GE
Origin
USA
Weight
2.27 kg (5.00 lbs)
Dimensions
Standard Panel Mount Form Factor
Operating Temp
-20 to +70 deg C
Power Consumption
20 VA
Control Power Voltage
90 to 300 VDC / 70 to 265 VAC (50/60 Hz)
Front Interface
RS232 Serial Port
Rear Interfaces
2x RS485 Serial Communications Ports
Display & Keypad
Front Keypad with Illuminated 40-Character Display
Backplane Bus Communication & Serial Network Velocity
The PQMII-A integrates dual rear RS485 serial communication interfaces alongside a front-accessible RS232 programming port to transmit multi-parameter electrical telemetry to host SCADA and DCS backplanes. High-velocity DSP sampling executes continuous power quality measurements while maintaining firmware compatibility across Modbus RTU network topographies. Dual RS485 ports support daisy-chained bus topologies without introducing data transfer latencies or impacting local keypad display response times.
Frequently Asked Questions
Q: What are the control power supply voltage requirements for operating the PQMII-A?
A: The internal power supply accepts a wide input voltage range of 90 to 300 VDC or 70 to 265 VAC at 50/60 Hz, with a maximum power consumption of 20 VA.
Q: How many serial communication ports are available on the PQMII-A hardware interface?
A: The meter features three serial ports: one front-panel RS232 port for maintenance/configuration, and two independent RS485 ports on the rear for networked monitoring.
Field Installation Guidelines
Prepare the panel cutout and slide the PQMII-A frame through the front opening until the bezel rests flush against the door.
Secure the meter in place using the supplied mounting brackets and torque the retaining screws evenly to prevent panel distortion.
Terminate control power lines through an external 2 A circuit breaker or fused disconnect switch.
Ensure RS485 communication lines are wired using twisted-shielded pair cable and apply 120-ohm termination resistors at the end nodes of the daisy chain.
Connect the rear chassis ground stud directly to the local panel earth bar using 14 AWG copper wire to ensure EMI shielding performance.
