Product Description

Overview

The GE EPM9650Q delivers revenue-class electrical measurements for facilities that depend on accurate billing and power quality reporting. It measures voltage, current, energy, and harmonic distortion using high-speed sampling that captures disturbances with remarkable detail. Moreover, its robust firmware supports advanced diagnostics that help operators address quality issues before they affect critical loads.

Technical Specifications

Measurement Accuracy
• ANSI C12.20 Class 0.2 accuracy
• IEC 62053-22 Class 0.2S compliance
• Measures V, I, kW, kWh, frequency, and harmonics

Power Quality Functions
• EN50160 flicker compliance
• 512 samples per cycle waveform capture
• High-speed transient detection
• Harmonic analysis up to the 255th order

Data Logging & Storage
• Large memory for events, trends, and waveform captures
• Stores alarms, disturbances, and compliance records

Time Synchronization
• Built-in GPS for accurate event correlation

Communication Interfaces
• Ethernet with Modbus TCP/IP, DNP3, IEC 61850
• RS-485 supporting Modbus RTU
• Optional fiber interface

Display & User Interface
• High-resolution graphic LCD
• Intuitive front panel navigation

Physical Characteristics
• Dimensions: 14.75 × 9.5 × 3.5 cm
• Weight: 0.8 kg
• DIN-rail or panel mounting

Environmental Ratings
• Operating temperature: –20 °C to +70 °C
• Storage temperature: –40 °C to +85 °C
• Humidity: 5–95% non-condensing

FAQ (Plain Text Format)

Q1: What accuracy class does the EPM9650Q support?
A: It meets ANSI C12.20 Class 0.2 and IEC 62053-22 Class 0.2S accuracy requirements for revenue metering.

Q2: Can this meter record high-speed disturbances?
A: Yes, it captures waveforms at 512 samples per cycle and logs fast transients with detailed resolution.

Q3: Which communication protocols are available?
A: The meter supports Modbus TCP/IP, Modbus RTU, DNP3, and IEC 61850, with optional fiber ports.

Q4: Does the meter include built-in time synchronization?
A: A GPS-based clock ensures precise timestamping for event correlation across multiple sites.

Q5: Where is the EPM9650Q commonly installed?
A: It is used in industrial facilities, commercial buildings, and utility substations requiring accurate power quality reporting.