Multifunction Power Meter for Single-Phase / Three-Phase Power Monitoring and Analysis
CMFM-F, CMFM-G
Multifunction power meters of the CMFM Series provide single-phase and three-phase power monitoring, energy management, and power quality analysis for industrial control panels, factories, commercial buildings, and residential complexes. Supporting 1P2W, 1P3W, 3P3W, and 3P4W systems, they measure voltage, current, power, power factor, frequency, bidirectional energy, maximum demand, total harmonic distortion (THD), individual harmonic distortion (IHD), and harmonic analysis up to the 63rd harmonic order. Built-in RS485 Modbus RTU communication enables seamless integration with SCADA and energy management systems.
About the Product
Multifunction Power Meters of the CMFM Series, consisting of the CMFM-F (Standard Model) and CMFM-G (Advanced Model), are high-speed multifunction power meters designed for versatile electrical monitoring and power quality analysis applications. With a sampling rate of up to 128 samples per cycle, they support a wide range of electrical systems, including single-phase 2-wire (1P2W), single-phase 3-wire (1P3W), three-phase 3-wire (3P3W), and three-phase 4-wire (3P4W) configurations, enabling accurate measurement of a comprehensive range of electrical parameters, including harmonics, power factor, and other power quality indicators.
These multifunction power meters are widely used in industrial control panel power monitoring systems, as well as for energy management and power quality analysis in factories, office buildings, and residential complexes.
Equipped with a built-in RS485 communication interface, supporting communication speeds of up to 38,400 bps and the Modbus RTU protocol, the CMFM Series integrates seamlessly with a wide range of data acquisition and monitoring systems, including SCADA (Supervisory Control and Data Acquisition) and energy management systems for remote monitoring applications.
Current input requires an external current transformer (1 A or 5 A secondary). When system voltage exceeds 600 V, an external voltage transformer is also required for voltage measurement, allowing real-time monitoring across a wide range of low- and high-voltage power systems.
Features
- CE, RoHS, and FCC compliant
- High-accuracy bidirectional energy measurement and power quality analysis
- Per-phase display of electrical parameters
- Harmonic analysis up to the 63rd order
- Requires CT current input, configurable for 1 A or 5 A CT secondary ratings
- 1Wide-view high-resolution LCD display with radial bar-graph power indicators for real-time power monitoring and power quality analysis
- Parameters can be configured via the front panel
- Measures and displays a wide range of electrical parameters, including voltage (V), current (A), active power (W), reactive power (var), apparent power (VA), power factor (PF), frequency (Hz), import/export active energy (kWh), import/export reactive energy (kvarh), total harmonic distortion (THD), individual harmonic distortion (IHD), and maximum demand.
- Displays estimated carbon emissions based on a user-configurable emission factor
Additional Features【CMFM-G only】
- 4 digital inputs (DI) and 2 digital outputs (DO); digital outputs capable of alarm-device connection
- Sequence of Events (SOE) logging: stores up to 30 event records, including power outage, power restoration, CT change, VT change, energy reset, demand reset, and alarm trigger ― useful for power quality and incident analysis
- Supports 8-period Time-of-Use (TOU) tariff configuration
Technical Specifications
Standard | IEC 62053-22 |
|---|---|
Auxiliary Power Supply | 85 ~ 275 VAC / 120 ~ 380 VDC |
Voltage Measurement Range | 50 ~ 600 VAC (L-L ) |
Current Input | 1A or 5A (via CT) |
Frequency Measurement Range | 45 ~ 65 Hz |
Short-Time Overcurrent Withstand | 20 × Imax for 0.5 s |
Power Frequency Withstand Voltage | 4 kV / 1 min |
Surge Withstand Voltage | 6kV, 1.2/50 μs |
Maximum Display Value | 9999999.9 (kWh & kvarh ) |
Power Consumption | ≤ 2W |
Operating Temperature | -25℃ ~ +55℃ |
Relative Humidity | 20% ~ 90% (non-condensing) |
Ingress Protection Rating | IP51 (Indoor Use ) |
Altitude | ≤ 2000 m |
- Download Documents
CIC Company Profile
Learn about our company: history, strengths, products, global locations, and our Advanced Electricity Lab.
【Product Brochure】 Multifunction Power Meter for Single-Phase / Three-Phase Power Monitoring and Analysis
This brochure provides a detailed overview of the product, including key features, technical specifications, dimensions, and installation information.
- Related Products
Multi-Circuit Multifunction Energy Meter
CED-4C ML
Multi-circuit energy meter CED-4C ML is a multifunction DIN rail power meter designed for accurate multi-circuit measurement in single-phase and three-phase electrical systems. Supporting up to 4 three-phase circuits or 12 single-phase circuits, it measures voltage, current, active power, reactive power, active energy, reactive energy, power factor, frequency, demand, and total harmonic distortion (THD), with RS485 Modbus RTU communication for remote monitoring and parameter configuration.
DIN Rail Multifunction Energy Meters (Single-Phase & Three-Phase)
CED Series
DIN rail multifunction energy meters in the CED Series provide accurate power monitoring for single-phase and three-phase electrical systems. These multifunction energy meters support voltage, current, active and reactive power, energy, power factor, frequency, and harmonic analysis, with RS485 Modbus RTU communication for remote monitoring. Available in direct connection and CT-connected models, the CED Series offers compact DIN rail mounting for a wide range of energy metering applications.
IC Card Prepaid Electricity Metering System with RS485 (Single-Phase Series)
BAW-1A, BAW-2A, BAW-RL, BAW-RA
Prepaid electricity metering systems of this type operate on a pay-before-use mechanism, eliminating unbilled consumption and simplifying electricity cost recovery. This single-phase IC card meter series supports four tariff modes — including TOU (Time-of-Use) pricing — with dual RS485 interfaces for seamless integration with card readers, value loaders, and back-end management platforms. Suitable for rental apartments, EV charging stations, school facilities, and other applications requiring accurate, automated electricity billing.
- Related News
08Oct 2024 Focus on Smart Energy: CIC Showcases Power Solutions at Successful Exhibition
Challenge Industrial Co., Ltd. (CIC) successfully showcased a range of power solutions at the “Energy Taiwan 2024” held from October 4 to 6 this year. The well-prepared exhibits included not only a variety of current transformers (CTs), voltage transformers (VTs), bushing current transformers (BCTs), and surge protection devices (SPDs) but also featured the most sought-after Smart Electronic Meters and Energy Management Systems (EMS).
Read More23Oct 2023 CIC Shares Highlights from 2023 Energy Taiwan Exhibition
CIC's Electronic Product Team wrapped up a successful exhibition at 2023 Energy Taiwan last week.
Read More13Oct 2023 CIC Returns to 2023 Energy Taiwan to Showcase Smart Energy Solutions
We are thrilled to announce that CIC will be making a comeback at this year's "Energy Taiwan," the largest renewable energy and net-zero sustainability exhibition in Taiwan.
Read More27Jul 2023 CIC Returns to Intelligent Asia's 'Automation Taipei' Exhibit
We are delighted to announce that CIC will once again be participating in Intelligent Asia's prestigious "Automation Taipei" exhibit. This year's event, held from August 23 to 26, promises to be a remarkable gathering with approx. 1200 companies showcasing their innovations across more than 4,000 booths.
Read More03Nov 2021 CIC to showcase EV chargers and Electronic Meters at Taipei World Trade Center
CIC (Challenge Industrial) is showcasing its popular Electronic Energy Meters and Electric Vehicle Chargers at the Taipei World Trade Center (TWTC) during the 2021 Taipei Building Show, from November 4th to November 7th.
Read More06Aug 2020 Kaohsiung Industrial Automation Exhibition 2020
This year CIC participated in the largest professional automation show in South Taiwan: the "Kaohsiung Industrial Automation Exhibition," which featured approx. 450 exhibitors/companies this year. CIC's booth showcased a variety of meter products, testing instruments by Fluke, surge protection devices (SPDs), and transformers.
Read More24Oct 2019 2019 “Energy Taiwan” Exhibition, Taipei City
This year, once again CIC (Challenge Industrial Co., Ltd.) participated at the “Energy Taiwan” Exhibition. In addition to CIC's electronic energy meters, Fluke testing instruments were also in the spotlight. Representatives from CIC's Electronic Products Division welcomed many visitors and guests during this major event.
Read More22Aug 2018 2018 “Energy Taiwan” Exhibition, Taipei City
CIC (Challenge Industrial Co., Ltd.), in collaboration with Yama-Sun Energy Technology Co., Ltd., will be participating in the 2018 Exhibition “Energy Taiwan.” CIC’s Electronic Products Division will showcase the following:
Read More