MLD605 & MLC645 Multifunction Meters

High Accuracy Digital Multifunction Meters for Power Monitoring & Energy Measurement

The Radix MLD605 and MLC645 Multifunction Meters are intelligent Digital Multifunction Meters designed for Power Monitoring, Energy Monitoring and comprehensive electrical measurement in industrial and commercial electrical systems.

Available with a bright multicolour LED display (MLD605) or a graphical LCD display (MLC645), both models combine advanced electrical measurement, energy monitoring and communication in a compact 96 × 96 mm panel-mounted instrument.

Both meters provide True RMS measurement, Class 1 accuracy, field-programmable system configuration and RS485 Modbus RTU communication, making them ideal for Industrial Automation, Electrical Distribution Panels, OEM Panels and Commercial Buildings.

Why Choose Radix MLD605 & MLC645?

The MLD605 and MLC645 series combine high measurement accuracy, advanced monitoring functions and reliable communication in a single multifunction meter.

Key Features

1. True RMS Measurement
2. Class 1 Accuracy
3. Measures 50+ Electrical Parameters
4. Bright LED Display or Graphical LCD Display
5. Graphical Load Current Indication
6. Import & Export Energy Measurement
7. Dual Source Energy Monitoring
8. Independent Mains & DG Energy recording
9. RPM Measurement
10. Load Hours & ON Hours
11. User-programmable Display Scrolling
12. Password Protected Setup
13. 1-second Measurement Update
14. Wide-range AC/DC Auxiliary Supply
15. RS485 Modbus RTU Communication
16. Touch-safe Barrier Terminals
17. Terminal Cover with Sealing Provision
18. Compact 96 × 96 mm, Panel Mount
19. Designed for continuous industrial operation

Available Models

MLD605 – LED Display

Ideal where operators require:

1. Bright multicolour LED display
2. Long-distance visibility
3. Fast parameter viewing
4. Excellent readability in industrial environments

MLC645 – Graphical LCD Display

Ideal where operators require:

1. Graphical LCD display
2. Four-line, 5-digit display for higher resolution
3. Dedicated 8-digit Energy display
4. Three independent Current Bar Graphs for R, Y & B phases
5. Simultaneous display of multiple electrical parameters

Electrical Parameters Measured

The MLD605 and MLC645 Multifunction Meters measure a comprehensive range of electrical and energy parameters.

Voltage: Phase Voltage, Line Voltage, Average Voltage, Total Voltage

Current: Phase Current, Neutral Current, Average Current, Total Current

Power: Active Power (kW), Reactive Power (kVAr), Apparent Power (kVA), Total Power,

Energy: Active Energy (kWh), Reactive Energy (kVArh), Apparent Energy (kVAh), Import Energy, Export Energy, Import Reactive Energy and Export Reactive Energy

Power Quality: Frequency, Power Factor, Phase Angle

Other Parameters: RPM, Load Hours, ON Hours

Supported Electrical Systems

Both models support multiple electrical systems through field-programmable configuration.

Supported systems include:

1. Single Phase
2. Three Phase Three Wire
3. Three Phase Four Wire
4. Star Connection
5. Delta Connection

One multifunction meter can therefore be used across multiple panel designs and electrical installations.

Typical Applications

The MLD605 and MLC645 are suitable for:

1. Electrical Distribution Panels
2. PCC Panels
3. MCC Panels
4. APFC Panels
5. DG Control Panels
6. Generator Synchronising Panels
7. Industrial Automation
8. OEM Control Panels
9. Building Management Systems (BMS)
10. Energy Management Systems (EMS)
11. Manufacturing Plants
12. Commercial Buildings
13. Infrastructure Projects
14. HVAC Panels
15. Water Treatment Plants

MLD605 & MLC645 vs Conventional Digital Panel Meters

Compared with conventional digital panel meters, the MLD605 and MLC645 provide:

1. Simultaneous measurement of electrical parameters
2. Complete Power Monitoring
3. Comprehensive Energy Monitoring
4. Import & Export Energy Measurement
5. Dual Source Energy Monitoring

Certifications & Compliance

The MLD605 and MLC645 Multifunction Meters are designed for reliable operation in industrial environments and comply with recognised international standards.

Measurement Standards

1. Tested as per IEC 62052-11 requirements
2. Active energy Class 1.0 (IEC 62053-21)
3. Reactive energy Class 2 (IEC 62053-23)

EMC Standards

Tested as per:

1. IEC 61000-4-2 (ESD Immunity)
2. IEC 61000-4-3 (Radiated RF Immunity)
3. IEC 61000-4-4 (Electrical Fast Transient)
4. IEC 61000-4-5 (Surge Immunity)
5. IEC 61000-4-6 (Conducted RF Immunity)
6. IEC 61000-4-8 (Magnetic Field Immunity)
7. IEC 61000-4-11 (Voltage Dips & Interruptions)
8. CISPR 11 Class A

Safety & Construction

1. Touch-safe Barrier Terminals
2. Terminal Cover with Sealing Provision
3. Ring-type Cable Lug Compatible Terminals
4. Polycarbonate Industrial Enclosure
5. RS485 Isolation – 1500 VAC RMS for 1 Minute
6. Panel Mount Design

Environmental Protection

1. Front Protection: IP54 (with gasket)
2. Front Protection: IP40 (without gasket)
3. Rear Protection: IP20
4. Operating Temperature: –10°C to +55°C
5. Storage Temperature: –20°C to +75°C
6. Humidity: Up to 85% RH (Non-condensing)