Digital Panel Meters
The Radix Digital Panel Meter range is designed for accurate and reliable measurement of essential electrical parameters in industrial and commercial electrical systems. Available as Digital Voltmeters, Digital Ammeters, Digital Frequency Meters and Digital VAF Meters, these panel-mounted instruments provide dependable monitoring for electrical distribution, control and automation applications.
Designed for continuous operation, Radix Digital Panel Meters combine high measurement accuracy, user-friendly operation and rugged industrial construction. Available in 96 × 96 mm, 72 × 72 mm and 48 × 96 mm panel sizes, the range offers flexible solutions for new installations as well as replacement of conventional analogue panel meters.
Why Choose Radix Digital Panel Meters?
Key Features
*Available on selected models.
Available Product Series
REX302 Series
Reliable Digital Voltmeters, Digital Ammeters and Digital Frequency Meters for standard electrical measurement applications.
REX305 Series
Large-display Digital Panel Meters designed for improved readability in industrial environments.
REX312 Series
Compact Digital Panel Meters for applications where panel space is limited.
REX315 Series
Economical Digital VAF Meters for routine electrical monitoring.
REX325 Series
High-visibility Digital VAF Meters designed for long-distance readability and industrial automation.
REX334 Series
Versatile Digital Panel Meters for Single Phase and Three Phase electrical systems.
REX335 Series
Advanced Digital VAF Meters with simultaneous multi-parameter indication for demanding industrial applications.
Measurement Options
The Radix Digital Panel Meter range is available for measuring:
Available Enclosure Sizes
Choose the enclosure size best suited to your panel design.
96 × 96 mm
72 × 72 mm
48 × 96 mm
Communication Options
Selected models are available with RS485 Modbus RTU Communication, enabling integration with:
Communication availability depends on the selected model.
Typical Applications
Radix Digital Panel Meters are suitable for:
How to Choose the Right Digital Panel Meter
Choose a Digital Voltmeter when voltage monitoring is required.
Choose a Digital Ammeter for current monitoring and motor load indication.
Choose a Digital Frequency Meter to monitor supply frequency in Mains and generator applications.
Choose a Digital VAF Meter when simultaneous voltage, current and frequency indication is required.
Choose a communication model when integration with SCADA or PLC systems is required.
Why Choose a Radix Digital Panel Meter?
Compared with conventional analogue meters, Radix Digital Panel Meters provide:
*Available on selected models.
Certifications & Compliance
Measurement
EMC
Tested as per:
Safety & Construction
Environmental
A Digital Panel Meter measures and displays electrical parameters such as voltage, current, frequency or VAF in electrical panels and industrial control systems.
A Digital Panel Meter measures one or a limited number of electrical parameters.
A Multifunction Meter measures multiple electrical and energy parameters in a single instrument, including power, energy, demand and communication functions.
A Digital VAF Meter simultaneously measures Voltage, Current and Frequency, making it suitable for generator panels, electrical distribution panels and industrial control panels.
Selected models support RS485 Modbus RTU communication for integration with SCADA, PLC and Building Management Systems.
The CT (Current Transformer) Ratio is used when measuring current through an external Current Transformer. It enables the meter to display the actual primary current flowing in the circuit.
Formula:
CT Ratio = CT Primary Current ÷ CT Secondary Current
Example:
CT Ratio = 400 ÷ 5 = 80
After programming the meter with a CT Ratio of 80, a secondary current of 5 A will be displayed as 400 A.
The PT (Potential Transformer) Ratio, also known as the VT (Voltage Transformer) Ratio, is used when measuring high voltages through an external Potential/Voltage Transformer. It enables the meter to display the actual primary voltage.
Formula:
PT (VT) Ratio = PT Primary Voltage ÷ PT Secondary Voltage
Example:
PT Ratio = 2300 ÷ 230 = 10
After programming the meter with a PT Ratio of 10, a secondary voltage of 230 V will be displayed as 2.3kV (2300 V).

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