MT320 Portable test meter 

The MT320 is a light weight and compact Reference Meter for on-site verification and calibration of single- or three-phase meters.
Test voltage and test current can be measured by the Reference Meter directly from the mains or generated and measured via an external source.
The MT320 is designed for testing one test specimen.

moving test mt 320 front
zera moving test mt 320 side
zera moving test mt 320 with accesories
mt320 three phase reference

Key Features

  • phases 3
  • Accuracy class 0.05
  • Current measurement max. 12 A (direct measurement), 30.000 A (via special current clamps)
  • Voltage measurement max 300 V
  • Display 5,9", Monochrome
  • Actual value, vector, curve display
  • Error measurement
  • Measurement of harmonics up to the 40th Also available as CAT IV device
  • Automatic test sequence and energy dosing (optional – only in conjunction with a ZERA source)
  • Burden measurement for CT / VT
  • I-converter test (optional)
  • Selective power measurement (optional)
  • Many configuration possibilities by adding various measuring adapters.
  • Unique long term and temperature stability of the measuring module.
  • Internal memory to store measurement results and customer data.
  • Windows based data management software MTVis for evaluation of the test results. External system control via PC with windows based control software. current measurement up to 10000 A by using a required current sensor.

Actual Values Measurement

  • RMS voltage and current values
  • Phase angles  
  • Active, reactive and apparent power.  
  • Frequency and phase rotation.  
  • Power factor (cos φ).

Functions

  • Testing of electricity meter installations with 2-wire, 3-wire and 4-wire circuits
  • Testing of energy and power registers
  • Power and energy measurement of active, reactive and apparent energy
  • 4 quadrant measurement.
  • Frequency-, phase angle- and power factor measurement.
  • Harmonic waveform analysis for voltage and current up to the 40th THD.
  • Distortion factor measurement.
  • Vector diagram display.
  • Waveform sampling. Rotary field display.
  • Determination of the operating burden on instrument transformers for CT and PT.
  • Operation without mains power supply possible.
  • Ratio test by simultaneous measurement of both primary and secondary currents in CT connected metering systems.
  • Selective power measurement.
  • External thermal-printer for presentation of the measuring results at customer site.

Configuration

  • Direct measurement up to 300 V / 12 A
  • Clamp measurement current up to 120 A
  • Measurement error power/energy: < ±0,05%
  • Burden measurement for transformer installations.

Applications (Use Cases)

  • On-site measurement with network load

ZERA PORTABLE METER TEST SYSTEM

VERSATILE REFERENCE ACCURACY
Broad range of reference meter accuracy classes spanning 0.005%, 0.01%, 0.02%, 0.05%, 0.1%, and 0.2%.

BASIC PARAMETER ACCURACY

Voltage & current accuracy is better than power/energy accuracy. This will benefit in sustaining equipment accuracy.

REALISTIC FIELD SIMULATION

Built-in harmonic generation accurately replicates real-world electrical conditions.

SIMULTANEOUS DIAL TESTING

Evaluates Active, Reactive, and Apparent energies concurrently (supported by models MT310 and MT320).
IN-FIELD DIAGNOSTICS & SMART METER TESTING
Includes an installation checker & smart meter testing functions designed specifically for fieldwork.
SMART METER CONNECTIVITY
Seamlessly interfaces with smart meters using the CA400 communication adapter.
INTERCHANGEABLE CTS
Flexible clamp-on Current Transformers available in 120A, 300A, 1200A, and 3000A variants.
SINGLE POSITION FULLY AUTOMATIC TEST SYSTEM
Single position fully automated testing for the rigorous calibration and R&D analysis of individual electricity meters. (supported by models MT786 & MT781).
DC CAPABILITIES
Fully equipped for accurate Direct Current (DC) measurements (supported by models MT310S2 and MT320S2).

Infinity Egypt Precision Framework

Supply

We provide high-precision smart meters, and advanced testing equipment for utilities and factories.

Integration

Bridging the gap between hardware and software by designing panels, integrating data into Energy Management Systems (EMS) or SCADA, and ensuring devices communicate via standard protocols (DLMS, Modbus, etc.).

Testing

To ensure accuracy and safety, Our engineers perform production line testing, power quality analysis (to detect “dirty power”), and rigorous lab and field tests against international standards.

Verification

We focus on compliance and revenue protection by verifying installations before commissioning, auditing for tampering, and validating data accuracy for billing.

Support

We offer long-term technical partnership through hands-on training for engineers, accredited calibration services, and local troubleshooting to minimize downtime.

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infinity egypt zera test bench

Precision for Every Point of Power

Get a Solution Tailored to Your industry.

Contact us now

Driving Innovation with Our Success Partners

south cairo electricity distribution company (scedc)
north cairo electricity distribution company (ncedc)
north delta electricity distribution company (ndedc)
upper egypt electricity distribution company (ueedc)
taqa egypt (2)global energy logo
abb logo
el sewedy industriesscu logosiemens energy logocropped tepco logo hori 5003151ad11 9a3c98113.t big bb87e665
elsewedy engineering industries sei
egemac
devash control systems
memico group
2m electric group logo
madinaty electromechanical power company

THE INFINITY ADVANTAGE

Why Industry Leaders Choose Us

Proven Industry Heritage

We don’t just supply equipment; we understand the history and future of Egypt’s energy sector. With over two decades of operation, we navigate complex regulatory and technical landscapes to ensure your project’s success.

Unmatched Engineering Talent

Our engineers are the reason industry leaders choose Infinity Egypt. We go beyond installation to become your trusted advisors, helping you map out complex requirements, execute flawless implementations, and empower your workforce through specialized training programs.

ROI & Efficiency

Our solutions are an investment in accuracy. By deploying 0.02% precision testing and utility-grade smart meters, we help you drastically reduce technical and commercial losses, ensuring a faster return on investment.

Future-Ready Technology

Stay ahead of the curve. We equip you with next-generation capabilities, including E-Mobility infrastructure testing, smart grid communication protocols, and advanced power quality analysis.

Dedicated Maintenance & Repair

Forget the delays of relying solely on foreign support. Infinity Egypt provides immediate, on-ground troubleshooting, maintenance, and calibration services to keep your mission-critical operations running.

Global Standards Compliance

Navigate regulations with confidence using world-class technology from ZERA and EDMI. We ensure every system meets strict international standards (IEC, DLMS/COSEM, ISO), guaranteeing your operations remain safe, certified, and fully auditable.