MT320 Portable test meter 

Key Features

  • Excellent user guidance.
  • Many configuration possibilities by adding various measuring adapters.
  • Unique long term and temperature stability of the measuring module.
  • Current measurement up to 120 A with error compensated Clip on CTs.
  • 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.
  • No additional error for reactive measurement.
  • Accuracy class 0.05.
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
  • Energy dosage.
Data Management
  • Storage of measurement data in internal memory.
  • Transfer of stored data to PC.
  • Professional report generation via MTVis software.
  • Optional external thermal printer for on-site result printout.
Actual Values Measurement

 All instantaneous values are displayed simultaneously in a summary:

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

On-site measurement with network load

Official Product Data Provided by our Partner:

zera logo

ZERA Meter Testing Systems

ZERA develops, manufactures, and distributes devices and systems for the generation, measurement, testing, and calibration of electrical quantities. Our focus is on meter and instrument transformer testing technology, as well as precision laboratory technology.

Product Images

Description

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.

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