The MT320s2 is a lightweight and compact test meter for on-site verification and calibration of single- and three-phase meters.
The test meter can measure test voltage and test current directly from the mains or generate and measure them via an external source (optional, e.g., MT400 or MT5xx).
The MT320s2 test meter is designed for testing a single device under test.
- phases 3
- Accuracy class 0.05
- Current measurement max. 12 A (direct measurement), 1000 A (via special current clamps)
- Voltage measurement max 300 V CAT IV
- Actual value, vector, curve display Error measurement
- Measurement of harmonics up to the 40th
- I-converter test
- Burden measurement for CT / VT
- Selective performance measurement
- Replaceable battery pack
- Additional measuring inputs for U (PE-PN) and IN
- Hardware is modularly expandable Insensitive to mains interference (up to 150 kHz)
- Supply via mains plug or battery pack Excellent user-guidance.
- 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.
- RMS values of all voltage and current phases.
- All phase angles between voltage and current.
- Phase angles between the voltages.
- Currents for all 3 phases.
- Active, reactive and apparent power.
- Frequency and phase rotation.
- Power factor (cos ϕ).
- 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.
- 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.
- On-site measurement with network load, Power supply via external power supply or rechargeable batteries
