Multifunction meter MPI-530-IT of the latest generation, allowing to perform all measurements in the electrical installation in accordance with the PN-EN 61557 standard:

short-circuit loop impedance with resolution up to 0.001 Ω – accurate measurement also in circuits with RCDs,
parameters of RCDs, also in isolated IT networks,
insulation resistance,
earthing resistance ,
continuity of protective and equipotential bonding.

The device has an innovative memory that allows saving tens of thousands of results in the structure of a ready protocol.

Data from memory can be transmitted to a PC via a USB cable or wirelessly via Bluetooth®.

Fault loop impedance measurements:

measurement of short-circuit loop impedance with a resolution of 0.001 Ω with a current of 23 A (44 A at phase-to-phase voltage) - short-circuit resistor Rzw = 10 Ω,
measuring voltage range: 95...440 V, frequency 45...65 Hz,
measurement of short-circuit loop impedance with a resolution of up to 0.01 Ω, in installations protected by RCDs with IΔn ≥ 30 mA without tripping,
automatic calculation of short-circuit current; distinguishing phase-to-phase voltage and phase-to-phase voltage,
measurements using UNI-Schuko plug with a button that triggers the measurement (also with L and N wires swapped) or 1.2 m, 5 m, 10 m, 20 m long wires with possible use of 3-phase socket adapters. (AGT),
selection of installation protections and automatic assessment of the measurement result.

Testing of AC, A, F and B RCDs:

measurement of ordinary, short-time delay and selective circuit breakers with rated residual currents of 10, 30, 100, 300, 500 and 1000 mA,
function of automatic measurement of a full set of circuit breaker parameters (after pressing the "START" button once, the meter performs the entire programmed cycle of measurements, including the possibility of measuring the impedance of the L-PE short-circuit loop with a current of 15 mA),
user-selectable shape of the forced leakage current waveform: sinusoidal (starting from the rising edge or (positive or negative), unidirectional pulsating (positive or negative), unidirectional pulsating with DC bias (positive and negative), constant (positive and negative),
measurement of IA trigger current with increasing current,
measurement of tripping time tA at currents ½IΔn, 1IΔn, 2IΔn and 5IΔn ,
measurement of touch voltage UB and protective conductor resistance RE without tripping the circuit breaker,
detection of L and N wires inversion in the socket ; does not affect the performance of measurements,
possibility to measure tripping current IA and real tripping time tAI with one RCD trip,
measurements for voltage 95...270 V.

Insulation resistance measurements:

measurement voltages: 50 V, 100 V, 250 V, 500 V and 1000 V,
automatic discharge of the capacitance of the measured object after the measurement is completed,
acoustic determination of five-second time intervals to facilitate the capture of time characteristics during insulation resistance measurement.

Low-voltage measurement of protective and equipotential bonding resistance:

measurement of protective conductor continuity with current ≥200 mA in two directions,
low current measurement with acoustic signaling,
auto-calibration of test leads - possibility to use test leads of any length.

Earth resistance measurements:

technical method measurement
Measurement of soil resistivity using the Wenner method.

Measurement of illuminance.

Quick check of correctness of PE protective conductor connection with using a touch electrode.

Measurement and recording of voltage, frequency, alternating current, cosφ and power (active, reactive, apparent), voltage and current harmonics up to 40, THD coefficients.< /strong>

Checking the motor phase sequence and rotation.

Memory with a tree structure, dynamically managed (max. 10,000 results for each type of measurement) with the possibility of describing measurement points, objects, customer names.

Battery or battery powered (option), built-in quick charger. Possibility of charging from the mains and from the cigarette lighter (12 V).

Electrical safety:

type of insulation: double, in accordance with to PN-EN 61010-1 and IEC 61557

measurement category: IV 300 V (III 600 V)

degree of protection: IP54