SONEL Multi-Function Meters MPI-505

Measurement of short-circuit loop parameters:

in L-PE, L-N, L-L circuits as well as in L-PE (RCD) circuits - without tripping RCD breakers of current 30 mA.
impedance measurement of short-circuit loops in power networks of nominal voltages: 115/200 V, 220/380 V, 230/400 V, 240/415 V and frequencies in the range of 4565 Hz..

Testing of AC and A types residual current circuit breakers:

testing of regular and selective residual current circuit breakers of nominal differential currents: 10 mA, 30 mA, 100 mA, 300 mA, 500 mA, 1000 mA,
IA trip current measurement,
tA trip time measurement for 0.5In, In, 2In, 5In,
measurement of earth continuity and touch voltage without tripping RCDs,
functionality of automatic measurement of residual current circuit breaker parameters.

Measurement of insulation resistance at voltages: 100 V, 250 V, 500 V and 1000 V.

Low-voltage measurement of resistance, protective connections and equipotential bonding:

measurement of continuity of protective connections with current ?200 mA,
automatic calibration of test leads - capability of using any test leads,
measurement of resistance with low current and acoustic signaling.

Quick verification of correctness of the PE wire connection with a touch probe.

Measurement of AC voltage.

Indication of phase sequence.

Memory of 990 measurements, data transfer to a PC over the USB interface.