Thiết bị kiểm tra lắp đặt điện đa chức năng Sonel MPI-535

Thiết bị kiểm tra lắp đặt điện đa chức năng Sonel MPI-535

Thiết bị kiểm tra lắp đặt điện đa chức năng Sonel MPI-535

Fault loop impedance measurements:

• impedance measurement with 23 A current (40 A for phase-to-phase voltage), max. resolution 0.001 Ω,
• fault current-limiting resistor: 10 Ω,
• range of measurement voltages: 95…440 V, frequencies 45…65 Hz,
• fast (up to 5 s) fault loop impedance measurement with resolution up to 0.01 Ω in systems protected with RCDs not tripping at I_Δn ≥ 30 mA,
• automatic calculation of fault current on the basis of nominal or measured voltage; differentiation of phase-to-neutral and phase-to-phase voltage,
• measurements using UNI-Schuko plug with measurement triggering button (including for swapped L and N leads) or 1.2 m, 5 m, 10 m, 20 m test leads, with optional use of three-phase socket adapters (AGT),
• selection of installation protections and automatic evaluation of measurement results.

Testing of AC, A, F, B and B+ residual current devices:

• measurement of general, short-time delay and selective RCDs with rated residual currents of 10, 30, 100, 300, 500 and 1000 mA,
• function of automatic measurement of all RCD parameters (after pressing the “START” button once, the meter performs the entire defined cycle of measurements, including the capability of earth fault loop impedance measurement with 15 mA current),
• shape of the input leakage current selected by the user: sinusoidal (start from rising or falling edge), unidirectional pulsating (positive or negative), unidirectional pulsating with direct current offset (positive or negative), constant (positive or negative),
• measurement of tripping current I_A with rising current,
• measurement of tripping time t_A with currents 0.5 I_Δn, 1 I_Δn, 2 I_Δn and 5 I_Δn,
• measurement of touch voltage UB and protective conductor resistance R_E without tripping the RCD,
• detection of L and N phase swapping in a socket; does not affect measurements,
• capability of measuring tripping current I_A as well as actual tripping time t_AI with just one RCD trip,
• voltage measurements within the range of 95…270 V.

Measurement of insulation resistance:

• measurement voltages: 50 V, 100 V, 250 V, 500 V, 1000 V,
• measurement of insulation resistance up to 3 GΩ,
• capability measurement in-socket by means of UNI-Schuko adapter,
• sound signalling of five-second time intervals, facilitating capture of time characteristics,
• meter protected against the presence of voltage on the object and the appearance of voltage during measurement,
• automatic discharge of the measured object's capacitance after completion of measurement,
• automatic measurement of all resistance combinations of 3-, 4- and 5-core cords by means of the optional AutoISO-1000C adapter.

Earth resistance measurements:

• according to 3- or 4-lead technical method with 2 auxiliary electrodes,
• according to double-clamp method,
• internal power source with frequency appropriate for 50 Hz or 60 Hz power network.

Soil resistivity measurements according to the Wenner method:

• measuring range: 0.5 Ωm…9.99 kΩm,
• distances between electrodes can be set in meters (1…30 m) or feet (1…90 ft).