Sonel MZC-340-PV Fault Loop Impedance Meter

The Sonel MZC-340-PV operates voltages up to 900 V AC with a measurement category CAT IV 1000 V and an efficient ventilation system for smooth and effective operation without downtime. The ventilation system significantly reduces the amount of time required to cool the short-circuit resistor.

The instrument is only controlled by a remote as the energy released at a mains voltage of 800-900 V AC can pose a danger to the personnel performing measurements. That’s why the MZC-340-PV is only wirelessly controlled.

Key Features

1. Measurement of very low short circuit loop impedances (with resolution 0.1 mΩ) with a current of 130 A at 230 V; maximum 305 A at 550 V AC and 250 A at 900 V AC.
2. Measurements in installations with rated voltages: 220/380 V, 230/400 V, 240/415 V, 290/500 V, 400/690 V, 460/800 V (from 200 V up to 900 V), and frequencies 45...65 Hz.
3. Ability to perform measurements in short circuit system: phase-phase, phase-PE, phase-N.
4. Differentiation between the phase voltage and the inter-phase voltage while calculating the short circuit current.
5. 4p (four-pole) method, test leads do not require calibration (measurement with current up to 305 A).
6. Measurement of resistance (RS) and reactance (XS) components
7. Remote control.
8. Touch voltage and touch shock voltage measurement with resistor 1 kΩ).
9. AC voltage measurement in range 0...900 V.
10. Frequency measurement 45.0...65.0 Hz.
11. Memory of 990 measurement results, data transmission via USB and Wi-Fi.
12. Power supply: rechargeable battery.

What's Included?

• Fault Loop Impedance Meter
• Double-wire test lead 3 m (10 / 25 A) CAT IV 1000 V
• 2x Kelvin clamp, 1 kV, 25 A, CAT IV 1000 V
• 2x high-current pin probe 1 kV CAT IV 1000 V (banana sockets)
• Mains cable 230 V with IEC C7 plug
• Power supply Z-19
• USB cable
• M-6 carrying case
• Factory calibration certificate