Model MZC-306 -Loop Impedance Meter

Measurement of short circuit loop impedance (Z_L-PE, Z_L-N, Z_L-L)
Measuring range according to IEC61557: 0,13…1999 Ω for 1,2 m test leads; 0,25…1999 Ω for UNI-SCHUKO adapter

• rated operating voltage Un_L-N/ Un_L-L: 110/190 V, 115/200 V, 127/220 V, 220/380 V, 230/400 V, 240/415 V, 290/500 V, 400/690 V,
• operating voltage range: 100…440 V (for Z_L-PE and Z_L-N) and 100…750 V (for Z_L-L)
• high current measurement (up to 30 A),
• operating frequency range: 45…65 Hz,
• control of correctness of PE terminal connection by means of a contact electrode (applicable to Z_L-PE),
• measurement is also possible when L and N circuits are swapped,
• measurement of resistance and reactance components,
• short circuit current calculation.

Measurement of short circuit loop impedance ZL-PE RCD (without RCD tripping)
Measuring range according to IEC61557: 0,43...1999 Ω for 1,2 m test leads; 0,50...1999 Ω for UNI-SCHUKO adapter

• operating voltage range: 100 ... 440 V,
• rated operating voltage Un: 110 V, 115 V, 127 V, 220 V, 230 V, 240 V, 390 V, 400 V,
• control of correctness of PE terminal connection by means of a contact electrode,
• measurement is also possible when L and N circuits are swapped,
• measurement of resistance and reactance components,
• short circuit current calculation.

Voltage measurement

• frequency range 45…65 Hz,
• overvoltage alarm.

Electrical safety:

• type of insulation: double, according to IEC 61010 - 1
• measurement category: CAT IV 600 V (CAT III 1000 V)
• protection class acc. to EN 60529: IP54

Other technical data

• power supply: alkaline batteries or NiMH rechargeable batteries, LR14 (4 pcs)
• number of Z measurements (for alkaline batteries): > 5000
• time to Auto-OFF: 300 seconds
• data transmission: USB
• memory of measurement results: 990 cells, 3500 entries
• display: LCD segment
• dimensions: 288 x 223 x 75 mm
• meter weight: ca. 2 kg

„m.v.” measured value