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Sonel MZC-20E Loop Impedance Meter - CATIII

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Handheld Loop Impedance Tester CATIII

Test Loop Impedance with the handheld, battery operated MZC-304E

Short circuit loop impedance ZL-PE,ZL-N,ZL-L , resistance and reactance measurement
Short circuit loop impedance ZS
Nominal work voltage UnL-N / UnL-L: 220/380 V, 230/400 V, 240/415 V,
Voltage range 180…270 V (for ZL-PE i ZL-N) and 180…460 V (dla ZL-L),
Nominal network frequency fn: 50 Hz, 60 Hz,
Frequency range: 45…65 Hz,
Maximum measurement current 7,6 A for 230 V (3 x 10 ms), 13,3 A for 400 V (3 x 10 ms),
PE terminal connection correctness check with the help of touch electrode (ZL-PE, ZL-PE(RCD)),
Short circuit current calculation for nominal voltage
Short circuit loop resistance RS and reactance XS
Short circuit loop impedance ZL-PE RCD measurement - without tripping the circuit breaker
Short circuit loop impedance ZS measurement
No RCD trip for I?n≥30 mA,
Nominal work voltage Un: 220 V, 230 V, 240 V,
Voltage range: 180…270 V,
Nominal network frequency fn: 50 Hz, 60 Hz,
Frequency range: 45…65 Hz,
PE terminal connection correctness check with the help of touch electrode
Short-circuit current calculation for nominal voltage
Short circuit resistance RS and reactance XS display range (for ZL-PE RCD)*
Low voltage resistance measurement
Measurement of continuity of equipotential bondings and protective conductors with ±200 mA current
Open terminals voltage: 4…9 V DC,
Output current at R<2 Ω: min 200 mA (ISC: 200...250 mA),
Test leads resistance compension,
Measurement for both current polarization
Low current resistance measurement
Open terminals voltage 4...9 V DC
Output current ISC< 8 mA,
Acoustic signal for measured resistance < 30 Ω ± 50%, test leads resistance compensation.
AC voltage measurement
Frequency range 45...65 Hz,
Test result refreshing: twice per second
Frequency measurement

Electrical safety:

- type of insulation double, according to EN 61010-1 and IEC 61557
- measurement category III 300 V according EN 61010-1
- protection class acc. to PN-EN 60529 IP67

Other technical data:

- power supply LR6 alkaline batteries or NiMH rechargeable AA batteries (4 pcs.)
- dimensions 220x98x58 mm
- storage temperature -20...+70 C
- instrument weight incl. batteries 509g
o - working temperature -10...+50 C
 

View Datasheets

Sonel MZC-20E Loop Impedance Tester datasheet

Earth Fault Loop Testers

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