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A digital multimeter shows a voltage of 230 V and a frequency of 50.0 Hz. It has an orange casing.

A measuring device with a digital display, showing voltage '2238 V' and resistance '0.73 Ω'. Orange casing with multiple controls.

An orange electrical device for measuring voltage (223.8 V) and resistance (0.73 ohms), with various control elements.

A person is holding a measuring device close to an electrical control cabinet with red and blue electrical connectors. The device is displaying measurement readings.

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Highlights & Details

Loop impedance meter MZC-304 F

Loop impedance measurement with a resolution of 0.01 Ω
Loop impedance measurement in networks that are secured with a FI switch ≥30 mA with a resolution of 0.01 Ω (180 to 270 V)
Measurement in mains 220/380 V, 230 V/400 V, 240/415 V (range 180 to 460 V)
180 to 270 V (for ZL-PE and ZL-N) and 180 to 460 V (for ZL-L)
Max. 7.6 A for 230 V (3x10 ms), 13.3 A for 400 V (3x10 ms)
Determination of the short-circuit current Ik
Measurement with reversed L- and N-ladders
Resistance (RS) and reactance measurement (XS)
Low voltage measurement - continuity measurement

Technical specifications

Voltage
Measuring range 0 - 500 V
Resolution: From 0.1 V
Accuracy 2 %
Short-circuit loop impedance
2-conductor method Measurement with standard current (max. 13.3 A)
Measurement range 0.13 1999 Ω
Resolution: From 0.01 Ω
Accuracy 5 %
2-conductor method Measurement without RCD resolution
Measuring range 0.5 Ω - 1999 Ω
Resolution: From 0.01 Ω
Accuracy from 6%
Short-circuit current display
2-conductor method Measurement with standard current (max. 13.3 A)
Display range 1,110 - 9999 A.
Resolution: From 0,001 A
2-conductor method Measurement without RCD resolution
Display range 1,110 - 9999 A.
Resolution: From 0,001 A
Continuity measurement of earthing and potential equalization conductors with current 200 mA
Measurement range 0.12 to 400 Ω
Resolution: From 0.01 Ω
Accuracy 2 %
Resistance measurement with low current
Measurement range 0.0 to 1999 Ω
Resolution: From 0.1 Ω
Accuracy 3 %

Product type: Electrical tester

: Manufacturer's standards (with certificate)

Reading category: CAT IV 300 V
CAT III 600 V

Interfaces: USB

Dim: (L x W x H) 61 x 102 x 220 mm

Weight: 800 g

: IP67

Reading range (VDE): Loop impedance
Voltage
Current
Frequency
Resistance

Display type: Digital (LCD)

Reading range

Width: 102 mm

Height: 220 mm

Length: 61 mm

Voltage supply: Battery

Memory (space): 990

Memory: Yes

Type: MZC-304 F

Documents & Downloads

Datasheet

Datasheet 3059137 Sonel MZC-304 F Electrical tester

User & Safety Instructions

User & Safety Instructions 3059137 Sonel MZC-304 F Electrical tester

Description

The extra small and handy loop impedance measuring device MZC-304 F from Sonel is used to measure the loop impedance of ZL-PE, ZL-N and ZL-L in 230/400V networks. The test current varies depending on the mains voltage between 7.6A and max. 13.3A. The impedance ZL-PE can also be measured without triggering the RCD. Tests can be accomplished with both test leads and with the handy UNI protective contact adapter. With comprehensive measuring accessories, the measurements can be made in 3-phase networks. Further measurements such as AC voltage, frequency or resistance of the earth conductor can be transferred wirelessly via OR-1 adapter to the PC and evaluated. The device is intended for personnel who carry out measurements in single and multi-family houses, offices, industrial plants and all other locations with a low-voltage system. In addition, the meter is intended for maintenance personnel in objects where short-circuit currents reach 4.4 kA (measurements according to EN 61557). MZC-304F is also the perfect tool for testing circuits in which an additional protective device in the form of residual current circuit breakers is used.

This text is machine translated.