MRU-21 Earth Resistance Meter

Availability:

2 in stock


Possible measurements:

  • earth resistance measurment with 3-pole method,
  • measurement of continuity of equipotential bondings and protective conductors with auto-zero function – with current 200 mA,
  • resistance measurement using 2-pole method.

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Earth Resistance Meter

Weight 1.4 kg
Dimensions 29 × 22 × 7 cm

Measurement of earthing resistance 
measurement range to IEC61557 – 5:
0,50 Ω…1,99 kΩ for Un=50 V;
0,68 Ω…1,99 kΩ for Un=25 V;

Range Resolution Accuracy
0,00…9,99 Ω 0,01 Ω ±(2% m.v. + 3 digits)
10,0…99,9 Ω 0,1 Ω
100…999 Ω 1 Ω
1,00k…1,99 kΩ 0,01 kΩ

• measurement current: under short circuit >20 mA,
• voltage on open terminals: selectable <25 V AC or <50 V AC,
• frequency of measurement current: 125 Hz

Measurement of interference voltage UN (RMS)

Range Resolution Accuracy
0…100 V 1 V ±(2% m.v. + 3 digits)

• measurement for DC and AC 45…65 Hz

Measurement of resistance of auxiliary electrodes RH i RS

Range Resolution Accuracy
0…999 Ω 1 Ω ±(5% (RS+RE+RH) + 3 digits)
1,00k…9,99 kΩ 0,01 kΩ
10,0k…50,0 kΩ 0,1 kΩ

Measuremet of continuity of equipotential bondings and protective conductors 
measurement range to IEC61557 – 4: 0,13 Ω…199 Ω

Range Resolution Accuracy
0,00…9,99 Ω 0,01 Ω ±(2% m.v. + 3 digits)
10,0…99,9 Ω 0,1 Ω
100…199 Ω 1 Ω
  • measuring method: technical 2-pole method,
  • max. voltage on open terminals: 13 V,
  • measurement current: under short circuit >200 mA,
  • auto-zero function for measurement leads

Electric security:

  • type of insulation: double, according to EN 61010 – 1and IEC 61557
  • measurement category: CAT IV 300 V acc. to EN 61010 – 1
  • protection class acc. to EN 60529: IP54

Rated operational conditions:

  • operation temperature: -10…+55°C
  • storage temperature: -20…+70°C
  • humidity: 20…80%

Other technical data:

  • LCD display: segment, backlit
  • interface: USB,
  • number of measurements carried out of set of batteries: > 1000 (5 Ω, 2 meas./min.)
  • warranty: 2 years
  • dimentions: 288 x 223×75 mm
  • weigth: 1,4 kg

Brand

SONEL

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    Overview
    Essential details
    Place of Origin:
    Guangdong, China
    Brand Name:
    vici
    Model Number:
    CM-2016
    Display Type:
    Digital Only
    Measuring Current Range:
    60A/600A/800A
    Measuring Voltage Range:
    600mV/6V/60V/600V
    Measuring Resistance Range:
    600Ω/6kΩ/60kΩ/600kΩ/6MΩ/60MΩ
    Measuring Capacitance Range:
    6nF/60nF/600nF/6uF/60uF/600uF/6mF/60mF
    Measuring Inductance Range:
    /
    Operating Temperature:
    23±5℃
    Dimensions:
    185*65*32mm
    Weight:
    200g(including the batteries)
    Backlight display/Clamp light dispaly:
    YES
    NCV:
    YES
    Diode test:
    YES
    clamp open:
    28mm
    power supply:
    2pcs 1.5V batteries
    Sampling rate:
    3 times/second
    AC frequency response:
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    Operation method:
    Auto range
    OEM service:
    Available
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    Vicimeter CM-2016 AC/DC 3 5/6 Digital Clamp Meter
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