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.

0

2 in stock

Compare

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

Based on 0 reviews

0.0 overall
0
0
0
0
0

Be the first to review “MRU-21 Earth Resistance Meter”

There are no reviews yet.

  • UT352 Sound Level Meter

    0 out of 5
    (0)

    1. MAX/MIN modes

    2. Auto power off (cancelable)

    3. 63 sets data storage

    4. AC/DC analog signal output

    5. Over/under range indication

    6. Data hold, LCD backlight

    7. Simulated analog bar

    8. A (ear)/C (machine) weighting modes

    9. Manual/auto range selectable

    10. Fast/slow response rate (fast: 125ms, slow: 1s)

    11. Powered by batteries or external power source

    SKU: n/a
  • LM585LD Laser Levelers

    0 out of 5
    (0)

    Features of LM570/585 Series Laser Levelers

    Certificates (LM570LD-II/575LD only): CE, UKCA

    ● Osram LD green laser
    ● Self-leveling mode & manual mode
    ● Outdoor pulse mode

    ● 5200mAh Li-ion battery
    ● Type-C DC-in port
    ● Complimentary bracket

    SKU: n/a
  • ,

    JM 6125 TOOL KIT

    0 out of 5
    (0)

    Our precision screwdriver sets have 47 kinds of matte chrome-plated screwdriver bits & 9 kinds of matte chrome plated sockets. The screwdriver bit has a high-precision bite, double anti-rust treatment, pull-in switch, and incarnate 12 operation combinations, this high-end household screwdriver set can calmly deal with various maintenance scenarios, and can always control them with ease. Our precision household screwdriver sets are widely used in bicycle repair, model disassembly, home appliance repair, mechanical repair, and digital product disassembly.

     

    SKU: n/a
  • RF-7050TVP+

    0 out of 5
    (0)
    SKU: n/a
  • Mechanic Special Solder Paste XG-50 35G 183°C

    0 out of 5
    (0)

    This is solder paste for soldering small SMD components in a reflow oven or with a hot air soldering station. comes in a small container for prototyping or repairing job.This pack is the right amount of solder paste for most hobby projects. This paste is the replacement for solder wire used in Through-hole soldering, some times solder flux is referred to as solder paste.

    SKU: n/a