Earth Resistance Meter-MRU 30

Make: Sonel (Made in Poland )
Model Code: Sonel MRU-30
Part Code: MRU-30
Order Code: KLSO091030

The MRU-30 earth resistance meter is designed to measure single and multiple earthing’s using auxiliary electrodes and/or clamps. Moreover it is possible to measure ground resistivity (Wenner method) and verify the continuity of equipotential bonding’s and protective conductors.

Features:

✔ Measurement of auxiliary electrode resistances R_S and R_H

✔ Measurement of interference voltage

✔ Measurement in the presence of interference voltages in networks with frequencies of 50 Hz and 60 Hz

✔ Selection of maximum measurement voltage (25 V and 50 V)

SKU: KLSO091030
Brand Category: Sonel (Poland)
Product Category: Earth Resistance
Warranty: 1 Years (against manufacturing defects only)
Note: Demo Available

Earth Resistance Meter-MRU 30

The Sonel MRU-30 compact earth resistance and soil resistivity meter enables efficient and easy earth resistance measurement. Many measurement methods available in a small casing.

The MRU-30 meter is surprisingly versatile in nature. The instrument can be used to perform single earthing measurements as well as multiple earthing measurements using additional clamps or electrodes. Additional capabilities of this handy device include measurement of soil resistivity using the Winner method, as well as verification of the continuity of equalizing connections and protective conductors. Another advantage of the Earth Resistance and Resistivity Meter- Sonel MRU-30 meter is the clear transmission of information alerting the user to possible dangers or detected irregularities. Information appears on the screen both before and after the test.

Measurement methods

3-pole and 4-wire method – measurement of earthing systems using auxiliary probes
3-pole method with clamp – measurement of earthing systems with multiple earth electrodes
Two-clamp method – measurement of earthing system when the auxiliary probes cannot be used
Earth resistivity – Wenner method
Resistance of earth connection and equipotential bonding measured using current ≥200 mA with auto-zero function – meets the requirements of EN 61557-4

Application

The MRU-30 earth resistance meter is designed to measure single and multiple earthings using auxiliary electrodes and/or clamps. Moreover it is possible to measure ground resistivity (Wenner method) and verify the continuity of equipotential bondings and protective conductors.

Capabilities

The meter provides the ability to make grounding tests with all kinds of the technical method. High immunity to interference allows it to be used even in difficult conditions in circuits with interfering currents. Simple and intuitive operation makes the measurements easier and faster. The meter has internal memory. The measurement results can be transmitted to a computer for data processing and preparation of documentation from the grounding tests.

Technical Data

Technical Specifications

Type of insulation according to EN 61010-1 and IEC 61557

double

Measuring category according to EN 61010

III 300 V

Ingress protection

IP65

power supply

Li-Ion 13.2 V 5.0 Ah rechargeable battery
90 V...260 V, 50 Hz/60 Hz from electric grid

dimensions

200 x 150 x 73 mm
7.9” x 5.9” x 2.9”

weight

ca. 1.14 kg
ca. 2.5 lbs

storage temperature

-20…+60°C
-2...+140°F

operating temperature

-10…+50°C
14...122°F

humidity

20…90%

Nominal temperature

23 ± 2°C
73.4°F ± 3.6°F

Reference humidity

40%…60%

Memory of measurement results

990 results

data transmission

USB 2.0

Quality standard – development, design and production

ISO 9001

Accessories/ Probes

Reflectors, self-adhesive (1 pack = 5 off, each 150 mm long)

Order Number: 0554 0493

Request For price

ISO calibration certificate/rpm

Order Number: 0520 0012

Request For price