Žemės varžos matuoklis SONEL MRU-21 su priedais

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Prekė: Žemės varžos matuoklis SONEL MRU-21 su priedais. Kategorija: Detektoriai.

• Gamintojas: Sonel
• Modelis: MRU-21

Ground Resistance Meter

SONEL MRU-21

✔️ The Sonel MRU-21 ground resistance meter is a simple meter that allows for technical method ground resistance measurement and continuity testing of protective and equipotential bonding connections.

✔️ The meter enables ground resistance measurements using auxiliary electrodes with the 3-pole method, as well as 2-pole method resistance measurements.

✔️ The device is also suitable for testing the continuity of equipotential bonding and protective connections.

The set includes:

• 1 pc. Measurement ground resistance MRU-21
• 1 pc. Cable 1,2 m blue 1 kV (banana plugs) WAPRZ1X2BUBB
• 1 pc. Cable 2,2 m black 1 kV (banana plugs) WAPRZ2X2BLBB
• 1 pc. Cable 15 m blue for measuring grounding on spool (banana plugs) WAPRZ015BUBBSZ
• 1 pc. Cable 30 m red for measuring grounding on spool (banana plugs) WAPRZ030REBBSZ
• 2 pcs. Probe ground 30 cm WASONG30
• 1 pc. Crocodile black 1 kV 20 A K-01
• 1 pc. Crocodile blue 1 kV 20 A K-02
• 4 pcs. Battery alkaline LR14 (C) 1,5 V WABATLR14
• 1 pc. Container simple battery operated WAPOJ1
• 1 pc. Case L-4
• 1 pc. Szelki for meter set WAPOZSZEKPL
• 1 pc. Cable USB WAPRZUSB
• 1 pc. Certificate of calibration WADOKCK
• Instruction manual in Polish

The calibration certificate is a document issued free of charge in the production process of the meter.

It confirms the conferral of metrological properties and maintaining measurement consistency.

In the calibration certificate under the date of issue of the document there is a dotted field: “Date of commissioning”. This is the field left for the instrument user, in which the date of purchase should be entered.

The entered date of purchase can be used to determine the next calibration date based on the manufacturer’s recommendation below:

Subsequent execution of the metrological confirmation (calibration) is recommended to be carried out within 12 months from the date of purchase, but no later than 24 months from the date of production / checking.

Another metrological inspection is carried out by the Research and Calibration Laboratory of Sonel S.A. companies, and the issued document is called - Calibration Certificate.

Additional features

✔ Measurement of resistance of RS and RH auxiliary probes

✔ Measurement of confounding voltage

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

✔ Resetting function resistance of measuring wires (RCONT zero)

Software for MRU-21 Device

SONEL SCHEMATIC (not included with MRU021 Meter)

✔️ The software allows for the creation of complex electrical diagrams.

✔️ It includes extensive libraries of electrical symbols – diagram creation uses a "drag and drop" method. The library editor allows adding your own symbols.

✔️ Properties of a given object can be edited.

✔️ Objects (measurement points) along with their properties can be exported to the Sonel Electrical Measurements program.

✔️ Importing scanned diagrams with the ability to add elements will definitely make the user's work easier, as will connecting diagram elements, dimensioning, and layer editing.

✔️ The exported diagram can be in BMP, WMF, or JPG format.

Areas of application

✔ MRU-21 was designed to provide customers with such a measuring instrument that is confident in operation, technically advanced and at the same time easy to use.

✔ It works well both in research in industrial plants and in companies providing electrical measurement services.

✔ MRU-21 allows you to check individual groundings, as well as multiple grounding systems.

SPECIFICATION- Markings in the table

1. Measuring functions
2. Measuring range
3. Display range
4. Resolution
5. Accuracy

A- Interfering voltage

B- Resistance of grounding and compensating wires

C- Ground resistance

• C1- 2-wire method
• C2- 3-wire method
• C3- Resistance of auxiliary probes

Construction of the MRU-21 Meter

1. - Starting the measurement procedure
2. - Writing to memory, approval to settings
3. - Up/ Down- change the value of the parameter, change the cell in memory, Left/Right- change the parameter, change the bank in memory.
4. - Viewing measurement components in memory
5. - Rotary Function Switch- selection of measurement function
6. - Turn the display backlight on and off
7. - Input to meter settings
8. - Turning the meter power on and off.
9. - Socket for connecting a current electrode
10. - Socket for connecting a voltage electrode/ measuring socket continuity of connections
11. - Socket for connection of measured ground, Measuring socket continuity of connections
12. - Output from settings, option

Possibilities

✔ LARGE READABLE DISPLAY indicates resistance values and auxiliary information in all weather conditions. Additional warnings inform the user of irregularities during the measurement.

✔ IP54 DEGREE HOUSING means safety of use during difficult weather conditions and no worries due to splashes.

✔ BUILT MEMORY allows you to store a set of test results in 10 banks of 99 measuring points. These results can be easily transferred to the Sonel Reader computer program for archiving or subsequent analysis.

Measurement methods

✔ 3-wire method – grounding measurement with auxiliary probes

✔ 2-wire method – simplified measurement of ground resistance

✔ Resistance of grounding and compensating cables with current ≥200 mA with auto-zeroing function – meets the requirements of PN-EN 61557-4

✔ Link to copy and paste in your browser:

https://www.youtube.com/watch?v=NLoOuja4ABM

Comparison of measures

Signs in table

1. Measurement of ground resistance by three-pole method
2. Measurement of ground resistance by four-wire method
3. Measuring current in ground resistance measurements [mA]
4. Maximum resolution []
5. Measurement of ground resistance by three-pole method with additional clamps
6. Measurement of grounding impedance by impulse
7. Measurement of ground resistance by two-clamp method
8. Measurement of current leakage with flexible clamps
9. Power supply
10. Measurement of soil resistivity

Specifications