MRU-30 Earth Resistance and Resistivity Meter
3 in stock
-
It allows to take the measurements of:
- earthing resistance using auxiliary electrodes,
- earthing resistance using auxiliary electrodes and clamp (for measurements of multiple earthing),
- earthing resistance using double clamps for measuring multiple earthing without underground connections.
- ground resistivity (Wenner method),
- continuity of equipotential bondings and protective
- conductors (meeting the requirements IEC 60364) with auto-zero function – with current 200mA.
Additionally:
- measurement of resistance of auxiliary electrodes RS and RH,
- measurement of interference voltage,
- measurement in the presence of interference voltage in the power network
- with frequency 50Hz, 60Hz,
- selection of maximum measuring voltage (25V and 50V),
- introducing the distance between the electrodes for the resistivity in metres (m) and feet (ft),
- memory of 990 measurements (10 banks of 99 cells each),
- calibration of clamp used,
- data transmission to the computer (USB),
- indication of battery state.
₨0
3 in stock
CompareThe Sonel MRU-30 uses most known methods of earth resistance measurements. Tests can be performed using the 3-pole, 4-pole, 3-pole with auxiliary clamp and also, additionally, the MRU-30 employs the two clamp method of measurement, without the use of auxiliary test rods which can’t be used in some situations. Complementary features of the MRU-30 are measurements of soil resistivity, continuity measurement of protective and equipotential conductors and, using clamps, leakage currents and interference voltages.
- Robust and weatherproof (IP65) – no ingress of dust, water protected by a nozzle against enclosure from any direction.
- Ergonomic casing – small and handy casing to make the measurements more convenient than before.
- Built-in rechargeable battery – saving time to replace flat batteries; can be recharged from Power Bank and Cigarette Lighter Socket!
- Clear on-screen notes – displayed on screen before and after the measurement to alert user of possible dangers and irregularities.
- Many measurement methods available in a small, portable casing
| Weight | 5 kg |
|---|---|
| Dimensions | 20 × 15 × 7 cm |
Measurement of interference voltage UN (RMS)
| Range | Resolution | Accuracy |
| 0…100 V | 1 V | ±(10% m.v. + 1 digit) |
Measurement of continuity of equipotential bondings and protective conductors (Rcont)
measurement range to IEC 61557-4:2007: 0,13 Ω…1999 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…1999 Ω | 1 Ω |
• measurement current: under short circuit >200mA
• frequency of measurement current: 125 Hz (for networks 50 Hz) and 150 Hz (for networks 60 Hz)
Measurement of earthing resistance (method 3- and 4-pole)
measurement range to IEC 61557-5:2007: 0,53 Ω…9999 Ω (dla 50 V)
| Range | Resolution | Accuracy |
| 0,00…19,99 Ω | 0,01 Ω | ±(3% m.v. + 3 digits) |
| 20,0…199,9 Ω | 0,1 Ω | |
| 200,0…1999 Ω | 1 Ω | ±5% m.v. |
| 2000…9999 Ω | 1 Ω | ±8% m.v. |
• 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 (for networks 50 Hz) or 150 Hz (for 60 Hz).
Measurement of multiple earthing esistance with using the clamp and auxiliary electrodes (3p + clamp)
| Range | Resolution | Accuracy |
| 0,00…19,99 Ω | 0,01 Ω | ±(3% m.v. + 3 digits) |
| 20,0…199,9 Ω | 0,1 Ω | |
| 200…1999 Ω | 1 Ω | ±5% m.v. |
| 2000…9999 Ω | 1 Ω | ±8% m.v. |
• voltage on open terminals: selectable 25 V AC or 50 V AC,
• measurement current: under short circuit >20 mA,
• frequency of measurement current: 125 Hz (for networks 50 Hz) and 150 Hz (for networks 60 Hz)
Measurement of resistance of auxiliary electrodes RH i RS
| Range | Resolution | Accuracy |
| 0…999 Ω | 1 Ω | ±(5% m.v.+ 8 digits) |
| 1,00k…9,99 kΩ | 0,01 kΩ | |
| 10,0k…19,9 kΩ | 0,1 kΩ |
Measurement of multiple earthing resistance with using double clamps
| Range | Resolution | Accuracy |
| 0,00…19,99 Ω | 0,01 Ω | ±(10% m.v. + 8 digits) |
| 20,0…99,9 Ω | 0,1 Ω | ±(20% m.v. + 3 digits) |
• frequency of measurement current: 125 Hz (for networks 50 Hz) and 150 Hz
(for networks 60 Hz)
Measurement of ground resistivity
Measurement method: Wenner, ρ=2πLRE
| Range | Resolution | Accuracy |
| 0,00…9,99 Ωm | 0,01 Ωm | depending on measurement accuracy RE with 4p method, but not less than ±1 digit |
| 10,0…99,9 Ωm | 0,1 Ωm | |
| 100…999 Ωm | 1 Ωm | |
| 1,00…9,99 kΩm | 0,01 kΩm | |
| 10,0…99,9 kΩm | 0,1 kΩm | |
| 100…999 kΩm | 1 kΩm |
L – distance between probes: 1…50 m.. or 1…150 ft
Electric security:
- type of insulation: double, according to EN 61010-1 i IEC 61557,
- measurement category: CAT III 300V wg EN 61010-1,
- protection class acc. to EN 60529: IP65,
Rated operational conditions:
- operation temperature: -10…+55°C,
- storage temperature: -20…+80°C,
- humidity: 20…90%,
Other technical data:
- LCD display: segment, backlit,
- dimensions: 200x150x74 mm.
Brand
SONEL
Based on 0 reviews
Be the first to review “MRU-30 Earth Resistance and Resistivity Meter”
-
Oscilloscopes
UTD2072CEX-II Digital Storage Oscilloscope
1. 2 channels
2. 70MHz/100MHz bandwidth; 1GSa/s real-time sampling rate3. Up to 28Mpts memory depth4. Calibration signal output: 10Hz, 100Hz, 1kHz (by default),10kHz or 100kHz5. Max 10Mpts waveform record6. 8-inch TFT LCD, WVGA (800X480)SKU: n/a -
Soldering Iron
YH 907F IRON FOR 898BD+
- This 907F handle (5-pin) is ONLY for genuine YIHUA 939D+ soldering stations. (To avoid incompatibility issue, please correctly identify the model number & pin number from your machine. )
- Note：this 907F soldering iron handle is not compatible with other stations except the genuine YIHUA 939D+ soldering station.
- 1 Year (USA Exclusive) – Our team is providing professional assistance 24/7 right on Amazon.Welcome to drop us a message at Amazon’s Messaging System if you have any queries with this spare part. We will help confirm the compatibility and recommend you the safest match part.
SKU: n/a -
Clamp Meters
UT207B 1000A True RMS Digital Clamp Meter
1. Flashlight button: Short press thisbutton to turn on/off the flashlight.
2. Flexible current probe (optional) to extendthe AC current measurement range to3000A
3. Inrush current capture
4. NCV Multi-Segment Display and audio/visual alarm
5. True RMS/Auto backlight
6. NCV/Function retention
SKU: n/a -
Oscilloscopes
UNI-T MSO3154E 150MHz Mixed Signal 4 Channel Digital Oscilloscope
Analog bandwidth 150MHz 250MHz Channels 2+16 digital 4+16 digital 2+16 digital 4+ 16digital Sampling rate (Analog) 2.5GS/s (Single channel), 1.25GS/s (Dual channels) Sampling rate (Digital) 1.25GS/s (Eight channels), 625MS/s(Sixteen channels) Memory depth 70Mpts Waveform capture rate 200,000wfms/s Time base scale 2ns/div~50s/div (Real-time sampling rate, memory depth display ) Time base scale (digital) 2ns/div~40S/div[Step by 1-2-4 stall] Input impedance (1MΩ±1%) II (20pF±3pF) Input impedance digital (101kΩ±1%) II (9pF±1pF) Vertical scale 1mV/div~20 V/div (1 MΩ) DC gain accuracy <5mV: ±3%, ≥5mV: ±2% Waveform record 100,000 frames Trigger types Edge, Runt, Window, Nth Edge, Delay, Overtime, Duration, Setup/Hold, Pulse Width, Slop, Video, Code; RS232/UART, I2C, SPI, USB,
CAN, LIN, FlexRayBus decode RS232/UART, I2C, SPI, USB, CAN, LIN, FlexRay Waveform operations A+B, A-B, A×B, A/B, FFT, editable advanced and logical operations Auto measurements
Max, Min, High, Low, Ampl, Pk-Pk, Middle, Mean, CycMean, RMS, CycRMS, Period, Freq, Rise, Fall, RiseDelay, FallDelay, +Width,
-Width, FRR, FRF, FFR, FFF, LRF, LRR, LFR, LFF, +Duty, -Duty, Area, CycArea, OverSht, PreSht, Phase, 34 parameters in totaldigital
channel: Freq, Period, +Width, -Width, +Duty, -Duty, RiseDelay A→B,FallDelay A→B, Phase A→B, Phase B→AMeasurement display 5 types Measurement statistics Average, Max, Min, standard deviation and number of measurements Frequency counter 6 bits Standard interfaces USB Host, USB Device, LAN, EXT Trig, AUX Out (Trig Out, Pass/Fail), AWG,UT-M15 logic analyzer probe, VGA Standard Accessories
USB interface cable UT-D14 Passive Probe x 2/4 (1 x , 10 x switchable,300MHz,) UT-P06 Passive Probe x 2/4 (1 x , 10 x switchable,200MHz,) UT-P05 16CH Logic analyzer probe UT-15M SKU: n/a
Related products
-
Earth Ground Resistance Testers
UT275 Clamp Earth Ground Testers
UT270 series can measure the grounding system of a circuit without disconnecting the ground wires and auxiliary electrode. It clamps the grounding circuit and measures the grounding resistance fast and safely. It can measure resistance as low as 0.01Ω and has a high resolution of 0.001Ω. It has overload alarm function, which can help to setup the alarm value within the ranges. The clamp has double insulation, which strengthens the anti-interference.
SKU: 90000 -
Earth Ground Resistance Testers
UT521 Earth Groud Testers
UT520 series earth resistance tester hasthe functions of backlight display, low battery display, data hold, datastorage, auto power off and power saving. It can not only be used for accurate three-wiremeasurement but also simple two-wire measurement.
It is applicable to measuring the earthresistance of all kinds of electrical power system, electrical equipment and anti-thunderequipment. It can also measure the earth voltage. It is applicable to testingoperating earth systems of smelting, communication, manufacture, fossil oil,national defense, electricity, chemical industry and construction.
SKU: n/a -
Earth Ground Resistance Testers
UT278A Clamp Earth Ground Testers
UT270 series is widely used in earth ground and circuit resistance measurements of electric power, telecommunications, meteorology, oil field, construction and industrial electrical equipment. It can measure the ground system of the circuit without disconnecting grounding wires, auxiliary electrode. UT278A can also measure leakage current and neutralline current of earth ground system
.SKU: n/a
There are no reviews yet.