Earth Resistance Meter
MRU-21 Earth Resistance Meter
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
CompareWeight | 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
Based on 0 reviews
Be the first to review “MRU-21 Earth Resistance Meter”
-
Wire & Cable Testers
LKZ-1000 Wires and pipe locator
- Passive or active modes of tracing.
- Detection of underground live wires.
- Detection of underground wires with no voltage (radio mode).
- Detection of underground wires with no voltage using a transmitter (galvanised, inductive or clamp-based connection).
- Tracing metallic or non-conductive pipes using an additional probe.
- Tracing non-conductive pipelines using a “floating” probe.
- Tracing a determined cable.
- Determining the depth of a cable.
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 retentionSKU: n/a -
Analog Multimeters
ANALOG METER DE 360
Features Of Analog Multimeter DE360TRN:
- Tests AC voltage, DC voltage, DC current, resistance, continuity and batteries.
- 20kOhm/V DC sensitivity.
- Mirrored scale.
- With fuse overload protection circuitry incorporated.
- Easy to read, colour-coded analogue displays.
- Manual range selection.
- Pocket-sized analogue tester.
SKU: n/a -
Usb Tester
UNI T UT658DUAL USB Tester
Features of UT658 Series USB Testers
Certifications: CE, UKCA
● Type-A/C interface
● CE certification
● 10 sets of data storage
● Loop equivalent resistance measurement (1-480Ω)
● Same screen shows voltage, current, power, capacity, etc.
● Support fast charge protocol
SKU: n/a
There are no reviews yet.