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
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- The industrial design of this series is rugged and durable, and capable of withstanding the impact from 2 meters fall-down.
- The waterproof rating is up to IP54; therefore, it can be used in environment with water splashing or much more dust.
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Specifications:
Model:ET8102
Display:5999 Counts
Color:Black
DC Voltage:6V/60V/600V±(0.5%+3),1000V±(0.8%+10)
AC Voltage:6V/60V/600V±(0.8%+3),750V±(1.2%+10)
DC Current:600uA/6000uA/60mA/600mA±(1.2%+10),6A/10A±(2.0%+30)
AC Current:600uA/6000uA/60mA/600mA±(1.2%+10),6A/10A±(2.0%+30)
Resistance:600Ω±(0.8%+5),6KΩ/60KΩ/600KΩ/6MΩ±(0.8%+3),40MΩ±(2.5%+3)
Capacitance:60nF/600nF/6μF/60μF/600μF±(3.5%+20),6mF/30mF±(5.0%+3)
Frequency:10Hz/100Hz/1kHz/10kHz/100kHz/1MHz/10MHz±(0.1%+3)
Temperature:-20℃~1000℃,±(1.0%+5)<400℃,±(1.5%+15)≥400℃
0℉~1832℉,±(0.75%+5)<750℉,±(1.5%+15)≥750℃
NCV test:Yes
Zero line/fire wire:Yes
Duty cycle:Yes
Diode test:Yes
Continuity testing:Yes
Backlight:Yes
Date hold:Yes
True RMS:Yes
Max/Min value measurement:Yes
Flashlight:Yes
Auto power off:Yes
Low battery indication:Yes
Over range indication:Yes
Power:2 x 1.5V AAA Battery (not included)
Product Size:142 x 68 x 32 mm
Product Net Weight:187gPackage Information:
Package Size:16.5 x 10 x 5cm / 6.5 x 3.9 x 2in
Package Weight:295g / 10.4 ozPackage list:
1 x Digital Multimeter
2 x Test Leads Pens
1 x User Manual
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• 3.Wide range of applications:It’s a perfect tool for the laboratory,factory and home.
• 4.Easy to use & clear to read:With large LCD backlight display and flashlight function,convenient to read data in dark.
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Operating Conditions
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Working Temperature: -10°C ~ 40 °C
Relative Humidity: ‹ 90%
Storage Conditions: -10°C ~ 40 °C
Relative Humidity: ‹ 80%
Stable Voltage
The output voltage is between 0 and nominal value continuously adjustable
Voltage Stability: ≤0.01% +2mV
Load Stability: ≤ 0.01% +2mV
Recovery Time: ≤100µS
Temperature Coefficient: ≤ 200PPM/°C
Ripple Noise: ≤1 MVRMS(RMS)
Stable CurrentPower Stability: 0.1% + 3mA
Load Stability: 0.2% + 3mA
Ripple Noise : ≤2mArms(RMS)
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