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
MS6812 Cable Tracker
The Cable Tracker is designed to identify and trace wires or cables within a group without damaging the insulation.For telephone line, it can identify some state in the line, and more convenience to install, debug, maintain telephone line.There is a Sender(MS6812-T) and a Receiver(MS6812-R)included in The Cable Tracker
● Sound and Light Instruction
● Cont and Tone LED LightApplications
– Judge Continuity of the Cables or Wires
– Track the Cables or Wires, and Diagnose the Break Point
– Receive the Tone Signal on the Cables or Wires(Telephone Line)
– Identify the State in the Working Telephone Line(Clear, Ringing, Busy)
– Send a Single Solid or a Dual Alternating Tone to the Target Cables or WiresSKU: n/a -
Multimeters, Phase Detector Meters
UT261B Phase Sequence and Motor Rotation Indicator
UT261 series is used for determining 3-phase power phase sequence, missing phase indication, and motor phase rotation (UT261B). UT261A and UT261B can measure AC voltage of 40~700V and 90~600V respectively. These devices can operate in frequency range of 15~400Hz. UT261 are durable devices which can withstand impact from 2 meter’ s height. Test leads with protective tubing are included in optional accessories.
SKU: n/a -
Insulation Tester
JM Z16 HEAT INSULATION MAT
JAKEMY JM-Z16 Magnetic Heat Insulation Silicone anti-static Working Mat for Soldering Assembling Electronics DIY Repair.
Feature:
Brand new and high quality.
Heat-resistant coefficient: 300 Celcius degree (hot wind) / 230 Celcius degree (direct contact).
Anti-static coefficient: 1*10E12ohm.
Units design, easy to keep track of parts.
Food grade material, non-toxic and safe in use. 6. Suitable for electronics devices repairing.Accessories:
Anti-static and heat-proof working mat*1SKU: n/a -
Digital Multi Meter
UT60BT
Features of UT60 Series Digital Multimeters
Certificates: CE, UKCA, cETLus
● 9999 counts
● True RMS
● Bluetooth
● Duty cycle
● Diode/Continuity test
● Temperature● Non-contact voltage
● Analog bar/Data hold
● Backlight/Relative mode
● Auto/Manual range
● Low battery indication
● Three-color LED light indicatorVideo for UT60EU:
Video for UT60S:
SKU: n/a
There are no reviews yet.