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UT521 Earth Groud Testers
- Vendor:
superworld
Subtotal: ₨39,600
Earth Ground Resistance Testers
MRU-21 Earth Resistance Meter
Availability:
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
CompareEarth Resistance Meter
| Weight | 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
Brand
SONEL
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LCR Meter
UT622A Digital Inductance LCR Meter
Specifications UT622A UT622C UT622E Certificates CE, RoHS Test frequency 100Hz, 120Hz, 1kHz, 10kHz 100Hz, 120Hz, 1kHz, 10kHz, 100kHz 100Hz, 120Hz, 1kHz, 10kHz, 100kHz Test signal level 0.1Vrms, 0.3Vrms, 1Vrms Output impedance 100Ω Measurement parameters Primary: L/C/R/Z
Secondary: D/Q/θ/ESRPrimary: L/C/R/Z/DCR Secondary: D/Q/θ/ESR Auto LCR √ Test terminals Three-terminal test jacks, five-terminal test sockets Test rate Fast (20 times/s), medium (5 times/s), or slow (2 times/s) DCR test rate — — Fast (20 times/s), medium (5 times/s), or slow (2 times/s) Ranging mode Auto/hold Tolerance range 1%~20% Testing circuit mode Series/parallel mode Clearing correction Open/short circuit Fuse of test ports 0.1A/250V Communication interface Mini-USB LED alarm for tolerance
(pass: green; fail: red)√ √ √ Display range Maximum reading 99999 Minimum resolution 0.0001 Maximum accuracy 0.001 L 0.00μH~99.999H C 0.00pF~99.999mF Z/R 0.0000Ω~9.9999MΩ ESR 0.0000Ω~999.99Ω D 0.0000~9.9999 Q 0.0000~99999 θ -179.9°~179.9° DCR — — 0.01mΩ–20.000MΩ Temperature coefficient 0.1× (specified accuracy) /°C (0°C~18°C or 28°C~40°C) General Characteristics Power 3.7V 1800mAh lithium polymer battery; Input: 220V (1±10%), 50Hz (1±5%); Mini-USB output: 5V, 1A Display 2.8′ TFT LCD 320X240 Product net weight 420g Product size 93mm x 192mm x 44mm Standard accessories Short circuit board (UTR-001), USB cable, 5V 1A power adapter, Four-terminal Kelvin testleads (UTR-L100k-H) (UT622C/E), Alligator clip test leads with rubber plugs (UTR-002)(UT622A), English manual SKU: n/a
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It allows to take the measurements of:
- earthing resistance using auxiliary electrodes,
- earthing resistance using auxiliary electrodes and clamp (for measurements of multiple earthing),
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- ground resistivity (Wenner method),
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- 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),
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- data transmission to the computer (USB),
- indication of battery state.
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