Tentech EM4058 Earth Tester- Ground Resistance & SoilResistivity, Portable

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Location: Miami, Florida
Ships to: US,
Item: 296836723866

All returns accepted:ReturnsNotAccepted
DC Voltage Range:70,000 V
Maximum Input Voltage:60 V
Number of Counts:9999 Max
MPN:EM4058
Tentech By Megabras:Tentech By Megabras
Measurement Category:CAT III
Form Factor:Handheld
Current Range:20 kΩ
Test/Measurement Functions:Resistance
Protection Against Liquids:Splashing Water
Unit Type:Unit
IP Rating:IP54
AC Voltage Range:0-60 V
Features:Smart Digital Earth Tester,Multiple Frequencies,Wenner Method,Spurious Voltage Detection,Wide Resistance Range,High Resolution,Large Memory Capacity,Built-in Printer,Remote Control,Rechargeable Battery,Portable and Robus,Auto-ranging Function,USB Interface,IEC Safety and EMC Compliance,In-built Resistivity Calculation,User-friendly Operation,Comprehensive Accessories,Wide Operating Temperature Range,Lightweight and Compact,Trusted Brand
Country/Region of Manufacture:United States
Unit Quantity:Unid
Protection Against Solids:Tools and Thick Wire,Most Wires and Screws,Dust Protected,Dust Tight
Display:Digital
Resistance Range:0 Ω to 20 kΩ

The EM4058 Smart Digital Earth Tester, or Telurómetro digital inteligente, is a microprocessor-controlled instrument designed to measure ground resistance and specific soil resistivity using the Wenner Method. Additionally, it can detect spurious voltages present in the ground. This versatile instrument is suitable for measuring grounding systems in substations, industries, power distribution networks, etc., following IEC 61557-5 standards. It is also useful for measuring specific soil resistivity to optimize grounding system projects. The EM4058 allows the operator to choose from five frequencies (270 Hz, 570 Hz, 870 Hz, 1170 Hz, or 1470 Hz) to generate the test current, optimizing the grounding test. The different frequencies serve different purposes, such as analyzing the system for possible faults caused by industrial frequency currents or showing the influence of atmospheric discharge currents in grounding systems. The instrument’s operation at frequencies of 570 Hz, 870 Hz, 1170 Hz, or 1470 Hz provides high immunity to parasitic currents present in the soil, enabling more precise measurements even in unfavorable conditions. With the SCAN function, the EM4058 performs a measurement sweep of ground resistance using all five frequencies and displays the simple average obtained, as well as the results for each frequency. The EM4058 has four ranges automatically selected for measurements from 0.01 Ω to 20 kΩ, ensuring precision in measurements for various soil types. When measuring specific soil resistivity, the operator can input the distances between electrodes into the device to directly display the resistivity value on the screen. Specifications: Operating Frequencies: 270 Hz (resistance or resistivity measurement), 570 Hz, 870 Hz, 1170 Hz, or 1470 Hz (resistance measurement) with a maximum error of ±1 Hz in both cases.Voltmeter Function: Allows the instrument to operate as a conventional AC voltmeter, enabling the measurement of spurious voltages caused by parasitic currents.Measurement Ranges: Resistance: 0-20 Ω; 0-200 Ω; 0-2000 Ω; and 0-20 kΩ (auto-range). Resistivity: 0-50 kΩm (auto-range).Measurement Accuracy: Resistance and Resistivity – R ≤ 2 kΩ: ±(2% of the measured value ± 2 digits); R > 2 kΩ: ±(5% of the measured value ± 2 digits). Voltage: ±(3% of the measured value ± 2 digits).Reading Resolution: 0.01 Ω for resistance, 0.01 Ωm for resistivity, and 0.1 V~ for voltage measurement.Maximum Open Circuit Voltage: 50 VImmunity to Spurious Voltage Interference: In the R measurement, it allows for the presence of spurious voltages caused by parasitic currents with an error of less than 10% for voltages lower than 7 V~ for 0 < R < 20 kΩ.Earth Resistances of Auxiliary Electrodes: In the R measurement, it allows RAUX = 100R up to RAUX ≤ 50 kΩ with an error of < 30%.Advanced Functions: Automatically detects abnormalities that hinder measurements with acceptable errors (e.g., high interference noise, very high auxiliary electrode resistances).Calculation of Soil Resistivity: During the Resistivity measurement, the operator can input the distance between auxiliary electrodes to display the resistivity value directly in [Ωm].Data Output: USBBuilt-in Printer: Allows printing of results for documentation.Power Supply: Internal rechargeable LFP battery (LiFePO4 12 V - 3000 mAh)Battery Charger: 12 V - 2.0 A power supplySafety: Compliant with IEC 61010-1Electromagnetic Compatibility (E.M.C.): Compliant with IEC 61326-1Electrostatic Immunity: Compliant with IEC 61000-4-2Electromagnetic Radiation Immunity: Compliant with IEC 61000-4-3Environmental Protection Class: IP54 with the enclosure closedOperating Temperature: -10°C to 50°CStorage Temperature: -25°C to 65°CRelative Ambient Humidity: 95% RH (non-condensing)Weight: Approximately 3 kg (6.61 lbs)Dimensions: Approximately 274 x 250 x 124 mm (10.79 x 9.84 x 4.88 inches)Included Accessories: 4 Copper-coated steel electrodes (Jabalinas de acero cobreado)1 Power supply (Fuente de alimentación)1 Reel with 40 m cable (Carrete con cable de 40 m)2 Reels with 20 m cable (Carrete con cable de 20 m)1 Short 5 m cable (Cable corto de 5 m)1 Short 5 m cable for connection to the unknown electrode (Cable corto de 5 m para conexión al electrodo incógnita)1 Connection cable to power the charger with an external battery (Cable de conexión para alimentar el cargador con batería externa)1 Hammer (Martillo)1 User manual (Manual de uso)2 Transport bags (Bolsa para transporte)

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