0‑30kΩ Grounding Resistance Tester with LCD Display 0‑9000kΩm Digital Soil Resistivity Meter Condition: Item Type: Earth Resistance Tester Material: ABS Basic Conditions and Working Conditions Influence Basic Conditions Working Environment Note Ambient Temperature 23℃±1℃ -10℃-40℃   Environment Humidity 40%-60% ＜80%   Operating Voltage 9V±0.1V 9V±1.5V rC, rP Auxiliary Ground Resistance ＜100Ω ＜30kΩ   Interference Voltage No ＜20V   Interference Current No ＜2A   Electrode Distance When Measuring R A>5d A>5d   Electrode Distance When Measuring Ρ A>20h A> 20 H   Features Measure 2/3/4 Pole Grounding Resistance, Soil Resistivity, Grounding Voltage, AC Voltage Power Supply DC 9V (Zi-Mn dry battery R14S 1.5V 6 PCS, 300 hours of continuous standby) (Battery Not Included)     Measuring Range Grounding Resistance: 0.00Ω-30.00kΩ Soil Resistivity: 0.00Ωm-9000kΩm Measurement Method Accurate 4-Pole Measurement, 3-Pole Measurement, Simple 2-Pole Measurement Measurement Methods Grounding Resistance: Rated Current Pole Changing Method, Measuring Current Maximum 20mA Soil Resistivity: 4-Pole Measurement (Winner Method) Ground Voltage: Average Rectification (Between P(S)-ES) Measuring Frequency 128Hz / 111Hz / 105Hz / 94Hz (AFC) Short Circuit Test Current AC Maximum 20mA Open Circuit Test Current AC 40V or Less Test Voltage Waves Sine Waves Electrode Distance Range Can be set from 1m-100m Transfer Grounding Resistance: 0.00Ω-30.00kΩ, automatic shift Soil Resistivity: 0.00Ωm-9000kΩm, Automatic Shift Backlight Blue screen backlight, suitable for dim places Display Mode 4-digit large lcd display with blue screen backlight Measurement Standard During the measurement, LED flashes indicator, LCD countdown display, progress bar indicator LCD Frame Size Approx. 128x75mm / 5.0x3.0in LCD Window Size Approx. 124x67mm / 4.9x2.6in Size Approx. 215x170x75mm / 8.5x6.7x3.0in Standard Test Line 4 Lines: each red 20m, black 20m, yellow 10m and green 10m Simple Test Line 2 Lines: red 1.6m and black 1.6m Auxiliary Earth Rod 4 Rods: Φ10x150mm / 0.4x5.9in Measurement Rate Ground voltage: about 3 times/sec Grounding Resistance, Soil Resistivity: About 5 Seconds/Time Measure Time More than 5000 times (short circuit test, the interval time should be at least 30 seconds) Line Voltage Below AC 600V RS232 Interface With RS232 interface, software monitoring, stored data can be uploaded to the computer, saved or printed. Communication Line One RS232 communication line, length 1.5m Data Storage 300 sets, "MEM" icon storage indicator, flashing "FULL" icon indicates that the storage is full Data Retention Data retention function: "Hold" icon display Data Access Data reading function: "READ" icon display Overflow Display Over-range overflow function: "OL" icon display Interference Test Automatically identify interference signals, and display "NOISE" icon when the interference voltage exceeds 5V Auxiliary Ground Test Can measure auxiliary grounding resistance, 0.00KΩ-30kΩ (100R + rC <50kΩ, 100R + rP <50kΩ) Alarm Function When the measured value exceeds the alarm setting value, there will be a "Toot-toot-toot" alarm prompt Battery Voltage When the battery voltage drops to about 7.5V, a low battery voltage icon will be displayed to remind you to replace the battery. Energy Consumption Standby: about 20mA (backlight off) Power on with Backlight: About 45mA (25mA without backlight) Measurement: About 100mA (backlight off) Working Temperature and Humidity -10℃-40℃, lower than 80% rh Storage Temperature and Humidity  -20℃-60℃, less than 70% rh Overload Protection Measure grounding resistance: between each interface of C(H)-E, P(S)-ES, AC 280V / 3 seconds Insulation Resistance More than 20MΩ (500V between circuit and case) Withstand Voltage AC 3700V/rms (between the circuit and the case) Electromagnetic Properties IEC61326 (EMC) Protection Type IEC61010-1 (CAT III 300V, CAT IV 150V, Pollution 2), IEC61010-031, IEC61557-1 (ground resistance), IEC61557-5 (soil resistivity), JJG 366-2004 Category Measuring range Inherent Error Resolution Ground Resistance (R) 0.00Ω-30.00Ω ±2% rdg±3dgt 0.01Ω     30.0Ω-300.0Ω ±2% Rdg±3dgt 0.1Ω     300Ω-3000Ω ±2% Rdg±3dgt 1Ω     3.00kΩ-30.00kΩ ±4% Rdg±3dgt 10Ω     Soil Resistivity (ρ) 0.00Ωm-99.99Ωm According to Accuracy of R (ρ=2πaRa: 1 m-100m, π= 3.14) 0.01Ωm 100.0Ωm-999.9Ωm 0.1Ωm 1000Ωm-9999Ωm 1Ωm 10.00kΩm-99.99kΩm 10Ωm 100.0kΩm-999.9kΩm 100Ωm 1000kΩm-9000kΩm 1kΩm Ground Voltage AC 0.0-600V ±2%rdg±3dgt 0.1V