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Measurement Range & Accuracy
Measuring Range/Accuracy/Resolution
Earth Resistance
0.10Ω~20Ω/±2%rdg±3dgt (Auxiliary earth resistance 100Ω±5%,earth voltage <10V)/0.01Ω
0.1Ω~200Ω/ ±2%rdg±3dgt (Auxiliary earth resistance 100Ω±5%,earth voltage <10V) / 0.1Ω
1Ω~2000Ω/ ±2%rdg±3dgt (Auxiliary earth resistance 100Ω±5%,earth voltage <10V) / 1Ω
Earth Voltage
0~600V AC/±2%rdg±3dgt/1V
General Specification
Power Supply: DC 7.4V 2600mAh rechargeable lithium battery, the battery is fully charged about DC 8.4V
Display Mode: 4-digit max LCD display, white screen backlight
Measurement Instruction: The LED flash to indicate during the measurement, and the LCD count down to display
LCD Size: 128mm×75mm;LCD display area:124mm×67mm
Backlight: Controllable white screen backlight, suitable for use in dim place
Measurement: Precision three-wire measurement, simple two-wire measurement
Measuring Method
Earth resistance: rated current pole-change method, measuring current 20mA Max;
Earth voltage: effective value acquisition
Test Frequency: 128Hz/111Hz/105Hz/94Hz(AFC)
Test Current: ＞20mA(Sine wave)
Data Mode: Average, maximum, minimum
Line Resistance Verification: Avoid errors caused by the test line not being fully inserted into the tester interface or poor contact, as well as the errors caused by the user replacing or lengthening the test line,which makes the measurement of earth resistance more accurate.
Test Line: 3 PCS: red 15m, yellow 10m, green 5m each 1 piece
Simple Test Line: 2 PCS: red 1.6m, black 1.6m each 1 piece
Auxiliary Earth Rod: 2 PCS: φ9mm×230mm
Measurement Time:Earth Voltage:approximately 3 times/second; earth resistance: approximately 15 seconds/time
Measurement Times: More than 5000 times (measure 10Ω in 20Ω gear, measure once, stop for 30 seconds and then test)
Line Voltage: Measurement of earth voltage: measurement below AC 600V
Communication Interface: With USB interface, software monitoring, storage data can be uploaded to the computer, saved and printed
Memory: 400 groups, flashing "FULL”symbol indicates that the storage is full
Data Hold: Data holding function: “HOLD" symbol display
Data Access: Data access function: “READ" symbol display
Overflow Display: Over-range overflow function: “OL" symbol display
Alarm Function: When the measured value exceeds the alarm set value,“Du-Du-Du-" Alarm prompt
Alarm Threshold Setting Range: Resistance: 0Ω~2000Ω,Voltage: 0.0V~600.0V
Automatic Shutdown: without any operation of 10 minutes, and then automatic shutdown
Battery Voltage: When the battery voltage drop to DC 7.2V±0.1V, the low battery voltage symbol is displayed to remind the battery need to be charged.
Working Current
Backlight: 25mA Max
Standby: 25mA Max(backlight off)
Measurement: 200mA Max(backlight off)
Tester Size: 280mm×260mm×160mm
Weight: Tester: about 4730g(include battery); Total weight: about 5kg (include accessory)
Protection Level: IP65(closing)
Overload Protection: Measuring earth resistance: AC 280V/3 seconds between E-P and E-C ports
Insulation Resistance: Above 10MΩ(500V between the circuit and the housing)
Withstand Voltage: AC 3700V/rms (between circuit and housing)
Electromagnetic characteristics: IEC61010-4-3,wireless frequency electromagnetic field≤1V/m
Suitable Safety Standard: IEC61010-1,IEC1010-2-31,IEC61557-1,pollution level 2,CAT Ⅲ 300V
Working Temperature & Humidity: -10℃~40℃; below 80%RH
Storage Temperature & Humidity: -20℃~60℃; below 70%RH
