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Ambient temperature and humidity: 23℃±5℃,below 75%rh
Power Supply: DC 9V 6-section LR14 Dry Battery Standby for more than 100 hours
Interference voltage:<20V(should be avoided)
Interference current: <2A (should be avoided)
Measure R electrode spacing: a>5d
Measured electrode spacing: a>20h
Auxiliary Earth Resistance: Reference Conditions <100Ω, Operating Conditions <5kΩ
Range: Grounding resistance: 0.00Ω to 30.00kΩ
Soil resistivity: 0.00Ωm~9999kΩm
Ground voltage: 0.00V to 600.0V
Measurement Method: Precision 4-wire, 3-wire measurement, simple 2-wire grounding resistance
Measuring Methods
Grounding resistance: rated current change method
Soil resistivity: four-pole method
Ground voltage: average rectification (S-ES interface)
Test Frequency: 128Hz
Short-circuit Test Current: AC >20mA (sine wave)
Open Circuit Test Voltage: AC 28V max
Electrode Spacing Range: can be set from 1m to 100m
Change Gear:
Grounding resistance: fully automatic shifting from 0.00Ω to 30.00kΩ
Soil resistivity: 0.00 Ωm~9000kΩm automatic shifting
Backlight
Gray screen backlight, suitable for dim places
Display Mode: 4-digital super-large LCD display, blue screen backlight
Measuring Indicator: During measurement, LED flash
LCD Frame Dimension: 111mm×65mm
LCD display area: 108mm×65mm
Dimension
L×W×H: 240mm×188mm×85mm
Standard Test Wire: 4 wires: each for red 20m, black 20m, yellow 10m, and green 10m
Simple Test Wire: 2 wires: each for yellow 1.5m and green 1.5m
Auxiliary Earthing Rod: 4 PCS
Measuring Rate
Voltage to ground: about 3 times/second
Earth resistance, soil resistivity: about 7 seconds/time
Circuit Voltage: below AC 600V(The ground voltage measurement function cannot be used to measure commercial power)
Data Storage: 500 sets, “MEM” icon storage indicator, flash display “FULL” icon to indicate storage is full
Data Read: Data read function: “MR” icon display
Overflow Display: Exceeding measuring range overflow function: “OL” icon display
Alarm Function: Alarm when the measured value exceeds the alarm setting value
Battery Voltage: Low battery voltage symbol display
Automatic Shut-down: “APO” instruction, automatically shut down after 15 minutes of power on
Power Consumption
Standby: About 40mA (backlight off)
Turn on and backlight on: about 43mA
Measurement: about 75mA (backlight off)
Weight
Tester:1230g (including battery)
Testing Wires:1300g
Auxiliary earthing rod:720g(4 PCS)
Working Temperature & Humidity: -10℃~40℃;below 80%rh
Storage temperature & humidity: -20℃~60℃;below 70%rh
Overload Protection: Measuring earth ground resistance: between each interfaces of H-E、S-ES, AC 280V/3 seconds
Insulation Resistance: Over 20MΩ(between circuit and enclosure it is 500V)
Withstanding Voltage: AC 3700V/rms (Between circuit and enclosure)
Electromagnetic Features: IEC61326(EMC)
Protection Type
IEC61010-1 (CAT III 300V, CAT IV 150V, Pollution Degree 2);
IEC61010-031;
IEC61557-1 (grounding resistance);
IEC61557-5 (soil resistivity);
JJG 366-2004

