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Function
|
Two, three, four-wire
measure grounding resistance, soil resistivity; Ground voltage, AC voltage
|
|
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 current
|
<2A (should be
avoided)
|
|
Measure R electrode
spacing
|
a>5d
|
|
Measured electrode
spacing
|
a>20h
|
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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
|
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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)
|
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Test Frequency
|
128Hz
|
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Short-circuit Test
Current
|
AC >20mA (sine wave)
|
|
Open Circuit Test
Voltage
|
AC 28V max
|
|
Electrode SpacingRange
|
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
|
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LCD display area
|
108mm×65mm
|
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Dimension
|
L×W×H: 240mm×188mm×85mm
|
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Standard Test Wire
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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
|
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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
|
|
Data Storage
|
500 sets, “MEM” icon storage indicator, flash display
“FULL” icon to indicate
storage is full
|
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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
|
|
Power Consumption
|
Standby: About 40mA (backlight off)
|
|
Turn on and backlight on:
about 43mA
|
|
Measurement: about 75mA (backlight off)
|
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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
|
