Function | Two three four-wire measure grounding resistance, soil resistivity; Ground voltage, AC voltage measurement |
Range | Grounding resistance: 0.00Ω～30.00kΩ |
Soil resistivity: 0.00Ωm～9999kΩm |
Grounding voltage: 0.00V～100.0V |
measurement mode | Precise four-wire、 three-wire measurement, simple two-wire measurement |
Measurement methods | Grounding resistance: rated current change pole method Soil resistivity: four-pole method Ground Voltage: Average Rectification(between S-ES interface) |
Test frequency | 128Hz |
Short circuit test current | > 20mA (Sine Wave) |
Open circuit test voltage | AC 28V max |
Electrode spacing range | Can be set 1m ～ 100m |
Change gear | fully automatic shifting 0.00Ω ～ 30.00kΩ |
fully automatic shifting 0.00 Ωm～9000kΩm |
Backlight | Controllable gray screen backlight, suitable for use in dim places |
Display mode | 4-bit large LCD display, gray screen backlight |
Measurement instructions | LED flashing indicator during measurement |
LCD size | 111mm×68mm |
LCD display field | 108mm×65mm |
Instrument size | L/W/H：277.2mm×227.5mm×153mm |
Standard test line length | 4 strips：red 15m，black 15m, yellow 10m，green 10m each one |
Simple test line | 2strips：yellow 1.6m，green 1.6m each one |
Auxiliary Grounding rod | 4PCS：φ10mm×200mm |
Measure time | Ground voltage：about 3 times/sec; |
grounding resistance、soil resistivity: about 7 seconds/time |
Line voltage | Measurement below AC100V (ground voltage measurement function cannot be used to measure commercial power) |
USB interface | With USB interface, software monitoring, storage data can be uploaded to the computer, save and print |
Communication Line | One USB communication line, 1.5m long |
Data storage | 500 groups, "MEM" storage indicates, flashing "FULL" symbol indicates that the memory is full |
Data review | Data review function: "MR" symbol display |
Overflow display | Over-range overflow function: "OL" symbol display |
Interference test | Automatic identification of interference signals, "NOISE" symbol indication when the interference voltage is higher than 5V |
Auxiliary grounding test | With auxiliary ground resistance test function, 0.00KΩ ~ 30kΩ (Rh max = 3kΩ +100R <50kΩ; Rs max = 3kΩ +100R <50kΩ) |
Alarm function | Alarm when the measured value exceeds the alarm setting value |
Battery voltage | Real-time display of battery power, reminding timely charging when battery voltage is low |
Automatic Shutdown | “APO” Indicates, automatic Shutdown After 15 Minutes |
Power consumption | Standby: 40mA Max(Backlight off) |
Turn on backlight: about 43mA |
measuring：75mA Max(Backlight off) |
Weight | Instrument： 2450(including battery) |
Test lines：1300g |
Auxiliary grounding rod： 850g(4PCS) |
Working temperature and humidity | -10℃～40℃；below 80%rh |
Storage temperature and humidity | -20℃～60℃；below 70%rh |
Overload protection | Grounding resistance：AC 280V/3 seconds between H-E and S-ES ports |
Insulation resistance | More than20MΩ(500V between circuit and housing) |
Pressure resistance | AC 3700V/rms(between circuit and housing) |
Electromagnetic properties | IEC61326(EMC) |
Suitable for safety regulations | IEC61010-1(CAT Ⅲ 300V、CAT IV 150V、pollution level 2)； IEC61010-031； IEC61557-1(grounding resistance)； IEC61557-5(soil resistivity)； JJG 366-2004. |
