Ground resistance range | 0.01Ω～3000Ω Accuracy ±1.5%rdg±3dgt |
Ground Resistance Resolution | 0.01Ω |
Ground voltage range | 0～100V AC Accuracy ±1.5%rdg±3dgt |
Ground voltage resolution | 0.01V |
Baseline conditions | 23℃±5℃, below 75%rh (auxiliary grounding resistance 100Ω±5%, voltage to ground <10V) |
Features | Earth resistance measurement, ground voltage measurement, low value resistance measurement |
Power supply | DC 6V 4.5Ah lead-acid battery, continuous standby for more than 100 hours |
Backlight | Controllable gray and white screen backlight, suitable for use in dark places |
Measurement method | Precision three-wire measurement, simple two-wire measurement |
Measurement methods | Grounding resistance: rated current pole changing method, 128Hz; |
Test frequency | Voltage to ground: average value rectification |
Short circuit test current | 128Hz |
Wire resistance check | > 20mA (sine wave) |
Display mode | Avoid errors caused by the test wire not fully inserted into the instrument interface or poor contact or the user replacing the extended test wire, so that the grounding resistance measurement is more accurate. |
Measurement instructions | 4-digit large LCD display, gray and white screen backlight |
LCD size | LED flashing indication during measurement, LCD countdown display |
Meter size | 108mm×65mm |
Test lead length | Length, width and height: 277.2mm×227.5mm×153mm |
Simple test lead | 3 pieces: 15m for red, 10m for yellow, 1 piece for each of 5m green |
Auxiliary ground rod | 2: Yellow 1.6m, 1 green 1.6m each |
measure time | 2 pieces: φ10mm×200mm |
Number of measurements | Voltage to ground: about 3 times/second; grounding resistance: about 5 seconds/time |
Line voltage | More than 5000 times |
USB interface | Measuring voltage to ground: measurement below AC 100V |
Communication line | With USB interface, software monitoring, storage data can be uploaded to the computer, save and print |
Data storage | 1 USB communication cable, 1.5m long |
Data access | 500 groups, "MEM" storage indication, displaying "FULL" symbol means the storage is full |
Overflow display | Data access function: "MR" symbol display |
Alarm function | Overrange overflow function: "OL" symbol display |
Battery voltage | When the measured value exceeds the alarm setting value, an alarm prompt will be issued |
Automatic shut-down | Real-time display of battery power, reminding to charge in time when the battery voltage is low |
Power consumption | The meter shuts down after about 15 minutes of inactivity |
Standby: 40mA Max (backlight off) | |
Turn on the backlight: 43mA Max | |
Quality | Measurement: 120mA Max (backlight off) |
Meter: 2397g (including battery) | |
Test line: 850g (including simple test line) | |
Auxiliary ground rod: 425g (2 pieces) | |
Working temperature and humidity | Gauge bag: 271g |
Storage temperature and humidity | -10℃～40℃; below 80%rh |
Overload protection | -20℃～60℃; below 70%rh |
Insulation resistance | Grounding resistance: AC 280V/3 seconds between E-H and E-S ports |
Pressure resistance | 10MΩ or more (500V between circuit and case) |
Electromagnetic properties | AC 3700V/rms (between circuit and case) |
Suitable for safety regulations | IEC61010-4-3, radio frequency electromagnetic field≤1V/m IEC61010-1, IEC1010-2-31, IEC61557-1, 5, IEC60529 (IP54), pollution, etc. 2, CAT Ⅲ 300V |
