Ground resistance range | 0.01Ω～3000Ω Accuracy ±1.5%rdg±3dgt |
Ground Resistance Resolution | 0.01Ω |
Ground voltage range | 0～600V 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 | 1.5V (LR14) alkaline batteries 6 |
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 current | Voltage to ground: average value rectification |
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 | 240mm (L)×188mm (W)×85mm (H) |
Simple test lead | 3 pieces: 15m for red, 10m for yellow, 1 piece for each of 5m green |
Auxiliary ground rod | 2: Yellow 1.5m, 1 green 1.5m each |
measure time | 2 roots |
line voltage | Voltage to ground: about 3 times/second; grounding resistance: about 5 seconds/time |
data storage | Measuring voltage to ground: measurement below AC 600V |
Data access | 500 groups, flashing "FULL" symbol indicates that 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 | The battery voltage is insufficient, and the low battery symbol " " is displayed |
Power consumption | The meter shuts down after about 15 minutes of inactivity |
Standby: 40mA Max (backlight off) |
Turn on the backlight: 43mA Max |
Weight | Measurement: 120mA Max (backlight off) |
Meter: 1230g (including battery) |
Test line: 610g (including simple test line) |
Auxiliary ground rod: 360g (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 |
