Function | Two three four-wire measure grounding resistance, soil resistivity; Ground voltage, AC voltage measurement |
Ambient temperature and humidity | 23¡æ¡À5¡æ£¬below 75%rh |
Power | 8.4V lithium battery (built-in) |
Interference voltage | <20V (should be avoided) |
Interference current | <2A (should be avoided) |
Measure R electrode spacing | a£¾5d |
Measured electrode spacing | a£¾20h |
Auxiliary ground resistance | Reference condition <100¦¸, working condition <5k¦¸ |
Range | Grounding resistance: 0.00¦¸¡«30.00k¦¸ |
Soil resistivity: 0.00¦¸m¡«9999k¦¸m |
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 0.00¦¸ ¡« 30.00k¦¸ |
fully automatic shifting 0.00¦¸m¡«9000k¦¸m |
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¡Á68mm |
LCD display field | 108mm¡Á65mm |
Instrument size | L/W/H£º277.2mm¡Á227.5mm¡Á153mm |
Standard test line length | 4 strips£ºred 15m£¬black 15m, yellow 10m£¬green 10m each one |
Simple test line | 2strips£ºyellow 1.6m£¬green 1.6m each one |
Auxiliary Grounding rod | 4PCS£º¦Õ10mm¡Á200mm |
Measure time | Ground voltage£ºabout 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, 0.00K¦¸ ~ 30k¦¸ (Rh max = 3k¦¸ +100R <50k¦¸; Rs max = 3k¦¸ +100R <50k¦¸) |
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£º75mA Max(Backlight off) |
Weight | Instrument£º 2450g(including battery) |
Test lines£º1300g |
Auxiliary grounding rod£º 850g(4PCS) |
Working temperature and humidity | -10¡æ¡«40¡æ£»below 80%rh |
Storage temperature and humidity | -20¡æ¡«60¡æ£»below 70%rh |
Overload protection | Grounding resistance£ºAC 280V/3 seconds between H-E and S-ES ports |
Insulation resistance | 20M¦¸ÒÔÉÏ(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 ¢ó 300V¡¢CAT IV 150V¡¢pollution level 2)£» IEC61010-031£» IEC61557-1(grounding resistance)£» IEC61557-5(soil resistivity)£» JJG 366-2004. |
