ຮັບສ່ວນຫຼຸດພິເສດຕາມປະລິມານ, ອັບເດດລາຄາຂາຍສົ່ງ ແລະ ການແຈ້ງເຕືອນສິນຄ້າໃໝ່ສົ່ງກົງເຖິງອິນບັອກຂອງທ່ານ.
ໂດຍການສະໝັກສະມາຊິກ, ທ່ານຍອມຮັບ ເງື່ອນໄຂການໃຫ້ບໍລິການ ແລະ ນະໂຍບາຍຄວາມເປັນສ່ວນຕົວ ຂອງພວກເຮົາ.
ເຂົ້າເຖິງຜູ້ຊ່ຽວຊານທີ່ໄດ້ຮັບການຢັ້ງຢືນຂອງພວກເຮົາໂດຍກົງ
Function: Ground resistance, Soil resistivity, DC resistance, Ground voltage, AC current
Ambient temperature and humidity: 23℃±5℃，below 75%rh
Interference voltage: <20V (should be avoided)
Interference current: <2A (should be avoided)
Measure R electrode spacing: a＞5d
Measured ρ electrode spacing: a＞20h
Power: DC 6V 4.5Ah lead-acid battery lasts more than 100 hours standby
Backlight: Controllable backlight, suitable for use in dim places
Measurementmode: Precise four-wire, three-wire measurement, simple two-wire measurement, Selection method, double clamp method for measuringgrounding resistance
Measurement methods:
2.3.4-wire method measurement: Polarization method, measuringcurrent 20mA Max
Soil resistivity: four-pole method
Selectivity Measurement: Polarization Method, Measuring Current 20mA Max
Double clamp method: non-contact mutual inductance measurement method, test current 1mA Max
DC resistance: polarization method
AC current: average rectification (clamp)
Ground Voltage: Average Rectification (between S-ES interface)
Test voltage waveform: Sine wave
Test frequency: 128Hz
Short circuit test current: AC 20mA max
Open circuit test voltage: AC 28V max
Electrode spacing range: 1m～100m
Display mode: 4-bit large LCD display, with 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
Clamp size: L/T/H：101mm×27mm×214mm
Test line: 4 strips：red 15m，black 15m, yellow 10m，green 10meach one
Simple test line 2 strips：yellow 1.5m，green 1.5m each one
Auxiliary Grounding rod: 4 PCS：φ10mm×200mm
Current clamp: 2 PCS：Banana plug
Current clamp:
Diameter: φ50mm
Current clamp lead: Length 2m
Measure time:
AC current：about 2 times/sec;
Ground voltage：about 2 times/sec;
Grounding resistance、soil resistivity: about 7 seconds/time
Line voltage:
Measurement below AC100V (ground voltage measurement functioncannot be used to measure commercial power)
USB interface: With USB interface, 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
Current clamp low current indication:
When measuring by the selection method or the double-clampmethod, when the current signal received by the current clampAislower than 0.5 mA, the symbol “ ” is displayed, and at this time, the clamping direction of the current clamp A should be checked.
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(Rhmax = 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 whenbattery voltage is low
Automatic Shutdown: “APO” Indicates, automatic Shutdown After 15 Minutes
Power consumption:
Standby: 40mA Max(Backlight off)
Turn on backlight: 43mA Max
Measuring：120mA Max(Backlight off)
Weight:
Instrument： 2430g(including battery)
Current clamp：940g(2 PCS)
Test lines：1300g(including simple test line)
Auxiliary grounding rod： 850g(4 PCS)
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-ESports
Insulation resistance: More than 20MΩ (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. JJG 366-2004(ground resistance meter)；
JJG 1054-2009(Clamp grounding resistance meter).
