ຮັບສ່ວນຫຼຸດພິເສດຕາມປະລິມານ, ອັບເດດລາຄາຂາຍສົ່ງ ແລະ ການແຈ້ງເຕືອນສິນຄ້າໃໝ່ສົ່ງກົງເຖິງອິນບັອກຂອງທ່ານ.
ໂດຍການສະໝັກສະມາຊິກ, ທ່ານຍອມຮັບ ເງື່ອນໄຂການໃຫ້ບໍລິການ ແລະ ນະໂຍບາຍຄວາມເປັນສ່ວນຕົວ ຂອງພວກເຮົາ.
ເຂົ້າເຖິງຜູ້ຊ່ຽວຊານທີ່ໄດ້ຮັບການຢັ້ງຢືນຂອງພວກເຮົາໂດຍກົງ
Measurement Range & Accuracy
Measuring Range/Accuracy/Resolution
Earth Resistance
0.10Ω~20Ω/±2%rdg±3dgt (Auxiliary earth resistance 100Ω±5%,earth voltage <10V)/0.01Ω
0.1Ω~200Ω/ ±2%rdg±3dgt (Auxiliary earth resistance 100Ω±5%,earth voltage <10V) / 0.1Ω
1Ω~2000Ω/ ±2%rdg±3dgt (Auxiliary earth resistance 100Ω±5%,earth voltage <10V) / 1Ω
Earth Voltage
0~600V AC/±2%rdg±3dgt/1V
Technical Specification
Power Supply: DC 9V (alkaline dry battery LR6 1.5V 6 sections)
Display Mode: 4-digit max LCD display, white screen backlight
Measurement Instruction: The LED flash to indicate during the measurement, and the LCD count down to display
LCD Size: 128mm×75mm;LCD display area: 124mm×67mm
Backlight: Controllable white screen backlight, suitable for use in dim place
Measurement: Precision three-wire measurement, simple two-wire measurement
Measuring Method: Earth resistance: rated current pole-change method, measuring current 20mA Max;
Earth voltage: effective value acquisition
Test Frequency: 128Hz
Test Current: ＞20mA(Sine wave)
Data Mode: Average, maximum, minimum
Line Resistance Verification: Avoid error caused by the test line is not fully inserted into the tester interface or poor contact, or the user replace the extended test line, etc., so that the earth resistance measurement is more accurate
Test Line: 3 PCS: red 15m, yellow 10m, green 5m each 1 piece
Simple Test Line: Red 1.6m
Auxiliary Ground Rod: 2 PCS:φ9mm×230mm
Measurement Time
Earth voltage: about 3 times/second;
Earth resistance: about 15 seconds/time
Measurement Times: More than 5000 times (measure 10Ω in 20Ω gear, measure once, stop for 30 seconds and then test)
Line Voltage: Measurement of earth voltage: measurement below AC 600V
Memory: 400 groups, flashing "FULL”symbol indicates that the storage is full
Data Hold: Data holding function: “HOLD" symbol display
Data Access: Data access function: “READ" symbol display
Overflow Display: Over-range overflow function: “OL" symbol display
Alarm Function: When the measured value exceeds the alarm set value, the LCD flashes to display the alarm symbol “”
Alarm Threshold Setting Range: Resistance:0Ω~2000Ω,Voltage:0.0V~600.0V
Battery Voltage: When the battery voltage drop to about 7.8V, the low battery voltage symbol flashes to remind to replace the battery.
Working Current
Backlight: 25mA Max
Standby: 25mA Max(backlight off)
Measurement: 200mA Max(backlight off)
Tester Size: 215mm×178mm×83mm
Weight
Tester: about 1290g(include battery)
Total weight: about 3.05kg (include accessory)
Overload Protection: Measuring earth resistance: AC 280V/3 seconds between E-P and E-C ports
Insulation Resistance: Above 10MΩ(500V between the circuit and the housing)
Withstand Voltage: AC 3700V/rms (between circuit and housing)
Electromagnetic characteristics: IEC61010-4-3,wireless frequency electromagnetic field≤1V/m
Suitable Safety Standard: IEC61010-1,IEC1010-2-31,IEC61557-1,pollution level 2,CAT Ⅲ 300V
Working Temperature & Humidity: -10℃~40℃; below 80%RH
Storage Temperature & Humidity: -20℃~60℃; below 70%RH
