ຮັບສ່ວນຫຼຸດພິເສດຕາມປະລິມານ, ອັບເດດລາຄາຂາຍສົ່ງ ແລະ ການແຈ້ງເຕືອນສິນຄ້າໃໝ່ສົ່ງກົງເຖິງອິນບັອກຂອງທ່ານ.
ໂດຍການສະໝັກສະມາຊິກ, ທ່ານຍອມຮັບ ເງື່ອນໄຂການໃຫ້ບໍລິການ ແລະ ນະໂຍບາຍຄວາມເປັນສ່ວນຕົວ ຂອງພວກເຮົາ.
ເຂົ້າເຖິງຜູ້ຊ່ຽວຊານທີ່ໄດ້ຮັບການຢັ້ງຢືນຂອງພວກເຮົາໂດຍກົງ
Function: Ground resistance, ground voltage, low value resistance measurement
Power supply: DC 14.8V 2600mAh rechargeable lithium battery , the battery is fully Charged at about 16.8V
Backlight: Controllable white screen backlight, suitable for use in dark places
Measurement methods: Precise three-wire method and simple two-wire method to measure grounding resistance
Measurement methods:
Earth resistance measurement: Rated current changing pole method
Voltage to ground: average value rectification (between PE interfaces)
Range:
Ground resistance: 0.000Ω～200KΩ
Ground voltage: AC 0.000V～600V (50Hz/60Hz)
Resolution: 0.001Ω ; 0.005V
Precision
Ground resistance: ±2%rdg±5dgt
Note:
Auxiliary connection Rc: 500Ω~1000Ω error≤±5dgt
Auxiliary connection Rp: 500Ω~10KΩ error≤±3dgt
When the interference voltage is 5V, the additional error is ≤±5%rdg± 5dgt
Ground voltage: ±2%rdg±3dgt (50Hz/60Hz)
Test voltage waveform: Sine wave
Test frequency:700Hz
Test current:
0.000Ω~100.0Ω range: about 20mA constant current
100Ω~200.0KΩ range: about 0.1mA constant current
Open circuit test voltage: AC 40Vmax
Product Size:
Meter size: length, width and height 258mm×215mm×83mm
Package size: 270mm*160mm*250mm
Test line: 3 pieces: red 15m, yellow 10m, green 5m each
Simple test line: 2 pieces: 1 piece of red 1.6m and 1 piece of green 1.6m
Auxiliary ground rod: 2 pieces: φ 10mm×200mm
Measure time: Ground voltage: about 2 times/second; ground resistance: about 5 seconds/time
Measurement times: More than 5000 times (short circuit test, test once, stop for 30 seconds and test again)
Line voltage: Measured below AC 600V
