Huazheng HZDW-DB Ground Network Earth Resistance Tester (0～5000Ω)
Measuring range: 0～5000Ω (including current pile impedance)
Resolution: 0.001mΩ
Measurement error: ±(reading×2%+0.005Ω)
Anti-power frequency 50Hz voltage interference capability: 10V
Test current waveform: sine wave
Test current frequency:
Single frequency: 40-70Hz, resolution 0.1Hz, free setting
Dual frequency: 50±0.1Hz to 50±10.0Hz can be set at will 60±0.1Hz to 60±10.0Hz can be set freely
Output current: 5A or external power supply 30A
Output voltage: 400V or external power supply 1000V
Measuring line requirements:
Current line copper core cross-sectional area ≥1.5mm2
Voltage line copper core cross-sectional area ≥1.0mm2
Test power supply: Built-in 2kW variable frequency power supply or external high-power variable frequency power supply.
Power supply: AC220V±10%, 50Hz
Dimensions: 500mm*377mm*330mm, instrument weight: 20kg
ຮັບສ່ວນຫຼຸດພິເສດຕາມປະລິມານ, ອັບເດດລາຄາຂາຍສົ່ງ ແລະ ການແຈ້ງເຕືອນສິນຄ້າໃໝ່ສົ່ງກົງເຖິງອິນບັອກຂອງທ່ານ.
ໂດຍການສະໝັກສະມາຊິກ, ທ່ານຍອມຮັບ ເງື່ອນໄຂການໃຫ້ບໍລິການ ແລະ ນະໂຍບາຍຄວາມເປັນສ່ວນຕົວ ຂອງພວກເຮົາ.
ເຂົ້າເຖິງຜູ້ຊ່ຽວຊານທີ່ໄດ້ຮັບການຢັ້ງຢືນຂອງພວກເຮົາໂດຍກົງ