ຮັບສ່ວນຫຼຸດພິເສດຕາມປະລິມານ, ອັບເດດລາຄາຂາຍສົ່ງ ແລະ ການແຈ້ງເຕືອນສິນຄ້າໃໝ່ສົ່ງກົງເຖິງອິນບັອກຂອງທ່ານ.
ໂດຍການສະໝັກສະມາຊິກ, ທ່ານຍອມຮັບ ເງື່ອນໄຂການໃຫ້ບໍລິການ ແລະ ນະໂຍບາຍຄວາມເປັນສ່ວນຕົວ ຂອງພວກເຮົາ.
ເຂົ້າເຖິງຜູ້ຊ່ຽວຊານທີ່ໄດ້ຮັບການຢັ້ງຢືນຂອງພວກເຮົາໂດຍກົງ
Functions: Earth resistance measurement, earth voltage measurement, Low resistance measurement
Power supply: DC 9V (Zn-Mn dry battery R14S 1.5V 6 pieces,Continuous 300 hrs )
Methods of Measurement: Earth resistance :Rated current pole changing method; test current : 3mA Max, 820Hz; Earth voltage : Average rectifier
Dispaly model: 4 digital LCD display,Blue-screen backlight
Indicator light: LED indicator flash during test,LCD count down display
LCD dimension: 124mm×67mm
Dimension: 1. Instrument -- 215mm×190mm×95mm,1443g( included battery)
2. Test leads -- 1.6m*2pieces , 20m*1 piece , 10m*1 piece , 5m* 1 piece, 847g
3. Ground rop-- φ10mm×150mm*2pieces , φ10mm×150mm ,468g
4. Carrying bag: 915g
Earth Resistance: Test Range: 0.01Ω~20Ω( resolution--0.01Ω) ,0.1Ω~200Ω (resolution --0.1Ω),1Ω~2000Ω(resolution --1Ω) ; accuracy :±1%reading±3dgt
Earth Voltage: AC 0~600V ; accuracy :±1%reading±3dgt
Test time: Earth voltage:about 3 times/second ; earth resistance:about 5 second/time
Measure times: Above 5000 times
Line voltage: Earth voltage:measure below AC 600V
RS232 connector: RS232 connector,Software monitoring,stored data can be uploaded to PC , storage and printed.
Communication cable: RS232 ,1.5m * 1 piece
Working condition: -10℃~40℃;below 80%rh
Storage condition: -20℃~60℃;below 70%rh
Over-load protection: Measurement of earth resistance:E-P,E-C ; AC 280V/ 3 secs
Insulation resistance: Above 10MΩ(between circuit and the shell , 500V)
Withstand voltage: AC 3700V/rms(between circuit and the shell)
Electromagnetic property: IEC61010-4-3,electromagnetic field≤1V/m
Standards: IEC61010-1 , IEC1010-2-31 , IEC61557-1,5, IEC60529(IP54)
