HIOKI 3490 Đồng hồ đo điện trở cách điện, Mê gôm mét Hioki 3490 (1000V, 4000MΩ)

General Specifications
Power source : Rated power voltage: 1.5 VDC × 4, LR6 alkaline battery × 4
Continuous operating time : Approx. 20 hours (at 500V range, no load)
Maximum rated voltage to earth : 600 VAC, Measurement Category ?, Anticipated Transient Overvoltage: 6000V
Dielectric strength : 5312 VAC, 50/60Hz, Measurement terminals - electrical enclosure, current sensitivity 1 mA
Standards : Safety EN61010, EMC EN61326, EN61557-1/-2/-4
Drop Proof : On concrete: 1m/1 time
Dimensions (excluding protrusions) : Approx. 159W × 177H × 53D mm (6.26"W × 6.97"H × 2.09"D)
Accessories     9787 Test Lead, Instruction manual, Shoulder strap, LR6 alkaline battery × 4

Insulation Resistance Measurement
Rated output voltage : 250 V DC ; 500 V DC ;1000 V DC
1st effective measuring range : 0.05 to 50 MO ; 2 to 1000 MO; ±5% of indicated value
2nd effective measuring range : 0.01 to 0.05 MO; 50 to 100 MO     0.5 to 2 MO; 1000 to 4000 MO; ±10% of indicated value
Overload protection : 1200V AC (10 sec.)

Resistance Measurement
Ranges :     3O ; 30O
Accuracy     ±0.09O;  ±0.9O
Open-circuit voltage : 4.1 to 6.9 V
Measuring current : 200mA DC or more ; 20mA DC or more
Overload protection:  720V AC (10 sec., by Fuse)

AC voltage Measurement
Measuring range : 0 to 600 V (50/60 Hz)
Accuracy: ±5% of maximum scale value
Input resistance : 100 kO or more (50/60Hz)
Overload protection :    1200V AC (10 sec.)