Đồng hồ đo điện trở đất BK Precision 309 (hiển thị số)
Đặc tính kỹ thuật máy đo điện trở đất:
- Hãng sản xuất: BK Precision - USA
- Model: 309
- Giải đo điện trở đất: (20/200/2000Ω ranges)
- Giải đo điện áp đất 200VAC (40 to 500Hz)
- chức năng test: có
- Data Hold: có
- Auto Power Off: có
- Cung cấp kèm theo: dây đo, cọc tiếp địa, pin , túi đựng
The model 309 Digital Earth Resistance Meter (Earth Ground Meter) is a small, compact, battery powered, professional meter. This easy-to-use meter is invaluable to electricians and contractors who need to ensure the "ground" quality and effectiveness of buildings, structures, equipment or electrical systems. A good earth ground is required for new buildings or structures needing to pass required electrical codes. Older buildings can lose a good, effective earth ground connection over time. This can happen after a building or structure has been struck by lightning.
- Measure Earth Resistance (20/200/2000 ohm ranges)
- Measures Earth AC Voltage to 200VAC (40 to 500Hz)
- Timed function test turns output off after a 3 to 5 min continuous test
- 2mA Measuring current measures resistance without tripping circuit breakers
- Data Hold
- Small Light Weight
- Auto Power Off
- IEC 1010 CAT III 200V / CE
- Included: Test Leads, Auxiliary Earth Spikes, Carrying Case and Batteries
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