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เครื่องวัดกราวด์ดิน เครื่องวัดความต้านทานสายดิน UNI-T UT522 Digital Earth Ground Resistance Tester AC Earth Insulation Resistance Tester
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UT522 series can perform precise 3-wire and simple 2-wire earth resistance measurement for power and electrical systems, lightning protection equipment, and g round system of all electrical equipment. This series is UNI-T’s introductory earth resistance tester with high economic value. Its lightweight design is convenient for fieldwork.
Features
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Over range indication, test lead connection alarm
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TEST button for fast capture of measurement values
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20-group data storage/recall
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Backlight
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Data hold
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Auto power off/battery check
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Earth voltage measurement
Specifications
- Model: UT522
- Earth Resistance (Ω)
- 0～40Ω Accuracy ±(2%+20)
- 0～400Ω Accuracy ±(2%+3)
- 0～4000Ω Accuracy ±(2%+3)
- AC Earth Voltage (V) ±(1%+6)
- 0～400V Accuracy
- Frequency: 50Hz/60Hz
- Display Count: 14000
- Manual Range: √
- Auto Power Off: About 10 minutes
- Low Battery Indication: √
- Data Hold: √
- Data Storage: 20 groups
- LCD Backlight: √
- Full Icon Display: √
- Double Insulation Protection: √
- Contact Badness Indication: Port C or Port E don't contact Display”- – – – Ω”
- Over-Range Display: Display OL
- Simple 2-Wire Testing: √
- Precision 3-Wire Testing: √
General Characteristics
- Power: 1.5V batteries (5#) X 6(NO)
- LCD Size: 70.6mm X 34mm
- Product Color: Red and grey
- Product Net Weight: 560g
- Product Size: 160mm X 100mm X 70.5mm
Standard individual packing
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1 * UT522 Digital Earth Ground Resistance Tester
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2 * Simple test lead,
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3 * Standard with clip test line
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2 * Auxiliary grounding nail
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1 * Gift Box
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