Model No.: MTQ 7200
This Digital Earth Resistance Tester is a new generation tester for electrician practice which is developed by our company in recent years. The circuit, structure and technique of traditional earth resistance tester have been improved and the new design is both fine-looking and practical. This one has more complete functions, higher accuracy, more convenient and reliable for operation and more suitable for outdoor use with dust and wet proof structure. It can test earth resistance of various earth systems including power systems, electric equipment, lightning conductors as well as resistance value of low resistance conductor and AC voltage test.
| Specification | ||
|---|---|---|
| Measuring range of earth resistance | 0-2000Ω | |
| Measuring range of earth voltage | 0-200V | |
| LCD display | 3 1/2 digit | |
| Size of LCD | 68×55mm (Height of character is 35mm). | |
| Response time | Measure earth resistance, about 5 seconds | |
| Measure earth voltage, about 2 seconds. | ||
| Withstand voltage | AC 1500V, 1 minute between circuit and outer casing | |
| Overload protection | On earth voltage, can withstand 300V AC (1 minute). | |
| On earth resistance, can withstand 200V AC (10 seconds). | ||
| Power supply | 1.5V×6 R6P AA SUM-3 batteries. | |
| Dimensions | 218×122×75mm | |
| Weight | about 900g (contain battery) | |
| Working environment | ||
| Working temperature | (0°C~40°C), relative humidity<80% | |
| Storage temperature | (-10°C~50°C), relative humidity<85% | |
| Ensure accurate temperature | (23°C±5°C), relative humidity <75% | |
| Earth Resistance | ||
| Range | Accuracy | Resolution |
| 20Ω | ±(2% rdg ± 0.1Ω) | 0.01 Ω |
| 200Ω | ±(2% rdg + 3 dgt) | 0.1 Ω |
| 2000Ω | ±(2% rdg + 3 dgt) | 1 Ω |
| Earth Voltage | ||
| Range | Accuracy | Resolution |
| 200 V | ±(1% rdg + 4 dgt) | 0.1 V |
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