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Features:
Specifications:
Range | Earth resistance | accuracy | Resolution |
Earth resistance | 0-200 volts | ± 2% rdg + 5dgt | 0.1 volts |
20Ω | 0Ω ~ 19.99 Ω | ± 2% rdg + 0.1 Ω | 0.01 Ω |
200 Ω | 20Ω ~ 199.9Ω | ± 2% rdg + 3drg | 0.1 Ω |
2000 Ω | 200Ω ~ 1999Ω | ± 2% rdg + 3drg | 1 Ω |
Measurement error range (under condition 23 ± 5 ℃ and ≤75% RH): earth voltage (see table 1) | |
Response time: | Earth resistance: about 5 seconds earth measurement voltage: about 2 seconds |
Voltage tolerance: (residential wire) 1500 volt AC 1 minute without spark jump | |
Overload protection: | Earth Resistance Range: 200 volts AC (10 seconds) Earth Voltage Range: 300 volts AC (30 seconds) |
Automatic shutdown on 10 minutes without action. | |
Earth tome resistance measurement: | 10sec-10min |
Power supply: 9V DC R6P (SUM-3) * * * * * * | |
Working environment: | Temperature: 0-40 ℃; Relative humidity: ≤ 85% RH (none) |
Condition: | Temperature: -20-60 ℃; RH: ≤75% RH (none) |