Earth ground tester
RS232 ground resistance tester/Ground Bond tester
Model:LW7303
Feature :
1.Small volume, light weight
2.Special linear constant current output, current output range can be up to 30 ~ 40 A
3.Simple operation, key lock function
4.Provide 5 set of memory set
5.LCD display
6.Test line impedance self zero correction, ensure accuracy of test results
7.Resistance upper and lower limit set, intelligent alarm
8.Provide remote PLC control interface
| Parameter | 7303 | |
| Output current | 3.0～30.0 （A） | |
| Output voltage | 6V. MAX | |
| Output frequency | 50 or 60 Hz, ±100 ppm | |
| Output waveform | Sine wave, distortion (THD) < 2%, Crest Factor (Crest Factor) = 1.3 ~ 1.5 | |
| Resistance setting range | 0~510(mΩ) | 0~120(mΩ) |
| Corresponding current output | 3.0~10.0(A) | 10.0~30.0(A) |
| Resistance resolution | 1 mΩ | |
| Test time (s) | 0, 0.5 – 999.9 (s) (0 = continuous) | |
| Judgment accuracy | ±(2% of setting +2 counts) | |
| Voltage set | 0.00～6.00 V | |
| Test mode | four-wire measurement | |
| Others | ||
| Memory | 5groups memory | |
| Key Lock | To prevent any unauthorized operators arbitrarily changing the parameter | |
| Peripheral remote control, PLC interface | Provide Pass, Fail, Processing remote monitoring signals and the TEST, STOP contact | |
| Protection | Overload, Open circuit automatically cut off the output,light and buzzer alarm | |
| Display | 16 × 2 LCD display | |
| Dimension | 280mm(W) × 89mm(H) × 370mm(D) / 10Kg | |
