产品描述:
ERT 1557
The ERT 1557 earth resistance tester is suitable for use on 110V, 230V and three phase electrical systems, this special lightweight unit provides accurate Earth electrode resistance measurement without disconnecting the electrode. It can also be used to measure soil resistivity.
Earth resistance measurement is carried out using 2,3 and 4-wire method. The ERT has an internal memory for 500 test results which you can download to your conventional PC. Its user-friendly features include a large rotary dial for test selection, large LCD and simple push button test activation. The unit is supplied with four Earth spikes and full test lead set. The ERT is one of the most competitive Earth resistance testers on the market.
技术参数:
ERT 1557
Technical specification
TESTS
Earth Resistance 2, 3 and 4 wire method
Display Range |
0.00ohm - 50.0kohm |
Measuring Frequency |
125Hz +/- 1Hz |
Measuring Current |
<20mA effective |
Measuring Voltage |
<50V effective sine wave |
Earth Resistance using current clamp
Display Range |
0.0ohm - 2.00kohm |
Measuring Frequency |
125Hz +/- 1Hz |
Measuring Current |
<20mA effective |
Measuring Voltage |
<50V effective sine wave |
Specific Earth resistance (p)
Display Range |
0.00ohm - 1999kohm |
Measuring Frequency |
125 Hz +/- 1 Hz |
Measuring Current |
<20mA effective |
Measuring Voltage |
<50V effective sine wave |
ADDITIONAL INFORMATION
Dimensions |
260mm x 100mm x 55mm |
Weight |
0.8kg |
Memory |
500 memory locations |
Communication |
USB |
Compliance |
EN 61557-1, -5, IEC61010-1, 300V CAT II |