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The Biddle 250500 DET5/B Digital Earth Tester is designed to measure earth electrode resistance, earth continuity etc. It's primary application is in the testing of earth electrodes, whether these take the form of a single electrode, multiple electrodes, mesh systems, earth plates or earth strips.
Specifications
| Earth Resistance Ranges | 0.01W to 19.99W |
| 0.1W to 199.9W |
| 1.0W to 1999W |
| Comply With Standards | BS CP1013 (1965), VDE 0413 Part 7 (1982) |
| Test Frequency | 128 Hz |
| Test Current | 20W range: | 10 mA a.c.r.m.s. |
| 200W range: | 1 mA a.c.r.m.s. |
| 2 kW range: | 100 µA a.c.r.m.s. |
| Max. Current Spike Resistance | 20W range: | 2 kW |
| 200W range: | 5 kW |
| 2 kW range: | 48 kW |
| Max. Potential Spike Resistance | 20W range: | 2.2 kW |
| 200W range: | 22 kW |
| 2 kW range: | 53 kW |
| Max. Output Voltage | 30 V |
| Display | 3½ digit LCD maximum reading 1999 |
| Power Supply | Internal rechargeable sealed lead acid cells 12V, 0.8 Ah capacity. Battery voltage range over which basic accuracy is maintained, 10.0 V to 13.5 V. Battery charging time, 10 hours max. (from completely exhausted). Charging supply required, 200 V to 255 V or 100 V to 130 VAC. 50 Hz/60 Hz. |