Supplied
With The Instrument
- Four right-angled terminal adaptors to enable test leads with spade connectors
(as in the field kit) or test leads with bare ends to be used.
- Mains supply lead for battery charging
- Operating instructions book
Also available with the following:
- Three color coded test leads; 25, 50 and 100 ft.
- Ground rods, 20" (1 pair)
- Padded case to hold instruments, leads, and rods
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Biddle DET5/B Megger® Digital Earth Tester
Designed
to measure earth electrode resistance, earth continuity etc.
Applications
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.
Choice of Electrode Site
Depending on the nature of the soil and its moisture content, before sinking an
electrode or electrode system, it is often helpful to survey the surrounding area before
choosing the final position for the electrode.
Earthing System Maintenance
After installation, checks may be made on an earthing system to see if
there is any significant change in the resistance over a period of time or under different
soil moisture conditions.
SPECIFICATION
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
- 20 W range: 10 mA a.c.r.m.s.
- 200 W range: 1 mA a.c.r.m.s.
- 2 kW range: 100 µA a.c.r.m.s.
Max. Current Spike Resistance
The typical limit of resistance of the external current circuit is:
- 20 W range: 2 kW
- 200 W range: 5 kW
- 2 kW range: 48 kW
Max. Potential Spike Resistance
The typical limit of resistance of the external potential circuit is:
- 20 W range: 2.2 kW
- 200 W range: 22 kW
- 2 kW range: 53 kW
Max. Output Voltage: 30 V
Display: 3½ digit l.c.d. maximum reading 1999
Power Supply: Internal rechargeable sealed lead acid cells 12
V, 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 V a.c. 50 Hz/60 Hz. |
