R A 3-Pole Selective Earth Resistance Measurement With Current Clamp - Fluke 1623-2 User Manual

R 3-Pole Selective Earth Resistance Measurement with Current Clamp
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The R 3-pole Selective Earth Resistance Measurement with Current Clamp procedure is
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useful for the resistance measurement of different parallel sections of an earth/ground
system.
Select 3 POLE . See Figure 6.
1.
2. Connect test leads.
Connect the supplied test lead (1.5 m) to terminal E/C1 and its other end to the
ground system to be measured. Place two ground stakes in earth/dirt. Minimum
distance between earth electrode (E/C1), probe (S/P2) and auxiliary earth (H/C2)
should be at least 20 m.
Connect stakes with 25 m and 50 m wires to H/C2 and S/P2 as shown.
Connect current clamp with adapter cable as shown.
3. Push START.
 indicates that measurement is in progress. For continuous
measurement, continue to push the START button.
4.  indicates completed measurement. The result is kept on display until a new
measurement is started or the rotary switch is turned.
Earth/Ground Tester
Operation
15