Operating Instructions; 3-Pole Measurement - Fluke 1621 User Manual

Operating Instructions

To avoid possible electric shock or personal injury, before
powering up and operating the device, carefully read and
follow all safety regulations described in "Safety
Regulations."

3-Pole Measurement

To perform a 3-pole measurement:
1. Insert the probe and auxiliary electrode stakes into the soil as shown
in Figure 4. Ensure the probe stake is a minimum distance of 20 m
(64 ft) from the earth ground electrode. Ensure the auxiliary electrode
stake is a minimum distance of 20 m (64 ft) from the probe stake.
Position the auxiliary electrode stake so it forms a straight line with
the earth ground electrode and probe stake.
2. Set the rotary switch to OFF.
3. Install the test leads as shown in Figure 4. Connect the earth ground
electrode to jack E/C1. Connect the probe to jack S/P2. Connect the
auxiliary electrode to jack H/C2.
4. Set the rotary switch to 3 pole and press START. The ACTIVE icon
displays to indicate that the measurement is in progress.
When the measurement is finished, the earth ground electrode
resistance (R
electrode resistance (R
resistance (R
XW Warning
) automatically displays. To display the auxiliary
E
), press DISPLAY. To display the probe
H
), press DISPLAY again.
S
Earth Ground Tester
Operating Instructions
11