Fluke 1625 FE 1625 Users Manual - Page 45

-pole/4-pole Measurement of Single Earth Electrode Resistances

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Earth/Ground Tester Procedure of Measurements Errors of the current transformer can be corrected as described in "Correcting Clip-on Transformer Error". 3-pole/4-pole Measurement of Single Earth Electrode Resistances See Figure 12. START TEST 1625 EARTH / GROUND TESTER H /C2 DISPLAY MENU Earth/Ground Resistance 300 k RA AC Resistance 300 k R DC Low Resistance 3k R 4 POLE 3 POLE 2 POLE 2 POLE CHANGE ITEM 4 POLE 3 POLE 4 POLE SELECT OFF S/P2 ES/P1 E /C1 4 Pole Probe Auxiliary earth electrode Earth electrode >20 m >20 m edw015.eps Figure 12. 3-pole/4-pole Measurement of Single Earth Electrode Resistances Turn central rotary switch to position "A RE 3pole" or "A RE 4pole". The instrument is to be wired according to picture and notices given on the display. A flashing of the sockets symbols EFGH or A, points to an incorrect or incomplete connection of the measuring lead. Fix clip-on transformer around the earth electrode to be measured. Make sure that the clip-on transformation ratio set on the instrument corresponds to the clip-on transformer used. Change settings if necessary (see "Changing of all Data Settings with Personalised CODE") 37

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Earth/Ground Tester
Procedure of Measurements
37
Errors of the current transformer can be corrected as described in “Correcting
Clip-on Transformer Error”.
3-pole/4-pole Measurement of Single Earth Electrode Re-
sistances
See Figure 12.
R
RA
R
CHANGE
ITEM
SELECT
START
TEST
DISPLAY
MENU
H/C2
S/P2
ES/P1
E/C1
4
POLE
3
POLE
4
POLE
2
POLE
2
POLE
4
POLE
OFF
3
POLE
EARTH / GROUND TESTER
1625
Auxiliary
earth
electrode
Probe
Earth
electrode
4 Pole
>20 m
>20 m
edw015.eps
Figure 12. 3-pole/4-pole Measurement of Single Earth Electrode Resis-
tances
Turn central rotary switch to position "
A
RE 3pole" or "
A
RE 4pole".
The instrument is to be wired according to picture and notices given on the
display.
A flashing of the sockets symbols
EFGH
or
A
, points to an incorrect
or incomplete connection of the measuring lead.
Fix clip-on transformer around the earth electrode to be measured.
Make sure that the clip-on transformation ratio set on the instrument corre-
sponds to the clip-on transformer used. Change settings if necessary (see
“Changing of all Data Settings with Personalised CODE”)