Fluke 1625 User Manual page 48

1625
Users Manual
Accordingly, these equivalent resistances are displayed as:
U
meas
R
Ei
li
Therefore the earthing resistance R
circuit of the individual equivalent resistances:
R
E
1 1
R R
E 1
1625 EARTH / GROUND TESTER
START
TEST
DISPLAY
MENU
AC
Resistance
300 k DC Low Resistance 3k
Earth/Ground Resistance 300 k
RA R R
2 POLE
4
POLE
3 2 POLE
POLE
4 4
POLE POLE
CHANGE
ITEM 3
POLE
OFF
SELECT
Figure 13. Measuring the Earthing Resistance without Disengaging the
1. Turn central rotary switch to position "AR
4pole". The instrument is to be wired according to picture and notices
given on the display.
A flashing of the sockets symbols EFGH or B, points to an
incorrect or incomplete connection of the measuring lead.
2. Apply current transformer to the pylon stub. Make sure that the trans-
formation ratio set on the instrument corresponds to the current trans-
former used. Change settings if necessary (see "Changing of All Data
Settings with Personalised CODE")
40
E
1
1 1
R R
E 2 E 3 E 4
H/C2
S/P2
ES/P1
E /C1
4 Pole
Overhead Earth Wire
of the pylon is determined as a parallel
E
Probe
>20 m >20 m
edw016.eps
3pole" or AR
E
Auxiliary
earth
electrode