Fluke 1625 User Manual

Earth/Ground Tester
Procedure of Measurements
33
To keep the instrument as simple as possible at the time of delivery, all special
functions, such as LIMIT input, BEEPER programming, measurement of
earthing impedance (R
*
) etc, are not activated at delivery. They can be acti-
vated with personalized user's code (see "Changing of all Pre-set Data with
Personalized Code"). Refer to Figure 8.
G
I
E
Umeas.
E
U
E
RE
RS
S
S
I
H
H
R
H
edw011.eps
Figure 8. Earthing Resistances Measurement - Method
3-pole/4-pole Measurement of Earthing Resistance
This measuring function measures earthing and earth dissipation resistances of
single earth electrodes, foundation earth electrodes and other earthing systems
by using 2 earth spikes. See Figure 9.

Fluke 1625 Specifications

General

Storage Temperature	-20 °C to 60 °C
Testing Methods	3-pole fall-of-potential, 4-pole
Measurement Frequency	128 Hz
Power Supply	6 x 1.5 V AA batteries or optional AC adapter
Safety Rating	CAT II 300 V
Safety Standards	IEC 61010-1