Clamp-On Ground Tester Model 6418
11
2.2.1. CONNECTION
The ground electrode to be measured (R
X
) is in a series/parallel
arrangement with other ground electrodes via the earth impedance (Z
E
)
and physical connection to other resistance paths (Z
S
). The measured
impedance will be slightly greater than R
X
assuming the downstream
impedance is very low. For example: If R
X
is 21
Ω
and Z
S
/R
1
-R
n
is
effectively 0.6
Ω,
the Model 6418 will read 21.6
Ω
.
During the impedance measurement, the instrument emits an
intermittent audible “beeping” signal. This is caused by the
measurement frequency that flows in the measurement head.
The sound can vary as a function of the frequency and amplitude
of the current measured. This sound is normal and cannot be
eliminated.
2.2.2. FREEZING AND/OR STORING A MEASUREMENT
When the measurement has stabilized, you can press the
HOLD
key to
freeze it and/or
MEM
to record it.
Содержание 6418
Страница 1: ...ENGLISH User Manual GROUND TESTER 6418...
Страница 27: ...Clamp On Ground Tester Model 6418 27 NOTES...
