Erbe ERBOTOM ICC 350 M, Instruction Manual

Page: 82 / 100

9-24
NESSY
Dependence of the warning signals on contact resistance R
ü
between the two contact surfaces of
a divided neutral electrode and the HF current I
HF
flowing through the entire surface of the
neutral electrode:
A = In this range, I
HF
is sufficiently small relative to R
ü
. No warning signal.
B = In this range, I
HF
is too large relative to R
ü
. The HF generator can be activated, however a
red warning signal and four warning tones are given after each activation of the HF generator.
In this condition, the unit must continue to be used only in emergency cases.
C = In this range, R
ü
is greater than 120 ohms. The HF generator cannot be activated. After
every activation attempt, a red warning signal and warning tones are given.