Range indication
Resipod has two current ranges.
Range indicator to the right: 200 µA range
Provided the external resistance (contact resistance of the
two outer probes plus resistance of the specimen) is not too
high, Resipod will drive the maximum current (200 µA) through
the specimen.
Range indicator to the left: 10 - 50 µA range
When the external resistance is too high, Resipod
automatically switches to supply 50 µA.
For even higher resistances, the unit applies the maximum voltage across the outer electrodes
and senses the resulting current through the specimen. In this case, the displayed resistivity is a
calculated value (voltage across inner probes divided by current sensed in outer probes), and the
reading is rounded to the nearest kΩcm. This mode works down to a current of 10µA (1 segment
lit). Below this range “OL” is indicated. (See “Indication of poor connection” below).
Current indication
All five segments lit indicate that the full 200 µA or 50 µA are
being driven into the test object. When this is not possible,
(see above), The display indicates this current to the nearest
multiple of 10 µA.
Indication of scaled reading
The ResipodLink software allows the user to introduce a correction to the displayed reading. This
is typically used together with a non-standard probe spacing, in which case the probe spacing
value used to calculate the resistivity must be changed. It may also be used to introduce a correc-
tion based on a form factor if desired.
Whenever the apostrophe to the right of the kΩ symbol is lit,
it indicates that a correction factor has been applied.
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