NEPTUNE
EN - 27
5.7.1. Function
ZERO
–
Zeroing of test cable resistance
In every operating mode (AUTO, TMR) it is possible to zero the resistance of the test
cables before carrying out continuity tests. This operation is recommended upon the first
use of the provided test cables and in case different cables must be used (e.g. cable
extensions).
The operation is only possible for test cable resistance <5.00
.
1. Select position
Lo
2. Insert the test cables into input terminal
V
/+
and
COM/
, connect the alligator clips
and shot-circuit the cable ends between each other (see Fig. 32).
Fig. 32: Connection of the cables in compensation function
3. Press and hold (>2s) key
/ZERO
. The instrument starts the compensation procedure
of cable resistance, immediately followed by the verification of the compensated value.
The following screens are displayed in a quick sequence:
Fig. 33: Results of a correctly performed zeroing
4. The instrument performs the first measurement, detecting the resistance of the test
cables (see Fig. 33
–
left side). If the compensated value (ZERO) is
≤
5.00
, the
instrument keeps it saved and carries out the following test by performing a second
Содержание F3000U
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