Fluke T100 User Manual page 12

Fluke T100/120/140
Users Manual
Rotary Field Indication
The voltage testers are equipped with a double-
pole rotary field indicator.
The safety measures have to be met
The rotary phase indication is always active.
The symbols R
However, the rotary direction can only be deter-
mined within a three-phase system. Here, the
instrument indicates the voltage between two
external conductors.
• Connect the instrument test probe with the
supposed phase L2 and the handle test
probe with the supposed phase L1.
• Touch Accessible electrode (11).
The voltage and the rotary field direction are
displayed.
L2
L1
PE
R
signifies that the supposed phase L1 is
the actual phase L1 and the supposed
phase L2 is the actual phase L2
==> right rotary field
L
signifies that the supposed phase L1 is
the actual phase L2 and the supposed
phase L2 is the actual phase L1
==> left rotary field.
When re-testing with exchanged test pro-
bes the opposite symbol has to be illumi-
nated.
Measurement Point Illumination
Voltage testers T100re equipped with a measu-
rement point illumination feature. Thus, working
under bad lighting conditions (e.g. division
switch cabinets) is made easier.
• Press button for measurement point illuminati-
on (10) on instrument rear.
10
or
L3
N
R
L are always displayed.
L2
L1
L3
N
PE
L