NOMEX
Operating Manual - NOMEX Multimeter Setup
D909.131.00/02 en
49
6.3.6 TF Range
The following settings are available for
the TF range (total filtration range):
–
Auto
,
i.e., automatic detection of the total filtration
during a measurement
–
Manual
,
i.e., manual entry of the total filtration
NOTE
At power-up or when the application is
changed, the TF range is automatically set to
Auto
.
NOTE
When the TF range is set to
Manual
, the total
filtration is displayed in gray in the measuring
table and on the measuring window. The color
gray indicates that the total filtration is not a
measured value but rather a set value. The set
total filtration value is also displayed in the sta-
tus line of the measuring window.
For MAM applications, it is
not
possible to select
the TF range.
The measurable total filtration depends on the
tube voltage (kV) and vice versa. For measurable
combinations of tube voltage and total filtration,
refer to
. The gray area is the range that
is defined by PTW for measuring the total filtra-
tion. It is also possible to perform measurements
in the hatched areas. In this case, however, the
measurement results may be less accurate.
