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6. Menu functions
26
6.4 Input
45
S e c t i o n
C i r c l e 1
45
1
C i r c l e 1
46
O f a c t o r
1.00
47
P f a c t o r
1.00
6.4.5 Cross-section
521
Set the cross-section for
- circle 1
- circle 2
- rectangle 1
- rectangle 2
- area
that is to be used to calculate the volume flow rate.
The shapes listed are contained in the instrument as
standard. The shapes can be changed using the soft-
ware (e.g. five circles).
4 Select the desired function with
5 Activate setting mode with
6 Select the value with
m m
50
7 Enter the next cross-section. To set the next valu-
6.4.6 Offset factor (O factor)
521
Set the offset factor that will be used to calculate
readings. The factor is stored with the cross-section.
The factor changes when another cross-section is
activated. The O factor depends on the outlet. The K
factor affects the calculated volume flow directly. For
standard applications the factor should be 1.
4 Select the O factor (0.01 - 10) with
521
6.4.7 Pitot tube factor (P factor)
Set the Pitot tube factor that will be used to calculate
readings.
- Testo standard Pitot tube (Prandl), factor 1
- Straight Pitot tubes, factor 0.67
4 Select the P factor (0.01 - 500) with
(Ø in mm)
(Ø in mm)
(a x b/height x width in mm or inch)
(a x b/height x width in mm or inch)
2
(m
)
down to go forward / back quickly) and confirm the
selection with
es, repeat steps 2 - 6 .
(hold the key down to go forward / back quickly)
and confirm the selection with
(hold the key down to go forward / back quickly)
and confirm the selection with
or
.
or
(hold the key
.
.
.
.
or
or
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