Mounting
CI/FMT400-VTS/VTCS-X1
Sensyflow FMT400-VTS, FMT400-VTCS
EN - 11
4 Mounting
4.1
Recommended steadying lengths according to DIN EN ISO 5167-1
G00805
X
D
×
5
D
×
G00806
< 7°
Expansion
X = 15
< 7°
G00807
Reducer
X = 15
G00808
90° elbow
X = 20
G00809
Two 90° elbow
in one level
X = 25
G00810
Two 90°elbow
in two levels
X = 40
G00811
Valve / slide
X = 50
Change from one to two columns
To achieve the stated measuring accuracy, the steadying lengths
seen above must be provided. For combinations of inlet run dist-
urbances, e. g. valve and reducer, you must always consider the
longer inlet run length. In confined spaces at the mounting location the
outlet run length can be shortened to 3 x D. The reduction of the
minimum inlet run length, however, will impact on the achievable
accuracy.
High repeatability of the measuring value is still provided. Under
certain circumstances, special calibration can be performed for insuf-
ficient steadying lengths. For this purpose and in individual cases
consulting is necessary.
For gases with extremely low density (hydrogen, helium) the stead-
ying lengths must be doubled.
Change from one to two columns