ABB SensyMaster FMT430 - Page 35

SensyMaster FMT430, FMT450 THERMAL MASS FLOWMETER | OI/FMT430/450-EN REV. B 35
Dimensions in mm (in)
1
Centering pin
2
Groove for O-ring
3
Connection flange DN 25 (1 in)
4
Flow direction
Figure 21: Dimensions in mm (in)
h – sensor length
Ø D – outer pipe diameter (min. / max.)
263 (10.35)
100 to 150 (3.94 to 5.91)
425 (16.73)
> 150 to 500 (> 5.91 to
19.69)
775 (30.51)
> 500 to 1150 (> 19.69 to 45.28)*
* The limitation of the maximum pipe diameter only applies for installations with a sensor element in the middle of the pipe. In case of larger or non-round
cross-sections, a non-centered position of the measuring element in the piping is considered in the calibration.