32
SensyMaster FMT230, FMT250
THERMAL MASS FLOWMETER | OI/FMT230/250-EN REV. C
… 6 Installation
Assembly of the welding adapter with compression ring fitting
All dimensions in mm (in)
1
Compression fitting
2
Welding tube for the compression fitting
Figure 21: Welding adapter with compression fitting
h – sensor length
h3 – installation length
L = h3
−
(½ × ØD)
∅
D – outer pipe diameter*
263 (10.35)
244 (9.61)
to be calculated
≥
80 to 350 (
≥
3.24 to 13.78)
425 (16.73)
406 (15.98)
> 350 to 700 (> 13.78 to 27.56)
775 (30.51)
756 (29.76)
> 700 to 1400 (> 27.56 to 55.12)
Table 1: Dimensions of welding adapter with compression fitting
* The limitation of the maximum pipe diameter only applies for installations with thermal sensor elements in the middle of the pipe. In case of larger or non-
round cross-sections, a non-centered position of the thermal sensor elements in the piping is considered in the calibration.