29
Reference Manual
00809-0100-4530, Rev DD
May 2016
3.2.6
Replacing a displacer in an existing displacer chamber
A Rosemount 5300 Series Transmitter is the perfect replacement for an existing displacer
chamber. To simplify installation, proprietary flanges are offered to allow for using the same
chambers.
Figure 3-12. Replacing a Displacer in an Existing Displacer Chamber
Rosemount 5300 benefits
No moving parts: Less maintenance - dramatically reduced costs, and as a result,
improved measurement availability
Reliable measurement, that is independent of density, turbulence, and vibrations
Considerations when changing to Rosemount 5300
When changing from a displacer to a Rosemount 5300 Series Transmitter, make sure to
correctly match the Rosemount 5300 Series flange choice and probe length to the
chamber. Both standard ANSI and EN (DIN), as well as proprietary chamber flanges are
available.
shows probe length guidelines.
Table 3-5. Required Probe Length Depending on Chamber Manufacturers
Chamber manufacturer
Probe length
(1)
1.
If flushing ring is used, add 1 in. (25 mm).
Major torque-tube manufacture
(249B, 249C, 249K, 249N, 259B)
Dis 9 in. (229 mm)
Masoneilan
™
(Torque tube operated),
proprietary flange
Dis 8 in. (203 mm)
Other - torque tube
(2)
2.
For other manufacturers, there are small variations. This is an approximate value, actual length should be verified.
Dis 8 in. (203 mm)
Magnetrol
®
(spring operated)
(3)
3.
Lengths vary depending on model, SG and rating, and should be verified.
Dis between 7.8 in. (195 mm) to 15 in. (383 mm)
Other - spring operated
Dis 19.7 in. (500 mm)
Replace chamber flange
Displacer length
Probe length