Installation - ABB FMT200-D Operating Instruction

In confined spaces at the mounting location the outlet run length can be shortened to 3 × 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 insufficient steadying lengths. For this
purpose and in individual cases, consult the DKD Calibration Department of ABB Automation Products GmbH
at Alzenau. An on-site adjustment is also possible, if reference flow values are precisely known, by entering a
calibration factor.
The specifications for the steadying sections relate to air and most other measurable gases.
Components that influence the flow (e. g. valves, shut-off fittings and similar components) should possibly be
mounted at the outlet run length, i. e. behind the measuring point.
4.4

Installation

The installation is described using the example of a pipe component. The description analogously also applies
to the installation using a weld-on adapter.
42/14-37 EN Thermal Mass Flowmeter FMT200-D (Sensyflow D)
1.
Transducer
2.
3.
Centering pin on outlet side
4.
Pipe component
5.
6.
The flow direction must agree with the direction shown by
the arrow on the pipe component.
The opening diameter of the sealings used may not be
changed and should on completion of the component in-
stallation guarantee that the detecting element and the pipe
are absolutely leakproof.
The centering pin on the pipe component or weld-on
adapter must be located downstream side (behind the
measuring point).
Check the supplied gasket G according to DIN 11851
between the transducer and the pipe component / weld-on
adapter for signs of damage prior to installation.
For flange pipe components, all flange screws must be
installed properly.
Connecting threads are to be connected with the pipelines
of the system using suitable sealant. All screw connections
are to be checked for tightness.
Mechanical installation
13