Onicon F-5500 - Sensor Orientation Direction of Flow; Sensor Element Alignment

FLOW
PIPE
FLOW DIRECTION
INDICATOR
SET SCREW
+5°
-5°
FLOW
FLOW
i
i
Fig. 2.4: Straight Run Requirements for Upstream Obstructions - Insertion
NOTE: Always use the maximum available straight run. When more than the minimum
required straight run is available place the meter such that the excess straight run is
upstream of the meter location.
Fig. 2.5: Orientation of Flow
Meter
Install the flow meter with the
flow direction indicator pointing
in the direction of flow in the
pipe.
Sensor Element Alignment
Every F-5500 flowmeter is
equipped with equal length sensor elements. To be sure that the flowmeter elements
are lined up correctly in the process stream, please refer to "Fig. 2.5: Orientation of
Flow Meter" on page 21and be sure that the Flow Direction Indicator is pointing in
the direction of flow in the pipe.
Fig. 2.6: Sensor
Elements
NOTE: Rotational misalignment must not exceed ±5°.
11451 Belcher Road South, Largo, FL 33773 • USA • Tel +1 (727) 447-6140 • Fax +1 (727) 442-5699 • sales@onicon.com
F-5500 Thermal Mass Flow Meter Manual 06/17 - 2030 / 107023 Page 21
Model F-5500
INSTALLATION
Installation: Insertion Type
Sensor
Orientation
Direction of
Flow
Sensor
Element
Alignment
Upstream obstruction
Straight run required
upstream of meter location
without flow conditioner
Straight run required
upstream of flow conditioner
mounting flange
Straight run required
downstream of meter
location
Single bend preceded by ≥ 9 diameters
of straight pipe
15 Diameters 3 Diameters 5 Diameters
Pipe size reduction in straight pipe run 15 Diameters 3 Diameters 5 Diameters
Multiple bends in plane with < 9
diameters of straight pipe between them
20 Diameters 9 Diameters 5 Diameters
Pipe size expansion in straight run 30 Diameters 10 Diameters 5 Diameters
Tees 30 Diameters 10 Diameters 5 Diameters
Multiple bends out of pipe 40 Diameters 10 Diameters 5 Diameters
Modulating or regulating valve 40 Diameters 10 Diameters 5 Diameters