Onicon F-5100 Insertion Manuel d'utilisateur télécharger pdf (Page 12)

11451 Belcher Road South, Largo, FL 33773 • USA • Tel +1 (727) 447-6140 • Fax (727) 442-5699 • [email protected]

F-5100 Insertion Thermal Mass Flow Meter Manual 05/15 - 0663-20 / 18333 Page 12

In addition to the information provided above and on the previous page, the following diagram

and table should be used as a guide to the proper location for installing the sensor.

Upstream obstruction

Minimum straight run required upstream of sensor location

(A) Without Flow Conditioner (B) Upstream of Flow Conditioner

Single bend preceded by ≥ 9 diameters of

straight pipe

15 Diameters 3 Diameters

Pipe size reduction in straight pipe run 15 Diameters 3 Diameters

Multiple bends in plane with < 9 diameters

of straight pipe between them

20 Diameters 9 Diameters

Pipe size expansion in straight pipe run

20 Diameters 10 Diameters

Tees 30 Diameters 10 Diameters

Multiple bends out of plane 30 Diameters 9 Diameters

Modulating or regulating valve 40 Diameters 10 Diameters

Diaphram or roots type utility sensor 40 Diameters 10 Diameters

IMPORTANT NOTICE

Always use the maximum available straight run. When more than the minimum required straight

run is available place the sensor such that the excess straight run is upstream of the sensor location.

The ow sensor must be properly installed with respect to the direction of ow. Installing the

sensor with the UPSTREAM label facing downstream will result in signicant errors in the ow

measurement.

How to Determine the Available Straight Pipe Diameters:

For each application, locate the longest straight, unobstructed section of pipe (no bends,

tees, valves, other insertion probes, size transitions).The longest straight pipe run in

inches divided by nominal pipe size in inches equals “diameters of straight pipe.”

2 X Diameter

• For 1” and larger diameter pipes

• Install in vertical or horizontal pipe

• For horizontal pipe position meter

anywhere in upper 180°

CLEARANCE

REQUIRED

FOR INSTALLATION

30” - 36”

Depending on

pipe size

Vertical pipe position

2 Dia.

5 Dia.

Clearwater, FL USA

F-5000 Series

www.onicon.com

ᴫ

COMM

PWR

FLOW

2 Dia.

5 Dia.

Clearwater, FL USA

F-5000 Series

www.onicon.com

ᴫ

COMM

PWR

FLOW

Flow sensor

inserts here

• For 1” and larger diameter pipes

• Install in vertical or horizontal pipe

• For horizontal pipe position sensor

anywhere in upper 180

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 32 33

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Onicon F-5100 Insertion Manuel d'utilisateur Page 12

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