Yokogawa FD20 Immersion Fitting Manual de usuario descargar pdf (Pagina 8)

IM 12B6K2-01E-E

3. INSTALLATION

3-1. Selecting the installation site

It is important that, whatever method of

mounting is used, the point of measurement is

truly representative for the entire solution.

- Avoid an area where the measurement value

varies significantly.

- Ensure that the sensors are always immersed

in the process liquid (not dry).

- When selecting the installation site, first check

that the liquid temperature and pressure

meets the sensors and fittings requirements.

- If the fitting is used in a tank with stirrer

or agitator, or if it is placed in a fast flowing

process, care must be taken that it

is adequately supported to prevent any

movement.

- Install the fitting in a site where it can be easily maintained.

The mounting position of the sensors must be within the area as shown in figure 3-1.

3-2. Installation

Before installing the immersion fitting, check that all parts and accessories were supplied by

Yokogawa.

Ensure that there is enough spare around to withdraw the fitting for calibration and mainte-

nance.

3-2-1. “Hoisting eye” type mounting

On top of each fitting is a “hoisting eye” to withdraw from the process.

3-2-2. Flange mounting fitting

If ordered, the immersion fittings are supplied with a flange for fixing in a tank. The flange is

connected to the fitting as shown in the dimensional drawings. These drawings also show

the configuration of holes.

The max. pressure is 3 bar. For higher pressure ratings and other types of flanges please

contact your local Sales Department of Yokogawa.

Table 2. Flanges being used as a standard

INCORREC T

15 º

HORIZON TA L

GO OD

Fig. 3-1. Mounting position of sensors

Type Material TypePP Material DN Thickness

fitting fitting flange flange flange

1-hole PVC glue-flange PVC 32

3-hole SS weld-flange SS 80 10 mm

4-hole SS weld-flange SS 100 10 mm

3-hole PP collar-bush + PP + 80

lap-joint flange PP (steal inlay)

4-hole PP collar-bush + PP + 125

lap-joint flange PP (steal inlay)

3-hole PVDF collar-bush + PVDF + 80

lap-joint flange PP (steal inlay)

4-hole PVDF collar-bush + PVDF + 125

lap-joint flange PP (steal inlay)

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 19 20

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Yokogawa FD20 Immersion Fitting Manual de usuario Pagina 8

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