Siemens SITRANS LVL100 사용 설명서 - 페이지 12

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Siemens SITRANS LVL100에 대해서도 마찬가지입니다: 사용 설명서 (32 페이지), 사용 설명서 (33 페이지), 사용 설명서 (32 페이지)

페이지 인쇄

Transport

Pressure/Vacuum

Handling

Welded socket

Adhesive products

Do not hold SITRANS LVL100 on the tuning fork.

The process fitting must be sealed if there is gauge or low pressure

in the vessel. Before use, check if the sealing material is resistant

against the measured product and the process temperature.

The max. permissible pressure is specified in chapter " Technical

data" or on the type label of the sensor.

The vibrating level switch is a measuring instrument and must be

treated accordingly. Bending the vibrating element will destroy the

instrument.

Warning:

The housing must not be used to screw the instrument in! Applying

tightening force can damage internal parts of the housing.

Use the hexagon above the thread for screwing in.

4.2

Mounting instructions

For threaded versions of SITRANS LVL100 in combination with a

mounting boss with O-ring in front and welding marking.

SITRANS LVL100 with thread sizes ½", ¾" and 1" have a defined

thread. This means that every SITRANS LVL100 is in the same posi-

tion after being screwed in. Remove therefore the supplied flat seal

from the thread of SITRANS LVL100. This flat seal is not required

when using a welded socket with front-flush seal.

Before welding, unscrew SITRANS LVL100 and remove the rubber

ring from the welded socket.

The welded socket is provided with a marking (notch). With horizontal

mounting, weld the socket with the notch facing upward or downward;

in pipelines (DN 25 to DN 50) aligned with the direction of flow.

Fig. 5: Marking on the welded socket

Marking

In case of horizontal mounting in adhesive and viscous media, the

surfaces of the tuning fork should be vertical in order to reduce

buildup on the tuning fork. The position of the tuning fork is indicated

by a marking on the hexagon of SITRANS LVL100. With this, you can

check the position of the tuning fork when screwing it in. When the

hexagon touches the seal, the thread can still be turned by approx.

SITRANS LVL100 - Operating Instructions