DCS ADR24 Operations Instructions download pdf (Page 33)

VEGASON 51P … 53P 33

Mounting and installation

1 m 2 m 3 m 4 m 5 m

5 m

10 m

15 m

max. meas.

distance

Distance of the

transducer to the

vessel wall

Curve 1 (liquids)

Curve 2 (solids)

Distance of the sensor from the vessel wall depend-

ing on the measuring distance (type 51 … 53)

If the sensor is mounted too close to the

vessel wall (dimension A in diagram), strong

false echoes can be caused. Buildup, rivets,

screws or weld joints on the vessel wall su-

perimpose their echoes to the product or

useful echo. Please ensure the sufficient

distance of the sensor to the vessel wall,

depending on the maximum measuring dis-

tance (dimension B in diagram).

In case of good reflection conditions (liquids,

no vessel installations), we recommend de-

termining the sensor distance according to

. At a max. meas. distance

of e.g. 10 m, the distance of the transducer

(according to curve 1) should be approx.

1.5 m.

In case of solids with poor reflective proper-

ties, determine the distance to the vessel wall

according to . Under very

bad measuring conditions (rough vessel

walls, struts), it might be necessary to in-

crease the distance to the vessel wall, or to

also filter out the false echoes by storing

them in memory, thereby adapting the sensor

more precisely to the environment.

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DCS ADR24 Operations Instructions Page 33