Dinel ULM-53 series 사용 설명서 - 페이지 8

{카테고리_이름} Dinel ULM-53 series에 대한 사용 설명서을 온라인으로 검색하거나 PDF를 다운로드하세요. Dinel ULM-53 series 20 페이지. Ultrasonic level meters
Dinel ULM-53 series에 대해서도 마찬가지입니다: 사용 설명서 (20 페이지), 매뉴얼 (8 페이지), 매뉴얼 (6 페이지)

페이지 인쇄

•

The level meter must not be installed in places with

direct solar radiation and must be protected against

weather conditions.

•

In case the installation at places with direct solar ra-

diation is inevitable, it is necessary to mount a shield-

ing cover above the level meter (Fig. 8).

•

If possible, insert the cable from above and let a drain-

ing loop in order to avoid intrusion of humidity (Fig. 9).

•

The cable bushing as well as the connector have to

be tightened sufﬁ ciently to prevent penetration of

moisture.

•

To lower the minimum distance to the medium meas-

ured , a reﬂ ection board made from solid, even and

smooth material can be installed together with the

level gauge (Fig. 10). Subsequently, the tank can be

ﬁ lled nearly up to the maximum volume. The solution

is suitable for open tanks and reservoirs.

•

Scattering or attenuation of the ultrasonic signal

can result if the surface level has been moderately

stirred or rippled as a consequence a stirrer's op-

eration, inﬂ ow of liquid and the like. Consequently,

measuring range or unreliable level meter's function-

ing might follow (Fig. 11).

•

False surface reﬂ ections of the ultrasonic signal might

result as a consequence of rotating mixer's blades

that ripple the surface level and thus cause unreliable

level meter's functioning (Fig. 12).

•

The level meter should not be installed at places

where ultrasonic signal false reﬂ ections caused by

stirrer blades might occur (Fig. 13).

Fig. 11: Moderately stirred

surface

Fig. 12: Intensely stirred

surface

Fig. 8: Direct solar radiation shielding

cover

Fig. 9: Prevention to avoid

intrusion of humidity

H + L = dead zone

Fig. 10: Reﬂ ection board

Fig. 13: False reﬂ ection caused by

mixer blade

ULM–53