Dinel ULM-53L-10 Kullanım Kılavuzu - Sayfa 7

Ölçüm Cihazları Dinel ULM-53L-10 için çevrimiçi göz atın veya pdf Kullanım Kılavuzu indirin. Dinel ULM-53L-10 16 sayfaları. Ultrasonic level meters

Sayfayı Yazdır

7 . i

nstallation

a) Install the level meter in a vertical position into the upper lid of the tank (vessel) or reservoir

using a lug, a fastening nut or a flange in such a way that the ULM axis is perpendicular to the

level of the measured liquid (Fig. 1).

b) M inimum dimension parameters when installing into

a lid or a ceiling of a tank are listed in Fig. 3.

c) W hen installing in an open channel (reservoir, drain

and the like), install the level meter onto a console to

the expected maximum level as close as possible.

d) I n compliance with the measurement principle, no

signals reflected in the area directly below the level

meter (the so-called dead zone) can be evaluated.

The dead zone (Fig. 2) determines the minimum

distance possible between the level meter and the

highest surface level. Medium minimum distance

parameters are listed in chapter on „Technical

specifications".

e) I t is necessary to install the level meter in such a way

that the bin level does not interfere with the dead

zone when filled up to the maximum. If measured

level interferes with the dead zone, the level meter

will not work properly.

Fig. 2: Level meter dead zone

f) In case the maximum surface level in the tank interferes with the dead zone, the level meter

has to be mounted into a higher installation neck. Subsequently, the tank can be filled nearly up

to the maximum volume. The neck's inner surface has to be even and smooth (without edges

and welded joints), the inner edge should be rounded in the position point where the ultrasonic

waves leave the pipe. Choose the largest possible neck's diameter, but keep the neck's height

as low as possible. Recommended dimensions of the neck are listed in Fig. 4.

Fig. 4: Possible installation of the installation neck

ULM–53L

instrUctions

a – Neck heigh

b – Neck width

m – Dead zone

Fig. 1: Recommended installation

ULM–53L–02 ; 10

ULM–53L–06

ULM–53L–20

Fig. 3: Installation distance from the tank wall

ULM–53L–02 ; 06

ULM–53L–10

ULM–53L–20

in the tank

d > 1/12 c

(Min. 200 mm)

d > 1/8 c

(Min. 200 mm)

d > 1/10 c

(Min. 200 mm)

d – Distance from tank wall

c – Measuring range

m – Dead zone

a < 3 b

b > 100 mm

a < 1,5 b

b > 100 mm

a < 1,5 b

b > 150 mm