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Reference Manual

00809-0100-4811, Rev DA

Section 4: Basic Configuration/Start-Up

January 2015

Basic Configuration/Start-Up

Upper null zone

This parameter should only be changed if there are measurement problems in the upper part of

the tank. Such problems may occur if there are disturbing objects close to the probe. By setting

the Upper Null Zone (UNZ), the measuring range is reduced. See Disturbances at the top of the

tank on page 102 for further information.

Note

Measurements are not performed within the UNZ.

4 mA point

The 4 mA point must be set above the lower transition zone (see Transition zones on page 16).

If the 4 mA point is set to a point within the transition zone or below the probe end, the full

range of the analog output is not used.

20 mA point

Make sure the 20 mA point is below the upper null zone.

The 20 mA point must be set below the upper transition zone (see Transition zones on

page 16). If the 20 mA point is set to a point within the transition zone, the full range of the

analog output is not used.

Probe angle

If the transmitter is not mounted vertically, the angle from the vertical position must be given.

4.2.2 Volume configuration

For volume calculations, you can select one of the standard tank shapes or the strapping option.

Select None if volume calculation is not used.

Tank type

You can select one of the following options:

 Strap table

 Vertical cylinder

 Horizontal cylinder

 Vertical bullet

 Horizontal bullet

 Sphere

 None

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Astar HT-3300 Spezifikationen Seite 74