VEGA VEGASON 71 - 2 … 75 - 2 User Manual

Page 48

Storage of a false echo profile

71 - 2 … 75 - 2

False echo learn

MODE 1 - 14 … 1 - 17

Construction details inside the vessel such as e.g.
-

weldment joints

edges

ladders

struts etc.

create false echoes.

In a learn cycle these echoes can be determined
and stored on
-

location and

strength (amplitude).

In a later measuring cycle the stored false echoes
are gated out.

Requirements
-

The strength (amplitude) of the useful echo must
be larger in the interference position than that of
the false echo.

The vessel must be emptied to a minimum and
the distance to the product must be determined,
e.g. sounded.

Procedure
-

program dipped value for the learn distance

activate learn cycle
With varying product surfaces the learn cycle
can be repeated. The data is up-dated.

Programming example (with VEGASON 75 - 2)

Indication of gain ......................................................

• can be displayed in mode 1 - 14

Program learn distance ............................................

• select mode 1 - 15 in MODEFIELD
• program learn distance 24.00 in PARAMETER

FIELD

• then store with STO-button

Activate cycle ...........................................................

• select mode 1 - 17 in MODEFIELD
• select learn cycle in PARAMETER FIELD with

the figure 1

• then store with STO-button, activate learn cycle

During the learn cycle (approx. 3 … 4 Min.)

CAL

flashes.

Delete false echo data .............................................

• the delete procedure can be triggered in mode

1 – 16

0 m

Real echo

False echo

sounding e.g. 24 m