Operating instructions

Commissioning

Tank linearization

Example:

G09-RIA452ZZ-15-00-xx-xx-011

Fig. 22: Example for tank linearization

You want to determine the amount of cereal filled into a silo, display this information on site and

transfer it to a process control system. A 4-20 mA level sensor determines the level in the

container, the connection between the level (m) and volume (m

) is known and the level is

proportional to the sensor current. The volume calculated is output as a 0-20 mA signal at the

analog output in proportion to the volume. In the event of a fault in the system, the analog

output outputs an error signal of 21.0 mA.

• Container empty:

– Sensor signal 4 mA

– Level 0 m

– Numeric display should show 0 (m

)

– Bar graph should show 0%

– 0 mA should be present at the analog output

• Container full:

– Sensor signal 20 mA

Show points

Yes

Show all programmed support cells.

Function

(menu

item)

Parameter setting Description