Vega Conductive electrodes Bedienungsanleitung PDF herunterladen (Seite 34)

34 Conductive measuring system

Set-up VEGATOR 631 Ex

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Mode B

preferably as dry run protection

means with covered max.-electrode

- relay energizes, connection 12 - 14 is

connected through relay

- transistor output is conductive

- LED output lights

means with uncovered max.-electrode (level

detection) or min.-electrode (pump control)

- relay deenergizes, connection 12 - 13 is

connected through relay

- transistor output blocks

- LED output extinguishes

Switch point adjustment

Level detection for max.-signal

Pre-requirements

- Set the selection switch (13) to mode A

- Connect the signal conditioning instrument

to power supply

- Turn the potentiometer (2) to position 0

Switch point max.-signal

- Fill the vessel until the max. electrode is

covered by approx. 1 cm

- Turn the potentiometer (2) slowly clockwise

until the yellow LED extinguishes

The max. electrode is now adapted to the

product conductivity, i.e. the relay

deenergizes at max. level and the transistor

blocks.

Level detection for min.-signal

Pre-requirements

- Set the selection switch (13) to mode B

- Connect the signal conditioning instrument

to power supply

- Turn the potentiometer (2) to position 10

Switch point min.-signal

- Empty the vessel until the min. electrode is

covered by approx. 1 cm

- Turn the potentiometer (2) slowly

anticlockwise until the yellow LED

extinguishes

The min. electrode is now adapted to the

product conductivity, i.e. the relay

deenergizes at min. level and the transistor

blocks.

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