Burkert Type 8112 Bedienungsanleitung PDF herunterladen (Seite 21)

With the mode adjustment (A/B) you can change the switching

condition of the relay. You can set the required mode according to the

"Function chart" (A - max. detection or overﬂow protection, B - min.

detection or dry run protection).

With this DIL switch (3) you can set the switching point to liquids

having a density between 0.5 and 0.7 g/cm³ (0.018 and 0.025 lbs/in³).

With the basic setting, liquids with a density of > 0.7 g/cm³ (0.025 lbs /

in³) can be detected. In liquids with lower density, you must set the

switch to > 0.5 g/cm³ (0.018 lbs/in³). The speciﬁcations for the position

of the switching point relate to water - density value 1 g/cm³ (0.036 lbs/

in³). In products with a diﬀerent density, the switching point will shift in

the direction of the housing or tuning fork end depending on the

density and type of installation.

Note:

Keep in mind that foams with a density > 0.45 g/cm³ (0.016 lbs/in³) are

detected by the sensor. This can cause faulty switchings particulary

when used as dry run protection system.

6.3 Function chart

The following chart provides an overview of the switching conditions

depending on the adjusted mode and level.

Level Switching status Control lamp

Mode A

Overﬂow protection

(8)(6) (7)

Relay energized Green

Mode A

Overﬂow protection

(8)(6) (7)

Relay deenergized Red

Mode B

Dry run protection

(8)(6) (7)

Relay energized Green

Mode B

Dry run protection

(8)(6) (7)

Relay deenergized Red

Mode

adjustment (2)

Sen

sitivity adjustment

(3)

LEVEL SWITCH 8112 • - Relay (DPDT) 21

6 Set up

32050-EN-120418

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 115 116

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