Wika OLS-C20 Manuel d'utilisateur télécharger pdf (Page 9)

WIKA operating instructions mini limit switch, model LSO.02 9

13334591.02 10/2010 GB/D/F/E

4. Design and function

Process connection

Ø A

Spanner width

Sealing face

Ø C

M16 x 1.5 SW24 Ø 21

G ½ A SW30 Ø 26

½ NPT SW24 -

4. Design and function

4.1 Description

This instrument is designed to detect limit levels of

liquids. For this purpose the sensor is equipped with a

V-shaped glass-tip. The model is also ideally suited for

level control, particularly in applications requiring high

precision. The measurement principle is independent of

the colour, refractive index, density, conductance and

dielectric constant of the liquid.

Integrated electronics include limit sensing and self-

calibration. The output is an open-collector pnp-transistor.

4.2 Instrument design

The sensor is a one-piece device consisting of a mechanical connection which depends

on the type of sensor, and integrated electronics built into a stainless steel housing. The

measuring length, ML, to the sealing face is always 24 mm.

Dimensions in mm

Principle of operation

Gas

Liquid

Plug connection

cable

length

3000

green

LED

Model LSO.02 with cable connection

4.3 Scope of delivery

Cross-check scope of delivery with delivery note.

Selectable process connections

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 59 60

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Wika OLS-C20 Manuel d'utilisateur Page 9