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2 principle of operation – VEGA VEGACAP 69 - contactless electronic switch User Manual

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3 Product description

VEGACAP 69 • - contactless electronic switch

31174-EN-130916

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Fig. 2: Layout of the type label (example)
1 Instrument type

2 Product code

3 Approvals

4 Process and ambient temperature, process pressure

5 Power supply and signal output, electronics

6 Protection rating

7 Probe length

8 Order number

9 Serial number of the instrument

10 Material, wetted parts

11 Symbol of the device protection class

12 Reminder to observe the instrument documentation

13 ID numbers, instrument documentation

14 Notified authority for CE marking

15 Approval directives

With the serial number, you can access the delivery data of the instru-

ment via www.vega.com, "VEGA Tools" and "serial number search".

In addition to the type label outside, you can also find the serial num-

ber on the inside of the instrument.

3.2 Principle of operation

VEGACAP 69 is a point level sensor with fully insulated capacitive

double rod electrode for level detection.
VEGACAP 69 is very rugged and maintenance-free and can be used

in all areas of industrial process technology.
Fully insulated probes such as VEGACAP 69 are preferably used in

liquids and non-conductive vessels.
Due to the insulation, the probe can be mainly used in aggressive or

corrosive products.
Typical applications are overfill and dry run protection.
The capacitive measuring principle places no special requirements

on installation. Hence, many different applications can be equipped

with VEGACAP 69.

Probe, measured product and vessel wall form an electrical capacitor.

The capacitance is influenced by three main factors.

Area of application

Functional principle