VEGA VEGACAP 63 - transistor (NPN_PNP) - Manual (Page 9)

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3 Product description
VEGACAP 63 • - transistor (NPN/PNP)
30010-EN-130916
1
2
3
Fig. 3: Functional principle - Plate capacitor
1 Distance between the electrode surfaces
2 Size of the electrode surfaces
3 Type of dielectric between the electrodes
The probe and the vessel wall are the capacitor plates. The measured
product is the dielectric. Due to the higher dielectric constant of the
product compared to air, the capacitance increases as the probe is
gradually covered.
The capacitance change is converted by the electronics module into
a switching command.
VEGACAP 63 is a compact instrument, i.e. it can be operated without
external evaluation system. The integrated electronics evaluates the
level signal and outputs a switching signal. With this switching signal,
a connected device can be operated directly (e.g. a warning system,
a pump etc.).
The data for power supply are specified in chapter "Technical data".
3.3 Operation
The probe can be adapted to the dielectric constant of the product
directly on the electronics module.
A switching command can be triggered when the probe is covered or
laid bare.
On the electronics module you will find the following display and
adjustment elements:
•
Signal lamp for indication of the switching condition (green/red)
•
Potentiometer for switching point adaptation
•
DIL switch for measuring range selection
•
DIL switch for mode adjustment
3.4 Storage and transport
Your instrument was protected by packaging during transport. Its
capacity to handle normal loads during transport is assured by a test
based on ISO 4180.
The packaging of standard instruments consists of environment-
friendly, recyclable cardboard. For special versions, PE foam or PE
Voltage supply
Packaging