VEGA VEGACAL 67 Profibus PA - Manual (Page 9)

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3 Product description
VEGACAL 67 • Profibus PA
31759-EN-130917
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1
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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
VEGACAL 67 is a level sensor with partly insulated electrode for con-
tinuous level measurement under high process temperatures.
The electronics functions according to the admittance principle
(phase-selective admittance processing).
It is designed for industrial use in all areas of process technology and
can be applied in all areas of industrial process measurement.
Probes such as VEGACAL 67 are used in solids applications.
The range of the process temperature is -50 … 300 °C
(-58 … 572 °F). With external housing -50 … 400 °C (-58 … 752 °F).
Probe, measured product and vessel wall form an electrical capacitor.
The capacitance is influenced by three main factors.
Area of application
Functional principle