VEGA VEGASON 83 … 87 ECHOFOX - Manual (Page 9)

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2.4 Configuration of a measuring system, sensor in Ex-area
In this application a measuring system consists of three components
-
a local Ex-sensor in the Ex-area
- a safety barrier and
- a signal conditioning instrument or processing system in the not-Ex-area
The kind of signal conditioning instrument or processing system mainly depends on the control and process technical
requirements.
2 Product description
Ex-area
Not-Ex-area
Separator Type 146 or
VEGATRENN 546
Sensor(s)
VEGASON 83 und 84
Signal conditioning
instrument e.g.
VEGAMET 514 V
(VEGAMET 407 V)
VEGACONNECT
Each sensor is connected to the respective signal conditioning instrument or processing system via a separator type 146
or VEGATRENN 546. The separator provides two intrinsically safe circuits. These circuits provide the power supply of the
sensor and the digital transmission of measuring data to the signal conditioning instrument or processing system.
The indicating and operating surface VEGA Visual Operating, installed on a PC ensures a simple and comfortable
configuration and parameter adjustment of the respective measuring system.
1. EV-input card 2. EV-input card
(via additionally EV-input card 5 sensors each can be connected)
CPU-central unit
usw.
etc.
etc.
Processing system
VEGALOG 571
RS
232
PC