VEGA VEGAMET 614 - Manual (Page 12)

12 VEGAMET 614
17 18 19 20 21 22
9 10 11 12
1 2 3 4
23 24 25 26 27 28
13 14 15 16
5 6 7 8
L1 N
+ - + -
+ - + -
+ -
Electrical connection
Ex version
Before connecting Ex certified instruments,
please note the instructions in the attached
official documents as well as the valid installa-
tion regulations. Make sure that the Ex sepa-
rating chamber is plugged in on the left
instrument side before setup (see illustration
Coding).
3.3 Wiring plan
Fail
safe
relay Level
relay 1 Level
relay 2
Power supply
Sensor
DISBUS
output
Current
output
Voltage output
The connections "9, 10, 15, 16, 17 and 18“ can be
connected with the supplied jumpers to neighbouring
series 600 signal conditioning instruments.
3.1 Connection instructions
Note the following instructions for electrical
connection:
- The connection must be made acc. to the
local installation standards (e.g. in Ger-
many acc. to the VDE-regulations).
- The wiring between VEGAMET 614 and
sensor can be made with standard two-
wire cable.
- If strong electromagnetic interferences are
expected, we recommend the use of
screened cable. The screening must be
earthed on both ends.
- The line resistances stated in the technical
data must not be exceeded.
- If overvoltages are expected, we recom-
mend a sensor electronics with integrated
overvoltage protection or the installation of
VEGA overvoltage arresters.
3.2 Connection instructions for
Ex approved applications
When wiring between VEGAMET 614 Ex and
an explosion protected sensor, the installation
rules, in Germany acc. to VDE 165 and the
EC type approval certificate, must be ob-
served. The official documents are supplied
with the respective instrument.
3 Electrical connection