Vega FIBERTRAC 31 - Connection - Level Detection

17
4 Connecting to power supply
FIBERTRAC 31 • Four-wire 4 … 20 mA/HART
62067-EN-211203
4.3 Connection - Level detection
Non-Ex instruments and instruments with non-intrinsically safe
current output
1
1
24
/L
/N
PE
56 91011
22
11
12
2122 1920 18 17 14 1316 15 12
2
7
3
1
4
5
6
8
9
10
Fig. 12: Electronics and connection compartment with non-Ex instruments and
instruments with non-intrinsically safe current output
1 Voltage supply
2 Relay output
3 Signal output 8/16 mA/HART active
4 Signal output 8/16 mA/HART Multidrop passive
5 Signal input 4 … 20 mA
6 Switching input for NPN transistor
7 Switchinginputoating
8 Transistor output
9 Interface for sensor-sensor communication (MGC)
10 Setting the bus address for sensor-sensor communication (MGC)
3)
567
8
2
1
Fig. 13: Adjustment and connection compartment with non-Ex instruments and
instruments with non-intrinsically safe current output
1 Terminals for the external display and adjustment unit
2 Contact pins for the display and adjustment module or interface adapter
Ifinductiveloadsorstrongercurrentsareswitchedthrough,thegold
plating on the relay contact surface will be permanently damaged.
The contact is then no longer suitable for switching low-voltage
circuits.
Electronics and con-
nection compartment
- Non-Ex instruments and
instruments with non-
intrinsically safe current
output
Adjustment and con-
nection compartment
- Non-Ex instruments and
instruments with non-
intrinsically safe current
output
Connection to a PLC
3)
MGC = Multi Gauge Communication