VEGA MINITRAC 31 4 … 20 mA_HART - four-wire With SIL qualification - Manual (Page 22)

22
5 Connecting to power supply
MINITRAC 31 • 4 … 20 mA/HART - four-wire
43389-EN-131119
5.3 Connection - Level measurement
Non-Ex instruments and instruments with non-intrinsically safe
current output
1 1
24
/L
/N
PE
56
91
01
1
22
11 12
21
22
19
20
18
17
14
13
16
15
12
2
3
1
4
6
5
Fig. 11: 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 4 … 20 mA/HART active
4 Signal output 4 … 20 mA/HART passive
5 Interface for sensor-sensor communication (MGC)
6 Setting the bus address for sensor-sensor communication (MGC) 3)
5 6 7 8
2
1
Fig. 12: 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
Instruments with intrinsically safe current output
You can find detailed information on the explosion-protected versions
(Ex-ia, Ex-d) in the Ex-specific safety instructions. These safety
instructions are part of the scope of delivery and come with the Ex-
approved instruments.
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
3) MGC = Multi Gauge Communication