22
4 Connecting to power supply
MINITRAC 31 • Foundation Fieldbus
62076-EN-190704
4.3 Connection - Level detection
Non-Ex instruments and instruments with non-intrinsically safe
signal output
8
9
10
4
5
7
6
2
1
3
1
1
24
/L
/N
PE
56
22
11
12
21
22
19
20
18
17
14
13
16
15
12
91
01
1
Fig. 14: Electronics and connection compartment with non-Ex instruments and
instruments with non-intrinsically safe signal output
1 Voltage supply
2 Relay output
3 Signal output FF bus
4 Signal input 4 … 20 mA (active sensor)
5 Switching input for NPN transistor
6 Switching input floating
7 Transistor output
8 Interface for sensor-sensor communication (MGC)
9 Simulation switch (1 = simulation on)
10 Setting the bus address for sensor-sensor communication (MGC)
3)
5 6 7 8
2
1
Fig. 15: Adjustment and connection compartment with non-Ex instruments and
instruments with non-intrinsically safe signal 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 signal output
You can find detailed information on the explosion-protected versions
(Ex-ia, Ex-d) in the Ex-specific safety instructions. These safety
Electronics and con-
nection compartment
- Non-Ex instruments and
instruments with non-
intrinsically safe signal
output
Adjustment and con-
nection compartment
- Non-Ex instruments and
instruments with non-
intrinsically safe signal
output
3)
MGC = Multi Gauge Communication
