Vega POINTRAC 31 - Page 25

25
5 Connecting to power supply
POINTRAC 31 • 8/16 mA/HART - four-wire
43388-EN-180322
Instruments with intrinsically safe current output
Youcannddetailedinformationontheexplosion-protectedversions
(Ex-ia,Ex-d)intheEx-specicsafetyinstructions.Thesesafety
instructions are part of the scope of delivery and come with the Ex-
approved instruments.
1
1
24
/L
/N
PE
56
22
11
12
2122 1920 18 17 14 1316 15 12
2
1
4
4
3
Fig. 12: Electronics and terminal compartment (Ex-d) with instruments with
intrinsically safe current output
1 Voltage supply
2 Relay output
3 Interface for sensor-sensor communication (MGC)
4 Setting the bus address for sensor-sensor communication (MGC)
3)
567
8
2
3
4
1
2
+
( )
(-)
1
Fig. 13: Adjustment and connection compartment (Ex-ia) with instruments with
intrinsically safe current output
1 Terminals for intrinsically safe signal output 8/16 mA/HART (Multidrop) ac-
tive
2 Contact pins for the display and adjustment module or interface adapter
3 Terminals for the external display and adjustment unit
4 Ground terminal
Electronics and terminal
compartment - Instru-
ments with intrinsically
safe current output
Adjustment and connec-
tion compartment - In-
struments with intrinsi-
cally safe current output
3)
MGC = Multi Gauge Communication