F 6221 (0625)
315
2.1.7 Variant C2: No supply, redundant current measuring, wiring via cable
• Redundant operation without transmitter supply for channels 7 and 8
• Cable type: Z 7063/6221/ExCn/ITI/R2 part number 93 6221 103
Figure 6: No supply, redundant current measuring, wiring via cable
d32
93 6221 103
93 6221 103
50
Ω
TC7+
TC8+
I7+
I8+
I-
TC7+
TC8+
I7+
I8+
I-
z14
d14
z30
d32
z14
d14
z30
I f(A)
Terminal
active Transmitter
Safety-related EEX measuring module
2m max.
length
Cable plug
measuring module
Cable plug
measuring module
physical
variable
Safety-related EEX measuring module