Emerson MICRO MOTION 1700 - Manual (Page 96)

8.5.3 Hazardous area frequency/discrete output wiring using
barrier with external load resistance
Hazardous area frequency/discrete output wiring using barrier with
external load resistance
Figure 8-11:
Hazardous area Safe area
A
B
C
D E
F
A. R
barrier
B. V
in
C. V
out
D. Counter
E. R
load
F. Ground
Note
Add R
barrier
and R
load
to determine V
in
.
I/O wiring for Model 1700 and Model 2700 transmitters with intrinsically safe outputs
92 Micro Motion ® Model 1700 and 2700