Measurement Computing CIO-DAS16 - Manual (Page 21)

3.3.7 Isolated Grounds / Differential Inputs
Optimum performance with isolated signal sources is assured with the use of the differential input setting. Figure 3-10 below shows the
recommend connections is this configuration..
Figure 3-10. Isolated Grounds/Differential Inputs
17
+
-
In p u t
A m p
To A /D
A /D B o a rd I/O
C o n n e cto r
LL G N D
C H H igh
C H L ow
S ig n
a l S o
u rce
a n d A
/D B o
a rd
A
lrea d
y Iso
la ted
.
A lre a d y iso la te d s ig na l so u rc e
a n d A /D b o a rd co n n e c te d to
a d iffe re n tia l in p u t.
G N D
T he se g ro u n d s are
e le ctrica lly iso la te d .
1 0 K
1 0 K is a r e c o m m e n d e d v a lu e . Yo u m a y s h o rt L L G N D to C H L o w
in s te a d , b u t th is w ill re d u c e y o u r s y s te m ’s n o ise im m u n ity.