ACROSSER TECHNOLOGY
31
+
-
+
_
+ -
Vcm
G
Ground
AR-B3001
Signal Source
Ground
Amplifier
Vin = Vs
Vs
+
_
Correct :
Do not connect - to G
at the computer
Figure 4-2 Connecting a grounded signal source to
differential input
To avoid the ground loop noise and unreliable readings,
the signal ground should be connected to the LOW input
of AR-B3001 differential input. If the ground referred
signal source is connected to the LOW input as shown in
Figure 4-3, the difference between grounds will end up
appearing in series with the input signal.
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