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4.3 Input
Connections
Strain gages and strain gage-based transducers are connected to
the P3 through the input terminals. The P3 can accommodate up
to four input channels, labeled 1 through 4. To connect the
leadwire to the input terminal, lift the black arm of the desired
terminal, insert the leadwire all the way into the terminal, and
carefully lower the arm to clamp the wire to the terminal. Con-
nections can be made whether the unit is on or off.
4.3.1 Quarter Bridge Connections
The following configuration illustrates the connections for mak-
ing a three-wire quarter bridge connection:
Select the dummy terminal (D
120
, D
350
, or D
1K
) to correspond
with the nominal resistance of the strain gage.
350
D
P+
D
S-
120
D P-
1K
S+
T
