Model 302SixChannel USB
ChromatographyDataSystemQuickStart Tutorial
Connect the de-
tector signals to
the 302 board us-
ing the terminals
labeled In+ and In-
There are 6 sets of
in+ and in– screw
terminals
Choose the
“Integrator”,
“Computer” or
“Chart Recorder”
output from your
system. On
attenuation 1, the “
Chart Recorder” output is the same as
the “ Integrator” or “Computer” output.
Connect the “RemoteStart” output from
your instrument to the “in#1” ( remote
start ) andG ( ground ) terminals on the
302 companion board.
This step is
OPTIONAL, youdonot have touse
theRemoteStart feature..
Connect theTTL ( relay ) outputs to your
system. For example, if youwanted to
actuate aValco valve on your GC you
could use theTTL outputs to trigger the
valve. Youmay use either theTTL ( 0-5
voltsDC) outputs located on theA/D
board or any of the eight pre-wiredme-
chanical relays located on the compan-
ion board, Eachmechanical relay has a
common ( C ), normally open ( NO ) and
normally closed ( NC ) screw terminal.
This step is alsoOPTIONAL, youdo
not have touse theTTL ( relay ) out-
puts..
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Connect theTTL
outputs to your sys-
tem to control various
functions.
The 8TTL outputs
arepre-wired to eight
correspondingme-
chanical relays on the
302’s companion
board,
Run thewires
through the cutout on
the rear of the box,
