3. Connect the Remote Start Cables (OPTIONAL)
TheModel 302 remotestart capability allows youto start the
datasystembymeansofaswitchclosure. Fourseparateremote
startcircuitspermittheusertoindividuallystartTIMEBASE1,
2, 3, and 4 of the data system. In some applications, the
chromatograph being used with the Model 302 may offer a
remotestartsignaloutputor switchclosureoutputthat permits
startingan integratoror otherdevice when theSTARTbutton
is pressed on the chromatograph’s on-board control panel.
Typically, this signal can be used to start the Model 302.
TIMBASES1 and 2 areequipped with pulse stretchers.
3-1. Routetheremotestartcablefromyourinstrumentthrough
theopen hole in the back of the Model 302.
3-2. Strip1/4”ofinsulationfromthe“+”and“-”wires ofyour
remotestart cable(s).
3-3. Insert the “+” wire into the Power Supply board screw
terminalmarked“#1IN”andsecuretheconnection.
3-4. Insert the “-” wire into the Power Supply board screw
terminalmarked“#1 G”and securethe connection.
3-5. Fora second instrument,insert the “+”wire into the “#2
IN”terminal,and the“-”wire intothe“#2 G”terminal.
3-6. The screw terminals for the third and
fourthinstruments’ remote startsare on the
A/Dboard. The bank of screwterminals is
labeled “DIGITAL IN” under “1 2 3 4.”
Connectthe“+”wiresforthethirdandfourth
instruments to screw terminals 3 and 4,
respectively. Connectboth “-” wiresto the
“GD”screw terminal next to the“4” screw
terminal(ontheright-handside).
NOTE: TIMBASES 3 and 4 require a
remotestartsignalthatpersistslongerforthan
one second. Check your instruments’
specifications(forexample,HewlettPackard
GCsproduceaveryshortremotestartpulse,
so you should connect one of these to
TIMEBASE1or2,whichareequippedwith
pulsestretchers).
Model 302
Six Channel USB PeakSimple Data System
The remote start wires for the first two
instrumentsareinsertedintothesescrew
terminalson thePower Supply board.
Connectthe remote start “+” cablesto screwterminals “3” & “4,”
and the “-” cables to “GD”.
1234GD
