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Retriever IV Fraction Collector User Manual - Isco

Retriever IV Fraction Collector User Manual - Isco

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<strong>Retriever</strong> <strong>IV</strong> <strong>Fraction</strong> <strong>Collector</strong>Section 5 MaintenancePin #Valve JackTable 5-2 Rear Panel Connector Pin DescriptionsFunctionDirection ofSignalDescription1 Valve Output Open collector to switch valve2 + 12 VDC — —Pump Plug1 N.O. — normally open contact2 N.C. — normally closed contact3 common — armature contactCount Jack1 count input CMOS of TTL Logic “0”, or contact closure, ordrop counter photocell2 +12 V supply output resistance plus supply for the photocell3 +12 V supply output resistance plus supply for a switch4 common — —5 pump stop output open collector provides a pump stop signalbetween tube6 +5 V supply output resistance plus supply for a lampMonitor Jack1 +12 V — —2 advance (tube change) input contact closure or open collector referenced tocommon to change tube, greater than 22 millisecondsin duration4 rack event mark output open collector provides an event mark betweenracks5 tube event mark output open collector provides an event mark betweentubes6 pause input contact closure or open collector referenced tocommon, to control the running of the fractioncollector8 earth — —9 common — —11 motor stop input open collector or contact closure referenced tocommon will keep the motor from running12 valve output open collector to switch valve13 pause count input contact closure or open collector referenced tocommon to stop any count input14 end of run output open collector, provides a signal when collectionis done15 14 VAC — —5-12

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