SEP 2005 MODEL 1000
SETTING SOLENOID PURGE FLOWS
E-2
Have on hand the sample system drawing that was included with the GC system as part of the
shipping package. This drawing identifies, in schematic form, the location of solenoid purge
valves that you will need to operate during this procedure.
To set up solenoid purge flow, follow these steps:
(1) At the GC Controller, halt continuous analysis.
(2) At the Analyzer, ensure that all streams to be analyzed are plumbed into the system and
stream pressures are set to 15-20 psig.
(3) At the Analyzer, locate and close the solenoid purge valve for each solenoid. This is the
valve plumbed to the normally open (NO) port of each stream solenoid.
(a) Refer to the sample system drawing for the location of these valves.
(4) Access the Analyzer Valve Driver Board(s) with stream switches. Manually turn the switch
for stream 1 ON, and turn all other streams OFF.
(5) Open the purge valve associated with stream 2, and regulate the flow through the solenoid
purge flow indicator to approximately 200 cubic centimeters per minute (ccm).
(a) Refer to the sample system drawing for the location of purge valves.
(6) Open the purge valve associated with stream 3, and regulate the flow through the solenoid
purge flow indicator to add approximately 200 ccm to current flow.
(a) Flow indicator should now read 400 ccm.
(7) Continue to open solenoid purge valves, adding 200 ccm flow for each additional stream (as
measured at the solenoid purge flow indicator).
To Next Page
Loading...
