Specifications
Argonaut Technologies
Revision
06/24/98
8.1.1
ASWM Set-up Procedure
Place the specified solvent bottles with safety carriers into the ASWM positions noted in Table
3.
Remove the solvent bottle cap on the bottle in position A and insert the Teflon bottle seal. Install
a new polyethylene SolventIReagent Inlet Filter onto the Solvent Bottle Cap pick-up line. Screw
Bottle Cap Assembly
A
onto the bottle in position A.
Repeat step
2
for bottle position B,C, and D.
Turn the valves on top of each Solvent Bottle Cap Assembly toward the tubing labeled BTL
PRESSURE.
0.44 27
sec
Table
3
-
ASWM Set-up
8.2
Determining the Solvent Delivery Times
Determining the solvent delivery time ensures the appropriate volume of solvent is delivered to the
RVs. Due to differences in solvent viscosity the delivery times will be different for various solvents.
The best method to measure solvent delivery times is to manually deliver solvent to the RVs using the
Toggle Valves on the front of the ASWM and a stop watch.
Warning: Insure proper solvent deliver times before operating the Automated Solvent Wash
Option. Inappropriate solvent delivery times can cause over filling of the RVs creating cross
contamination between RVs, upper manifold clogs and solvent overflow into the ASWM.
8.2.1
Delivery Timing Procedure
Install ten
5
ml RVs onto side A of the Reactor Unit. Turn the Reactor Unit Control Valves on
side A to SOLVENT and VENT. Set the MANIFOLD toggle valve to the open (down) position
and close the Lower Manifold Drain Valves.
Using a stopwatch, start timing the delivery for solvent A when you flip the Toggle Valve for
solvent A on the ASWM. Stop the stopwatch when the appropriate volume is delivered to the
RVs (use
4
ml's for this procedure). Return Toggle Valve A to the closed position to stop the
flow of solvent. The time on the stopwatch represents the delivery time for the specific solvent
and volume dispensed from bottle
A.
Flip the Purge Toggle Valve on the front of the ASWM to the ON position. This will purge any
remaining solvent in the delivery line. Notice that purging the delivery line adds additional
solvent to the
RVs. Return the Purge Toggle Valve to the OFF position. During an Automated
Solvent Wash Program purging is automatically performed after each delivery of solvent.
Insure the Glass Waste Tank is installed on the Reactor Unit. Attach the parallel drain lever and
flip all the Lower Manifold drain levers to the open position. Drain the RVS on side A of the
Reactor Unit,
turn
the left Control Valve to DRAIN GAS and the right Control Valve to
CLOSED.
Repeat steps
1-4
for the solvents in position B, C, and
D
to determine delivery times for all four
solvents. As a reference, the delivery times determined in our laboratories is shown in Table
3.
Your actual delivery times may be different.
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