Environmental Express SPE-Express with Cover User Manual
Page 42
SPE-‐Express Operation and Instruction Manual
www.envexp.com
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•
Using the 2.25
"
wrench (provided with the SPE-Express unit) placed on the flat surfaces around
the bottle adapter/ injection head, loosen the bottle adapter/ injection head. (With the swinging
assembly in the down position the bottle adapter should be spun clockwise and the injection
head should be spun counterclockwise).
•
Replace with desired bottle adapter/ injection head by spinning onto the ends of the ball valve
and tighten with the 2.25
"
wrench. (With the swinging assembly in the down position the bottle
adapter should be spun counterclockwise and the injection head should be spun clockwise).
•
Insert the set screws into the 3 holes on the side of the bottle adapter/ injection head and tighten
with a 3/32
"
Allen wrench. (If one of the set screws is not easily accessible due to being blocked by
the cover or assembly it may be left loose).
•
Complete this step only if the injection head is being changed: replace the air intake line onto
the barb and tighten reagent injection lines into the designated ports. (The Hexane Bottle Rinse
tube MUST be in the center port. The Methanol line should be clockwise from the center port and
the DI Water line should be counterclockwise from the center port). Replace the front cover of
the swinging assembly and fasten with 3 screws with a 3/32
"
Allen wrench.
5.7 Detaching the Bottle Harness
If it is desired to disconnect the bottle harness from the SPE-Express unit the following steps should be followed to
ensure there is no leakage of chemicals. Note that this process should not be followed if there is a possibility that
the source lines within the bottle harness or unit are contaminated.
•
Remove the Reagents Pressure Hose from the SPE-Express unit. (This will allow the SPE-Express
components to retain pressure while the bottles and bottle harness are depressurized).
•
Loosen the caps on the n-Hexane, Methanol, and DI Water. DO NOT REMOVE CAPS FROM
BOTTLES.
•
Ensure there is a filter cup assembly in place on the swinging assembly and that the swinging
assembly is in the UP (LATCHED) POSITION.
•
Ensure the lower glass chamber is seated on the upper glass chamber and secured with the glass
clamp.
•
Enter the Station 1 tab of Manual Screen in the SPE-Express software.
•
Click to open the “Hexane Waste Sol”.
•
Ensure that all n-Hexane waste has entered the Hexane waste container and click to close the
“Hexane Waste Sol”.
•
Click to open the “Water Miscible Waste Sol”.
•
Ensure that all water miscible waste has entered the water miscible waste container and click to
close the “Water Miscible Waste Sol”.
•
Click the “Hexane Chamber Rinse Sol” to drain the hexane from the chamber rinse line back to
the n-Hexane source bottle.
•
Click the “Nitrogen Pressure Sol” button.
•
Once the n-Hexane is evacuated from the line (Nitrogen will be heard entering the n-Hexane
source bottle), close the Hexane solenoid by pressing “Hexane Chamber Rinse Sol”.
•
Click to open the “Eluted Sample Path Sol”.