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How the Jule Gradient Formers work in manual pumping mode:

1) Fill each cylinder with the fluids to be mixed.
Gradient Former in manual pumping mode, Step 1

2) Insert pistons and start magnetic stirrer.  Dispense the linear gradient by slowly pressing on the dual piston assembly by hand or use the lead screw provided on models J17 and J5.
Gradient Former in manual pumping mode, Step 2                             Gradient Former in manual pumping mode, Step 3
Push pistons by hand..................................or........ turn lead screw to advance pistons. 
 AUTOMATIC OPERATION OF GRADIENT FORMERS
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