How to properly install and use the bottle-top dispenser
1. Install the pipette
According to the size of the reagent bottle used, cut the matching pipette into a suitable length, and manually tighten one end of the pipette with the fixed threaded sleeve to the bottom valve of the bottle-top dispenser.
2. Install the return pipe
Insert the straight end of a short transparent end of the transparent liquid return tube into the socket at the bottom of the bottle-top dispenser and next to the pipette valve.
3. Install the dispensing tube
A dispensing tube with a white plastic support sheath is secured to the horizontal interface on the front side of the finish dispenser by a fixed nut at one end thereof. Note that the dispensing tube is now tightened and the nut is tightened.
4. Installed into the reagent bottle
Install it onto the threaded opening of the reagent bottle through the threaded connection (caliber A45) on the bottom of the bottle-top dispenser. If the diameter of the reagent bottle is smaller than the above-mentioned diameter, it can be transferred to the reagent bottle used by the three threaded adapters (caliber: A32, A38 and S40).
5. Prepare liquid aspiration
Hold the reagent bottle in one hand and turn the bottle-top dispenser on one hand so that the label of the dispensing tube and reagent bottle is facing the operator. Place the liquid container under the dispensing nozzle, remove the sealing cap of the dispensing nozzle, and slide back (ie, toward the dispensing tube interface) to insert the cap into the fixed position.
6. Remove the bubbles
Turn the dial on the top of the bottle-top dispenser to the quarter or third of the range, and turn the side safety valve to the arrow on the back of the finish dispenser (ie, facing the back of the dispenser) Direction rotation). This operation was repeated several times by pulling the handle on the top of the bottle-top dispenser and then quickly pressing it, until the visible air bubbles were not observed through the side window of the bottle-top dispenser. Next, rotate the safety valve until the arrow points to the front position (ie, rotates in the direction of the pipette), and repeat the above aspiration and liquid discharge operation until all the air bubbles in the pipe are discharged.
7. Quantitative dispensing
Rotate the metering dial on the top of the bottle-top dispenser to the desired dispensing capacity (the dial can be rotated in both directions). The container that needs to receive the liquid is placed under the dispensing nozzle, and the top piston handle is lifted gently and steadily until it can not be pulled, and then pressed down to the bottom to quantitatively remove the required volume of the solution.
8. Processing after use
After use, you should ensure that the pipetting piston is at the bottom (controlled by the top handle) and the scale dial scale should be zero to lock the pipetting piston.
9. Simple maintenance and cleaning
To ensure a long service life of your bottle-top dispenser, some maintenance and cleaning work can be done in the following cases: pipetting pistons are not flexible; dispensing some restrictive solutions (such as high concentration of salt solution and high After the concentration of the alkaline solution); before the replacement of the liquid separation reagent; before the bottle-top dispenser is sterilized; replace the pipe of the bottle-top dispenser (suction pipe, liquid return pipe and liquid separation pipe);