It’s Better to Use a Bottle-Top Dispenser in This Way

The bottle-top dispenser is an instrument for measuring liquid reagents. It is widely used in the fields of biology and chemistry, as well as clinical medicine, industry, and commerce laboratories due to its reliability in safety, convenient operation, and precise calibration.

The bottle-top dispenser is fixed on the reagent bottle through a screw-top valve, closed tightly and firmly, so that the solution transfer process is in a closed system, avoiding the volatilization, splashing, and overturning of the solution, and reducing the environmental and human hazards. It is much safer than the completely open pipetting process of the measuring cylinder.

How to use bottle-top dispenser

1. Insert the liquid inlet pipe and tighten the nut.
2. Insert the drain tube and screw it tightly.
3. Open the cap and put it under the drain tube.
4. Adjust the dispensing volume from zero to the corresponding value through the rotating scale.
5. Exhaust process: make sure that the cover of the drainpipe is open, lift the piston for a certain distance, then press it down, repeat this step one to two times, and stop when the bubbles are completely eliminated through the observation window.
6. After exhausting, start preparing for liquid dispensing. (Note: If the exhaust has not been completely exhausted, please check whether the suction pipe or other valves are installed correctly.)
7. Adjust the dispensing volume from zero to the corresponding value through the rotating scale.
8. After use, first press the piston to the bottom, and then adjust the knob to zero scales to lock the bottle dispenser.
9. Pipetting process: Lift the piston steadily to a higher place, and then press it to the bottom steadily, thus completing a dispensing process.

Hawach provides Electronic Bottle-Top Dispenser, Mechanical Bottle-Top Dispenser for your use.

Features of HAWACH bottle-top dispenser

HAWACH bottle-top dispensers can be mechanical and electronic and their unique advantages make them well received.
1. It features a quick volume setting, with a precise scale design.
2. The smooth and precise piston slides up and down, making the operation convenient and comfortable.
3. The safety cap of the drain tube can avoid contact with the reagent, and it can be easily installed or removed even if you wear gloves.
4. It is suitable for reagent bottles of various sizes.
5. It has strong chemical resistance.
6. It can be sterilized at high temperatures.
7. It can meet and cover the 0.5 to 50ml capacity range.
8. The convenient design ensures simple and economical cleaning and maintenance of the dispenser.

How to clean the bottle-top dispenser

1. Set the scale of the scale dial to the zero position, and cover the nozzle of the dispensing tube;
2. Place the entire bottle-top dispenser and reagent bottle in a cleaning container of appropriate size, and then set the scale dial to the scale of the large dispensing volume;
3. Rotate and remove the bottle-top dispenser from the reagent bottle (wear gloves to operate);
4. Place the dispensing tube of the removed bottle-top dispenser on the reagent bottle mouth, and at the same time remove the dispensing tube cap and slide it back to a fixed position;
5. Move the piston handle up and down (make sure the arrow of the safety valve points to the dispensing tube) to remove the remaining solution;
6. Put a suitable special cleaning solution into the cleaning container, immerse the suction tube in it, and repeat the suction and discharge several times;
7. After repeated pipetting and cleaning with an appropriate solution (such as distilled water or acetone), remove and drain the remaining solution in the bottle dispenser;
8. Remove the suction tube, return tube, and dispensing tube from the bottle-top dispenser and clean them separately.