Operation Instructions Of Adjustable Quantitative Liquid Feeder
The instrument is divided into two types: internal and external.It is the use of syringe plunger reciprocating movement and two one-way piston liquid quantitative, directional movement, adding liquid.
Method of use
(1)The internal loading type is composed of liquid storage bottle and liquid feeder. The liquid feeder is a plastic screw-mouth bottle cap, which is connected with the syringe of the outlet pipe and the inlet pipe of the one-way piston to control the inlet and outlet of the test fluid. On the top of the bottle cap, there is a metal scale labeled locating stem and movable locating sleeve to control the accuracy of the amount of added liquid.Connect a glass tube with a plastic tube on the cap to export the sample.
At the end of the glass bend, there is a frosted nozzle to connect the plastic suction nozzle to control the flow rate. Among them, the model 111 adds a liquid hole on the bottle cap, and its scale positioning stem is metal in the core, the outside is made of hard plastic zigzag positioning, in the adjustment of capacity is more convenient and correct.Liquid storage bottle is a glass bottle with screw mouth for storing test liquid. The screw head matches the screw head of the bottle cap.
(2)External loading is to install the syringe syringe with one-way automatic piston outlet pipe and inlet pipe together with the positioning stem and positioning sleeve with calibration marks.
Clean all the apparatus and connect the rubber pipe of the outlet pipe with the outlet curved glass pipe on the bottle cap. The end of the curved glass tube is inserted into the plastic suction nozzle, and then the test fluid is added into the liquid storage bottle. The liquid storage bottle and the liquid filler are screwed tightly with the screw mouth, pumped up and down several times, and then the bubbles in the bottle can be discharged. Before use, the positioning sleeve is moved to the calibration mark on the positioning stem and fixed according to the amount of liquid needed. Continuous refueling can be carried out. If more precision is needed in the process of use, type 111 can be used on the one hand, and correct fixed positioning sleeve can be used after the calibration of capacity on the other hand.
Type 111: align the upper convex part of the positioning sleeve with the center of the two rows of teeth of the positioning stem, and then move upward to the calibration level of the required amount of liquid. Then rotate left or right to insert the teeth on the positioning sleeve into the tooth groove on the positioning stem, and slightly tighten the positioning screw to position. Do not unscrew the cap of the bottle when the test is used up. Remove the inlet cap, install a funnel to fill the required sample into the bottle, and then close the lid. At the same time, align the hole in the lid with the gap in the inlet, so that the gas can flow back. After using, rotate the inlet cap until the hole is closed, so as to avoid liquid volatilization.
The applicator disinfects the entire high temperature and high pressure.
The silicone tube of liquid feeder is made of special material, durable and not easy to crack.
Easy to use, reliable, high efficiency, small repetition error, can save the time and cost of research and experiment.
The parts of the feeder that touch the liquid are made of glass and polypropylene, which do not react chemically in the same way.
The upper and lower one-way piston and the glass plunger of the liquid feeder are precisely ground, the sealing property is good, and the accuracy of the liquid dosage is guaranteed.
If it is not used for a long time, it must be used to clean the liquid several times, so that the piston and plunger clean, so as to avoid piston and plunger card dead;
In the use of crystallized or impurity liquid, should be in the end of the inlet pipe with a filter net, to prevent the solid material stuck piston, plunger, thus affecting the accuracy of the liquid and normal use.
Adjustable quantitative liquid feeder is suitable for continuous quantitative liquid feeder of all kinds of liquids in laboratory and laboratory, and can be used in petrochemical, public health, metallurgy, scientific research, environmental protection and other industries.
Now “adjustable quantitative liquid plus” has been widely used in the hospital clinical laboratory continuous charging and various other laboratory reagents, and the original manual method (manually adding reagent through a straw), compared with convenient, reliable and repetitive error is small, the advantages of saving time and cost, but the product use limitations, namely each liquid “adjustable quantitative plus” can only hold a reagent for this reagent) and continuous charging.
In many experiments, several reagents need to be mixed proportionally before use and then added quantitatively to each reaction tube. Projects such as raids (often do the determination of calcium and magnesium ions and muscle, liver, its operations are mixed with Ⅱ amount of reagent Ⅰ quantitatively added to the reaction tube, convenient for adding reagent, part of the hospital is also used by the “adjustable quantitative add accumulator”, reagent and method is to put the reagent Ⅰ Ⅱ respective pour into a liquid “adjustable quantitative plus”, then in turn of the two reagents for continuous charging, the downside is not according to operation procedure, great error; Reagents need to be added twice, troublesome and time-consuming.
The reagentⅠ before another method is in use and Ⅱ blending and pour into a liquid “adjustable quantitative plus” in the continuous charging, the downside is need before using blender, very troublesome, with mixed reagent on hold too long can’t use, resulting in waste. In order to solve these problems in practical work, the utility model refits the original “adjustable quantitative liquid feeder” and designs the utility model, which has the advantages of automatically mixing reagents in proportion in the liquid feeder and continuously adding several reagents at one time without causing waste.