加样器的使用及注意事项（The application and notice of sampler）.doc

加样器的使用及注意事项（The application and notice of sampler） The application and notice of sampler Method 1: forward movement method (suitable for routine liquid removal) 1. Add the sample gun scale or reading to the amount of liquid required for quantitative absorption and fit the appropriate suction head. 2 press the button to the first stop position (obvious block feeling) and keep it in order to squeeze the air inside the suction head to form negative pressure inside the suction head. 3. Immerse the suction head under the liquid level 2~3 millimeters deep, and then slowly release the button. The liquid enters the suction head under the influence of atmospheric pressure. To be inhaled after the required amount of liquid, the sample will be removed from the liquid level, wipe the suction head outside the liquid, pay attention to contact with the tip of the suction head. 4. Add the sample gun to the container to be added to the liquid so that the suction head is near the liquid level of the container. Press the button gently to the stop point so that the liquid will flow out slowly. The liquid will flow, continue to be under pressure to stop button second points, and the vessel wall suction head tip gently contact above the liquid surface, to avoid bubbles. 5. Continue to press and hold the button, withdraw the sample gun, and discard the suction head in the container of the special pollution suction head. Release the button to the starting position. If you need to continue sucking, replace the suction head and repeat the operation. Otherwise, the sample sample in the vertical gun gun. Method two: reverse shift method (for high viscosity liquid and / or easy to remove foam liquid, as well as the removal of a very small amount of liquid) 1. Adjust the required scale. After putting on the suction head, press the button down to the second stop position. 2. Dip the suction head under the surface 2~3 millimeters deep, then slowly release the button and inhale the liquid. When the