In recent years, we have seen the rapid development of science and technology in our great motherland. This made me feel extremely proud for me as a Chinese. With the advancement of technology and the progress of people, we will join the Chinese Cutting Machine trading network to make progress together. Join the hotline, we look forward to your call. Details:/
Tool used to clean the lens:
1. Acetone 2. Absorbent cotton 3. Lens paper 4. Dropping bottle and pipette needle 5. Cotton swab 6. Blowing air ball precautions:
1) The surface of the optical lens (mirror, focusing lens) should not be directly touched by hand. This can easily cause scratches on the mirror surface. If oil or dust on the mirror surface will seriously affect the use of the lens, the lens should be cleaned in time.
2) Optical lenses must not be washed with water or detergent. The surface of the lens is coated with a special film. Cleaning the lens with these will damage the surface of the lens.
3) Do not place the lens in a dark, damp place. This can cause the lens surface to age.
4) The surface of the lens is covered with dust, dirt, or water vapor. It is easy to absorb the laser and cause damage to the lens coating; lightly affects the quality of the laser beam, and no laser beam produces light.
5) When the lens is damaged, it should be promptly sent to the supplier for repair, try not to use the damaged lens, otherwise it will accelerate damage to the repairable lens.
6) When installing or replacing mirrors or focusing lenses, do not use too much pressure, otherwise it will cause the lens deformation, thus affecting the beam quality.
How to install or replace optical lenses:
1) Before installing the optical lens, pay attention to: Wear it clean, use soap or laundry detergent to clean your hands, wear white clean and light gloves; never use any part of the hand to touch the lens; take the lens should wear gloves and from the lens Take it on the side, do not touch the lens coating surface directly.
2) When assembling the lens, do not inflate the lens with a tone; the lens should be placed on a clean tabletop with a few pieces of lens tissue underneath. Take care when removing the lens to prevent bruises and falls. No force is allowed on the coated surface of the lens. The lens mount should be clean. Use a clean air gun to clean the dust and dirt from the lens holder. Then, remove the lens and gently place it in the lens holder.
3) When attaching the lens to the lens holder, do not use too much force to fix the lens to prevent the lens from being deformed, thus affecting the beam quality.
4) Precautions when replacing optical lenses: Be very careful when removing the lens from the box to prevent the lens from being damaged; before the package is opened, do not apply any pressure to the lens; when removing the mirror and focusing lens from the box, Wear clean gloves and take it from the side of the lens. When removing the packaging on the lens, avoid dust, etc., from falling onto the lens. After removing the lens, use the spray gun to remove the dust from the mirror, and then place the lens on the lens. On the paper, remove the dust and dirt from the lens holder and holder. Do not drop other foreign objects on the lens when assembling. When installing the lens on the lens holder, do not use excessive force to avoid deformation of the lens. After the lenses are assembled, use clean. The air gun again removes dust and foreign objects from the lens.
Steps to clean the lens:
Different lenses, cleaning methods are different. When the mirror is flat and without a mirror, clean it with lens paper, for example, clean the mirror; when the mirror is a curved surface or a mirror with a mirror, use a cotton swab to clean, such as cleaning the focusing lens.
1) Use lens paper to clean the lens: blow off the dust on the lens surface with a blower; use alcohol or lens paper to clean the surface of the lens; avoid using dry lens paper to directly pull on the mirror surface. Instead, lay the lens paper flat. The surface of the lens is dripping with 2-3 drops of high-purity alcohol or high-purity Beryllium. Pull the lens paper horizontally towards the operator. Repeat the above operation several times until the mirror is clean; if the mirror is very dirty When the lens paper can be folded 2`3 times, repeat the above steps until the mirror is clean.
2) Steps for cleaning the lens with a cotton swab: First use a spray gun to blow off the dust on the mirror surface; then use a clean cotton swab to remove the dirt; use a new cotton swab stained with high-purity alcohol or propylene to move the lens from the center of the lens and scrub the lens. One week after each wipe, change to another clean swab, repeat the above operation until the lens is clean; never use a cotton swab to operate; use a clean cloth to clean the lens, remove the marks on the mirror, be careful not to scratch it. Mirror; Take the cleaned lens to a place with sufficient light to observe. If the reflection of the lens is good, the lens has been clean. If the reflection of the lens is not good, you must continue to clean the lens and clean the lens. In the method described above, the lens is placed on the lens holder.
Storage of optical lenses 1) Optical lenses are properly stored to maintain the quality of the lenses.
2) Store the ambient temperature at 10-30 OC. Do not place the lens in a freezer or similar environment. Otherwise, it will condense and frost when removed. It will damage the lens easily. The temperature of the storage environment should not exceed 30 OC or it will affect the coating on the lens surface.
3) Keep the lens in the box.
The lens should be placed in a non-vibrating environment, otherwise it will easily cause the deformation of the lens, which will affect the performance of the lens.
Editing: kunshanwl
Ammonia
Ammonia nitrogen refers to nitrogen in the form of free ammonia (NH3) and ammonium ions (NH4+) in water.
Ammonia nitrogen is the main oxygen-consuming pollutant in the water, and its toxicity is closely related to the pH value and water temperature of the water.
In general, the higher the pH and water temperature, the stronger the toxicity, and the harm to fish is similar to nitrite.
Fish are more sensitive to ammonia nitrogen in water, and high ammonia nitrogen content will cause fish death.
0 mg/l-0.5 mg/l: Safe
1 mg/l: Stress
3 mg/l-6 mg/l: Risk
Ammonia Aquarium Test Strips,Nh3 Ammonia Test Kit,Ammonia Aquarium Test Kit,Fish-Tank Ammonia Test Kit
Jilin Test Bio-Electron Co., Ltd , https://www.tst-check.com