â… .DESCRIPTION
Aluminum Bitumen Butyl Tape is a cold applied self adhesive aluminum backed flashing in tape form.
â…¡.USES
Window and door openings (headers, sills,jambs, thresholds, nailing flanges)
Deck-to-wall intersections
Corner boards
Wall-to-wall tie-ins
Foundation sill plates
Sheathing panel seams
Under stucco finishes
Masonry walls
Roof detail areas
Gutters
Mobile home repair
Other building joints.
Exposed pipelines protection.
â…¢. COMPOSITION
High melting point polymer bitumen adhesive laminated to a 30-70 micron aluminium. The adhesive surface is protected by a release coated plastics film which is discarded during use.
â…£.Features
Easy application-Installation fast and easy-simply remove the release film and press onto the substrate.
Superior adhesion capabilities-Creates a strong bond to the substrate for long-lasting waterproofing
Protection.
Excellent sealing performance-The specially formulated rubberized asphalt adhesive seals around fasteners, allowing no water to penetrate and get to the substrate.
Highly conformable and flexible-Can accommodate settlement and shrinkage movement.
Long-lasting waterproofing protection-Both the aluminum surfaced polyethylene film and pure alu surface with the specially-formulated rubberized asphalt components create a water and moisture barrier that does not degrade from the effects of the environment.
â…¤.Technical Datas:
Waterproofing Wrapping Tape, Waterproof Aluminium Bitumen Flashing Tape, Alu Flashing Tape Jining Xunda Pipe Coating Materials Co.,Ltd , http://www.pipe-wrap.com
In the daily maintenance of the equipment, a little trick for camera debugging is explored for your reference. Road surveillance cameras nowadays generally use cameras with strong light suppression functions such as JvaSANY and Baitu. A standard lens is installed at the front end of the camera, which enables the imaging of the captured scene to be exactly on the target plane of the CCD image sensor. At the top of the camera, there is a gear with adjustable back focus. Generally, when the camera is shipped from the factory, the back focus is properly adjusted. Therefore, in the application of the fixed-focus lens before mating, there is usually no need to adjust the back focus of the camera. . In normal use, it may happen that when the lens focus ring is adjusted to the extreme position, the image still cannot be made clear. In this case, the back focus of the camera needs to be adjusted.
The steps for back focus adjustment are as follows:
1. Loosen the fixed screw of the standard lens on the front of the camera, push the lens to telephoto status by adjusting Zoom In (Zoom In), take a close-up shot of a distant object, and adjust the focus to adjust the close-up image.
2. Perform zoom out (Zoom Out) as opposed to the previous step to pull the lens back to Wide, and the screen becomes a panoramic image containing the close-up objects described above, but no focus adjustments can be made at this time (Note: If this is the case The image is blurred and the focus cannot be adjusted. Instead, it is ready for the next focus adjustment.
3. Rotate the back focus adjustment ring slightly, repeat the adjustment until the screen is clearest, and tighten the front standard lens fixing screw.
At this point, the camera and lens have been debugged.
Road surveillance camera how to adjust the back focus
Road monitoring cameras are subject to various external forces such as vehicle vibrations and vehicle crashes during daily use, causing changes in the aperture of the camera and blurring the captured image. The identification of the license plate is difficult to identify at night. This makes it difficult to exert the power of the monitoring system, which has caused a certain impact on the normal operation of the operating system.