Due to the complex installation environment of the optical transceivers, some users usually suspect that the products are faulty. In fact, the technology of the optical transceivers is very mature. After the products are shipped out of the factory, they have undergone repeated testing and copying, so the product itself is less likely to have problems. Therefore, when there are problems in the field, the first thing to consider is the installation problem, which can be investigated from the following aspects:
1. The optical fiber itself has not been tested, the optical path is not stable or the light attenuation is too large, etc.;
2. The front-end equipment is faulty, such as the camera has no video or no power;
3. Back-end equipment failures, such as no video on the monitor, incorrect keyboard control protocol, and the inability to control itself;
4. The connection line is faulty, such as the welding of the video head is not good, the control line is connected incorrectly, or the connection line is connected wrongly or reversed.
The above phenomenon is especially the most likely to occur when a circuit fault occurs. When a problem is encountered, it needs to be carefully checked. When troubleshooting, you can use the elimination method to eliminate one device and one device, and finally determine the key to the problem. When judging whether there is a problem with the optical transceiver, it is recommended that the user put the transmitter and receiver together for close-range testing. If the connection fails, the optical transceiver itself is faulty, and it is necessary to contact the manufacturer for replacement. In order to reduce the problem, the user should test the optical transceiver at a short distance before installation, so that it can quickly pass through the installation and debugging, saving time.
Reducer is one of the chemical industrial Pipe Fittings. It is used in connecting two pipes with different diameters via welding. It usually adopts diameter reduction pressing, diameter expansion pressing or diameter reduction and expansion pressing. Stamping is treated in some reducers. The reducers were divided into Concentric Reducer and Eccentric Reducer.
Standard:ASME B16.9-2007,ASME B16.25-2007,ASME B16.5-2007,EN10253-1-1999 EN10253-2-2007 EN10253-3-2008 EN10253-4-2008
DIN2605-1-1992 DIN2605-2-1995,JIS B2311-2009 JIS B2312-2009 JIS B2313-2009,GB/T12459-2005 GB/T13401-2005 GB/T10752-2005SH/T3408-1996 SH/T3409-1996,SY/T0609-2006 SY/T0518-2002 SY/T0510-1998,DL/T695-1999 GD2000 GD87-1101,HG/T21635-1987 HG/T21631-1990
Size:Seamless Pipe Reducer : 1/2"~24"DN15~DN600
Welding pipe reducers: 4"~78" DN150~DN1900
Wall Thickness:sch10, sch20, sch30, std, sch40, sch60, xs, sch80, sch100, sch120, sch140, sch160, xxs, sch5s, sch20s, sch40s, sch80s
Material: carbon steel: ASTM/ASME A234 WPB-WPC
alloy steel: ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP 911stainless steel: ASTM/ASME A403 WP 304-304L-304H-304LN-304N ASTM/ASME A403 WP 316-316L-316H-316LN-316N-316Ti ASTM/ASME A403 WP 321-321H ASTM/ASME A403 WP 347-347H
Low-temperature steel: ASTM/ASME A402 WPL 3-WPL 6
High performance steel: ASTM/ASME A860 WPHY 42-46-52-60-65-70Industrial processes:bending,squeezing,pressing,forging,machining and more.
Applications:Our pipe reducers are widely used in many industries,such as petroleum,power generation,natural gas, chemicals, shipbuilding, papermaking and metallurgy,and so on.
Steel Reducers,Pipe Reducer,Concentric Reducer,Eccentric Reducer
HEBEI ZIFENG NEW ENERGY TECHNOLOGY CO.,LTD. , http://www.zifengpipeline.com