Pay attention to the suitability of choosing ppe

Speaking of the after-sales service of the building intercom industry is actually an old-fashioned topic, but although it is often talked about, the result is not satisfactory. On the topic of after-sales maintenance in the building intercom industry, an interview was held with senior leaders including Di Nike, Hua Baian, Guanlin, Hui Ruitong, Roule, etc., and concluded that the equipment maintenance in the building intercom industry is currently facing Several major issues:

A brand more than the agreement between the brands can not communicate

At present, there are many domestic building intercom brands, and there are no less than 300 corporate brands, and the degree of competition can be imagined.

The building intercom industry not only has a large number of brands, but also does not have a unified standard agreement. The brand and the brand cannot be compatible with each other. Therefore, in terms of maintenance, each brand can only be responsible for the maintenance of its own brand, resulting in the current confusion. phenomenon.

2. Communication and coordination among property, engineering and manufacturers

Although manufacturers provide products, they are not directly users of the product—end users. The engineering firm is located between the manufacturer and the property. For the user, the engineering company is the representative of the manufacturer. The attitude and construction quality of the project owner directly affects the impression of the household on the brand of the manufacturer. For the manufacturer, the engineering contractor is a window for the user. Through this window, the manufacturer knows the user's needs and feedback from the user. So, the engineering firm plays a key role between the manufacturer and the property.

In addition, in many cases, the tenants are facing the contractor rather than the brand manufacturer. Therefore, when there is a problem with the equipment, the tenants first report to the contractor. Once the problem has not been resolved for a long time, the reputation of the engineering firm will be affected. This has caused the contractor to dare to cooperate with some small brands. Instead, it chooses to cooperate with brand manufacturers with more than five years of qualification, which will directly limit the Brand development space.

Therefore, the manufacturer should handle the relationship with the engineering firm and clarify the responsible party and the problem-implementing party from the beginning, so as to avoid the situation where the problem of the product is not resolved.

Therefore, how to weigh the relationship between the three parties and coordinate well is a powerful guarantee for the smooth development of after-sales maintenance work for building intercom manufacturers.

Equipment manufacturers installed more than three years ago have closed down or the equipment has been discontinued

For some large electronic products, such as home appliances, the after-sale maintenance period will generally be three to five years, although free maintenance may be only one year. Similarly, for building intercom equipment, after-sales maintenance is often listed as an important part of a project's contract.

However, due to the industry reshuffling or changes in the direction of business development, many SMEs have closed down, or the original brand of equipment has been forced to stop production, transformation to other industries, so that the building has been put into use after-sales maintenance of building products Work is not guaranteed. Because the agreements between different brands are incompatible with one another and cannot replace only broken devices with other brands, the products of the entire building can only be replaced in a unified manner, and the wiring installation can be performed again before normal use can be made.

At present, this phenomenon is not uncommon. Many districts have such problems. Although the building intercom system is installed, due to the previous years' installation, equipment problems can no longer be used, but the original brand cannot be found. Manufacturers.

Conclusion

In fact, not only the building intercom industry, the entire post-sale maintenance of the security industry is very serious, security companies should face this industry issues. The author believes that the coordination of the relationship between the manufacturer, the project owner, and the property is certainly important. However, the industry standard is the most direct and effective way to completely solve this problem.

YJ-T101 Series

Stereo Microscopets,Microscope Instruments,YJ-T101 Series

LCD Digital Microscope Co., Ltd. , http://www.bjusj.com

400Series Stainless Steel Plate

Stainless Steel Sheet,Steel Sheet,Stainless Steel Plate

Yeson International Trading Co., Ltd. , http://www.jssteelsheet.com

The work of adjusting the layout of hazardous chemicals production and storage enterprises in Shanghai has achieved initial results. The reporter learned from the Shanghai Work Safety Conference recently held that last year the city had completed the adjustment of 48 dangerous chemicals companies, including relocation of the eight companies in the Central Link and the Huangpu River Water Conservation Area, to the suburbs. And related industries completed the closing and adjustment of 40 dangerous chemical companies.
In addition, in order to strengthen the safe operation of international metropolises, in 2007 Shanghai also promoted the dynamic joint supervision and control of hazardous chemicals transportation, completed the work of installing 6,000 GPS hazardous chemicals transportation vehicles on-board GPS systems; in accordance with the principle of safety and convenience, access to Shanghai For the 25 ordinary crossings and 12 crossings for dangerous chemicals transport vehicles, prohibition and access signs were set up respectively; in the field of special equipment, more than 1 million cylinders and 1.2 million LPG cylinders were filled in 109 cylinders. The bottle's electronic label identifies the establishment of a gas cylinder registration information management system.
It is reported that this year Shanghai will continue to strengthen safety supervision in key industries, including 10 dangerous goods production and storage enterprises that may cause pollution accidents in the outer ring line and the upper reaches of the Huangpu River, and will implement shutting down and transfer adjustments.

Caustic Soda

Caustic Soda,Caustic Soda Flake,Caustic Soda Pearl

Credit International Co., Ltd. , http://www.tjcausticsoda.com

DuPont Titanium Technologies has successfully reduced its titanium dioxide (titanium dioxide) energy consumption by nearly 30% per pound of product, saving more than 100 million yuan in the process in the event that the price of crude oil per barrel fell below the threshold of 100 US dollars. Dollars. It is expected that since 2001, this business unit has saved energy equivalent to 3 million barrels of oil.
It is expected that DuPont Titanium Technologies has saved energy equivalent to 3 million barrels of oil since 2001. DuPont Titanium Dioxide is the world's largest manufacturer of titanium dioxide (TiO2), a white pigment widely used in coatings, plastics and The paper industry can make products white, bright and opaque.
Rick Olson, vice president and general manager of DuPont Titanium Technologies, said: “There is not a big moment of surprise in this effort. Every factory in the world is exploring any kind of potential energy saving opportunities. This means that every Taiwan motor and each valve consume energy every day, every day. This work is endless."
Some solutions are obvious, such as replacing a motor that has been aged with a new, more efficient motor. Other solutions require more research and improvement.
DuPont also saves energy by inventing new pigment products that require less energy during the manufacturing process. The new grade of titanium dioxide used for coatings is a product introduced in 2007. It replaced the past with a higher level of energy consumption.
Olson said: "By 2015, we expect to be able to produce more efficient products with energy equal to twice the energy per unit of titanium dioxide produced by us in 1991. Saving energy and reducing emissions will help us The world is also conducive to our business. This well-organized effort is part of our existing plant sustainability program and will be incorporated into our plans for a new plant in China."
DuPont has announced plans to open a new, world-class titanium dioxide plant in Dongying, China. The project's total investment is expected to reach 1 billion U.S. dollars. Upon completion of the construction, the plant will become DuPont’s largest wholly-owned project outside the United States. Just like other DuPont titanium dioxide plants, the plant will also use chlorination to produce titanium dioxide. The chlorination method is superior to the past sulfate process in terms of energy efficiency and environmental performance.

for Hilti

Graphite & Products Co., Ltd. , http://www.nbcarbonbrush.com

At present, with the increasing development of LED display industry in China, LED large-screen displays in the streets of major cities gradually increase, people's consumption levels are also growing, LED lighting has gradually applied to the daily life of the family, LED Electronic display not only enhances the image of the city, LED also enriches people's cultural life, in this regard can reflect the LED industry's development speed is so fast, while we enjoy the LED electronic screen brings economic benefits, some have LED electronic display The screen business does not fully understand the LED electronic screen operation and use precautions to lead to shorten the life of LED electronic display screen. Here, senior professional of Aisiwei company explains to us the LED electronic display screen operation and use precautions. To ensure that the led display system safe and normal operation!

First, switch LED electronic display notes:

1 switch sequence:

When opening the screen: first boot, then open the screen.

When closing the screen: turn off the screen first, and then turn off the computer (the first time you turn off the computer, the display screen will not be turned off, which will cause the screen body to appear bright spots. The led burns the lamp and the consequences are serious.)

2. The interval between switching screens should be more than 5 minutes.

3. After the computer enters the engineering control software, it can turn on the electricity.

4, to avoid opening the screen in full white screen state, because at this time the system's maximum inrush current.

5. Avoid opening the screen in an out-of-control state because the system's inrush current is maximum.

A computer does not enter the control software and Other programs;

B computer is not powered;

C Control section power is not turned on.

6. When the ambient temperature is too high or the heat dissipation conditions are not good, the led lighting should be careful not to open the screen for a long time.

7. When one part of the electronic display screen has a very bright line, it is necessary to pay attention to closing the screen in time. It is not appropriate to open the screen for a long time in this state.

8. Frequent display power switch tripping, should promptly check the screen or replace the power switch.

9. Check the tightness of the attachment regularly. If loose, pay attention to adjust in time, re-strengthen or renew the hanger.

10. According to the environment of the large-screen display screen and the control part, insect bites should be avoided, and rodent-proof drugs should be placed when necessary. lED display

Second, the control part of the change, changes in Notes

1. The power line of the computer and the control part is zero, and the fire cannot be reversed. It should be plugged in according to the original position. If there are peripherals, after the connection is complete, test whether the chassis is powered.

2. When controlling equipment such as a mobile computer, check the connection line and the control panel for looseness before powering on.

3. Do not arbitrarily change the position and length of communication lines and flat connection lines.

4. If abnormalities such as short-circuit, tripping, burning, or smoking are found after moving, the power-on test should not be repeated and the problem should be promptly searched.

Third, the use of software operation precautions

1 software backup: WIN2003, WINXP, application programs, software installation programs, databases, etc. It is recommended to use "one-click restore" software, easy to operate.

2 Proficient in installation methods, raw data recovery, and backup.

3 master control parameter settings, basic data preset modifications 4 skilled use of procedures, operations and editing.

5 Regularly check* to delete unrelated data Non-professional staff, do not operate the software system.

ANSI Gate Valve

Knife-gate Valve,Stem Knife-gate Valve,Casting Knife-gate Valve

Baoding Valvula Imp & Exp Trading Co., Ltd. , http://www.hbvalves.com

Everyone has encountered something that can make you feel grateful. On August 2, 2013, the elites of the Direct Sales Center held the "Thanksgiving Have You, Warm Meeting" held at the Regency Hotel Guangzhou. With the opportunity of this conference, the elites say what they want to thank most, share the story of growth at 37 ° love, awaken the gratitude of the elites and rekindle their warmth.

Training Department Manager Yang reviewed the work of the elite happiness smile

Direct center leaders bow to the forefront of the elite

As managers from the bottom of my heart thanks to sales front-line staff, because they, companies can find the real direction of market changes and business opportunities because they and they work hard for the company to contribute to the company's today's glory.

Core Material

Pu Foam Material,Pu Foam Slab,Pu Core Material

Vichen Composite Material Co., Limited , http://www.jsptfefabric.com

Speaking of the after-sales service of the building intercom industry is actually an old-fashioned topic, but although it is often talked about, the result is not satisfactory. On the topic of after-sales maintenance in the building intercom industry, an interview was held with senior leaders including Di Nike, Hua Baian, Guanlin, Hui Ruitong, Roule, etc., and concluded that the equipment maintenance in the building intercom industry is currently facing Several major issues:

A brand more than the agreement between the brands can not communicate

At present, there are many domestic building intercom brands, and there are no less than 300 corporate brands, and the degree of competition can be imagined. The building intercom industry not only has a large number of brands, but also does not have a unified standard agreement. The brand and the brand cannot be compatible with each other. Therefore, in terms of maintenance, each brand can only be responsible for the maintenance of its own brand, resulting in the current confusion. phenomenon.

2. Communication and coordination among property, engineering and manufacturers

Although manufacturers provide products, they are not directly users of the product—end users. The engineering firm is located between the manufacturer and the property. For the user, the engineering company is the representative of the manufacturer. The attitude and construction quality of the project owner directly affects the impression of the household on the brand of the manufacturer. For the manufacturer, the engineering contractor is a window for the user. Through this window, the manufacturer knows the user's needs and feedback from the user. So, the engineering firm plays a key role between the manufacturer and the property.

In addition, in many cases, the tenants are facing the contractor rather than the brand manufacturer. Therefore, when there is a problem with the equipment, the tenants first report to the contractor. Once the problem has not been resolved for a long time, the reputation of the engineering firm will be affected. This has caused the contractor to dare to cooperate with some small brands. Instead, it chooses to cooperate with brand manufacturers with more than five years of qualification, which will directly limit the Brand development space.

Therefore, the manufacturer should handle the relationship with the engineering firm and clarify the responsible party and the problem-implementing party from the beginning, so as to avoid the situation where the problem of the product is not resolved.

Therefore, how to weigh the relationship between the three parties and coordinate well is a powerful guarantee for the smooth development of after-sales maintenance work for building intercom manufacturers.

Equipment manufacturers installed more than three years ago have closed down or the equipment has been discontinued

For some large electronic products, such as home appliances, the after-sale maintenance period will generally be three to five years, although free maintenance may be only one year. Similarly, for building intercom equipment, after-sales maintenance is often listed as an important part of a project's contract.

However, due to the industry reshuffling or changes in the direction of business development, many SMEs have closed down, or the original brand of equipment has been forced to stop production, transformation to other industries, so that the building has been put into use after-sales maintenance of building products Work is not guaranteed. Because the agreements between different brands are incompatible with one another and cannot replace only broken devices with other brands, the products of the entire building can only be replaced in a unified manner, and the wiring installation can be performed again before normal use can be made.

At present, this phenomenon is not uncommon. Many districts have such problems. Although the building intercom system is installed, due to the previous years' installation, equipment problems can no longer be used, but the original brand cannot be found. Manufacturers.

Conclusion

In fact, not only the building intercom industry, the entire post-sale maintenance of the security industry is very serious, security companies should face this industry issues. The author believes that the coordination of the relationship between the manufacturer, the project owner, and the property is certainly important. However, the industry standard is the most direct and effective way to completely solve this problem.

Api 6D Gate Valve

Gate Valve,Electric Gate Valve,Api Gate Valve

Haoxia Trading Co., Ltd. , http://www.jiasongvalve.com

Engine water pump maintenance method

The water pump is one of the important components of the automobile engine cooling system. The function of the water pump is to pressurize the coolant to ensure that it circulates in the cooling system and accelerates the heat dissipation. As a long-term operating device, the water pump will also malfunction during use. How to troubleshoot these failures? Many people will find that such inspections are very complicated and the failures are reported directly. Actually, there are some minor fault owners completely. Can be solved, do not need to spend money. If the water pump fails or is damaged during use, the following inspections and repairs may be made.

1. Inspect the pump body and pulley for wear and damage and replace if necessary. Check whether the water pump shaft is bent, the degree of wear of the journal, and the shaft end thread are damaged. Check whether the blade on the impeller is broken and whether the shaft hole wears seriously. Check the degree of wear of water seals and bakelite washers. Replace them if they exceed the uغير مجاز مي باشدe limits. Check the bearing's wear condition, can use the watch to measure the bearing clearance, if exceed 0.10mm, should replace the new bearing.

2. After the water pump is taken out, it can be decomposed in order. After the decomposition, the parts should be cleaned and checked one by one to see if there are defects such as cracks, damage, and wear. If there are serious defects, they should be replaced.

3. Repair of water seals and seats: If the water seal is grooved, it can be grinded with an emery cloth and it should be replaced if it has worn out; if the water seal seat has rough scratches, it can be repaired with a plane reamer or on a lathe. Replace the new water seal assembly when overhauling.

4. Welding repair is allowed on the pump body with the following damage: length is within 30mm, does not extend into the crack of the bearing seat hole; the flange that engages with the cylinder head has a broken part; the oil seal seat hole is damaged. The bending of the water pump shaft must not exceed 0.05mm, otherwise it should be replaced. Impeller blade damage should be replaced. The water pump shaft hole wear should be replaced or repaired.

5. Check whether the bearing of the water pump rotates flexibly or with abnormal noise. If there is any problem with the bearing, it should be replaced.

6. After the water pump is assembled, rotate it by hand. There is no seizure of the pump shaft and the impeller and the pump housing are not rubbed. Then check the pump displacement. If there is a problem, check the cause and remove it. If the pump fails, the coolant will not reach the corresponding place and its performance will not be effectively exerted, thus affecting the working conditions of the engine. Therefore, the inspection of the water pump must be strengthened

LED Wall Ligthing

LED Wall Ligthing,LED Wall Pack Ligthing,LED Wall Pack Lamp

LED Corn Light Co., Ltd. , http://www.cnoutdoorlight.com

Aluminum&Zinc Kitchen Furniture Knob

Zinc Kitchen Furniture Knob,Zinc Kitchen Furniture Knob,Zinc Kitchen Furniture Knob

Bochuang Hardware Co., Ltd. , http://www.hz-curtain-rod.com

1. What if the camera has no image?

A: First, confirm whether the power of the camera is added. Usually it can be judged by the indicator light. The second is whether the monitor is normal. For example, whether to switch to the corresponding input channel. Third, whether the coaxial cable is normally in compliance with the contact. The fourth is whether the lens aperture is open. If it is for Other reasons, you need to return to the factory for repair.

2.What to do if the camera image is whitish?

A: First of all, check if you are aiming at a place where the light is strong. If it is a manual iris lens, see if the aperture is too large. If it is an auto iris lens, check if the correction value is too low and make the iris open too large. Next, check whether the exposure setting of the camera is correct and whether the speed of the electronic shutter is too slow. If it is for other reasons, you need to return to the factory for repair.

3. What to do if the camera image color cast?

A: Generally, the white balance setting improves the color cast: There are two ways to set the white balance:

A, automatic white balance, continuous mode - this time the white balance setting will be continuously adjusted with the change of the color temperature of the scene, the range is 2800~6000K. This method is most suitable for situations where the color temperature of the scene is constantly changing during shooting, so that the color is natural, but continuous white balance cannot produce the best color effect when there is little or no white in the scene. Button mode - first aim the camera at a white target such as white wall, white paper, and then switch the automatic mode switch from manual to set position, keep it in this position for a few seconds or until the image appears white, in white balance After being executed, the automatic mode switch is switched back to the manual position to lock the white balance setting. At this time, the white balance setting will remain in the camera's memory until the execution is changed again. The range is from 2300 to 10000 K. During this period, this setting will not be lost even if the camera is powered off. Setting the white balance by buttons is the most accurate and reliable, suitable for most applications.

B. Manual white balance. Manual white balance will turn off the automatic white balance. At this time, there are as many as 107 levels for changing the red or blue state of the image. For example, increase or decrease the red level, increase or decrease the blue level. One grade. In addition to time, some cameras have white balance fixed at 3200K (incandescent level) and 5500K (daylight level) and other grade commands.

4. How to choose the camera lens?

Answer: (1) The imaging size of the lens should be consistent with the camera CCD target surface size, as mentioned above, 1/2 inch, 1/3 inch, 1/4 inch and other specifications.

(2) The focal length of the lens and the viewing angle, first according to the distance from the camera to the monitored target, the focal length of the lens is selected, after the lens focal length f is determined, the camera's target surface determines the visual field.

(3) The amount of light passing through the aperture or through-the-lens lens is measured by the ratio of the focal length and the clear aperture of the lens. The mark F is used. Each lens is marked with its maximum F value. The amount of light transmitted is inversely proportional to the square of the F value. The smaller the F value, the larger the aperture. Therefore, whether to use a manual iris or an auto iris lens should be selected based on the degree of light changes in the monitored part.

5. How to calculate the focal length of the lens?

A: Formula calculation: The calculation of the field of view and focal length. The field of view refers to the size of the object being captured. The size of the field of view is determined by the distance from the lens to the object being captured, the focal point of the lens, and the required imaging size. The focal length of the lens, the size of the field of view, and the distance from the lens to the object being taken are calculated as follows; 1, f = wL/W, f = hL/H

f: Lens focal length w: the width of the image (image width of the subject on the ccd target surface)

W: Width of the subject L: Distance from the subject to the lens h: Image height (The subject is in cc

d: Image height on the target surface) Field of view (uptake scene) Height H: Height of the subject
6. What are the common video transmission methods and how much is the transmission distance?

Answer: 1. Coaxial cable (transmission distance 0-600m), 2. Optical fiber (0-20Km or more), 3. Wireless (3G network, or 2G network), 4. Traditional network cable (100m without relay), 5. Twisted pair (0-2400m, divided into active and passive).

7. What are the common video transmission methods and how much is the transmission distance?

A: The angle of infrared light is not consistent with the degree of competition of the lens.

8. What should I do if the speed dome is out of control?

A: 1. Check if the high-speed ball address code is the same as the address code of the control keyboard. 2. Is the baud rate of the communication the same as the control of the keyboard 3. Is the communication protocol the same as the controlled keyboard? 4. Whether the wiring meets the RS485 standard.

9. What is the reason that the network camera cannot display the image?

A: Check whether the power indicator is on first, indicating whether the camera is powered on. 2. If there is a network indicator, see if the indicator is on or flashing. Indicates the network status of the camera. 3. Check whether the client computer network is connected, whether it is in the same subnet as the network camera, and whether it is in the same LAN as the camera. For the computer to provide the basis for the normal connection through the network. 4. Check if the IE control is installed correctly. And allow running controls. 5. The camera aperture is open. It shows that the camera image CCD can normally capture the light that the outside world injects into the lens. 6. The camera color and brightness settings are reasonable.

10. What is the problem with camera image blur?

A: If the camera lens is not focused, you can adjust the back focus of the camera so that the camera image is clear.

Slurry knife gate valve

Slurry Knife Gate Valve,Slurry Knife Valve,Special Knife Gate Valve

Wofly Technology Co., Ltd. , http://www.gd-valve.com