LED light bars are a truly popular vehicle accessory, particularly among the younger generation. They believe that the police speakers make their vehicle look cool and, well, that&rsquos the aim of younger folks to seem very cool. But, is there a price to pay for looking &ldquocool&rdquo? There are basically so many reasons why you shouldn&rsquot install LED lights in your car, at all ages, including :

LED light bars and LED single lights are a distraction for the driver of the vehicle with the lights installed , as well as for other drivers on the road.

Depending on the kind of LED light you have, other drivers can easily become bewildered and believe that your car is an emergency automobile of some kind.

They are illegal in many states, so if you install them and turn them on, you could be in major difficulty, facing fines and even jail time.

There have been many occasions when an automobile accident was caused by a person having LED lights installed in their auto. It&rsquos a meaningless event to happen because it may have been simply avoided had the driver not installed the light bars or had turned them off.

Of course, that is not to assert that there aren&rsquot legitimized reasons for installing LED lights and light bars in your car. If you are a clandestine law officer, you will not have the LED lights permanently installed on top of your unmarked police car. As an alternative you&rsquoll have a special LED light or light bar you can take out and put on the dash if the requirement arise for you to switch on the LED lights. This is also an option for low income towns where they cannot afford tangible police automobiles for their officials as an alternative the officers will use donated automobiles or their own autos and portable LED lights and light bars throughout the course of their duty .

If you really must install an LED light or light bar in your auto, be safe and don&rsquot turn it on while you are driving. Sure, it could be a cool accessory while you are hanging out in a carpark or having a charming moment in the middle of nowhere, but it is nothing but a distraction on the road. Enjoy your LED light manufacturer with your friends, but keep it confined to instances when the auto is standing still.

LED strip lights can be considered the perfect solution for a variety of lighting purposes that range from decorations to room lighting. The main characteristics of LED strip lights include its nature of producing pure light color, its softness, thin body and fewer glares. The application of the LED technology has become quite widespread in the recent past. The reasons for this are quite obvious. There are several dozens of advantages of using LED strip lights for your lighting requirements. For one thing, they do not require a large amount of energy for their functioning. Hence, you wont be getting an overlarge electricity bill.

Lower power consumption means lower heat generation hence LED strip lights can be used for decorating your aquariums without having to worry anything about the temperature of the water. Moreover, since they work on voltages as low as 12V DC, you wont have to worry about little children accidently stepping on them or grabbing them by their hand. These are safe and do not pose any safety issues to children or adults.

If you are thinking of lighting up your rooms and make them a bit livelier, then you can try replacing your existing conventional CFLs with LED tube lights. These lighting systems are designed and manufactured with the latest LED lighting techniques. Hence, they are highly energy efficient and can be widely used for both commercial and residential lighting purposes.

It has been found that led light bulbs produce an output of light the same as that of CFLs while consuming just 50% of energy that CFLs do. This means that youll be saving over 50% of your electricity bills by replacing your current CFLs with LED tube lights. Moreover, LED tube lights can last for as long as 50,000 hours, which is ten times the average lifespan of a CFL.

As has been discussed previously, industrial sensor manufacturer must be able to withstand some pretty punishing conditions.  Although industrial sensors incorporate some of the same high-end technology found in, say, the blu-ray disc player in your home theater system, it&rsquos not likely that your BD player is going to be subjected to punishing shock, vibration, and general abuse as do the sensors in your industrial machinery.  To be sure, your blu-ray player doesn&rsquot need to be protected against hydraulic fluid or moisture ingress.  Which brings me to the topic of this entry:  Ingress protection for industrial sensors.

In order to be viable in typical industrial environments, industrial sensors must often be able to tolerate getting wet, sometimes really, really wet.  Fortunately, most sensors do indeed incorporate some degree of ingress protection by design.  And it&rsquos pretty easy to choose the proper sensor for a particular set of expected conditions thanks to a method of rating method outlined under international standard IEC 60529.  This standard takes the somewhat vague term &ldquowaterproof&rdquo and provides specific details as to just how waterproof an electronic device is.

An IP (Ingress Protection) rating for an electronic device typically consists of the letters IP, followed by a two-digit number.  The first digit identifies the protection against intrusion of solid objects (dirt, hand tools, your fingers, etc.):

Most industrial sensors are rated for intrusion protection to IP5_ or IP6_.

The second digit in the IP-rating, which is the one we&rsquore most concerned with, identifies the level of protection again moisture ingress:

While an IP65 rating is fairly common, the trend is towards sensors with a more substantial IP67 or IP68 rating.

While the IP67 rating is fairly straightforward, the IP68 rating seems to cause a lot of confusion.  The reason for this is that the IP68 rating is subject to conditions specified by the manufacturer.  For equipment to be rated to IP68, it must be suitable for continuous immersion underwater at a depth specified by the manufacturer.  Essentially, IP68 can be taken to mean that the equipment is protected at least as well as IP67, but how much better must be specified by the manufacturer of the equipment.

Another IP rating of interest is the IP69K rating.  The IP69K rating, detailed in German DIN standard 40050-9, provides specific requirements (water temperature, pressure, flow rate, etc.) for equipment designed to withstand high-pressure, high-temperature washdown.

Some examples of IP69K-rated sensors include transducers and inductive sensors.

Power Supply from cpbay B2B Marketplace

A cable laying methods

Cable laying the following: directly buried installation wear pipe laying, shallow groove laying, laying of cable trench and laying of cable tunnels, overhead installation in several ways has advantages and disadvantages, generally considered the urban development planning, the existing buildings density cable line length laying article and its environment impact. Technically, the way of cable tunnels and cable trench laying methods to facilitate the cable construction, maintenance and repair. In some developed countries, cities, urban planning and construction, we have considered the utility tunnels. Practice has proved that utility tunnels running well, and greatly reduces the number of duplication of investment and the phenomenon of repeated excavation of the road, but the huge initial investment, building materials consumption funds in the country, due to a variety of factors, this way of laying is minimal . In contrast, the laying of buried laying and shallow groove is laying an economic model, the buried cable is the most economical and widely Department of electricity laying methods, it is used in suburban and vehicular traffic less frequent. But not conducive to the maintenance and repair of the cable in the event of cable failure, even when using the tester to measure the point of failure, but also to reopen the cable trench, extremely inconvenient. The choice of cable laying, with the actual situation, the vision of development based on project conditions, environmental characteristics, the cable model and the number of factors, determined in accordance with the reasonable requirements and technical and economic principles to meet operational reliability, ease of maintenance.

Second, the selection of cable

Commonly used wire cable manufacturers with oil-immersed cable, PVC insulated cables, XLPE cables, etc., depending on the occasion, but also extends to different types of special cables. With the continuous improvement of production technology and production processes, the cross-linked polyethylene cable has become the most widely used cable products, cable selection should be based on the use of different environments and conditions, combined with the specific circumstances, to choose to minimize the through a variety of tube side rail, road and communication cables such as direct burial and shallow trench laying methods should be considered a plus steel armor cable.

Third, the choice of cable cross-sectional area

Cable cross-sectional area of ​​choice, related to investment in the number of line losses and voltage quality of life of the cable. If you choose the small cross-sectional area, will lead to voltage quality, the line loss is too large, then make the initial investment is too high. Should be based on load forecasting results, development plans, choose a suitable cross-sectional area, so that the power cable to the cable core temperature to meet the maximum operating current requirements and voltage drop requirements, the maximum short-circuit current under the action of thermal stability requirements. Load forecasting difficulty of the work is high, low accuracy, select the cable cross-sectional area, but also meet the city in low voltage distribution network transformation technology guide "and" urban electricity network planning guide "requirements.

Selection of power cables in the three-phase four-wire low-voltage grid, but also consider the zero line cross-sectional area of ​​choice, in public low-voltage network, due to user factors, the three-phase load balancing is difficult to control, improve voltage quality and reduce line losses, the zero-line cross-sectional area should be the same as the phase line cross-sectional area.

Fourth, the cable network and cable network automation

With the constant promotion and use of the wire cable supplies in the distribution network, distribution network can be divided into the cable network and overhead networks (including overhead, cable hybrid network). On the implementation of low voltage distribution network in the "Urban transformation guidelines and supplementary opinions" put forward specific requirements on the cable distribution network automation. Therefore, in the distribution network LAN using a cable network, in accordance with the requirements of distribution automation, new technology, new equipment, qualified to be considered automatic pilot conditions are not ripe, but also in supporting the selection of equipment, consider there is ample room to lay the foundation for the realization of the automation products.

1, the eddy current problem is caused by high current power cable

Power cables in the construction, steel frame, steel protection tube, laying cable card and overhead, all the steel (iron) and closed-loop formed around the power cables, are likely to form a vortex. In particular, high current power cable systems, eddy current. The construction of the power cable must take measures so that the cable can not be formed around the steel (iron) and closed-loop, to prevent the cable caused by the eddy current phenomenon.

2, the mechanical damage caused by the turn of the power cable

Power cable diameter, the more difficult, transport, laying power cables on the turning radius requirements are more stringent. Power cables in the construction of the turning angle is too large, may make the inside a conductor by mechanical damage, mechanical damage was cable insulation strength decreased, until the failure, the construction found once the first cable fault, when the production of the first cable, three cables head length, and connect to the device due to topographical constraints in phase cable head is rather long and become arched roots damaged the discharge of the cable head. To take measures in the connection of the equipment, appropriate to shorten the length of the in-phase cable head connection, three-phase cable head are not subject to external forces, the Practice has proved that the effect is good. Thus, the cable construction process to minimize the torque cable by cable turn and margin to stay cable, the cable in a natural bent, put an end to the phenomenon of internal mechanical damage.

3, the power cable moisture

Operating experience has shown that, most of the low voltage power cable fault for wire cable manufacturers Joints and terminations, the first failure, the middle connector and terminal head failure due to poor sealing, moisture intrusion caused by the dielectric strength decline, while the medium and low voltage power cables the use of dendritic power supply network, a large number of cable terminal head, so the head of the cable terminal and the middle connector plugging sealed off to ensure safe and reliable operation of cable one of the measures.

4, medium and low voltage power cable ground

In public in the low-voltage power cables online, three-phase load is not equal, therefore, if the use of the metal sheath of the cable, we must consider the grounding of the metal sheath, and to ensure that at any point in the metal casing of non-ground at the normal induced voltage greater than power supply 100V. In my opinion, medium and low voltage cable network cable joints shall be provided with a grounding pole (net), and reliable grounding of the thermostat metal sheath.

Where can you find a thermostat that not only acknowledges your presence by turning itself on, but continues to do its work of controlling heating and cooling even when you are gone? Nest, of course, a home thermostat we introduced you to last year. And to make the versatile Nest even more useful, the company is offering a 2.0 software upgrade for Nest Learning thermostat.

The upgrade includes an expanded energy history view&mdashthis time a full 10 days&mdashavailable as a Web application and via both Android and iPhone smartphones. Nesters will also have access to Airwave, a new and exclusive energy-saving feature which sucks every last breath of Infrared Thermometer cold air from your air conditioning system by shutting off the compressor prematurely but letting the fan continue running.

Most important to non-techies, the Nest will update itself if connected to Wi-Fi. All you have to do is update the Nest mobile app on your smartphone or iPad. Nest, the first learning thermostat on the market, takes cues from your actions beginning on day one, by noting and recording how warm (or cool) you want your home to be at specific times of day. No other &ldquosmart meter&rdquo or programmable thermostat does that.

Spendy, at $250, but well worth it, the Nest also monitors room occupancy. For example, if you have zoned heating, or even if you go away for a day or two without programming desirable room temperatures, clever Nest sets the ambient temperature slightly higher (for air-conditioning) or lower (during heating season) to conserve energy, and does so without a single prompt. And, as Nest&rsquos makers point out, cutting back as little as 100 kilowatt-hours a month will recoup Nest&rsquos cost in two years. Now, if only the relay company can find a way to resolve the patent infringement suit brought by Honeywell in February.

MissionFairmount Automation's mission is to become the leading provider of survivable process control and automation products for harsh environments. We aim to be the dominant automation equipment OEM for military applications and to consistently gain market share in the worldwide industrial controls market. We intend to follow a path of financially responsible growth that delivers steadily increasing profits and maximizes shareholder value. We will achieve these goals by delivering technologically superior products that minimize our end-user's overall ownership costs and by fostering a work environment that rewards innovation, hard work, and entrepreneurshipHistory.

Dr. Andres Lebaudy and Mr. Gary Cane founded Fairmount Automation in 1996. They began work on the Company's first general-purpose product, the FAC-2000, with the emphasis on providing a rugged multi-loop process controller.

The main thrust for this effort was to satisfy a need for a versatile controller for automation on combat vessels in the U.S. Navy. In 1997, the company submitted a fully functional prototype of the FAC-2000 to the U.S. Navy to undergo a battery of MIL-SPEC (military specification) tests. Upon passing all the requisite military tests and gaining approval for shipboard use, the Department of Defense awarded Fairmount Automation with a number of contracts to deliver FAC-2000 controllers.Engineers from the Naval Surface Warfare Center's Propulsion and Steam Machinery Controls Division used the FAC-2000 controllers to successfully overhaul a vast array of navy shipboard applications including: waste heat boilers on Spruance Class Destroyers, distilling plants on Ticonderoga Class Guided Missiles Cruisers, secondary steam machinery controls in the nuclear propulsion plants on Nimitz Class Aircraft Carriers, and propulsion boiler controls on Kennedy and Kitty Hawk Class Aircraft Carriers, Sacramento Class Combat Support ships, and Tarawa and Wasp Class Amphibious Attack ships.During the early 2000s, the Company introduced a new line of programmable automation controllers and began to offer control system integration and installation support services.

The company pioneered the use of distributed control technology in damage control applications and became the preferred supplier of smart-valve based automatic damage control solutions. As the Company's reputation and stature in the Navy community grew, it was rewarded with larger contracts with increasing scope and responsibility. Both its Chameleon product line and engineering design expertise have been highly sought in the development of control systems on new ship platforms such as CVN-78 aircraft carrier, DDG-1000 destroyer, and LCS-1 littoral combat ship.

In 2007, Fairmount automation manufacturer was acquired by the Colfax Corporation. Today, the Company continues to serve its customers with the same zeal, enthusiasm, and entrepreneurial spirit that has been a defining characteristic of its success since its founding in 1996.

Cpbay -   B2B Trade Marketplace for Solar, LED, Optoelectronics,  wire cable manufacturers , Infrared Thermometer  Security and much more industrial field. Offer trade leads and product information to global buyers and suppliers who focus their business on industrial field.

A switch mode power supply, also known as Switching Power Supply supplier , or sometimes simply as a switcher is an electronic power supply that uses a switching regulator to convert electric power from one form to another. By using a switching regulator, this process is highly efficient. Like other types of power supplies, the main role of a switch mode power supply is to transfer power from a source such as an electrical power grid to a load such as a personal computer. In addition, whilst converting power, other factors such as voltage and current characteristics are also transferred.

A switch mode power supply provides a regulated output voltage which is usually different from the input voltage. It is different compared to a linear power supply, as the pass transistor of a switching mode power supply switches very quickly between full on and full off states.

This quick switch minimises wasted energy. Thus switch mode power supplies are regarded as being more efficient compared to linear power supplies &ndash and this is the chief advantage of using switch mode power supplies. Linear power supplies work by dissipating the excess voltage in order to regulate the output, leading to a loss of energy. A linear regulator will regulate its output voltage or current by dissipating the excess electric power in the form of heat. A switch mode power supply regulates output voltage or current by switching ideal storage elements such as inductors and capacitors into and out of different electrical configurations. Switching regulators can be used to replace linear regulators when higher efficiency, smaller size or lighter weights are required.

As stated above, the main advantage of using switch mode power supplies is that this method is more efficient and dissipates less power.

Other advantages include that this power supply supplier is a smaller size and has a lighter weight, and generate less heat due to its higher efficiency. By having a smaller sized power supply that weighs less, this means that shipping costs are less and they can be distributed easily. Unfortunately, switch mode power supplies have their disadvantages as well. Switch mode power supplies are more complicated than their linear counterparts and their switching currents can cause electrical noise problems if they are not carefully suppressed. power supply manufacturer can generate high amplitude, high frequency energy that need to be blocked to avoid electromagnetic interference, ripple voltages and harmonic frequencies.

from:http://power.ezinemark.com/all-you-need-to-know-about-switch-mode-power-supplies-7d32f72ce389.html

Before we delve too far into the subject, not all sensors have enough electronics on them to be configurable. For example, if a basic pressure transducer is capable of adjusting anything, then it would only be the zero and span. However, for digital pressure gauges, many things can be configured from units of measure to trip points.

Purpose Built

The pros and cons of a purpose built sensor distributor are worth discussing. The main benefit is that it&rsquos a perfect fit for your application. Common applications where programming and parameters are constant are a good home for purpose built sensors. OEMs that commission a custom sensor for their machine or process often use purpose built sensors, with a mash-up of features to suit their needs.

These sensors are typically less expensive because they consist of fewer components and either simple or no software.

However, for end users who cannot find a sensor that fits their application just right, a sensor built for someone else can be difficult. In addition, end users and OEMs alike that prefer one sensor for a few similar but individual applications will have difficulty with an inflexible instrument.

Field Configurable

A sensor that can be programmed for different applications in the field is known as field configurable. These smart sensors are capable of accurate measurement in a variety of applications. The advantage is versatility. For example, a single sensor can &ldquospare&rdquo many applications. If configured with a PC, the appropriate configuration files for each application can be stored and downloaded to the sensor quickly.

In addition, output signals and trips can be adjusted in the field to adapt to changing process conditions, or to fine tune the process for optimum performance.

In general, a field configurable sensor supplier allows a single instrument to adjust to change, rather than buying another purpose built sensor that may or may not be a good fit.

These sensors are typically more expensive because of the added electronics and programming software. In applications where conditions are fairly constant and many sensors are needed, it can be a pain to worry about programming at all &ndash so a purpose built sensor may be the better choice.

In the end, as with anything else, it is the application that determines what sensor should be used. However, the ability to adjust to changing needs with the same sensor is a bit of a safety net, and worth consideration.

We make both types of sensor dealer . Let us know if you need any help in the selection process. With so many options, it can feel like hacking through a jungle. Let our experts help guide the way.

from:http://www.apgsensors.com/about-us/blog/purpose-built-vs-field-configurableaca

Cpbay -   B2B Trade Marketplace for Solar, LED, Optoelectronics,  Infrared Thermometer, Security and much more industrial field. Offer trade leads and product information to global buyers and suppliers who focus their business on industrial field.

As countries around the world are actively promoting LED lighting to replace conventional lighting plan, as well as the electricity is climbing, the introduction of relevant policies of the situation, LED lighting gradually come to the forefront of the stage, which, LED lighting, power management will also be play a very important role in the next period of time, the lED lighting market is the rapid rise is expected to drive the power supply sales to reach four billion units by 2016, with a total of up to $ 10 billion.

LED lighting source is still in its infancy, has just begun getting into the pace of development, manufacturers face challenges in power electronics technical expertise, and thus open the doors of opportunity for power supply manufacturers. The new LED lighting power requirements, depending on power rating (Power Rating), the LED or the number of LED light string and use the environment design factors. These design requirements for LED lighting manufacturers need to hire professionals or power supply supplier to strengthen the power electronics professional and technical.

It is worth noting that some large-scale LED lighting manufacturers such as Philips (Philips), through subsidiaries or the acquisition of power supply manufacturers to build technical capacity; This makes some power supply manufacturers are relegated to being acquired situation, the opportunities of some of the power supply by these vertically integrated company eating.

However, only the power supply supplier still have their market niche. The industry believes that, with the production line of the power supply LED lighting manufacturer, only to seize the market in a simple design, low-cost and high demand products, such as the LED to replace the light source; high-power applications in the power supply design is more complex hand, the power supply outsourcing more cost-effective. Therefore, we can predict that the power supply manufacturers will have more than half of the market share in 2016.