For industrial terms, the 19-inch rack is a server or network frame within an enclosure that is being utilized to be mounted on multiple equipment units. Each of the server rack module contains a front panel that is 19 inches or 482.6 mm wide in specifications. The horizontal measurement then includes some of the edges in the internal space of the rack.
Just last week, there was something that really started bothering me: I beat my boyfriend at chess. I cannot believe it. The first words after my victory was “did I really won? Or you just let me win?” Basically, we have been continuously playing a lot of games recently and I was not given the chance to in in 8 months we are doing it. I lost every game, until this one!
After chess, we have decided to change the game we are playing – Trivial Pursuit. However, he has mopped the game board with me but it is totally okay. I have to forgive him because I won at chess anyway. But I got a realization. All the months I have been losing to him, he thought me of different strategies on how I can win the game. He taught me the rules and the pitfalls, he was totally pointing out what are the better move choices. This has guided me into doing the right strategy. I started thinking since I love learning, it has enabled me to win at chess!
With this in mind, let us start looking at how some technology efficiently works.
One sample product we can take a look at is the keyfob small electronics enclosure. You can see these type of enclosures almost everywhere. They are used as car keys, calculators, small televisions and so much more. There is a rubber keypad installed on it with a paring conductive contact on its back. Once the button is successfully pressed, the conductive contact successfully meets the board. It now started to send an electronics signal that completes the whole process of completing a specific task that was successfully assigned to the circuit.
To further illustrate this example – let us use a calculator. When you press a button labeled as #1, the screen sows a 1. When you add the plus sign after to it then when you press the 3 and the equals button, it will give you a number 4.
This also works as the same way a keyless entry remote works. When you press the button that was labeled unlocked, it manages to activate the circuit installed on the board. It now starte to send a wireless signal going to the system’s receiver. It was located in the vehicle, and now it prompts the electric locks to be opened. This was a keyless entry.
Back during my childhood, before my sister totally though that it would be really fun and exciting if we would take on a ride at the fair in the neighborhood. They call it the Salt and Pepper shakers. To further illustrate the ride, there are two existing arms on the side. At the end of each there is an enclosed big bug that keeps the rider totally locked inside. These arms then are carefully rotated in the opposite directions. Once the arm reaches the top of the ride rotation, the buggy together with the people riding will go total upside down.
At this point from now on, the person operating the right totally thought that it was really funny that an 8 year old child like me was really scared for her dear life and she started screaming like someone was murdered. That is the very reason why I am really afraid of heights. And because of this experience, I am very intrigued by the various fields of study that determines if it is really the nature that makes us who we are – nature vs. nurture.
Before this trip to the fun fair, I did not have very much experience with extreme heights: I was not a tree climber at all. I did not use the roof or utilize it for me to sneak out of the house and I have not any experience climbing the ladders either. I guess that’s is because of my developed fear of heights when I as a kid. I had been really scared for my life and I guess the experience made me to fear heights.
Because of this, a product has reminded me of this fearful experience. Maybe because of its psychophysiology.
The very efficient and unique ATLASense™ AR7000 series does a semi-custom platform that fives a good and rapid prototyping solution for companies. This satisfy a large and broad physiological and behavioral monitoring needs for your products. This high performing workhorse offers a different, physical, and physiological and behavioral human interacts with a lot of broad selection of the best front-end sensors.
The international clients of this platform has started to apply the different platofrms in different fields of use. This also includes the diagnostics, biological therapy, telemedicine and as well as psychophysiology. What is more to this product is that it has a very wide range of different configurations that can be easily found in Atlas Engineering’s website: www.atlas-arl.com
Just recently, I instantly decided to get rid of my unneeded furniture placed in the basement. It was already old, out of style and it so happens that my cats are living down in the basement. The furniture was completely covered in my cat’s fur because my two white cats loves to sit on the (then blue) white couch. Anyone who will see my furniture will tell me that it looks completely gross. And it is.
And because of presence of fleas, I decided to move the chairs by myself. I cannot wait for my boyfriend to arrive even if he is just 20 minutes away from my house. I almost got near the carpet but for once I decided to drag it upstairs. I just don’t have the energy to turn it to then haul it out open to the door.
When I carefully looked at the chair, I hefted the back of the chair onto the stair to make it leveled up to the front end whilst stepping up to the next level of the stairs. I said to myself, “one step at time.” I just patiently keeps on repeating this mantra as I slowly inch my way up to the stairs just balancing the two legs of the chair. When I finally got to the landing of the chair, I had to make the turn. I just hefted the back left leg of the chair onto the landing platform just in front of the right leg on the front end. While the chair is recently balanced like this on opposing legs, I just have to push it all the way to make a safe landing.
With this in mind, why should my impatience about furniture hauling matter? This is because without the ability to balance the chair on two opposing legs, I should have not succeeded. I recently got this idea from an enclosure making company that just launched their hand-held plastic enclosures. The unique enclosure design shows how it sandwiches a PCB between two screw towers.
There are customers who have asked how this works and they show a doubtful face that says “How does this keep the board from flexing?” The place of the board on the enclosure, then insert (and tighten) the screws into the screw holes on the enclosure. Which is now threaded unto the screw towers. This is primarily because the enclosure is so slim, that it leaves no room for the board to easily flex or twist like that inside the enclosure.
The screws can easily hold down the opposing corners of the PCB board. Thus making it just level and stable once the enclosure is successfully screwed together. This also allows the end user to use the space that surrounds the PCB without the need for the mounting attachments of bosses made in most sizes. However, because of the extra length of the KT-70, the mounting bosses are finally included for the additional stability.
We have already explored how the personality if the newly weds can be comparable to the material characteristics of the electronics. We also have been able to identify its importance regardless of the end use of the electronics equipment. Also, there are certain characterisitics that are very important to make sure that the final product can stay as crisp since the day the customer decided to purchase it.
There is also one additional important characteristics for plastic electronics enclosure for it to be solvent-resistant. There are several types of different enclosures that can offer bonding as the only way to assemble the final product. While we can carefully strive to not spill the solvents (or anything in that matter), these situations really happen. There was a leak in the solvent packaging, a loose lid, or perhaps there are products that are sent down on a table that comes with an accidental drop of solvent.
The list is just full of endless possibilities. The use of a solvent-resistant ink just helps in the prevention of the unlikely or unwanted events to happen that can eventually lead to serious and long-term problems.
As you can see, there are several and many specifications just for any ink type the user wants to use to customize their electronics enclosure. These posts only deal with a partial list. The customers have been keen on emailing and commenting but there many more characteristics that should be taken in careful consideration.
The point here is there are companies that uses the permanent ink for both of the plastic enclosure both on silk screening and pad printing. The ink that was used for some of the plastic enclosures surely meets the needed specifications to permanently brand the plastic enclsoures. In addition to this, the gloss in the ink also adds the style to the enclsoures.
In return, the gloss intensifies the ink, so that it can print resulting to a very bright appearance. Rather than the dull, chalky finish that we often see in this style of printing. Getting a quote about permanently print on the enclosure is just simple and it can bring down the printing cost lesser than you think. It is best to contact the customer service for further classifications.
Ink used for customizing plastic enclosures can be compared to the charmingly rustic wedding I just went to recently. With this in mind, I wonder how the characteristics of the newly weds (bride and groom) can be used as an example to describe the characteristics of ink used in printing on electronics enclosure. What are the characteristics that are needed to be carefully considered?
We have already looked at some of the potential issues that can potentially damage the branding of the product. While there are some of the issues that were not as big basing on the end use, it still begs to differ: what are the cost of this to be worth the time and effort?
I guess your initial answer is “No”. And you are just right. The correct answer is to use a permanent ink that is just light-and weather resistant. With this, we have already discussed the possible damages that can be caused by light and what its effect on the graphics. You want an ink that can give you a good chemical and alcohol resistance to.
With this in mind, you do not want to think about someone being intentional on damaging the project. However, these types of situations do happen. The branding on the product is just part of the advertising. Somebody with a cotton boll and a vengeance should not be able to destroy the hard work.
Let us take a look at another example:
If you are out in the field after installing the products in the customers’ homes, under a steamy summer day with humidity levels reaching 90F, it is inevitable that your body temperature will also rise. You are already hot and you wipe your brow with your fingers. The next thing you will do is to pick up the next product that you would like to be installed. If you had used the electronic enclosure ink after the perspiration – and oil/grease-resistant ink, you have nothing to worry about.
Once the ink used to print on the plastic enclosure does not have these properities, there is a tendency that there will be parts of the printing that can be discolored when touched. The worse case scenario is if you remove the parts (of all) of the lettering, logo, or design printing from the enclosure, it will leave a less-than-perfect finish.
Protecting the enclosure from its end use is just as important as other parts of the design. The design engineer should be sure about using the right materials in order to meet the demands of the customers. What ink characteristics do you look for other materials in the enclosure?
Some of the enclosure manufacturing company utilizes UL recognized material for their enclosures. To define it, the UL frame serve as the property of material used for enclosures. Needless to say, that the materials used for making enclosures are not the same in nature and it is the reason why it doesn’t not have the same rating. Any design engineers should be ready to recognize the differences in ratings to have a better understanding why the numbers must vary. To better explain this differences, let’s look at the following:
For UL rating, the UL-94 is the Standard for Safety of Flammability of Plastic Materials for Parts in Devices and Appliances testing. This can only mean that every product that has UL-94 rated material has been proven its flammability characteristics. This means that this material can be used for the suitability of the material in a given operation. Once the end unit is acceptable to be utilized for any type of product use, it should also undergo testing for that specific product. Ul-94 can determine how the material will react given the set of conditions but it cannot exactly pinpoint the exact characteristics of the components using the end product and just by relying on this rating.
With this in mind, there are two different testing methods: the horizontal and vertical. The HB rating means that the product was tested using the burn or HB test. The type of flame that was used and applied for this product testing was founded to burn more slowly compared given a specific amount of time. The time it takes for the flame to burn the product also depends on the thickness of the material.
The ratings that ends with V2,V2, or V0 only means that the quality of material was gaged and tested using the vertical position. The ratings also indicates that the tested material after it undergo certain testing eventually self-extinguished because of the removed burning source.
Not only metal sheets are utilized in creating electronic enclosure, also plastic. With this in mind, materials react differently to certain temperature especially plastic. The ABS plastic’s melting point is estimated to be 176 degrees F (80 degrees C). This can only mean one thing for design engineers. Plastic enclosure made from this material cannot have prolonged exposure to 176 degrees because it will begin to lose it shape. Once the ABS is exposed to very hot temperatures, the enclosure will begin to soften and eventually lose it shape. If the company left it in a place where the high temperature exists, it will eventually have a baked enclosure.
Also, once the enclosure is exposed to this kind of temperature and there is something on top of it, it can also cause the enclosure to collapse very easily. Not in an instant but it will hasten the collapsing process. The enclosure will eventually settle into La Brea Tar Pits. If the enclosure is utilized in a project test, it will result to a failed one.
Luckily for the design engineer, he or she can choose a more appropriate material for enclosures that can withstand the high temperature and can retain their structure even if exposed to high heat. These materials can be found inside the interiors of a vehicle, or in processing plants where the temperature is high. With this in mind, we recommend using the enclosures that are formed from Nylon or Noryl. These plastic can maintain their form even if exposed in high temperature environments. Comparing to ABS, Noryl is durable in terms of temperature. You can approach the enclosure manufacturing company if this material is available for your company. For sure, if the material is available they will help you in terms of design.
There is also another option for plastic material, this is called polycarbonate. This is a waterproof materials and can be used for outdoor applications. This is considered to be flame-retardant. Meaning the material maintains the integrity or shape of the enclosure and it can prevent melting even if exposed to higher temperatures. The high-temperature materials are more expensive than its counterparts because the capability and the property of these materials are increased. Make sure to first determine where the enclosure will be used so that the design engineer can effectively tell what material should be used in certain type of application. If the company will use the enclosure in low-heat environments, then an ABS option is best suited for this.
The dance lessons continue and I’m learning more than I thought I would. Really, I always assumed it was one or two moves and then just add in some flair, like dips or a fancy foot move. But no, there are STEPS to these dances. And one must know them in a specific order, from start to finish, so that as part of a couple, he or she can lead or be led. Blows my mind really. So are there other processes in life that we must follow exact steps in order to correctly complete the process? Why, I’m glad you asked. Yes, yes there are.
It is surprising to know that are obvious similarities of Flamenco to an enclosure. Actually almost all form of dances is similar to the process of building an enclosure. Dancing is not akin to just forming the steps and just adding extra poses to make it brilliant. The dancer should know how to give the steps and dance gracefully by order. There is no brilliant thing that is done overnight. There are crucial steps that are needed to take in order to lead the dance and be able to finish it gracefully. This is just really amazing when you think that in also in life, you need to take slow processes for you to master the exact steps and be ready to make and complete what it is needed to be done.
With this in mind, I would like to help you understand this by illustrating how a plastic enclosure’s lid is secured by following these steps. For your reference, here are the steps below:
1. First, arrange the screws on the cover and seal them by threading them through the cover holes. There are different holes for different types of screws. For the enclosure cover, it accommodates WA, WC, & WP series. These are considered to be captive screws that is primarily made for stainless stell.
2. After the first step is done, this is the time to have the cover placed over the base or the bottom half of the enclosure. Then arrange the screws or align on the cover over the corresponding holes on the base.
3. Have the screws loosely assembled in the cover in sequence until the screws are already finger tight.
4. Have the screws tighten up to a torque of 8-inch pounds. To achieve a better accuracy, use a torque screw.
5. To make sure that the sealed joint is tight enough and the gasket covered is properly aligned, inspect everything. It should be aligned with the lip in the body.
For the 4-hole covers, the engineer should have the middle of the cover be squeezed tight against the base of the enclosure. There are times that when doing this on a larger enclosure you will hear a snap noise. Do not worry because this is a normal scenario and it just indicates that the sealing lip in the base is now properly seated and aligned with the cover gasket.
Today, almost all general service lamp sockets (about 75%) are estimated to have longer life compact fluorescent and being occupied by it together with the general service LED bulbs. In summary, the new government regulation is designed to target less energy savings compared to the forecast of Department of Energy have forecasted way back few years ago. This is because there is a significant move seen on the market. This trend is estimated to continue beyond 2020.
In line with the bulbs not being a general service lamp, LBNL have included in their report that there were almost the same problem when it comes to data. The energy consumption, as well as the savings, is now measured by using the estimated number of lamps installed in the sockets. The Department of Energy utilizes an algorithm that will help them arrive at a number estimate and will not only rely on lamp shipments. The data should only include assumptions regarding the light bulb’s life and its longevity when it is installed in the socket before it can be replaced.
However, there is a direct relationship between the shipments of light bulb and the number of installed bulbs. The greater the number of shipments for a specific lamp type, it is safe to conclude that there will be more units of light bulb are going to be installed. In contrary to this, the fact is true if the event happened otherwise. The number figures Department of Energy arrived at for the incandescent lamp reflectors shipments exceeded the manufacturer’s expectation. The LBNL’s estimates for the installed bases used for incandescent reflector lamps are over exaggerated.
The Department of Energy’s data estimations regarding the shipments of the reflector lamps are either flat or growing slightly. But in reality, they were actually falling. Last 2018, NEMA the shipments for incandescent reflector lamp were expected to be less than a third of what DOE has estimated few years back. Partly the reason for this decline is the Department of Energy’s increase in energy efficiency standards for the incandescent reflector lamps (PAR and R.) These lamps required the infrared technology and made the cost of these lamps to go higher what is expected. Thus, the LED reflector lamps are priced in a competitive way compare to the price of the LED reflector lamps. The lamps started to fall.
If there were as many incandescent reflector lamps in the installed base of sockets consuming electricity that LBNL cited, NEMA members would be selling a lot more incandescent reflector lamps, and they are not. Again, American consumers, retailers, and manufacturers have beaten DOE to the regulatory punch. The regulation will achieve less energy savings than DOE could have forecasted because the market has already made a more significant move. And this trend will only continue to 2020 and beyond.
This fact is also true with other concerning speciality incandescent lamps – decorative and tubular lamps, for example – Department of Energy tried to illegally lump in the general service lamp category. Just recently, in its ruling, the Department of Energy has started to acknowledge that the data NEMA shared regarding the sale of these lamps have been declining.