Electric Chain Hoists – Choose The Right One For Your Industry

Electric chain hoists are used in industry and related areas to lift heavy objects, equipment, or machinery. By using electric chain hoists, the task is done faster and easily with less risk involved. They are much easier and sophisticated to use than manual chain hoists. Moreover, they are more convenient and can achieve the task more efficiently than manual chain-hoists. Electric chain hoists are available in a variety of sizes and for a variety of lifting equipment depending upon the load to be lifted.

 

These days, it is not hard for one to find the hoists that you require for your type of industry. These hoists are now manufactured by reputed manufacturers in Taiwan as well as abroad. Many online dealers also stock reputed brands, so you need to know the exact specifications that you require for lifting the required loads.

 

Nowadays, hoists have a variety of features and come with a range of price tags. Depending upon the type of the hoist you require, it is essential you are away of the safety parameters and whether the hoist will stand up to the rigorous operational requirements. Therefore, you should be knowledgeable about the operations requirements of the hoist you propose you wish to purchase. At the same time, you should be aware of the quality standards that are applicable to electric chain hoists. Do not go for a cheaper hoist if you are in a position to purchase a more expensive one. A cheap hoist may leave out the safety and quality parameters essential under various rules, laws, and regulations.

 

A manual chain can lift up a lighter load, but an electric chain hoist can be used to lift heavier loads. Nevertheless, they should not be used for lifting loads beyond their lifting capacity. Therefore, it is always advisable to check the rated capacity of the electric chain hoist before actually buying it. At times, there are circumstances which require continuous operation of the hoist, so be sure that the operators do not exceed the rated capacity. For example, if the rated capacity is 30 minutes on and 30 minutes off, you cannot run the hoist more than this capacity.

 

A torque limiting device on the hoist will prevent accidental or intentional overload. Also check for safety features like upper and lower limit switches and low voltage controls. A stop button can take care of emergency situations. A variety of speed capacities are available so you can make the right choice while purchasing a hoist. There will be a number of manufacturers providing you with the same types or hoists.

 

They are also available in different speed capacities and speeds to be able to endure a variety of handling procedures. Since there are many manufacturers offering various types of hoists, you need to know exactly what you are going to buy. Therefore, while buying an electric chain hoist, do not buy the ones that seem cheap or spurious for you, or do not even buy the ones that violate safety norms. Train your staff adequately on the use of electric chain hoists and always read the operation manual before installation and operation.

 

For quality electric chain hoists for use in various industries, try to visit Cheng Day: www.chengday.com

 

With 44-year experience of electric chain hoist manufacturing in Taiwan, Cheng Day exactly realizes what customers need and offers custom-made design. They consistently improve and upgrades products quality. Moreover, Cheng Day has patents for parts in electric chain hoists; they also create new models every year to extend usage.

 

Cheng Day electric chain hoists are proudly manufactured in Taiwan. More details, please feel free to contact Cheng Day Machinery Works Co., Ltd.

 

 

Article Source: http://EzineArticles.com/5110086

GSM Antennas and Their Uses

What Is A GSM Antenna?

An antenna is an electrical device which converts electrical currents into radio waves and vice versa. It is an essential part of a radio allowing a radio frequency (RF) signal generated by a radio device to be sent or received on a particular frequency or frequencies. A GSM antenna can operate on 824-894 MHz, 890-960MHz, 1710-1880MHz and 1850-1990MHz. Often, antennas can operate on more than one frequency range. In this case they are often referred to as dual band (2 frequencies), tri band (3 frequencies) or quad band (4 frequencies).

 

Why Do I Need An Antenna?

The GSM antenna receives or transmits the RF signal – without it the radio system will not work. Antennas are used in all systems using wireless equipment such as key fobs for cars, garage door entry systems, RFID tags, baby monitors and mobile phones.

 

How Does A GSM Antenna Work?

An antenna is made using a conductive strip or wire usually made of metal. This allows an electrical current to pass through which creates a magnetic current. Depending on the frequency, this will create a wavelength which is a certain size. The lower the frequency the longer the wavelength and this will make a GSM signal transmits further.

 

What Should I Look For In An Antenna?

Antennas come in different shapes and sizes and depend on how they are being used. Firstly however, they radiate in 2 ways. The first is the more common – OMNI directional antenna. This allows a 360° radiation pattern so as to transmit and receive in any direction in a circular pattern. Directional antennas transmit and receive RF signals in a limited direction and need to point in the general direction of the other radio.

 

As examples, an antenna on a walkie talkie would be OMNI directional, giving an all-round coverage. A TV antenna mounted on the roof of a house is a Yagi antenna which is directional – pointing in the direction of a TV transmitting power. This allows a concentration of signal to be sent or received.

 

How Many Types Of GSM Antennas Are There?

 

Once an OMNI directional or directional antenna has been determined, there are 6 generally accepted styles of GSM antenna. These depend on the use.

 

  • Embedded antennas are used for when the antenna is being fitted inside equipment.
  • Through hole mount antennas are used in permanent installations and fit via a mounting bolt.
  • Magnetic mount antennas are usually reserved for temporary installations or in evaluation kits.
  • Direct connect antennas screw directly to GSM modems or the back of GSM terminal equipment. External or base station mount GSM antennas often fit on walls and are used in remote locations
  • For wireless telemetry or alarm panel installations.
  • Adhesive mount antennas stick onto glass or other nonmetallic surfaces.

 

Where to Find Ideal GSM Antenna Manufacturer?

The manufacturer that I recommend to you is Evercom Communication Technology Co., Ltd...

 

Evercom is a leading supplier of mobile antennas company throughout the world. Established in 1993, it specializes in design and manufacture of WIFI, MIMO, GPS, UMTS, DVBT, UHF / VHF, GSM antenna, CB antenna mount, and accessories etc.

 

Evercom offers innovative design, quality manufacturing and reliable performance. If you need more information about GSM antenna or other antennas, try to visit the website of Evercom: www.evercomtech.com to obtain the details you need.

 

 

Article Source: http://EzineArticles.com/6838580

Ceramic Capacitors and Reliable Capacitors Manufacturer

The ceramic capacitor is available in many versions including leaded disc ceramic capacitors, surface mount multilayer ceramic capacitors, MLCCs etc.

 

Ceramic capacitors are one of the most widely used forms of capacitor used in electronics equipment these days.

 

Ceramic capacitors have also been used for many years, being found in valve or tube circuits dating from the 1930s.

 

Today ceramic capacitors area available in a variety of formats ranging from leaded components to surface mount technology, SMT varieties. As leaded versions disc ceramic capacitors are widely available, and as SMT devices, multilayer ceramic capacitors or MLCCs are available in all the common formats. As such these ceramic capacitors are used in virtually every type of electronics equipment.

 

The actual performance of the ceramic capacitors is highly dependent upon the dielectric used. Using modern dielectrics, very high values are available, but it is also necessary to check parameters such as the temperature coefficient and tolerance. Different levels of performance are often governed by the dielectric used, and therefore it is necessary to choose the type of dielectric in the ceramic capacitor.

 

Ceramic capacitors range in value from figures as low as a few Pico farads to around 0.1 microfarads. In view of the wide range and suitability for RF applications they are used for coupling and decoupling applications in particular. Here they are by far the most commonly used type being cheap and reliable and the loss factor is particularly low although this is dependent on the exact dielectric in use.

 

Basics of Ceramic Capacitor

Ceramic capacitors are the workhorses of the capacitor world these days. Ceramic capacitors are used in millions as a result of a combination of their cost and performance. There is a wide variety of dielectrics that can be used as described below, but as the name of the ceramic capacitor suggests, they are all ceramic in nature.

 

In order to ensure that sufficient levels of capacitance can be obtained within a single capacitor package, ceramic capacitors, like types of capacitor have multiple layers. This increases the level of capacitance to enable the required values of capacitance to be achieved.

 

Ceramic capacitors are available now in three main types although other styles are available:

 

  • Leaded disc ceramic capacitors for through hole mounting which are resin coated
  • Surface mount multilayer ceramic capacitors
  • Specialist microwave bare leadless disc ceramic capacitors that are designed to sit in a slot in the PCB and are soldered in place

 

Although it is possible to obtain other types of ceramic capacitor, these are the main types that can be found today. Of these the surface mount variety is used in the greatest quantities by far because of the manufacturing methods used these days for electronic equipment.

 

Capacitors Supplying Expert

Zonkas Electronic specializes in manufacture of Ceramic Capacitors which are applied to various industries. The ceramic capacitor is a capacitor constructed of alternating layers of metal and ceramic, with the ceramic material acting as the dielectric. The company has well-equipped manufacturing facilities that are operated by a team of experts. The strong team comprises of engineers, technicians, marketing professionals, quality analysts and customer services.

 

If you want to learn more information about ceramic capacitor manufacturer and capacitors, try to check out Zonkas’s website: www.zonkas-cap.com to obtain the details you need.

 

 

Article Source: http://www.radio-electronics.com/info/data/capacitor/ceramic-capacitor.php

UMTS Antenna and GSM Antenna Supplying Expert – Evercom Communication

Established in 1993, Evercom Communication specializes in manufacturing GSM antenna and UMTS antenna. Furthermore, kinds of other antennas also can be found on their website.

 

The comprehensive ranges of GSM antenna, including roof antenna, NMO antenna, magnetic antenna, mini magnetic antenna, portable antenna, trucker antenna, marine antenna, on-glass antenna, patch antenna, window clip antenna, wall mount antenna, yagi antenna and base station antenna. If you have any interest, you can try to check out Evercom’s product page.

 

Let’s get to the point. Evercom’s dynamic research and development team offers unrivaled expertise that enables Evercom to provide wide frequency range of standard, customized and tailor-made UMTS antennas to meet all kinds of customers’ requirements. They credit their success to the continuous efforts into the innovation and dedicated customer service. In addition, Evercom maintains a speedy and flexible process of design, production, packaging and delivery in order to meet the diverse demands.

 

Would you want to learn more about GSM antenna and UMTS antenna, welcome to visit Evercom’s website: www.evercomtech.com and feel free to send inquiries to them.

 

 

Q&A:

What is UMTS?

UMTS is one of the Third Generation (3G) mobile systems being developed within the ITU’s IMT-2000 framework. It is a realization of a new generation of broadband multi-media mobile telecommunications technology.

 

– From http://www.umtsworld.com/umts/faq.htm

 

 

Evercom Communication Technology Co., Ltd.

No.108, Jiesin St., Taoyuan Dist., Taoyuan City 330, Taiwan (R.O.C.)

TEL: 886-3-376-5678

FAX: 886-3-376-5319

E-mail: service@evercomtech.com / gtevercomtech@gmail.com

Technologies of Proximity Card Reader

Passive Proximity Readers

 

Nearly all building access cards based on proximity are passive. There are roughly 125 million cards used for accessing secured buildings today.

 

Passive technology implies there is no battery or power source required in the card. The proximity reader constantly transmits a low level fixed RF signal that transmits energy to the card. When the card is held at a certain distance from the reader, the RF signal is absorbed by a small coil inside the card and powers the card’s chip which contains a unique identification code. Once powered, the card transmits the code to the reader.

 

The advantages of proximity over other technologies are numerous: no moving parts, no mechanical wear, no slots, no read heads to maintain. The reader can be concealed inside walls or special enclosures and, even when the reader is surface mounted, it has no openings to jam or tamper. The card is the most secure and practically impossible to duplicate. Cards can usually be read through a purse or wallet and through most other nonmetallic materials. Card and reader orientation is not critical.

 

Reading ranges depend primarily on the reader. The larger the reading range, the larger the reader’s concealed antenna and hence, the size of the reader. There is a great variety of proximity readers designed for different environments including vandal-resistant mullion mount, smaller decor style and integrated keypad/reader units.

 

Active Proximity Readers

 

Active proximity technology implies there is a battery within the card. Since the card has power the range is greatly expanded (3-15 feet vs. 1-5 inches). The RF signal is low level (<1mw) but the frequency used is much higher. Applications tend to be uniquely applied, although recently the application in computer access control is more prevalent.

 

Orientation of the card and reader become important. Since the RF frequency is much higher several other effects may be noticed such as exact distance due to the fact that the signal bounces off of other object.

 

Active technology is useful where a hands-free (as opposed to contactless) data exchange is required. Since the range is much longer, it is generally not very practical for door access (except gated parking lots) since walking past the door may unlock the room. The typical application is to detect the presence of a person at a computer and allow access without intervention. Equally important is to automatically lock the computer when a person steps away.

 

Read range is adjustable between 3 to 15 feet.

 

Active cards are generally thicker (1/5 inch) as a result of the replaceable battery requirement

 

Presence Detectors

 

Sonar technology is a relatively new entrant as a tool for security with PCs.

 

In computer security there are two primary components to consider:

 

  1. Unlocking the ‘locked’ workstation, and
  2. Locking the workstation after the logon user leaves the station.

 

The first component generally gets the most attention and array of solutions while the second is generally handled by a time-out screen saver or company mandated policy. Both solutions for ‘2’ above are fraught with exposure issues.

 

The use of sonar technology is a means for detecting the presence or absence of an individual, and performing a specific operation when there is a change. It is important to understand there is no real identification of the user performed with this technology.

 

When a user steps away from an authorized session, the sonar device can detect this occurrence and send the appropriate keystrokes to secure the workstation (log off or lock). This improves solutions associated with policy since the device never forgets to lock. It is also a great improvement over a time-out in that this occurs immediately as opposed to a parameter set by the minute(s).

 

Likewise when the user steps up to a locked workstation, the appropriate keystrokes can be set to call up the logon dialog.

 

This technology can be a great aid for other forms of authentication such as biometrics.

 

Pongee Industries Co., Ltd. is the company of specializing in proximity reader, writer, and programmer. They also provide kinds of high quality access controllers for customers to select. Need more information, welcome to visit the Pongee’s website and feel free to contact with them.

 

 

Article Source: https://www.rfideas.com/support/learning-center/proximity-reader-technologies

Taiwan UAV Manufacturing Specialist – Carbon-Based Technology Inc.

Proved Core Values of Unmanned Systems in Fields of Anti-Disaster and Geographic Spatial Application.

 

UAVs Companies?

 

Carbon-Based Technology Inc. was established in March 2007 and devoted in complete system design, integration, manufacturing, and global marketing of Unmanned Aircraft System.

 

Carbon-Based Technology not only can offer high reliability Unmanned System as a platform for “Intelligence Gathering”, but also can offer total solutions for various aspects. Through this Hi-tech and Hi-reliability UAS platform which is 100% researched & developed in-house, it can integrate with techniques of data processing and analyzing for relative study fields such as GIS and Remote Sensing, Team Carbon-based can offer clients with totally intact and useful intelligence on the ground as well as in the air. Especially for fields of anti-disaster and geographic spatial application, they have assisted clients from various professions to acquire priceless feedbacks. This also has proved core values of Unmanned Systems of Carbon-Based Technology!

 

Below, I am going to introduce one of products in Carbon-Based UAVs to you – Real Time Surveillance.
Avian-S
Real-time Surveillance

Real-time Surveillance

Avian-S Real-time Surveillance

Avian-S unmanned aerial systems featuring the advantages of long endurance, hi-stability, turn-key operation, and payloads that are plug-and-play modular designed. Any individual with less or even no aviation experience can easily accomplish any mission.

 

Avian is an Unmanned Aircraft System (UAS) featuring compact design, multi-purpose, and modularized payloads which are interchangeable on-site according to the mission requirements.

 

If you are interested in learning further details about real time surveillance, welcome to check out product pages of Carbon-Based. And feel free to send inquiry or contact with them for more information.

 

Watch Video Below for More Details!

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Carbon-Based Technology Inc.

Carbon-Based Technology Inc.

3F, No.30, Keya Road, Daya District, Taichung City, 42881 Taiwan

Tel: +886-4-2565-8558

Fax: +866-4-2565-8559

E-mail: info@uaver.com

PTC Thermistors: Positive Temperature Coefficient

The positive temperature coefficient, PTC thermistor has two types: silistor & switching PTC have very different characteristics.

 

As the name indicates a positive temperature coefficient, PTC thermistor has a response in which the resistance rises with increasing temperature.

 

There are two types of PTC thermistor which have very different characteristics, one showing a linear increase, whilst the other shows a sudden change in resistance.

 

PTC thermistor outline

 

PTC thermistors can be divided into two types according to their structure and the materials used. The two types of PTC thermistor have very different characteristics:

 

  • Switching PTC thermistor:

This form of PTC thermistor is used in heaters, sensors and specialized versions are also used as resettable fuses. Switching type NTC thermistors have a highly non-linear curve. The resistance at first falls slightly with increasing temperature, and then at a critical temperature the resistance increases dramatically, thereby acting virtually as a switch. This makes it ideal in many protection devices.

  • Silistor:

The silistor PTC thermistor uses a semiconductor as its base material and it is characterized by a linear characteristic and as a result, the silistor is used in temperature sensors. The silistor PTC thermistor is generally manufactured from doped silicon, the level of doping determining the exact characteristics.

 

Switching PTC thermistor basics

 

As the switching PTC thermistor is very widely used form, it warrants further explanation as it has an unusual characteristic.

 

Switching PTC thermistors are typically fabricated from polycrystalline materials including barium carbonate or titanium oxide with added materials including tantalum, silica, or manganese, etc.

 

The materials are mixed and ground to fine powders and finally compressed into the required shapes before being sintered. Contacts are then added and the thermistor is encapsulated.

 

The characteristic of the switching PTC thermistor shows that the device has a highly non-linear characteristic. As the temperature increases, the resistance first decreases, then rising slightly before it reaches a critical temperature, TC. At the critical temperature the resistance increases sharply for any increase in temperature, before finally leveling off and falling slightly.

 

A similar type of device is known as a Polymer PTC. These devices consist of a plastic element into which carbon grains are embedded. When cool, the carbon is able to conduct electricity, but as the temperature increase the carbon grains move further away as a result of expansion and conduction falls rapidly. In this way the device acts like a switch in the same way as the more traditional PTC thermistors.

 

PTC thermistor operational modes

 

There are two main ways in which switching PTC thermistors are generally used.

 

  • Self-heating mode:

When used in the self-heating mode, current is passed through the thermistor, often in series with the item being controlled. As it heats up as a result of the current, it reaches a point where the critical temperature is reached and the resistance increases significantly. In this way it operates in a self-heating mode and can be used as a safety cut-out or regulator.

 

  • Sensor mode:

In this mode, a minimum amount of current is passed through the device and PTC thermistor senses the surrounding temperature. Keeping the current to a minimum ensures the self-heating effect is negligible and only the surrounding temperature affects the device. As the surroundings heat the device it may reach its critical temperature at which point the resistance will significantly increase.

 

Switching PTC thermistor applications

 

Switching thermistors are a very useful form of electronic component. It can perform functions with a single component that would require far more complex circuitry should any other technique be used.

 

  • In-rush protection:

Some electrical items like motors and transformers have a large surge of current at switch on. This gives rise to very high peaks of current which can cause spikes on the power line, or cause damage in some instances. PTC thermistors can be used to reduce the level of the inrush current and thereby prevent the spikes or damage occurring.

 

  • Overcurrent protection:

In this application, the PTC thermistor is placed in series with the load and uses the self-heating effect. The current taken under normal conditions should enable the thermistor to operate in its flat resistance curve area. However if an over-current condition arises, then the thermistor will carry more current and the temperature will rise more causing it to rise beyond the critical temperature when the resistance will rise significantly causing the current to drop.

 

PTC thermistor circuit symbol

 

It is sometimes necessary to indicate the type of thermistor being used on a circuit diagram. Accordingly the IEC have a special PTC thermistor circuit symbol that can be used.

 

As seen the circuit symbol utilizes the characters +t° to give an indication of the positive temperature coefficient.

 

Positive temperature coefficient, PTC thermistors are used in many electronic circuits and for a variety of functions. It is essential to check that the correct type is selected for any given circuit to ensure that its characteristic meets the requirements.

 

Zonkas is the experienced and reliable manufacturer of specializing in capacitor, inductor, and transformer. If you are still interested in PTC thermistors, welcome to visit the website of Zonkas.

 

 

Article Source: https://www.electronics-notes.com/articles/electronic_components/resistors/thermistor-ptc-positive-temperature-coefficient.php

Scope Of RFID Systems In Security Measures

What is RFID?

 

Radio-frequency identification device is a technology that retrieves the status and presence of a thing to which it is attached to remotely. These devices will track the objects automatically and sends the embedded information to the processors.

 

Typical components of RFID system

 

An RFID system contains an RFID tag, RFID reader, RFID antenna, and RFID package.

 

RFID tag is attached to the item that needs to be tracked and identified.

 

RFID antenna will detect the RFID tag when it comes in range.

 

RFID reader reads the RFID tags and authenticates its presence.

 

RFID package contains the server and software and transmits the information to all other applications.

 

Application of RFID systems

 

To simplify, RFID systems do the same function as of a BAR-CODES, but when it comes to applications they are widely spread as RFID systems doesn’t need to maintain contact with the scanners as in case of BAR-CODE. High Frequency RFID systems doesn’t necessarily to be appear in the line of sight, especially such are applied for livestock tracking, Missile tracking, automobile tracking through assembly lines and most importantly in case of vehicle tracking.

 

Security potential

 

Increasing security measures through CCTV cameras has already outdated, the latest technology implies to the usage of RFID readers wherever the security is needed along with authentication.

 

They can be installed in a library, home, and elsewhere domestically to secure the important files, books, and expensive things, so that even when they are found missing they can be easily detected with the help of local servers that are giving location information.

 

They can also be placed in a vehicle, thanks to their non-contact readable characteristic feature as the vehicles can be tracked along the route as they can use the location provided by the nearest GSM signal boosting towers and thus one can keep notice of their vehicles.

 

The size of the smallest developed RFID is 0.05mm × 0.05mm size and the average size would be around 3mm x 3mm. As we go cheaper the size will be increased consistently. Their dimensions make them invisible to see which a plus point in terms of security measures is.

 

Evercom Communication Technology Co., Ltd. is the professional company of specializing in kinds of antennas. If you are interested in learning more details about RFID antenna and other antennas, welcome to visit Evercom’s website to see what antennas they can offer you.

 

 

Article Source: http://EzineArticles.com/8431202

What Is a Proximity Reader?

If you are in the process of updating your home’s or business’s security system or if you never had such a system and you are planning to invest in one, there are probably a lot of industry terms you don’t understand very well. That is why, in this article, we are going to talk about two important parts of any security access system, the proximity card and the proximity reader.

 

Proximity cards, also referred to as prox cards, are different than the magnetic stripe cards, because they do not need to be inserted into the reader device to grant access in the secured area. We say “grant access” because the majority of proximity cards and proximity readers are used as a part of home or business security system. Other uses include library cards, contactless payment systems or in public transit fare. Proximity cards are practical due to the fact that they can easily be read through a wallet or a purse.

 

There are two main types of proximity cards: passive and active. Passive prox cards have a limited range and are widely used to grant access in office buildings. Active cards, also called vicinity cards, have a greater range (150 meters), due to the fact that they use and internal lithium battery. They can be used to easily access courtyards from inside of a vehicle or from automated toll collection.

 

Now, in case you were wondering “What is a Proximity Reader?” they are devices that can store details about the identity of the cards holders, granting them access to otherwise restricted areas. This system is similar to the “chip and PIN” bank cards, with the difference that the proximity reader grants access using radio frequencies and does not need actual insertion of the card. Also, they offer more security to their holders, due to the fact that they are harder to copy. Another great advantage of these readers is the fact that they are quite sturdy and do not need any maintenance.

 

Another term you might encounter when browsing for this type of access system in “Contactless Smart Card”, which is basically the same thing, with the difference that they use advanced methods of data encryption and authentication, meaning that they offer a higher level of security. Besides this general information, there are various technologies that are used in the manufacture of proximity cards and readers.

 

If you are planning to invest in such a system, you must know that the prices are very different from one product to another. For example, the price for a single card ranges from $2 to $200, while for the proximity reader you can pay from $100 to $400.

 

Before making any purchase, we advise you to ask the advice of an experienced security technician, just to make sure that you choose the right system for your needs. The good news is that the majority of shops, even online ones, have an assistant which can help you make the right decision.

 

Pongee Industries Co., Ltd. is the manufacturer of proximity reader. If you are looking for the best proximity reader, don’t miss Pongee’s website, we can offer clients kinds of high quality products. Contact with Pongee to obtain further product information!

 

 

Article Source: http://EzineArticles.com/8665232

Difference between Manual Thermostats and Electrical Thermostats

A thermostat is a temperature–sensitive device that turns HVAC systems on and off when the temperature of an environment reaches a preset level. Essentially, it turns on the air conditioning when it gets too warm, or the heating when it gets too chilly. Thermostats control the workings of comfort systems by directing energy to the appropriate system when needed. When selecting a thermostat, property owners can either go for simple manual thermostats or sophisticated electronic thermostats that provide improved functionality and highly efficient operations. Thanks to the easy to understand packaging and universal compatibility, choosing a thermostat is easy.

 

Systems that Use a Thermostat

Single–stage heating systems have one electrical or gas heating device, which may consist of a heater or an AC device as well. Most units that use natural gas provide single–stage heating. Usually, a single–stage thermostat should have room for three wires if the system handles heating only. However, if the system handles heating and cooling, the thermostat will have to accommodate five wires or less.

 

Multi–stage systems have a standard electrical or gas heating device as well as an emergency and/or auxiliary heating device. The emergency or auxiliary heating kicks in when temperatures drop faster than the standard heater can handle, or if the standard heater fails. Line voltage systems, on the other hand, use direct current. Homeowners should choose line voltage thermostats that can handle additional conducted power.

 

Difference between Manual and Programmable Electrical Thermostats

 

Electromechanical or annual thermostats are the traditional mercury units that have internal coils to contract and expand in response to changes in temperature. They are becoming obsolete because of two main reasons:

 

  • Products containing mercury are banned or restricted in most states
  • Programmable thermostats are more accurate and sensitive to temperature changes

 

However, manual thermostats are still popular due to their ease of use, low cost, and the familiarity of their controls.

 

Digital manual thermostats use an electronic sensor to register temperature changes in an environment and then compare those changes to the preset settings. If there is a difference, the thermostat sends a warning to the cooling or heating system that immediate action is required. However, users still have to physically adjust the settings to their preferred level.

 

Programmable electrical thermostats are an upgrade from the manual thermostats. In addition to saving energy costs, they allow homeowners to program their preferred temperature settings into the unit’s memory, along with the time of day they would like the changes to occur.

 

For most homes, a pre–programmed electrical thermostat does not need any adjustment. Homeowners simply need to install it and they are ready. When determining the right thermostat, homeowners should consider the flexibility and functionality they need from day to day.

 

Alpha Brass electrical thermostats are manufactured and calibrated with precision to provide accurate temperature points. These thermostats are snap-acting and the temperature is controlled by signal interrupting the gas flow to the burner. If you need further details about our electrical thermostats, welcome to browse our website or contact with Alpha Brass directly!

 

 

Article Source: http://cphac.com/blog/difference-manual-thermostats-electrical-thermostats