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Application Review

There are literally hundreds of industrial applications for vacuum instruments and related sensors. As a leader in vacuum measurement and control technology, Televac will bring you thought provoking educational material, describing many of the applications to which our products are being used in a wide variety of applications. We welcome the opportunity for our customers to submit their own unique information to be published in the Televac Applications Review.

Matheson TriGas Monitors Their Delivery Systems with Televac 2A Sensors and VacuGuard Instruments

Vacuum Jacketed Pipeline Measurement

In order to transport cryogenic gases over distances between storage vessels and point of use, the piping that contains the gases is suspended within an annulus that is reduced in pressure in order to maintain a thermal barrier to the ambient temperature. These containments are usually referred to as vacuum jacketed piping systems. Mechanical vacuum pumps maintain the low pressure in the annulus between the product-carrying pipe and the external containment.
Vacuum sensors are installed at periodic locations to monitor the annulus pressure.

Televac’s 2A and Miniature 2A sensors have been specified for many years by commercial producers of cryogenic gas handling equipment, their customers who produce cryogenic gases and the industrial and government users who consume the gases.

The equipment engineering and maintenance personnel who operate and repair these delivery systems typically use a Televac instrument to power and take data from the 2A thermocouple sensor.

A typical thermal processing system, equipped with a Televac MM200

Thermal Processing Systems

Many of the high performance metal products that consumers and industry use have been processed through some form of reduced pressure thermal-based method. Some typical examples are heat treating and nitriding to harden the surface, annealing to eliminate stresses that have built up during previous processing or brazing to join component pieces into an otherwise difficult-to-manufacture assembly.

The reduced pressures at which these processes take place are critically important with respect to the quality of the product being produced. An inaccurate measurement that allows the process to occur at pressures too great or too little could result in product losses that can add up to tens of thousands of dollars per batch. Additionally, gauge systems that fail prematurely or are inherently unreliable can and will reduce the plant’s productivity.

Televac has an enviable track record in supplying accurate, robust and highly reliable vacuum measurement systems to both thermal process system manufacturers, rebuilders and their customers. Our multiple channel MM200 modular instrument system is the preferred platform for most new equipment manufacturers and is specified by many of the largest thermal process users. Its capability to operate as many as 12 sensors means it can handle the most complex installations.

Televac instruments are an integral part of many particle accelerator programs

Particle Physics – Accelerators

Many of the technical achievements of the last fifty years have been the result of basic research in the very structure of matter. Particle accelerators have been instrumental in providing researchers with a versatile tool by which to investigate and modify materials, find cures for human disease and learn more about the world around us.

Particle accelerators and their associated storage rings operate at ultra high vacuum. The success or failure of experiments taking place in these devices depend in large measure upon the accuracy and stability of the vacuum environment. Measurement of this environment plays a critical role in ensuring a successful outcome to the experiment.

Major national laboratories and universities who operate particle accelerators specify and depend upon Televac’s instruments and sensors for reliable measurement of the ultra-high vacuum environment. More than 300 MM200 instruments are successfully meeting needs of America’s leading physicists year after year.

Darly Custom Technology Optical Coater

Thin Film Deposition

An amazing number of products require vacuum deposited thin films in order to function and/or provide it with the proper visual properties. Examples of film characteristics include its electrical, lubricating, optical or wetting properties.
Thin films can be created from organic as well as inorganic materials. Nearly any material can be prepared to receive a deposited thin film.

A few examples of products that have used thin film deposition during their processing include:

Automotive - taillight reflectors, mirrors, exterior and interior trim
Drill bits – hardened coatings
Electronic enclosures–coatings to eliminate static and stray emissions
Eyeglasses – antireflective coatings
Semiconductor devices – insulator and conductor paths
Window glass – energy efficient coatings

Televac’s console and remote instruments are used in a staggering array of these applications.

Commercial & Residential Lighting benefits from Televac

lllumination Products Manufacture

Virtually every commercial and residential lighting product is manufactured in a vacuum environment in order to ensure maximum product lifetime. Naturally, traditional incandescent lamps operate in a vacuum environment, but other lighting products such as fluorescent and vapor lamps use vacuum to ensure that a clean and oxygen free environment exists before the lamps are backfilled with the working gas.

Televac’s sensors and instruments are essential to the lampmaking industry because they are ruggedly dependable, highly reliable, and more cost effective than other manufacturers’ products.

Commercial & Residential refrigeration systems operate longer courtesy of Televac

Air Conditioning & Refrigeration Manufacture

Today’s energy efficient air conditioning and refrigeration systems depend upon compressors that will operate dependably for many years. In manufacturing these subsystems, a vacuum environment is created before the refrigerant gas can be sealed into the product. An erroneous vacuum measurement would mean that the compressor would contain a mixture of refrigerant and air…resulting in inefficient operation and a likelihood of premature failure.

Manufacturers depend upon Televac sensors and instruments to ensure accurate, repeatable, and reliable vacuum measurements.