Gauge type by Industry

There are several ways to choose vacuum gauges.  We find that in some industries there are specific types of vacuum instrumentation that are typical.  We share our experience with you to help guide your choice of vacuum gauge controller and thermocouple vacuum gauge tube.

Refrigeration Vacuum gauge controller and thermocouple vacuum gauge tube

The refrigeration industry measures vacuum in microns, and wants a rugged dependable gauge to measure the evacuation of a refrigeration system.  One useful feature for a vacuum gauge used in refrigeration evacuation is the ability to read up to atmosphere.  A vacuum measuring instrument that measures all the way up to atmosphere enables the user to quickly troubleshoot basic probles such as a leaky system or open valve. The refrigeration industry often prefers our Digivac Model 200 because of it's convenient size and it's rugged design.  Our Vacuum gauge comes with everything you need to start measuring vacuum in your refrigeration system. 

Neon Industry Vacuum measurement and Neon Tube Thermometer

The Neon industry can benefit from 3 products we provide: 2 Vacuum gauges and a Thermometer. 

1. In Neon applications you need one gauge that confirms that you have evacuated the Neon tube; that is if you have just air in the tube at a vacuum of about 7 microns.  For this application we recommend a Digivac Model 45 Battery operated Vacuum Gauge with a Fredericks thermocouple vacuum gauge tube.  This vacuum gauge combined with the thermocouple vacuum gauge tube has the quality of being very durable and immune to the flashback exacerbated by the very high voltage necessary to drive the bombarding current and the corrosive environment.
2. Next we recommend a Digivac Neon Thermometer that will enable you to accurately measure the Neon tube, avoiding the need to "guess" at what temperature you are at.  Our unique ultra fast thermocouple probe allows you to easily attach to the neon tube and allows you to follow manufacturers temperature recommendations exactly during both the evacuation and fill process.
3. Last, we recommend a Digivac Model 100LED760  which enables you to accurately measure the filling pressure of the neon and argon you are putting back in the tube.  This gauge needs to read very accurately at 27 Torr, and this gauge reads from the micron readings all the way up to 760 Torr (atmosphere.)

An advantage of having battery powered instrumentation during the evacuation process (products 1 and 2 above)  is to avoid the possibility of the high voltage finding it's way through the instruments to ground.  Having battery powered instrumentation avoids this path to ground and increases the longevity of your vacuum instrumentation.

For a quick overview on Neon Processing, click on Neon at Wikipedia.

Cryogenic Industry Vacuum Gauge Controller

In the Cryogenic industry, we find that hastings vacuum gauge thermocouple tubes are often found permanently mounted in cryogenic vessels.  Often, it might make sense to have a battery operated Vacuum Gauge that enables you to walk along a cryogenic vessel, and measure the vacuum at that point.  The range of interest is in the 10mTorr range.  We have a variety of gauges that enable you to measure vacuum with hastings tubes, and our most popular products for this application is the battery operated Model 100 Hast Batt for battery power, and the Model DVG-6 for the panel mount AC version. 

Pharmaceutical industry Vacuum Gauge controller and Vacuum controller

We find that many in the pharmaceutical industry use vacuum gauges, vacuum controllers and vacuum sensors to measure their system vacuum in Torr or mTorr.  The two popular vacuum instruments that we see our pharmaceutical customers choosing is the Model 200 as a vacuum gauge and a vacuum transmitter, and also a Model 450 vacuum controller which maintains the vacuum of a flask or closed sysem in the Torr range.  For readings required in the Torr range, we see our pharmaceutical customers choosing our Model 100LED760 .

Semiconductor manufacturing industry Vacuum Gauge controller and Vacuum level controller

We find that many in the semiconductor industry use vacuum gauges, vacuum controllers and vacuum sensors to measure their systems under vacuum in Torr.  The two popular vacuum instruments that we see our pharmaceutical customers choosing is the Model 100LED760 as a vacuum gauge and a vacuum transmitter, and also a Model 450 vacuum controller which maintains the vacuum of a flask or closed system in the Torr range.