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by Vacuubrand
Fine Vacuum Control
Many important research and industrial processes require vacuum in what is referred to as the ”fine vacuum” range, which is between 0.1 and 0.001 Torr. In a prior post, we talked about the fact that the Pirani style gauge is often the best…
by Vacuubrand
Vacuum Pump Sizing - Evacuating a Chamber
We’ve previously talked about some of the tools we’ve made available to help select the right vacuum pump for your work.  Our pump selection guide is a great choice if you have a strong sense of your operating parameters.  And for drying…
by Vacuubrand
Advanced Vacuum Control
Our most recent post addressed the benefits of proportional-only vacuum process control.  Though this approach is well suited to many processes, in some cases more accurate (or precise) control of the pressure level is necessary.  Under such circumstances,…
by Vacuubrand
Proportional (2 Point) Vacuum Control
In our prior post, we talked about using variants of classic PID algorithm in order to control vacuum processes.  In the simplest form, the PID control loop can be reduced to a P-only, or 2-point, algorithm.  For example, by using a PLC or other control…
by Vacuubrand
Approaches to Vacuum Control
Establishing good control over vacuum processes has numerous benefits, such as helping to improve process yields, achieve more repeatable results, and reduce process times.  And there are several options for controlling vacuum processes to achieve these…
by Vacuubrand
Operating Cost Benefits of Oil-Free Vacuum – Part 2
In part 1 of this white paper, we reviewed the general advantages of using dry, chemical-resistant diaphragm pumps for process scale-up applications.  In part 2, we will delve into the process of configuring the mini-plant in order to realize the benefits…
by Vacuubrand
Operating Cost Benefits of Oil-Free Vacuum - Part 1
Introduction Historically, mini-plants have utilized oil-sealed rotary vane vacuum pumps as a vacuum source because they provide relatively high flow rates and because they can reach relatively deep vacuum levels, such as 10-3 mbar. The same can be said…
by Vacuubrand
Vacuum Measurement – Pirani Gauges
Pirani gauges are a group of indirect measuring pressure gauges which measure the thermal conductivity of the gas sample.  Pirani gauges are typically used in the fine vacuum range (1 torr – 10-3 torr), as this is the range where they achieve…
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