Pharmaceutical

Below you will find white papers on topics involving process control and automation.
Submitted by Parker Electromechanical
on Wed, 02/06/2019

Mechanical rotary power given from a motor must be driven by an appropriate amount of electrical power provided by the drive. Rotary power is provided for by the electrical input power and the rotary power cannot exceed the electrical. Therefore, it is important to verify the power throughout the system from power supply all the way to the motor or gearbox output shaft.

Submitted by Watlow
on Mon, 03/26/2018

Occasionally questions come up with regard to calibration of Watlow controllers. This paper will attempt to address some of the more common questions on this subject. Many people want to jump in right away and begin performing a calibration procedure before verification. Before you would attempt to calibrate a Watlow controller, verify that the controller is in need of calibration. If you verify that readings of the controller first, you may not have to go through the more involved process of changing the calibration settings.

Submitted by Watlow
on Mon, 03/26/2018

Customers who wish to control three phase heaters require power controllers. How do you decide which method of control to select? ‘Two-leg versus three-leg control’ and ‘zero cross versus phase-angle control need to be considered.’ The following will help you decide when each method is appropriate.

Submitted by Watlow
on Mon, 03/26/2018

In Watlow catalogs, brochures and web pages there is a category of controllers listed as “Limits and Alarms”. It is not always clear to everyone when to use these controllers or which type of controller to use. This document is an attempt to clear up some of these issues.

Submitted by Watlow
on Mon, 03/26/2018

In today’s world, there is an ever increasing awareness and focus on safety. A system designer needs to understand all aspects of design that can affect the safety and reliability of the system they are implementing.

Submitted by Brian Handerhan and Jim Monnich || Parker
on Wed, 10/12/2016

Digital pathology is a rapidly growing segment of invitro-diagnostics with the potential to streamline the overall pathology process for the benefit of both doctors and patients. This relatively new market segment requires motion systems that support both high quality and high speed imaging. In addition, the scanners are dispersed globally, which drives the demand for extremely high reliability. Lastly, as with all diagnostic instruments, laboratory space is at a premium, so minimizing the overall footprint is critical.

Submitted by Brian Handerhan || Parker
on Tue, 10/11/2016

Almost everyone knows someone whose life has been touched by heart disease or cancer—the two leading causes of death in the United States. Today, researchers are using DNA sequencing to better understand the genetic links we have with diseases and how it can influence the course of treatment. We are standing on the edge of the personalized medicine healthcare revolution, which will be fueled by the widespread adoption of DNA sequencing as a diagnostic tool.

Submitted by Joe Podge and Steve Doyle || Chromalox
on Wed, 08/26/2015

There are very few elegant solutions for mid-to-large scale heavy industrial applications that require compact, high-temperature heating sources capable of delivering precise heat energy to a targeted location.

Submitted by Fit-LINE
on Thu, 06/18/2015

Operational efficiency is a critical factor in the fluid processing industry. The synergy of fitting components and assembly technology to achieve this objective is the focus of Fit-LINE, Inc. Applying extensive polymer technology and injection molding expertise, the company has analyzed the design, tooling and manufacturing processes required to create high-performance solutions for demanding high-purity fluid processing applications. Through extensive R&D, testing and evaluation, Fit-LINE has isolated three variables that need to be addressed to ensure leak-free fitting assemblies.

Submitted by Tim Tritch
on Mon, 02/02/2015

The purpose of a filter is to remove contaminants from a fluid stream either completely, or at least down to a given rating or specification. Filters are used to help control contaminants and are rated according to their ability to remove these contaminants from a liquid, gas or air stream. There are different methods in which the performance of filters are specified.

Submitted by Brian Sullivan
on Thu, 08/07/2014

Answer a number of key questions to identify the most appropriate choice

At process plants, a significant percentage of measurement devices aren’t correctly matched to their application, leading to decreased quality and consistency of the operation. Often, the source of this problem is the assumption that one type of level measurement sensor suits multiple applications.

Submitted by Jon Monsen
on Thu, 04/11/2013

I was recently asked how the pressure at the vena contracta of a control valve in a liquid application can be determined. I am sharing my answer below.

Submitted by Jon Monsen, Ph.D., Valin Corporation
on Mon, 07/25/2011

There are two strategies for reducing control valve noise:

1. Source control, that is doing something to the valve to make it less noisy, and

2. Path control, that is doing something to prevent the noise from reaching the people who would be bothered by it.

Submitted by Jon Monsen, Ph.D.
on Fri, 07/22/2011

We will briefly discuss what causes aerodynamic noise and some of the things that can be done to reduce aerodynamic noise generated by control valves.

Submitted by Jon Monsen, PhD
on Thu, 05/19/2011

Perhaps the most misunderstood area of control valve sizing is the selection of the pressure drop, Δp, to use in the sizing calculation