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DATA ACQUISITION - RECORDING
 

 
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GAS DETECTION
 



 

HEAT EXCHANGERS 

 
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PRESSURE
 

 
TEMPERATURE
 

 
VALVES - REGULATORS - ACTUATORS
 
EZINE ARCHIVE

 



David Spitzer's Ezine
2015 Archive

 

Jan. 2015 Part 1: When Do You Measure Mass Flow?
  What's Wrong with VFDs? Why is There Limited Adoption of VFDs in the Process Industry?
  QUIZ:  Typical Liquid Flow Velocity in a Pipe
   
Feb. 2015 Part 2: When Do You Measure Mass Flow?
  Part I: The Things You Don't Know
  What's a Volumetric Flowmeter?
   
March 2015           Part 3: When Do You Measure Mass Flow?
   Part II: Back to Basics - The "New Guy" Steps Out on a Troubleshooting Mission
   Which of the following flowmeters measure the velocity of the fluid passing through the flowmeter? 
   
 April 2015  Pump Station Control: Introduction
  Progress Takes Time - A Flow Application from the Past Shows the Way Forward
  Calculating the Error for a Flowmeter Installed in the Wrong Size Pipe
   
 May 2015  Pump Station Control: On/Off Control Strategy (Part 1) 
  Part III: Low-Flow Scram 
  QUIZ:  Which Flowmeters Measure Mass?  
   
 June 2015  Pump Station Control: On/Off Control Strategy (Part 2)
   Part IV: The Case of the Cold Control Valve
   QUIZ:  Which of the following flowmeters infer the flow of fluid passing through the flowmeter?
   
 July 2015  Pump Station Control: Modulating Control Strategy (Part 1)
   Part V: Root Cause Revealed? New Information Hints at a Possible Source of the Mysterious Reactor Shutdown
   Flowmeter Straight-Pipe Requirements?
   
 August 2015  Pump Station Control: Modulating Control Strategy (Part 2) 
   Part VI: Still Searching for a Solution - While a Jacketed Pipe Helps Reduce Flowmeter 'Scrams', It Doesn't Solve the Problem Entirely 
   QUIZ:  Why Was the Flowmeter Installed in the Middle of the Straight Run?
   
 September 2015  Pump Station Control: Package and Custom Installations
 
   Part VII: How Bubbles in a Control Valve Affect the Downstream Flowmeter  
   QUIZ: Why Was a Control Valve Installed Upstream of a Flowmeter? 
   
 October 2015   Yokogawa Offers A New Online Instrumentation Selection Tool
 
   Pump Control with a PLC (Part 1)
   Part VIII: A Modified Control Strategy Eliminates Problematic Process Bubbles  
  QUIZ: Affinity Laws for Centrifugal Pump Loads
   
 November 2015  

Pump Control with a PLC - Part II

  Part IX: Bypassing the Control Valve Eliminates Process Bubble Troubles
  How Flow Turndown Affects Measurement Range
   
 December 2015  

Pump Control with a PLC - Part III

  Part X: A Coriolis Mass Flowmeter Emerges As An Alternate Solution 
  QUIZ:  Variable-Speed Energy Savings
   
   
   

 



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