Process Solutions Technical Bulletins and Guides
Achieving High Availability with Redundant Rockwell ControlLogix Systems Rockwell’s Allen Bradley ControlLogix line supports enhanced redundancy with processors, communications, and power supplies to achieve high availability of your control system....
A PID loop adjusts its OP to maintain its PV at its SP. Some PID loops cannot be satisfactorily tuned by adjusting the three primary constants. When combined with good...
The art of tuning a PID loop is to have it adjust its output (OP) to move the process variable (PV) as quickly as possible to the set point (responsive),...
Hazardous Area Classification Guide The National Electrical Code (NEC) defines hazardous locations as those areas “where fire or explosion hazards may exist due to flammable gases or vapors, flammable liquids,...
Guide to Selecting an Oval Gear Meter Once you’ve decided that an Oval Gear Meter is the best flow meter for your specific application, there are a few key things...
Flow Measurement: The Truth About Upstream and Downstream Pipe Diameters Our experts agree that the most common issues with flow measurement are incorrect sizing of flow meters and poor installation....
If you spend much time working with calibration gas, it’s very likely that you will see the term “LEL” used extensively. LEL, short for “Lower Explosive Limit“, is defined as...
Instruments should be ranged to measure not only expected values but all values the system can produce. During upsets, actual values often exceed 20mA values for instruments tightly ranged for...
How to Use Wireless Technology in an Industrial Environment Let’s say you have a project where you need to get some information (sensor readings, video, alarms, etc) from one side...
How to Optimize Equipment on a Low Pressure Tank When setting up a low pressure storage tank, there are a number of safety devices needed to ensure the protection of...
How to Size Pneumatic Actuators Pneumatic actuators come in many design types, but all share the same need for basic understanding of how their torque operates a valve. Whether you...
How to Select a Solenoid Valve for Operating a Shutoff Valve Which solenoid valve do you need to control your pneumatic shutoff valve? Direct mounted, remote mounted, three-way, four-way, five-way,...
