Principles of PID Control and Tuning White Paper

PID is short for "proportional plus integral and derivative control", the three actions used in managing a control loop. Process loop controllers use one, two or all three of these to optimally control the process system. PID control is used in a wide variety of applications in industrial control and process system management.

Download "Principles of PID Control and Tuning" from the Hile Controls website here.

Courtesy of Eurotherm. Eurotherm offers a wide range of single & multi-loop PID controllers.

Principles of PID Control and Tuning from Hile Controls of Alabama, Inc.

Tutorial on Setting Up the Jordan Valve Mark 70SP Series Sliding Gate Control Valve

The Jordan Mark 70SP Series is a line of pneumatically operated diaphragm control valves that combine multiple spring actuators with the precision of Jordan Valve's advanced sliding gate seat for closer control and greater accuracy.

Consisting of a modulating disc and stationary plate, the sliding gate seat components are slotted with multiple orifices that align to provide the precise flow needed to maintain the process requirements. The valve strokes in a fraction of the travel required by conventional control valves for rapid correction of any deviation from the process setpoint.

Jordan's unique sliding gate control valve trim teams up with pressure, temperature pH, level, or flow controllers for fast response, long term reliability, and high levels of accuracy on steam, gas, liquid and chemical services.

For more information about all Jordan Valve products, contact Hile Controls of Alabama by calling 800-536-0269 or visiting https://hilealabama.com.

The ABB LMS200 Magnetic Level Gauge Switch

If you're looking for reliable liquid level detection from a non–invasive, non–contact, and economical device, ABB has a solution you need to consider.

ABB’s magnetic level gauge switches provide safe and reliable liquid level detection and process control when integrated externally on the KM26 series magnetic level gauges and LS series products. The LMS200 series are non–invasive magnetically actuated electrical switches that provide complete isolation from the process fluid by coupling with the magnetic floats and attraction sleeves already present in the ABB KM26 and LS series magnetic level gauge.

This passive,  method of coupling facilitates safe operation, while also eliminating the need for costly seals, diaphragms, and process connections commonly associated with point level switch technology. The superior design enables the setpoint to be adjusted without any changes to process piping, resulting in level switches that are quickly deployed, readily adjustable, and easy to maintain.

LMS200 Magnetic Level Gauge Switch (exploded view)

Wiring

The LMS200 provides double–pole, double–throw (DPDT) switching in the form of two isolated normally open or normally closed contacts. Since the switch is configured in a double pole double throw configuration, two separate devices can be controlled with the same switch. The current switching capacity of the switch allows for a wide variety of devices to be switched as long as the stated limits are not exceeded. Since the LMS200 is magnetically actuated, it is suited for any application where it is necessary to sense the passing of a magnetic float on a KM26, or similar chamber, attached to a vessel containing fluid. This will provide for the detection of a start/stop trip point of either a total or interface level of any vessel. These trip points can be used for alarms or activating a pump motor starter relay.

Mounting

The LMS200 is mounted using two standard stainless steel clamps that pass over the tabs mounted to the switch housing The clamp is then fastened to the KM26, or similar chamber. The switch can be easily positioned by loosening the clamp with a screwdriver and sliding the switch to the correct position on the chamber. Other switches can be added at any time, without the concern for additional process piping or valves.


For more information on the LMS200 Magnetic Level Gauge Switch, or any ABB process level product, contact Hile Controls of Alabama.

https://hilealabama.com
800-536-0269