Saturday, January 12, 2019

The ABB LMS200 Magnetic Level Gauge Switch

LMS200 Magnetic Level Gauge SwitchIf 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.
LMS200 Magnetic Level Gauge Switch
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
LMS200 Magnetic Level Gauge Switch (exploded view)
LMS200 Magnetic Level Gauge Switch
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.

LMS200 Magnetic Level Gauge Switch
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.

Wednesday, December 12, 2018

Happy Holidays from All of Us at Hile Controls of Alabama

From all of us at Hile Controls of Alabama, we wish our customers, partners and vendors a safe and happy holiday season and a wonderful 2019!

Saturday, December 8, 2018

Infrared Products for Monitoring Smokeless Flares, Pilots, and Flame Intensity

Infrared Monitoring Smokeless Flares

Smokeless Flares

Smokeless flares incinerate flammable hazardous vent gas with the assistance of supplemental high-velocity air or steam to prevent the formation of soot or smoke. Excessive injection of air or steam reduces combustion efficiency, resulting in the release of hazardous VOC gases. Meanwhile, inadequate injection of air or steam results in the formation of undesirable soot and smoke. Although modern flares are designed for high flow rates associated with an emergency condition, they most commonly operate at high-turn-down, low-flow rates, making it challenging for the flare to operate at optimal combustion efficiency.

Pilot Monitor

Flammable vent gases are ignited by a pilot flame when released into the atmosphere by refineries, natural gas processing plants, and petrochemical plants. The proper incineration of these gases is a critical safety and environmental concern. Therefore, it is essential to confirm that the pilot is lit at all times. Monitoring via a thermocouple is common, however, failures frequently occur and replacements can require costly process shutdowns. Remote sensing IR technology (PM) is the superior alternative.

Flame Intensity Monitors

Williamson Flame Intensity Monitors (FI) are the single-wavelength sensors of choice for a variety of flare applications where the more sophisticated dual-wavelength flare products are not appropriate or are not required. Products specifically designated for flame intensity monitoring applications include:
  • Pilot Monitoring of Hydrogen, Ammonia or CO Flames
  • Pilot Monitoring of Ground Flares and Landfill Flares
  • Flame Intensity Monitoring
Download the Infrared Products for Monitoring Smokeless Flares, Pilots, and Flame Intensity brochure here.

For more information, contact Hile Controls of Alabama by calling 800-536-0269 or visiting

Monday, December 3, 2018

How They Work: The Bronkhorst Mini CORI-FLOW™ Coriolis Mass Flow Meter

Traditionally, Coriolis Mass Flow Meters are mainly applied for medium to high flow rates of liquids. Applications are found in industrial processes e.g. in chemical plants, the oil & gas market and in the food and beverage industry. Measuring low flow rates has, so far, been complicated and costly.

mini CORI-FLOW® series by Bronkhorst are precise and compact Mass Flow Meters and Controllers, based on the Coriolis measuring principle. Designed to cover the needs of the low flow market, they offer “multi-range” functionality, i.e. factory calibrated ranges that can be rescaled by the user while maintaining the original accuracy specs. As a result customers lower inventory costs and total cost of ownership.

Hile Controls of Alabama

Saturday, November 17, 2018

What Are Coriolis Flow Meters?

Coriolis flow meter twisting
Animation of how the Coriolis flow meter tubes twist
in response to a flow/no-flow condition.
Coriolis mass flow meters are designed to measure almost any fluid across any application. Built on the Coriolis Principle, these meters measure the mass of the fluids directly (rather than volume) and do not require temperature or pressure compensation for accuracy.

Measuring Principle

The Coriolis measuring principle is based upon the physical effect a moving mass has on a body in a rotating frame of reference. This moving mass exerts an apparent force on the body, causing a deformation. This force is called the Coriolis force. It does not act directly on the body, but on the motion of the body. This principle is used in Coriolis flow meters.


A Coriolis flow meter consists of two parallel tubes that are made to oscillate using a magnet. These oscillations are recorded by sensors fitted at the inlet and outlet of each tube. In a no-flow state, the oscillations are synchronized, since there is no mass exerting any force on the tubes. When fluid or gas flow exists through the tubes,  Coriolis forces are generated, causing the tubes to deflect or twist in proportion to the mass flow rate of the medium.

Coriolis Flow Movement
Coriolis Flow Movement

Three Styles of Coriolis Flow Meters

U-Shaped Coriolis Flow Meters:
U-Shaped Coriolis Flow Meter
U-Shaped Coriolis Flow Meter

These flow meters utilize two tubes arranged in the shape of the letter ‘U’, a magnet and coil assembly, and sensors at the inlet and outlet of the tubes. Coriolis forces exerted by the flow medium are used to determine the mass flow rate and density of the medium.

Micro-bend Shaped Coriolis Flow Meters:

Micro-bend Shaped Coriolis Flow Meter
Micro-bend Shaped Coriolis Flow Meter
These flow meters utilize of two U-Shaped tubes in a casing with a considerably smaller radius than conventional U-Shaped Coriolis flowmeters. The smaller radius ensures a more compact instrument with significantly lower pressure differential values compared to other flow meters.

Triangle Shaped Coriolis Flow Meters:

Triangle Shaped Coriolis Flow Meter
Triangle Shaped Coriolis Flow Meter
The Triangular flow meter is the most compact style of Coriolis mass flow meters, designed specifically to provide optimum performance in low-flow applications. It utilizes a single flow tube which is considerably smaller in size than the conventional U-Shaped tube.

For more information about Coriolis flow meters, contact Hile Controls of Alabama by visiting their web site at or by calling 800-536-0269.