Liquid level sensing is an important aspect of fluid measurement in a range of industries and applications. Sensor Tips helps you stay current on the latest news and information in liquid level sensing by compiling articles and information from a diverse group of sources. Stay up to date on the latest trends by subscribing to our RSS feed today!
Continuous Liquid Level Sensor Uses Magnetostrictive Technology
December 9, 2009 by admin
Filed under Level, Liquid Level
OleumTech today announced the release of the H-Series, hard-wired continuous level sensors, which complements its existing wireless liquid level transmitter offering. The H-Series is a digital level sensor based on a field proven magnetostrictive technology, which makes it ideal for Oil & Gas, Food & Beverage and other level measurement applications requiring process control, leak detection or inventory control.
With a low power design, H-Series sensors can be multi-dropped on a RS485 network, providing Modbus connectivity to a RTU or PLC controller. By combining low power requirements with high resolution of 0.01″ across full span, the H-Series provides the ultimate performance and reliability.
“The new liquid level solution is ideal for short distance runs to the RTU or existing legacy installs where conduit and wiring is available,” said Vrej Isa, COO at OleumTech. “But it’s the innovative packaging with the ease of installation that will set us apart from the competition.”
The Liquid Level Sensor is capable of providing product level, interface level and temperature measurement in virtually all tank sizes (up to 60 feet tall) in a variety of liquids such as crude oil, solvents, water, diesel, kerosene, gasoline and other media. The H-Series is available in a rigid stainless steel or flexible PVDF package.
The H-Series design meets applicable regulatory requirements for use in hazardous environments. OleumTech additionally offers an optional barrier board that limits the current, voltage, and total energy delivered to the sensor in a hazardous area or flammable environment. The barrier boards also provide extra protection to the level sensor from lightning strikes or any surge damage.
Level Sensor Built for Bulk
November 30, 2009 by admin
Filed under Level, Liquid Level
(Microwave Impulse Point-level) is especially designed for the needs of the bulk handling industries. It can be applied to bulk solids or liquid level detection, in plastic vessels for example, or object detection – such as vehicle positioning/warning and oversize/height alarms on conveyors etc. As this is a non-contact measurement, VEGAMIP 61 has no direct contact with the medium, providing reliability for abrasive, aggressive or high temperature applications. In the case of metallic or conductive vessels, VEGAMIP can measure from the outside through a non conductive microwave permeable window, e.g. in ceramic, glass or plastic materials.
VEGAMIP consists of a transmitter VEGAMIP T61and one or several R61 receivers for wider areas. The adjustable sensitivity receiver measures the attenuation of the microwave signal and outputs a relay switch. It has a very wide dynamic range, borne from the pedigree of over 250,000 microwave level devices sold world wide. The wide sensitivity range adds to reliability, especially when operating conditions are difficult, which means it still operates consistently with dirt, dust or build up. Operating ranges are up to 100m.
VEGAMIP can be used as a maximum or minimum sensor, switching delays can be set between 0.1 and 20 s. VEGAMIP is fully integrated into VEGA’s plics® modular system. This means there are a range of plastic, aluminium or stainless steel housings, as well as different antenna systems and process fittings available, allowing configuration of the sensor precisely to specific user requirements.
Micropulse: Clean Enough to Eat off of
November 20, 2009 by admin
Filed under Level, Liquid Level
The Micropulse SF fill level sensor provides continuous, absolute fill-level measurement in applications that require adherence to the strictest standards of hygiene and cleanliness. 
Sensors in a sanitary manufacturing facility must be cost effective, have minimum impact upon production, and must not negatively impact the cleanliness or quality of the foods (or products) being manufactured. Made from corrosion-free stainless steel with rounded edges and minimal crevices, the Micropulse SF meets the highest international hygiene standards and fulfills strict food industry requirements. Certified to 3-A and EHEDG sanitary standards, the sensor is 100% stainless steel to ensure top sanitation standards and long-term service life.
Benefits include:
- Chemically neutral for all liquids
- Compensates for surface foam to deliver reliable, accurate fill level values
- Adjustment-free installation
- Easy to clean in installed state (CIP – Clean in Place)
- Withstands process temperatures up to 130°C (SIP – Sterilization in Place)
- Standard analog interface ensures wide controller compatibility and flexible installation
- International certification ensures global acceptance
- Highly precise measuring technology is ideal for filling or dispensing applications
The industry-standard Micropulse SF fill level sensor uses field-tested magnetostrictive technology to provide highly-precise fill level measurement. Noncontact measurement technology ensures unparalleled reliability and performance. Its continuously-variable analog output signals allow for easy connection to control systems.
Optic Level Sensor for Harsh Environments
November 20, 2009 by admin
Filed under Level, Liquid Level
GEMS Sensors & Controls has launched its new 950 Electro Optic Level Sensor (ELS) for a wide range of applications and industries. According to Gems, the new miniature, low cost ELS-950 was developed to perform in harsh environments with features such as an over-molded electronics insert, TPE insulated wires, and fluorosilicone O-ring seals to create a watertight, environmentally resistant assembly.
The ELS-950 is the next generation of the 900 series, as it is built on the proven technology of its predecessor line. Additionally the small, solid state sensor is durable enough to handle almost any application or temperature.
Gems says the ELS-950 is suitable for applications such as OHV, Medical diagnostic, sterilizer, and dialysis equipment; low lubricant warning on machine tools, and generator sets; construction, agricultural, and material handling equipment; coolant reservoir monitoring/warning and OEM food and beverage applications.
NEW ISOLATION VALVES ADDED TO GEMS FAMILY
October 30, 2009 by admin
Filed under Featured, Flow, Liquid Level
Gems Sensors & Controls announced their new K Series inert isolation solenoid valves. Constructed from chemically inert materials such as: PTFE, ETFE, EPDM, FKM, FFKM, PEEK, PPS and PSU; the K Series of isolation valves is an excellent choice for any application requiring various levels of chemical resistance and/or sample purity. Liquid Chromatography, Gas Analyzers and Water Quality Testers are just a few of such applications.
Offered in multiple body sizes, port configurations, wetted body and diaphragm materials; the K Series is a truly modular platform of direct acting round bodied solenoid valves allowing for superb power, flow, durability and life optimization. This line of inert valves is comprised of three groups: KS Series are 2-way valves with an MOPD of 20 PSIG;KM/KL Series are available in 2-way and 3-Way Directional configurations, with MOPDs up to 30 PSIG; and KV/KW Series offer 2-Way and 3-Way Directional configurations, with MOPDs as high as 20 PSIG.
Combination Liquid Level and Temperature Switch
May 13, 2009 by admin
Filed under Level, Liquid Level, Temperature
A liquid level and temperature switch was designed into one assembly to reduce the cost of a fluid system. Tempco can design a custom sensor to meet many applications such as industrial and commercial degreasers and hot liquid dispensing machines.
Liquid Level Sensor Options
The liquid level sensing can be obtained using magnetic floats and switches, or the conductivity method. The conductivity method uses the simple concept of the conductive property of liquids to complete a circuit and cause an external control relay to actuate.
Temperature Sensor Options
Thermocouples, RTD’s, thermistors and thermostat switches with an assortment of accuracies can be incorporated into the assembly.
Tempco Electric Heater Corporation designs and manufactures electric heating elements,
temperature sensors, temperature controllers and turnkey process heating systems.
Tempco
www.tempco.com
Baumer Introduces Complete Line of Capacitive Sensors
April 29, 2009 by Editor
Filed under Liquid Level
Southington, Conn. — Baumer has introduced a complete line of Capacitive Sensors capable of penetrating through packaging materials such as plastics, glass, cardboard, foam, and other substrates. These sensors are available in a range of housing sizes and designs, and offer extended sensing distances to facilitate installation.
Installed outside of container walls, Baumer Capacitive Sensors do not require direct contact with the target substrate, a feature that protects the sensor from damage and ensures process safety and sensor life expectancy. This non-invasive method of detection also ensures that the sensor’s housing cannot contaminate the target material.
Baumer Capacitive Sensors are available in cylindrical, rectangular and special designs. Models are available for use in limited space applications, and for performance in ambient and elevated temperatures. Possible target substrates include plastics, glass, ceramics, porcelain, clay, stone, wood, paper, cardboard, pellets, powders, and foods. These sensors are used in packaging, PCB fabrication, printing, rubber/plastics fabrication, robotics and handling, transportation, warehousing, food and drug processing, medical device manufacturing, cosmetic production, wood processing, metalworking, oil and gas processing, water treatment, and textile production.
Baumer
www.baumerelectric.com/usa
Sensor Solution Brochures from Automation Products Group
January 19, 2009 by Editor
Filed under Liquid Level, Pressure
LOGAN, UT – Automation Products Group, Inc. (APG) has available a brochure on Sensor Solutions for Oil and Gas Drilling Operations, including mud pressure, mud tank level, liquid level sensing, general purpose monitoring and pressure calibration equipment.
The brochure reviews potential oil and gas sensing solutions, including APG’s HU intrinsically safe Hammer Union pressure transmitter, PT-400 pressure sensor, PT-500 hydrostatic pressure level transmitter, PG-7 digital pressure gauge, LPU-2428 ultrasonic level sensor, LPU-2127 ultrasonic sensor, KA Kari cable suspended float switch, PC-10K hydraulic pressure comparator/calibrator and the RPM resistive chain level sensor. The depth and breadth of APG’s sensing solutions enables them to provide an unbiased technology recommendation in oil and gas applications.
GEMS Ultrasonic Continuous Liquid Level Sensor
December 23, 2008 by admin
Filed under Liquid Level
Plainville, CT — Gems® Sensors & Controls™ (Gems) has launched the UCL-520 Series of Ultrasonic Level Sensors. The UCL-520 Series is suitable for non-contact applications such as industrial water treatment, wastewater management, chemical storage as well as many other challenging fluid applications.
The UCL-520 is a two-wire ultrasonic transmitter for measurement up to 26.2’ (8m) and is built with a rugged PVDF transducer for challenging ultra pure, corrosive or waste liquids. The highly accurate sensor is easy to install within limited space applications and the minimum 8” dead band allows for maximum fill of media. The UCL-520 offers a 3” (7.6cm) minimum beam width for restricted space applications and the selectable display indicates level in air gap or liquid height. The UCL-520 is push button calibrated with 6-segment LCD display and is broadly selected for corrosive media including atmospheric bulk storage, day tank and waste sump applications.
“Gems’ new line of ultrasonic level sensors offers our customers an innovative non-contact solution for both small and large tank applications. These highly accurate sensors provide flexibility and control for challenging fluid measurement applications” says Kevin Castonguay, Product Marketing Manager for Gems Sensors & Controls.
Bent Arm Liquid Level Sensor
December 17, 2008 by admin
Filed under Liquid Level
Chicago, IL – Chicago Sensor, Inc. introduces our new bent arm stainless steel liquid level sensor: the FLT223 series.
The new design offers users the ability to sense liquid level 1.5” below the mounting point of the switch, but without the need for a custom bracket as would be required with a vertical-mount switch. The switch mounting hole can be above the high-level point in a chamber, avoiding long-term issues with leakage or caustic chemicals that may resist normal techniques for sealing the mounting hole.
Developed by Chicago Sensor for an aviation engineering client, the switch can be used in a variety of applications. The Company keeps small quantities of the switch in stock and ready for immediate shipment at chicagosensor.com. Order quantities in the thousands can generally be produced in just three to four weeks. The switch offers excellent value, with pricing under $14 per piece in quantity.
