Tag level switches are designed to detect the presence of different materials accrued in the surroundings of the electrode’s position. Materials can be any fluids, semi-fluids, powders and granules, conductive or non-conductive, grains, powders, plastic raw materials, oils and water. The electrode can be installed in free air or closed vessels. Vessels may be metallic or non-metallic pipes or reservoirs. Any material adhering to it does not affect the function of the sensing unit.
Some of the principals on which the Tag units function are changes of RF current and voltage, loss of energy and changes of dielectric constant versus air (disregarding capacity). RF is transferred from the feeler through the mass of the material to ground point of the sensing unit. This causes RF energy losses. The variations of RF current are transformed to DC and thus reach the control box. The amplifier in the control box activates the relay which incorporates dry contacts. The set will continue to work properly even if the feeler is totally covered by material.
After initial fitting of the unit, no further adjustment is required. The Tag level switches do not require maintenance and offer a truly fit-and-forget solution.
Telco sensors in the pulp and paper industry Gail Norton Instrumentation
Sensors & Transducers
The pulp and paper industry poses a major problem for most photoelectric sensors. The high level of contamination in these dusty, dirty and grimy environments makes it impossible for most competing sensors to operate and sense reliably and efficiently.
Read more...Cloud-based inventory management software Endress+Hauser South Africa
Level Measurement & Control
Netilion is an award-winning cloud-based IIoT ecosystem designed for industrial processes. It connects the physical and digital worlds to send valuable information from the field straight to your phone, tablet or other device.
Read more...Optical fork sensor series Gail Norton Instrumentation
Sensors & Transducers
The OFS series consists of self-contained optical fork sensors that are housed in a durable, U-shaped aluminum housing, which operates in through-beam mode.
Read more...Level sensing, conveyor control and grid resistors DRH Components
Editor's Choice Level Measurement & Control
DRH Components is a specialist electric component and systems supplier with a focus on the control of electric motors. As part of its wide variety of products, the company markets the entire Bindicator range. Bindicator manufactures sensors for dry bulk and liquid level measurement.
Read more...Level measurement under extreme plant processing conditions VEGA Controls SA
Level Measurement & Control
Level measurement in LNG and LPG processes is about answering the simple question: “How much product is in the tank?” However, obtaining an exact value is not easy. The products are often under pressure, cryogenic, and highly explosive. Sensors from Vega have been operating successfully in all stages of the LNG/LPG process for many years.
Read more...Telco sensors for accuracy and reliability Gail Norton Instrumentation
Sensors & Transducers
Photoelectric eyes have always needed perfect working conditions, but in the workplace, there is no such thing.
Read more...Sensors in conveyor belt monitoring Gail Norton Instrumentation
Sensors & Transducers
We all know how high the costs of damaged conveyors can be. Gail Norton Instrumentation Agencies has designed a unit that can effectively monitor conveyors and stop further damage.
Read more...Grounding of hydrostatic level sensors WIKA Instruments
Level Measurement & Control
Hydrostatic level sensors are very often installed in outdoor applications, primarily in the water and wastewater industries. A good connection to ground is essential when installing hydrostatic level sensors, since no grounding or poor grounding can result in destruction or damage to the level sensor.
Read more...Telco sensors for accuracy and reliability Gail Norton Instrumentation
Sensors & Transducers
Photoelectric eyes have always needed perfect working conditions, but in the workplace, there is no such thing.