TAG level switches are designed to detect the presence of materials that accrue in the surroundings of the electrode’s position. Materials can be fluids, powders, granules and conductive or non-conductive, grains, powders, plastics, oils or water. The electrode may be installed in free air or closed vessels, including metallic or non-metallic pipes or reservoirs.
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.
RF is transferred from the feeler through the mass of the material to the ground point of the sensing unit. This causes RF energy losses. The variations of RF current are converted to a DC signal that is sent to the control box to activate the dry contact relay. The set will continue to function even when the feeler is completely covered by material.
The function of the sensing unit is not hampered by material sticking to it or influenced by the relative humidity of the environment. After initial fitment of TAG, no further adjustment is required of these fit-and-forget devices.
State-of-the-art solution for robust industrial Ethernet connectivity Vepac Electronics
Operator Interfaces, Switches & Relays
The 7015-4U2T-T1L unmanaged industrial Single Pair Ethernet (SPE) switch from Vepac is a state-of-the-art solution for robust industrial Ethernet connectivity.
Read more...Simple, powerful illumination
Operator Interfaces, Switches & Relays
In applications needing quick, clear communication, the GS60 Pro Multicolour Guide Spotlight delivers powerful, easily configurable illumination and indication to reduce errors and improve productivity.
Read more...Status display for conveying sensor, machine and device data Turck Banner Southern Africa
Operator Interfaces, Switches & Relays
Enhance application accuracy and efficiency with the SD50 Status Display, which conveys sensor, machine and device data via text and multicolour LEDs.
Read more...Compact industrial switches
Operator Interfaces, Switches & Relays
The Hirschmann Bobcat Series delivers high-performance, compact industrial switches designed for real-time communication.
Read more...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...Leaders in sensor technology Gail Norton Instrumentation
Sensors & Transducers
Photoelectric eyes have always needed perfect working conditions, but in the workplace there is no such thing. Steam, water, light and dirt interfere with most photoelectric eyes, but never with a Telco sensor.
Read more...Sensors for blocked or empty chute detection Gail Norton Instrumentation
Sensors & Transducers
The Telco Sensors system, used for blocked chute detection, consists of a PA 11 photoelectric amplifier with transmitter (LT) and receiver (LR).
Read more...Sensors for chute monitoring Gail Norton Instrumentation
Sensors & Transducers
In many industries there is a problem for photoelectric sensors. The highly contaminated environment makes it difficult for them to operate reliably. Telco sensors overcome this problem through powerful high-performance infrared sensors that ensure penetration of harsh pollution, guaranteeing reliable detection.
Read more...Power and control platform for complex applications Schneider Electric South Africa
Operator Interfaces, Switches & Relays
Schneider Electric has unveiled the latest device in its PowerLogic range of products, the PowerLogic P7 digital power and control platform. This was designed to offer the best performance in complex and high-demand applications, and is based on a visualisation-ready, next-generation platform powered by a single configuration tool, the PowerLogic engineering suite.
printer friendly version