Description
Aeco Level control sensors are electronic or mechanical transducers that detect the presence of liquids or solid substances, in powder or granular form, in tanks, silos, hoppers, etc. AECO level control sensors are used in every type of application to detect the presence, or absence, of materials in transport, dosing, storage systems, a wide range of industrial processes, as well as the agricultural and civil engineering sectors.
Aeco Level Control Sensors
Aeco Level control sensors are electronic or mechanical transducers that detect the presence of liquids or solid substances, in powder or granular form, in tanks, silos, hoppers, etc.
Capacitive Level Controls
Capacitive level controls are widely used to control the level of substances both solid and liquid which may not be conductive. They are particularly used in silos for cereals, foodstuffs, and the food industry in general. They are also used in the transport, dosing, stocking, and handling of plastic materials, in foundries and cement factories. They are supplied as a probe with aluminum housing and electrode rod or steel wire rope Teflon-coated, in addition to the range of capacitive sensors with rapid or delayed switching, with M18 and M30 threaded cylindrical housing with fixing nuts.

Conductivity Level Controls
They work on the resistivity of liquids and sense the level via the electrodes placed in the conductive liquids. The presence of liquid between the electrode (or electrodes) and the metal surface of the container (or earth electrode) causes the functioning of the electronic circuit in the control unit and the subsequent commutation of the output relay. They are used as level controls in tanks, heaters deep wells, and other containers and as alarm units for overfilling and the checking of ice accumulation.

Rotative Level Controls
They are used for level control in containers holding products in powder or granule form. The body is made of plastic material. The functioning is based on the slow rotation of a synchronous motor which turns the paddle that is placed in the container. In the absence of material the paddle turns, and material coming into contact with the paddle causes a breaking effect which slows down the motor and in turn causes the unit to switch.

Vibration Level Controls
The vibration level controls are used for level control in silos for the storage of animal feed, flour, sawdust, sand, cement, etc.; in installations involving the transportation, dosage, storage and processing of plastic materials or other bulk materials
Their operation is based on the activation of a vibrating fork having two rods that are activated by a piezoelectric source. When the vibrating fork comes into contact with the material to be controlled, the oscillation is damped, the resulting vibration reduction is detected electronically and a switching signal is generated.

Membrane Level Controls
This unit is suitable for controlling the maximum and minimum levels in silos and tanks containing materials such as powder or granules, such as rice, cereals, plastic material, coffee, etc. Its functioning is due to the pressure created by a product on the rubber membrane which activates a micro switch.
The sensitivity of the switching can be adjusted depending on the material to be sensed as a function of its specific weight. Variations in humidity and temperature do not compromise the functioning, furthermore, the membrane is resistant to blows and vibrations.

Magnetic Float Level Controls
Magnetic float level controls for liquids are made of a reed contact placed inside the shaft and an operating magnet placed in the float which runs due to the increase or decrease of the liquid to detect. The working principle is the same as our magnetic sensors. There are 3 models available: one made of plastic housing and two made of AISI 316 stainless steel suitable for high temperatures of +100°C e +150°C.

Protective Case For Capacitive Sensors
Our housing is to be mounted as a waterproof protection to our M30 capacitive sensors. Our SCM housing is made of nontoxic plastic material, suitable for food applications. Temperature range from -20 ÷ +70°C, max pressure inside the tank no greater than 8 bar and threaded 1”1/2 connection. SCM protection housing simplifies the sensor replacement in case of malfunction.
This can be used combined with our ATEX-approved capacitive sensors series AD3 group II, category 3; suitable for potentially explosive zone 22 environments due to the presence of gas and dust ‘D’ mixtures, in conformity with CE Directive 94/96.

Capacitive Sensor -200°C/+250°C
These M18 and M30 sensors should be considered as part of the traditional range of capacitive sensors with the difference that the electronic portion is completely separate from the sensing part which is in the form of an extension and can withstand temperatures from -200°C to +250°C. These products are used to control the levels of hot materials such as liquids, oil, powder, and plastic granules.
They also sense solid metallic and non-metallic bodies positioned in areas of high temperature. The connecting cable between the sensor and the amplifier must be of standard length (2mt or 5mt). It is connected to the sensor and it is provided with a shielded connector for connection to the amplifier.

Source : www.aecosensors.com
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