Capacitive Grain & Bulk Material Level Sensor | 0-15mm | 5A | 90-240VAC | IP67

Capacitive grain, feed and pellet level sensor – 90-240V AC, relay output, 0-15 mm, IP67

Capacitive proximity and material level sensor designed for detecting grain, compound feed, pellets and other bulk materials in bins, hoppers, tanks, feeding troughs and automatic feed supply systems.

The sensor detects material approaching the active surface and switches the integrated relay output. Its electronic operating principle makes it possible to replace mechanical microswitches that may be affected by dust, moisture, material build-up or mechanical wear.

The sensor can be used as an electronic fill-level control switch for a hopper or feeding tank.

• detects when the material reaches the set level;
• can stop a feed or grain supply conveyor;
• can switch an auger conveyor on or off;
• can send a signal to a control panel or PLC;
• can activate a visual or audible alarm;
• can protect the tank from overfilling.

• Non-contact detection of bulk materials – no mechanical actuation of a switch is required.
• Capacitive operating principle – detects grain, feed, pellets and other materials.
• Wide 90-240V AC supply range – suitable for various control systems.
• Integrated relay output – for transmitting a direct control signal.
• Adjustable 0-15 mm detection distance – for adaptation to different materials.
• Adjustable 0-2 hour delay – for more stable operation of the automation system.
• IP67 enclosure protection – protection against dust and temporary immersion.
• Two-colour LED indication – for monitoring operating status.
• Wide temperature range – for use from -20°C to +75°C.
• Electronic design – reduced risk of mechanical jamming and wear.

• In grain bins – for upper or lower material level control.
• In feed tanks – for controlling an automatic feeding system.
• In feeding troughs and bowls – for monitoring the presence of feed.
• In pellet hoppers – for monitoring fuel, plastic or feed pellet levels.
• In auger conveyor systems – for starting or stopping material supply.
• In conveyor systems – for detecting material presence or accumulation.
• On livestock farms – for controlling automatic feed supply systems.
• In grain storage systems – for signalling hopper filling or emptying.
• In mills and feed plants – for automation of bulk material handling.
• In industrial processes – where dry or granular material must be detected.

For example, in a feed hopper the sensor is installed at the maximum permitted fill level. While the feed has not reached the sensor, the auger conveyor supplies material to the hopper.

When the feed rises to the sensor’s active surface, the capacitive sensing field changes and the integrated relay switches. The relay signal is sent to a contactor or control panel, which stops the conveyor.

When the feed level drops below the sensor, the relay returns to its initial state and conveying can resume automatically.

For the farmer: suitable for controlling grain and feed levels in bins, feeding tanks and automatic troughs.

For the livestock equipment installer: can replace a mechanical feed-level microswitch and transmit a signal to the feeding system controller.

For the automation specialist: the relay output allows the sensor to be integrated into a contactor, interposing relay, PLC or alarm circuit.

For the maintenance specialist: LED indication and adjustable sensitivity simplify inspection, adjustment and fault diagnostics.

Before installation, evaluate the type of material to be detected, hopper design, wall thickness, sensor installation position and the load of the circuit controlled by the relay.

• Do not use the sensor in an explosive or ATEX-classified atmosphere.
• Check the 90-240V AC supply voltage before connection.
• Carry out wiring work only with the power disconnected.
• Adjust sensitivity using the actual material to be detected.
• Test the detection function with the tank empty and filled.
• Take the tank wall material and thickness into account.
• Additional adjustment may be required when installing near metal structures.
• Do not use the relay to supply a high-power motor directly.
• Use a contactor or interposing relay to control a motor or conveyor.
• Do not exceed the relay load rating for the connected load’s cos φ.
• Protect the cable entry from tension and mechanical damage.
• Periodically remove heavily adhered material from the sensor surface.
• Installation and electrical connection must be carried out by a qualified specialist.

Quick selection guide

the capacitive grain and feed level sensor when grain, feed, pellets or another bulk material must be detected without contact in a hopper, tank, feeding trough or conveying system.

Electronic grain, feed and pellet level control

The capacitive proximity sensor is designed to monitor the presence and level of grain, compound feed, pellets and other bulk materials in bins, tanks, feeding troughs and conveying systems.

The electronic operating principle makes it possible to replace mechanical microswitches, reduces the risk of moving parts jamming and allows the detection sensitivity and operating delay to be adjusted. The integrated relay output can transmit a signal to a contactor, interposing relay, PLC or alarm system.

The wide 90-240V AC supply range, 0-15 mm detection distance, adjustable delay of up to 2 hours, IP67 enclosure and two-colour LED indication make the sensor suitable for a variety of agricultural and industrial automation systems. The device must not be used in explosive or ATEX-classified zones.