Cement | flour | bulk materials rotary | rotating paddle level sensor | detector | 230VAC | 5A/250V SPDT | high temperature +200°C | IP65

This model differs from the standard version by its high-temperature design. An additional extended cooling / thermal isolation section between the housing and the process connection helps keep the electrical and mechanical parts of the switch farther away from the hot process zone. The switch is designed for point level control of bulk materials where the process temperature may reach up to +200°C.

This version is designed for processes where the temperature limits of a standard level switch rated up to +80°C would be insufficient. The operating temperature range is from -20°C to +200°C max. The high-temperature version has an extended construction section between the process and the main housing, allowing the housing to be positioned farther away from the high-temperature zone.

The integrated microswitch provides an SPDT changeover contact with an electrical rating of up to 5A / 250VAC. The contact can be used to transmit a point level signal to a PLC, contactor, interposing relay, visual or audible alarm, or other compatible control equipment.

The 100mm wide paddle must be able to rotate freely and must not touch the tank wall, internal structures, pipes or other equipment. The installation location should be selected so that the material reaches the paddle naturally and the paddle is not damaged by a direct, strong flow of material.

The high-temperature rotary level switch can be used in various manufacturing and processing systems where the bulk material or process zone is hot. It is suitable for point level control in hoppers, silos, drying systems, cement production, plastics processing, chemical fibre production and other processes, provided that the operating conditions remain within the -20°C ~ +200°C temperature range and normal pressure limits.

• Operating temperature up to +200°C allows use in high-temperature bulk material processes.
• Extended high-temperature construction keeps the main housing farther away from the hot process zone.
• Simple electromechanical operating principle does not require continuous analogue level measurement.
• SPDT 5A / 250VAC contact allows the point-level signal to be transmitted to a control circuit.
• SUS304 stainless steel paddle is designed for direct contact with bulk material.
• 1 rpm paddle speed is designed for reliable mechanical detection of material presence.
• IP65 protection rating protects the housing against dust and water jets in accordance with IP65 requirements.
• G1" process connection is intended for mechanical installation into a tank or process unit.
• M20x1.5 cable entry is intended for connecting power and signal wiring.
• 3W power consumption is required to drive the paddle.

• Designed for point level rather than continuous level measurement: the switch indicates whether the material has reached a specific point, but does not measure the exact level in metres or percentages.
• Mechanical contact with the material: the paddle must physically contact the monitored bulk material.
• +200°C is the maximum limit: the process temperature must not exceed the maximum permitted temperature of the product.
• Not suitable for liquid level measurement: the operating principle is based on bulk material stopping the rotating paddle.
• Normal operating pressure: the model is not intended for pressurised vessels without additional technical approval.
• The installation location must be selected correctly: a strong direct stream of falling material may create mechanical load on the paddle.
• Clearance is required for paddle rotation: there must be no internal structures or other obstructions around the paddle.

In a process hopper containing hot bulk material, the switch is installed at the maximum permitted filling level. The extended 60mm construction section keeps the main housing farther away from the hot hopper wall and process zone. As long as the material does not reach the paddle, the 230VAC synchronous motor rotates it at approximately 1 rpm. When the material rises to the paddle, rotation stops, the SPDT contact switches, and the signal is transmitted to a controller that can stop the feed conveyor or activate a full-tank alarm.

The main difference is the higher permitted process temperature. This model is designed for operation up to +200°C and has an extended spacer section between the process and the main housing.

The maximum operating temperature is +200°C.

The operating temperature range is from -20°C to +200°C max.

It detects whether bulk material has reached a specific point in the tank. It is a point level switch rather than a continuous level transmitter.

The paddle rotates continuously at low speed. When bulk material surrounds it and creates mechanical resistance, the paddle rotation stops and the internal mechanism switches the signal contact.

The switch supply voltage is 230VAC.

An SPDT microswitch contact is used, with an electrical rating of up to 5A / 250VAC.

The paddle rotation speed is approximately 1 rpm.

The paddle is made of SUS304 stainless steel.

It keeps the main switch housing farther away from the high-temperature process zone. This is one of the key construction differences of the high-temperature version.

Yes, provided that the actual process temperature, pressure, material properties and other operating conditions are within the switch specifications.

Yes, for bulk material level control, provided that the process temperature does not exceed +200°C and the system operates under normal pressure conditions.

No. This model is designed for bulk materials whose mechanical resistance can stop the rotating paddle.

Yes. When installed in the upper section of a tank, the contact signal can be used to stop filling or activate a full-tank alarm.

Yes. When correctly installed in the lower section of a tank, the change in contact state can be used to monitor the minimum material level.

A G1" process connection is used.

The electrical cable entry is M20x1.5.

The enclosure protection rating is IP65.

The high-temperature rotary level switch must be installed so that the paddle can rotate freely and the main housing is not unnecessarily exposed to direct process heat. The extended 60mm construction section is designed to keep the housing farther away from the hot zone, but the process temperature must not exceed +200°C. The process connection, mechanical mounting and cable entry must be installed in accordance with the manufacturer’s requirements. Electrical 230VAC connection work must be carried out by a qualified specialist with the power supply disconnected before work begins. The 5A / 250VAC SPDT contact rating must not be exceeded. For pressurised, explosive or other special environments, equipment specifically designed and appropriately certified for those conditions must be selected.