Ajmer Thermotech Pvt. Ltd.

Ajmer Thermotech
Level Switches

Level Switches

Level switches are electronic devices designed to detect and monitor liquid levels in tanks, vessels, or pipelines. They play a crucial role in various industries where accurate and timely level control is essential. By sensing changes in liquid levels, level switches provide valuable information for process optimization, safety measures, and efficient resource management. Level switches are essential devices for accurate liquid level detection and monitoring. With their versatility, reliability, and cost-effectiveness, they are widely used in various industries to optimize processes, enhance safety, and ensure efficient liquid level control. Whether it's for inventory management, process automation, or safety measures, level switches provide a reliable and practical solution for monitoring and controlling liquid levels in industrial applications.

Vibrating Fork Level Switch

A tuning fork made of SS 316 L is kept vibrating at its resonant frequency of approx. 125 Hz (standard) by piezo ceramic elements. when the service material covers the tines of the fork, vibrations are damped. This damping is sensed electronically and the processed signal is used to energize a relay whose contact in turn are used for control.


Compact instrument, minimum tine length of 125 mm, No moving parts, no wear and tear, maintenance-free, Fast switching response, External magnetic key setting in certain model, High pressure up to 30 bar, Low power consumption, No Calibration required

Aqua Fork Point Level Switch

The electronically stimulated fork vibrates at its mechanically resonance frequency of about 400 Hz when the fork is free of the service material. The resonance is caused by the piezoelectric crystals. One of the piezo crystals produces a small voltage which is transmitted to the switching amplifier. If the fork is covered by the bulk material, a damping effect is produced and the piezo crystal does not produce the voltage and the amplifier will switch and a corresponding signal output is actuated. The vibration of the fork has self-cleaning properties.


Fast and Easy Installation, No effect of electrical properties of the Service material, High Reliability, Field selectable operation logic, Can be configured either for High or Low level point switching, Provides economical solutions, Various model not required. Reduces the Inventory cost

Boot Level Detector Diaphragm Switch

The device must be mounted so that the diaphragm membrane is exposed to the product whose level should be controlled, in such a way that the product can press the diaphragm. The material weight pressesthe diaphragm which is adjusted with the micro switch through a flexible mechanism. A liver attached to the diaphragm transfersthe pressure to the micro switch which changes the contact. When the material recedes the diaphragm comes back to its normal position and the micro switch again changes the contact.

Capacitance Level Switch

The Capacitance Level Switch is an advanced device that provides accurate and reliable liquid level detection in a wide range of industrial applications. This switch utilizes capacitance measurement technology to monitor and control liquid levels, offering a dependable solution for maintaining optimal operations and preventing overflow or under fill situations.

Conductivity Level Switch

A low AC voltage is applied between the probe electrode and when the liquid comes in contact with the electrode tip, a conductive path is established between the sense
electrode and the tank wall / reference electrode. This current is sensed, amplified and made to operate a relay whose
contact in turn can be used for annunciation/control.


Two Point action for automatic pump control, Two Point independent switching, Three Point switching, Two points with pump control logic and one independent point, Four Point switching having two- pump control logic, Variety of probes available for various process condition, Multichannel – 4 Point independent switching available for various process condition.

Magnetic Float Level Switch

The single unit or multiple reed switch units are housed tightly in stainless steel stem, and the permanent magnet is sealed into the middle of the specified float balls. You can mount the float ball to penetrating through the stem and then the liquid buoyancy will deliver the float ball up and down at the specified position by graduating rings. When the float internal magnet approaches the reed switch, it will actuate the reed switch contact point to create an open or close circuit. We can apply such on-off output signals to reach liquid level controlling and monitoring purpose. The figures below show the float orientations on Normal Open & Normal Close.

• Multiple points measuring, multiple level points are available for custom built.
• It uses the magnet to actuate the reed switch without any extra electric power source. Each reed switch is durable for operation life reaching 2 million times.
• output signal wiring are simplified in same junction box (housing) to economize the external wiring construction. The housing protection rating up to IP65

Rotating Paddle Level Switch

Stepper motor rotate the Paddle slowly An encoder coupled to the paddle shaft produces electrical pulses during its
rotation. The pulses are monitored by a microcontroller to monitor its movement. Paddle rotation stops when the
material covers it. The microcontroller gets signal from the encoder about the material presence and signal is processed
to derive potential free contacts. The microprocessor continuously checks the material presence. The paddle shakes and
vibrates to discard the built up material ensuring the material has receded and paddle is free. There after the output
status is changed and motor starts rotating smoothly again waiting for the level to come.


No Clutch, No Gear, No Spring, Flexible coupling (optional as per application), Robust, dust and watertight housing, Extended Probe possible, Sealed bearings, Interchangeable paddle assemblies, Fail safe switch selectable, Time Delay – Field Selected.

level transmitter

Level Transmitters

Level transmitter is a device used in industrial and commercial applications to measure and monitor the level of liquid or solid materials in tanks, vessels, and other types of containers. It is an essential tool in many industries such as oil and gas, chemical processing, food and beverage, and water treatment. Level transmitter works by measuring the hydrostatic pressure of the material in the container. The transmitter consists of a sensing element, which is typically a pressure sensor or a capacitance probe, and a transmitter unit that converts the signal from the sensing element into a readable output, such as a current, voltage, or digital signal.

Radar Level Transmitter

Radar level transmitters are widely used in various industries to measure the level of liquids, solids, and slurries in tanks, vessels, and other containers. They provide accurate and reliable level measurements, making them a popular choice for process control and inventory management. In this guide, we will delve into the working principles, types, applications, and benefits of radar level transmitters.


Narrow beam focusing 3° provide accurate and reliable measurement in bulk-solid with dust, or Large range of water.

The antenna options permit to measure distances up to 15 m for solid. (depends on medium/dielectric constant)

Default thread connection, thread/flange/high temp version are customizable.

Capacitance Level Sensor/Transmitter

Capacitance Level Sensor/Transmitter is a compact, low cost microcontroller based level transmitter with analogue output designed to measure the level of various non viscous, non conductive fuel oils, such as Diesel. Measuring range is 0.2 to 2.5 M for rod probe version. The probe forms an electrical capacitor with the grounding still
well, provided on the sensing rod. An initial capacitances exists between the electrode and the steel well. When the probe become covered with material to be measured the capacitances will increase and change will be measured and converted into an analogue output signal proportional to the level change.


Fast and Easy Installation, Pre calibrated for each probe length (sight calibration possible, easy), No effect of turbulence in the tank, High Reliability, Suitable for the highly dusty environment, Provides economical solutions.

Hydrostatic Level Transmitter

Hydrostatic level transmitter is a type of pressure sensor used to measure the level of liquids in various applications. It operates on the principle of hydrostatic pressure, which is the pressure exerted by a fluid at rest due to the weight of the fluid above it. The hydrostatic level transmitter consists of a sensing element, usually a diaphragm or a membrane, and a pressure transducer. The sensing element is in contact with the liquid whose level is being measured. As the liquid level changes, the hydrostatic pressure exerted on the sensing element also changes.

Fuel Level Transmitter

Fuel level transmitters are essential devices used to measure and monitor the level of fuel in tanks, providing accurate information for fuel management and control. Whether in automotive, marine, or industrial settings, fuel level transmitters play a crucial role in optimizing fuel consumption, preventing fuel theft, and ensuring the smooth operation of fuel-dependent systems. In this comprehensive guide, we will explore the working principles, features, applications, and benefits of fuel level transmitters.

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