Level Measurement

Industrial Level Transmitters for Liquids and Bulk Solids

GALLOP provides industrial level transmitters for continuous level measurement in water tanks, wastewater systems, chemical storage vessels, reservoirs, and bulk material silos. Liquid level transmitter includes radar, ultrasonic, and hydrostatic level transmitters designed for different measurement ranges, media characteristics, and installation conditions.

From non-contact liquid level monitoring to pressure-based measurement in wells and tanks, GALLOP helps industrial buyers find suitable instrumentation for process control and level monitoring systems.

Industrial Level Transmitter Types

Selecting the right level measurement technology depends on the material being measured, tank geometry, surface conditions, and operating environment.

Ultrasonic Level Transmitters

Ultrasonic level transmitters use sound waves to measure the distance between the sensor and the material surface.

Because the measurement is non-contact, ultrasonic instruments are useful for many water tanks, wastewater treatment facilities, pumping stations, and storage applications.

These non-contact level measurement instruments are generally best suited to conditions where vapor, foam, turbulence, and internal tank structures do not prevent a reliable ultrasonic echo.

Explore our ultrasonic level transmitter.

Radar Level Transmitters

Radar level transmitters use electromagnetic signals to determine material level without requiring direct contact with the measured surface.

GALLOP offers 80 GHz radar level measurement products for industrial applications involving liquids and suitable bulk solids.

Compared with ultrasonic technology, radar is often preferable when changes in vapor conditions or process temperature make acoustic measurement difficult.

The actual measuring performance depends on factors such as material dielectric properties, antenna selection, vessel geometry, and the operating environment.

Explore our 80 GHz radar level transmitter.

Hydrostatic Level Transmitters

Hydrostatic level transmitters calculate liquid level from the pressure generated by the liquid column.

They are commonly used for water wells, reservoirs, wastewater tanks, and other liquid monitoring points where pressure-based measurement is appropriate.

Unlike non-contact level sensors, hydrostatic instruments interact with the measured liquid and require appropriate wetted materials.

Fluid density and its variations must also be considered when converting pressure into liquid level.

Explore our hydrostatic level transmitter.

Radar vs. Ultrasonic vs. Hydrostatic Level Measurement

Selection Factor	Ultrasonic	Radar	Hydrostatic
Measurement Principle	Acoustic time of flight	Electromagnetic wave reflection	Liquid column pressure
Contact with Medium	Non-contact	Non-contact	Contact
Typical Applications	Water tanks, wastewater wells	Process tanks, storage vessels, silos	Wells, reservoirs, liquid tanks
Vapor and Temperature Changes	Can affect measurement	Generally less affected by vapor temperature	Depends on fluid density and sensor rating
Foam or Surface Agitation	May affect echo quality	Performance depends on application	Less sensitive to surface conditions
Bulk Solids	Application-dependent	Suitable models available	Not applicable
Important Installation Factors	Blind zone and acoustic path	Antenna, beam and vessel internals	Immersion position and liquid density

There is no single level transmitter that is ideal for every industrial application. The most suitable technology depends on the process conditions and measurement objectives.

How to Select an Industrial Level Transmitter

Measurement Medium and Surface Conditions

Start by identifying whether the material is clean water, wastewater, an industrial chemical, slurry, or a bulk solid.

Also consider whether the surface is calm, turbulent, foamy, dusty, or affected by vapor.

These conditions influence which measurement principle will provide consistent readings.

Measurement Range and Tank Geometry

Confirm the tank height, maximum filling level, required measurement span, and mounting position.

Non-contact level transmitters require sufficient clearance for their measurement path and blind zone. In narrow tanks or vessels containing internal structures, additional installation considerations may apply.

Operating Pressure, Temperature and Material Compatibility

For industrial vessels, the pressure and temperature ratings of the selected transmitter must match actual process conditions.

When wetted components are involved, choose appropriate materials for the liquid being measured.

Signal Output and System Integration

Industrial liquid level transmitters can be integrated with PLCs, monitoring systems, and process automation equipment using appropriate signal interfaces.

GALLOP offers level measurement models with configurations including 4–20 mA, HART, and RS485, depending on the product.

Signal requirements should be confirmed for the selected instrument.

Applications of GALLOP Level Transmitters

Water and wastewater treatment: Continuous level monitoring in clear-water tanks, equalization tanks, pumping stations, and wastewater treatment systems.

Chemical storage and process tanks: Monitoring liquid inventories and process levels while considering chemical compatibility, pressure, and temperature.

Rivers and reservoirs: Monitoring water level changes for water resource management and environmental observation.

Bulk material storage: Radar measurement for suitable powders and bulk solids in industrial silos.

Industrial automation equipment: Level data for pump control, inventory management, and process monitoring systems.

Why Choose GALLOP for Industrial Level Measurement?

Since 2005, GALLOP has developed and supplied industrial instrumentation for international customers.

We provide practical support throughout instrument selection and procurement:

Radar, ultrasonic, and hydrostatic level measurement products
Technical selection based on actual site conditions
OEM/ODM customization of supported product features
Factory inspection and quality control
Assistance with installation and operation
Technical support for long-term instrument use

GALLOP can also support the integration of multiple measurement instruments into customized monitoring configurations.

Frequently Asked Questions

What is the difference between a level sensor and a level transmitter?

A level sensor detects the level of a liquid or solid material. A level transmitter processes the measurement and provides a signal that can be displayed or transmitted to a control system. The terms are sometimes used interchangeably in industrial applications.

Which level transmitter is best for wastewater treatment?

Ultrasonic, radar, and hydrostatic level transmitters may all be suitable. The preferred option depends on the tank design, foam, turbulence, contamination, installation access, and process conditions.

Is radar more suitable than ultrasonic for chemical tanks?

Radar can be preferable when vapor or process temperature variations interfere with ultrasonic measurement. However, material dielectric properties, tank design, chemical compatibility, and the selected device's specifications must also be considered.

Can GALLOP customize industrial level transmitters?

Yes. GALLOP offers OEM/ODM services and technical selection support. Available customization depends on the product model and the required configuration.

Find the Right Level Transmitter for Your Application

Planning a new level measurement system or replacing an existing instrument?

Tell GALLOP what material you measure, your tank dimensions, operating conditions, installation method, and signal requirements. Our team can help select an appropriate industrial level transmitter and prepare a quotation.