|
|
Edward Lowton
Editor |
|
| Home> | Plant, Process & Control | >Sensors and instrumentation | >When space is tight, level measurement shouldn't be a compromise |
When space is tight, level measurement shouldn't be a compromise
10 September 2026
IN MANY process plants, the conditions for instrumentation can be challenging. Compact tanks with small process connections can make it difficult to install a level sensor without compromising measurement performance - particularly when turbulence, foam or changing product characteristics are also involved.

The challenge is to achieve reliable, accurate level measurement while working within tight physical constraints. Getting this right can mean better process control, less product waste and fewer maintenance interventions, without having to redesign existing infrastructure.
Precision you can trust
Accurate level measurement is essential for maintaining product quality, recording inventory and ensuring consistent production. But achieving accurate readings can become more difficult when vessels are small, process connections are restricted or the product has a low dielectric constant or changing media.
Free-space radar provides a non-contact approach that can help overcome some of these challenges. The Micropilot FMR43 uses this technology to deliver highly accurate level readings of up to ±1 mm. The sensor is designed for measuring ranges of 100mm to 15 metres, making it suitable for everything from compact process vessels to larger storage tanks. Even in applications with turbulence, fast level changes or mixing, the FMR43 continues to provide stable and repeatable measurements.
Reliable performance in challenging applications
Many level measurement technologies struggle with foam, condensation, changing product characteristics or obstacles in the vessel. The Micropilot FMR43 addresses these challenges through advanced radar technology that provides dependable measurements in dynamic process conditions.
The choice of radar frequency can make a difference, particularly where installation space is restricted. The Micropilot’s 180 GHz version, for example, offers an exceptionally narrow beam that can help reduce unwanted reflections from internal obstacles and make accurate measurement possible despite small process connections.
Designed for hygienic industries
Space constrains are only part of the challenge in the food & beverage and life sciences industries. Instrumentation must also meet demanding hygiene and product-integrity requirements.
The Micropilot FMR43’s design supports industry hygiene standards and features materials suitable for all industries. The sensor is available with hygienic process connections and materials such as PTFE, PEEK and 316L stainless steel, allowing it to integrate seamlessly into existing process systems. The EHEDG certified design and material traceability help manufacturers meet regulatory requirements while simplifying validation procedures.
Making verification part of routine maintenance
For maintenance teams, knowing that a level measurement can be trusted is just as important as achieving accuracy in the first place. Traditional calibration and inspection routines can require equipment to be taken out of service, adding time and potentially disrupting production.
Traceable verification provides an alternative approach. The Micropilot FMR43 incorporates Endress+Hauser’s Heartbeat Technology, enabling traceable verification of device performance without interrupting the process. This helps maintenance teams verify and document instrument health while reducing unnecessary inspections and supporting predictive maintenance strategies.
Heartbeat Technology Radar Accuracy Index (RAI) is a simple to use tool that assesses the reference accuracy of a Micropilot during operation. Heartbeat Technology’s patented verification concept with RAI is third-party attested (TÜV) and traceable according to ISO 9001. This allows users to extend calibration intervals, increase confidence in their radar measurement and fulfil traceability requirements.
Faster installation and simple commissioning
Commissioning new instrumentation shouldn’t be complicated. Endress+Hauser has focused on making the Micropilot FMR43 easy to install.
Guided setup wizards simplify configuration, reducing commissioning time and minimising the possibility of errors. Users can commission and operate the device using Bluetooth connectivity together with the SmartBlue app, allowing convenient and secure remote access. Output options include 2-wire 4-20mA HART or IO Link, making integration with modern automation systems straightforward, supporting digital plant initiatives and Industry 4.0 strategies.
A smart investment for modern processing plants
As manufacturing facilities continue to embrace automation and digitalisation, selecting the right instrumentation becomes increasingly important. The Endress+Hauser Micropilot FMR43 offers an ideal combination of precision, hygienic design, ease of use and intelligent diagnostics, making it a valuable candidate for any hygienic process application.
If you’re looking for a compact, high-performance radar level sensor designed specifically for hygienic industries, the Endress+Hauser Micropilot FMR43 is ready to meet the challenge - helping your operation achieve greater accuracy, improved efficiency and confidence in every measurement.
For more information, please visit Micropilot FMR43 - radar sensor for hygienic processes | Endress+Hauser
- Asset management in hazardous areas
- Avoiding errors when designing safety systems
- Bringing connectivity to existing systems
- Digitalisation helping to drive growth
- Hermes technology award winner
- Meters, loggers and software
- Consultancy services
- Instruments for flow measurement
- Level measurement solution relieves the pressure
- Thermometer portfolio
















