Prominent – DULCOMETER diaLog C: Human-centered UI/UX design for industrial operation
How to design a complex industrial control so that it is intuitive, efficient, and user-friendly?
For the new 1-channel controller from Prominent DULCOMETER diaLog C we have comprehensively solved this challenge: With human centered design, a global remote usability test, interactive click dummies in Figma, precise screen and icon design as well as a scalable design system. This creates an operating concept that clearly structures processes, facilitates user guidance, and remains flexible for future requirements.
👉 Read on to see how we implemented the project holistically – from concept to design system.
About the product
The new DULCOMETER diaLog C single-channel controller is a versatile device for recording all measurement parameters of ProMinent sensors. Depending on the application, it can be used both as a transmitter as well as single-channel 2-way controller be used – which saves time and reduces operating costs.
Not only because it controls two pumps with little effort and adjusts dosages safely and precisely—but also because it offers real support in everyday life. For example, through its graphical LED display, the multilingual and intuitive menu navigation as well as numerous opportunities for data transmission and networking. Especially practical is its intelligent disturbance processing. In addition, Dialog C enables automations and can be used as alarm, limit switch or to control of motor metering pumps and solenoid valves serve.
The challenge
For the new DULCOMETER dialog C display system from Prominent, we faced a special technical and user-centered challenge:
The industrial display operates with a comparatively low resolution, which is often common in harsh industrial environments—while at the same time, it should be intuitive, efficient, and visually clear for users. Added to this was the exclusive control over a membrane keyboard without touch function – a control concept that requires precision and visual support to a special degree.
Our solution approach – Human Centered Design
For the DULCOMETER diaLog C, we have oriented the entire UX process towards user needs. In doing so, the holistic optimization of the user experience in the center.
Operating concept & interaction structure
We developed a well-thought-out information and interaction concept that clearly structures processes, enables intuitive operation paths, and significantly simplifies user guidance.
Remote usability testing worldwide
To validate the solution in a practical way, we conducted international remotely conducted usability tests with real users through – over an interactive click dummy in Figma. In this way, we were able to identify potential improvements early and test them directly in the simulation.
Click dummy & Simulation in Figma
The interactive prototype realistically reflected the later usage. This made it possible to test operating logic and processes in a practical manner, even before the physical system was implemented.
Pantalla y diseño de iconos
We developed a clear, easy-to-understand screen and icon design, which supports navigation while ensuring visual consistency across all platform components.
Design System
One modular design system ensures that DULCOMETER diaLog C not only looks good once but can also be consistently expanded in the future. It enables efficient further developments and guarantees a consistent user experience.
Result
The new single-channel controller DULCOMETER diaLog C from Prominent impresses with:
clear, intuitive structure and navigation
Practice-oriented user guidance through validated UX design
consistent visual design across all surfaces
flexible, scalable design system for future products
