Sigrist
PhaseGuard ST 40 – Reliable phase detection when timing matters
When your process depends on detecting phase transitions at the right moment, measurement uncertainty quickly turns into product loss.
PhaseGuard ST 40 is designed to give you reliable, real-time detection of phase changes – so you can act at the right time and maintain control of your process.
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Detect phase transitions before they impact your process
In many applications, phase changes happen quickly and are not always visible. Delayed or inaccurate detection can lead to mixing of products, loss of valuable media, or unstable operation.
With PhaseGuard ST 40, you can continuously monitor phase transitions and respond immediately when changes occur. This allows you to separate phases more precisely and reduce unnecessary losses.
Built for stable performance in real process conditions
PhaseGuard ST 40 is developed for continuous operation in demanding environments, where reliability and low maintenance are essential.
The instrument is based on an optical measurement principle with a seal-less design, which reduces wear and minimizes the need for service. Combined with robust materials such as sapphire windows, this ensures long-term stability – even under fluctuating process conditions.
In practice, this means you can rely on consistent measurement without frequent recalibration or intervention.
Easy integration into your control system
PhaseGuard ST 40 is designed to fit into existing process environments without unnecessary complexity.
The instrument supports standard industrial outputs such as 0/4–20 mA, as well as digital communication options including Modbus, Profinet, and other fieldbus protocols. Local display and interface options also make it easier to configure and monitor directly at the installation point.
Designed for applications where phase control is critical
PhaseGuard ST 40 is widely used in applications where correct phase detection directly affects process performance:
- In breweries, you can detect transitions between beer, yeast, and water during separation and dosing
- In separator processes, you can monitor phase boundaries and optimize operation
- In industrial liquid processes, you can identify product changes and avoid cross-contamination
- In dosing and recovery systems, you can ensure correct switching between media
What reliable phase detection means for your operation
With accurate and stable phase monitoring, you gain better control of your process:
- Reduced product loss because phase transitions are detected at the correct moment
- Improved process stability through consistent and repeatable switching
- Better utilization of raw materials by minimizing mixing between phases
- Lower maintenance requirements due to seal-less design and robust construction
- Reliable operation over time with stable optical performance
Work with Norsk Analyse to implement the right phase measurement approach
At Norsk Analyse, we help you evaluate how phase detection should be implemented in your process – not just which instrument to choose.
With PhaseGuard ST 40, you get a reliable measurement solution. With the right application knowledge, you get a solution that works in practice.
Contact us for a technical discussion about phase monitoring in your process.
These products are used within these applications
Food and Beverages
Ensure stable production and consistent product quality with reliable monitoring solutions for food and beverage processes.