Next-generation in-line pH measurement for improved process control

Accurate and reliable pH measurement plays an important role in process control, helping manufacturers maintain product consistency, optimise production and reduce process variation. In hygienic processing applications, instrumentation must also withstand high temperatures, rigorous clean-in-place (CIP) cycles and continuous operation.

The trusted METTLER TOLEDO InPro X1 HLS has evolved, introducing the InPro X1 SLS, the latest generation of food-safe, in-line pH sensors, engineered to perform reliably in process temperatures of up to 100°C.

The glass-free sensor is a digital, food-safe, in-line pH sensor that is designed to withstand clean-in-place processes. With all materials selected for food or beverage contact applications, it has a hygienic design and meets all major food regulations, including 3A, EHEDG, EC1935/2004, ATEX and FM.

The InPro X1 SLS combines robust performance, low measurement drift and long sensor life. These features can help reduce handling, calibration and replacement costs while supporting consistent, dependable process control.

Safer pH measurement without glass contamination risk

Traditional glass electrodes can present a contamination risk if the sensing element breaks during production, cleaning or maintenance. The InPro X1 SLS addresses this concern with patented X-Chip™ technology.

Instead of using fragile glass sensing elements, the InPro X1 SLS uses an unbreakable chip to measure pH. This design helps eliminate the possibility of glass entering the process, supporting safer production and reducing the risk of product loss or costly recalls.

For food and beverage manufacturers, this provides an important additional layer of protection for product quality, regulatory compliance and brand reputation.

Reliable performance at temperatures up to 100°C

One of the key enhancements of the InPro X1 SLS over the previous InPro X1 HLS is its ability to operate at process temperatures of up to 100°C.

This higher temperature rating gives manufacturers greater flexibility when selecting an in-line pH sensor for demanding applications. It is particularly valuable for processes where elevated temperatures are part of production, cleaning or sanitisation procedures.

By maintaining reliable performance in higher-temperature environments, the InPro X1 SLS helps manufacturers support stable process control without compromising food safety or operational efficiency.

Designed for demanding clean-in-place processes

Clean-in-place systems are essential for maintaining hygiene in food and beverage production. However, repeated exposure to rigorous cleaning cycles can place significant demands on process instrumentation.

Both InPro X1 SLS and HLS models are designed to withstand demanding CIP processes and offer exceptional durability. Its robust construction supports reliable operation in challenging production environments, while its sensor life can be up to 50% longer than conventional glass electrodes.

Longer sensor life can help reduce the frequency of sensor replacement, minimise maintenance interruptions and lower the total cost of ownership. It also supports more consistent pH measurement throughout the sensor’s operating life.

Reduce maintenance with ISM technology

The InPro X1 SLS is supported by ISM™ digital sensor technology, providing smarter tools for monitoring sensor condition and managing maintenance.

ISM technology offers:

• predictive sensor diagnostics
• offline calibration
• real-time sensor health monitoring
• improved visibility of sensor performance
• simplified maintenance planning.
   

Predictive diagnostics help operators identify potential sensor issues before they affect production. Offline calibration enables sensors to be calibrated away from the process, helping reduce downtime and simplify maintenance activities.

Real-time sensor health monitoring also gives operators greater insight into sensor condition, helping them make more informed decisions about cleaning, calibration and replacement.

Improve process reliability and product quality

Accurate pH measurement is important across many food and beverage processes. It can influence product consistency, taste, shelf life, safety and compliance. If pH measurement becomes unstable or unreliable, manufacturers may face increased waste, rework, downtime or product quality issues.

The InPro X1 SLS is engineered to deliver low drift and reliable measurement performance. Combined with the durability of X-Chip technology and the diagnostic capabilities of ISM, the sensor helps manufacturers maintain greater confidence in their in-line pH measurement.

This can support:

• more consistent production
• improved product quality
• reduced process variation
• lower maintenance requirements
• greater protection against contamination risks
• improved operational efficiency.

A food-safe pH sensor for demanding applications

The InPro X1 SLS is designed for food and beverage manufacturers that need dependable in-line pH measurement in challenging process conditions. Its combination of glass-free X-Chip technology, high-temperature performance, CIP durability and intelligent diagnostics makes it a practical choice for modern hygienic processing environments.

The sensor’s 100°C operating capability, extended sensor life and ISM diagnostics can also help manufacturers improve equipment availability and achieve more consistent process performance.

For manufacturers looking to upgrade their in-line pH measurement, the METTLER TOLEDO InPro X1 SLS provides a new option for reliable, glass-free measurement in demanding food and beverage process applications.

Learn more about the InPro X1 SLS pH sensor or contact the METTLER TOLEDO team via 1300 659 761 or info.mtaus@mt.com.