NIR probes for various process spectroscopy applications
Different measurement situations require different probes to suit the application at hand. This is precisely why Polytec offers a selection of scan heads that can be used in direct contact with and even at a greater working distance from the goods being measured. Probes that can be immersed in the product to be analyzed are also available. Some sensors have already been combined with an illumination module and have an internal reference. Using a multiplexer system with fiber-optic switches, a spectrometer can be equipped with several probes which are used at different measurement points.
Got any questions?
Got any questions?
Whether in food production, feed and agriculture or on-harvester applications, Polytec NIR spectrometers deliver reliable real-time results. Our experts will help you identify the ideal setup for your process and application.
- Robust design for industrial use
- Resistant stainless-steel housings ensure reliable operation even in harsh production environments.
- Flexible probe concepts
- Contact and non-contact probe heads cover solids, liquids and pastes – perfectly adaptable to your process.
- Seamless integration
- Full compatibility with Polytec spectrometers and multiplexer systems for scalable process analytics.
From contact to non-contact NIR probe solutions
Polytec probes form the essential link between the NIR spectrometer and the process stream. They enable precise and reliable inline measurements of liquids, solids and pasty materials – whether through direct contact or at a defined distance. Designed with robust stainless-steel housings and fiber-optic connectivity, they are perfectly suited for industrial environments and ensure stable long-term operation.

PAS-H-A03 Distance Sensor Head
The PAS-H-A03 distance sensor head is a reflection sensor head that allows the user to carry out sample measurements at distances of between 150 and 600 mm. This makes it ideal for analyzing goods being measured on conveyor belts, for strip products and for similar applications.

PAS-H-B04 Contact Sensor Head
The PAS-H-B04 contact sensor head is a reflection sensor head which allows you to measure samples – which are being transported through the likes of pipes, chutes and funnels – over short distances.
