Contact sensor head for short distances

PAS-H-B04 contact NIR sensor head for pipes and chutes

Use our PAS-H-B04 probes with our compact or scalable NIR spectrometer for process analytics over short distances. 

Contact NIR probe for contact and short distances measurements

The PAS-H-B04 contact sensor is designed for easy integration into piping, hoppers, or storage tanks. In addition to an integrated 10-W tungsten-halogen light source for sample illumination, the sensor head features fully automatic system calibration.

The measuring head is ideally suited for solid, liquid, or paste-like samples. Thanks to its compact size and low weight, the measuring head can be easily retrofitted into existing systems.

The contact measuring head is available in ATEX- and IECEx-certified versions.

Polytec PAS-H-B04 contact NIR sensor head in a stainless steel housing with fiber-optic connection

Hygienic design

Designed for cleaning and compliance with hygienic regulations in food and beverage and other industries.

Ex version

For hazardous environment, IECEx, ATEX and FM certified housings are available.

Get in touch with our experts

Our specialists will help you design the right NIR solution for your process – from dairy and edible oils to agriculture and polymer applications.

Highlights of the PAS-H-B04 Contact Sensor Head

Adjustable spot size 
Integrated reference
SMA 905 fiber-optic connector
Industrial protection class IP64 
Stainless steel housing with sapphire window 
Integrated 10 W tungsten-halogen lamp 

Applications for the NIR contact sensor head 

The PAS-H-B04 is designed for direct contact NIR measurements of solids and pasty materials. Mounted in mixers, extruders or conveyor systems, it provides precise and repeatable inline data even under demanding process conditions. With its compact, stainless-steel design and fiber-optic connection, this probe is robust and easy to integrate into industrial environments.

B04 contact sensor head with compact spectrometer (PCS).
Contact sensor head, pipe
Analyses in pipelines
Contact sensor head, bulk goods
Analyses on chutes & hoppers
Contact sensor head for short distances
Contact Sensor

Technical data and downloads

Reflection probe for measurement over short distances or in direct contact with the samples (tubes, chutes, funnels and more). Combines illumination and sensor unit compliant with food laws, ATEX and IECEX.

CriteriaValue
Measurement Distance0 - 50 mm
CalibrationAutomatic
Illumination10 W Tungsten
Housing Anodized aluminum with
stainless steel process adapter
Protection ClassIP66 / IP68
ConnectionSMA 905 optical fiber
AccessoriesVarious flanges and mounting devices

Get in contact with our experts and discuss your process monitoring demands and ideas

Contact person for NIR analyzers solutions

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