Food, Beverage and Dairy
Food, Beverage and Dairy

NSL-F, NSL-FR Continuous level sensor

Level Sensors, IO-Link

Potentiometric, continuous level measurement for metallic vessels up to 3000 mm for process temperatures up to 140°C/284°F

  • Optimized resource efficiency through precise measurement even for demanding applications with foam, pasty or highly adhesive media
  • Flex-Hybrid: Digital IO-Link and analogue 4…20 mA parallel
  • Automatic adaptation to media, no adjustment required when changing media
  • Extremely fast response time < 100 ms for filling processes
  • Simple User Interface mit Display
  • Hygienic alternative to float sensors due to easily sterilisable installation solution
  • Hygienic thread G1/2″ and G1″ (CLEANadapt), Tri-Clamp 1” – 3“ as well as Varivent® type F and N
  • Ideal for adhesive and pasty media
  • For media with conductivity < 50 μS/cm
  • Installation in vessels at the top, the side or from below
  • Modular design: configurable from the low-cost basic version to the high-end model
  • All details about IO-Link properties, parameters, diagnostics, events and more can be found in the IODDViewer. Just click here.
  • Add-On Instructions (AOI) are available at

Replacement product for NSK-157, NSK-358

Key Benefits:
Product Information:

Technical Specification

Process Connection CLEANadapt | Tri-Clamp | Varivent
Wetted material Stainless Steel 1.4404 (316L) Ra≤0,8 μm | PEEK
Measuring range 50...3000 mm
Accuracy < 1% of rod length
Available versions Compact | Remote
Temperature range process -10…140 °C (14...284 °F)
Temperature range CIP/SIP 143 °C (289 °F) / max. 120 min.
Operating pressure 16 bar max.
Communication 4..20 mA | IO-Link
The values shown are the performance limits within the product line. The product-specific data for each individual configuration can be obtained from the product information



Key Benefits:
Product Information:
User Manuals:

Process Connection

Configuration and 3D Data