HNL60-A Capacitive Level Switch for Hygienic & Industrial Media

The HNL60-A capacitive point level switch uses intelligent frequency-scanning technology for reliable detection of a wide range of media. It supports various process connections and suits both hygiene-critical equipment and general industrial applications. The PEEK sensing part keeps particle generation and residue retention low, with a smooth Ra ≤ 0.8 μm surface for hygienic service.

INQUIRY

Compact Point Switch for Hygienic and Industrial Tanks

The switch suits healthcare and hygiene-critical equipment, food and beverage processing, pharmaceutical and biotech process lines, dairy and CIP circuits, small tanks and pipes, dosing and filling systems, medical-device fluid containers, laboratory and analytical instruments, semiconductor high-purity fluid lines, water and chemical dosing tanks, OEM compact equipment, and industrial point-level detection.

Good fit: healthcare and hygiene-critical equipment, food and beverage processing, pharmaceutical and biotech process lines, dairy and CIP circuits, small tanks and pipes level detection, dosing and filling systems, medical device fluid containers, laboratory and analytical instruments, semiconductor high-purity fluid lines, water and chemical dosing tanks, OEM compact equipment, industrial point level detection.

Is HNL60-A Suitable for Your Application?

Choose HNL60-A when:

• You need a compact point-level switch for liquid media in small tanks, pipes, dosing or filling systems.

• The medium dielectric constant is above 1.5, and hygiene or cleanability matters (PEEK, Ra ≤ 0.8 μm).

• A PNP or NPN switching output with selectable NO/NC logic matches the PLC or indicator.

Confirm with us first when: the medium dielectric constant is below 1.5, the medium temperature exceeds 80 °C, the medium attacks PEEK, or a sanitary clamp / special process connection is required.

Frequency-Scanning Capacitive Principle

Stable detection on coating-prone products

The frequency-scanning method measures the change in capacitance at the sensing tip when the medium covers it, with a 0…10 s adjustable damping time to stabilize the reading. Hysteresis and repeatability are both ±1 mm; typical response 0.1 s, maximum 0.2 s.

Hygienic sensing materials

The wetted sensing part is PEEK with Ra ≤ 0.8 μm, reducing particles and residue retention in hygiene-critical lines. The sealed metal can provides EMC protection to EN 61326.

Flexible output and connection

PNP or NPN output, NO or NC switching logic. M12×1 aviation plug or direct outgoing line with 1 m or 2 m lead; standard type or ED sealing-ring version.

Technical Specifications

Wiring

Both NPN and PNP versions use the same brown / black / blue assignment; configure PNP or NPN and NO/NC to match the PLC input.

Selection Code

Mechanical Dimensions

Stainless cylindrical body with G1/2 process thread, PEEK sensing tip and rear M12×1 aviation plug. Probe length matches L030 / L035 / L050 / L100 or the custom LXX; the ED version carries the sealing ring.

Installation Notes

Mount so the sensing tip sits at the target level, clear of inlet flow, turbulence and wall buildup. Position the tip to minimize residue around the sensing end; in CIP or cleanable service, confirm the PEEK surface suits the cleaning chemicals. Keep the probe within the rated medium temperature and dielectric range, and verify switching on site with the actual medium.

Typical Applications

• Food and beverage: tank, pipe and filling-system point-level detection.

• Pharma and biotech: hygiene-critical process lines, dairy and CIP circuits.

• Water and dosing: water and chemical dosing tanks, small OEM equipment.

• Medical and analytical: fluid containers, laboratory instruments, high-purity fluid lines.

What to Send Us for Selection

Send: medium and dielectric constant, medium temperature, tank/pipe size and available opening, required probe length, output preference (PNP/NPN, NO/NC), connection (M12 plug or cable, lead length), and whether an ED sealing ring is required. We will confirm the selection code before quoting.

Frequently Asked Questions

Can it detect low-dielectric liquids?

The switch is rated for media with dielectric constant above 1.5. Below that range detection may be unreliable; send us the medium and dielectric value so we can confirm suitability.

How does frequency scanning stabilize detection when hygienic products coat the probe?

Frequency scanning measures the capacitive change at the tip, and the 0…10 s adjustable damping smooths coating-related drift. The smooth PEEK surface reduces residue adhesion; for heavy buildup, confirm the medium behavior before ordering.

Is PEEK suitable for corrosive cleaning media?

PEEK is the wetted sensing material with Ra ≤ 0.8 μm. Check compatibility with specific CIP/SIP chemicals, concentrations and temperature; aggressive acids or solvents may require a different material.

Can PNP or NPN output operate an overflow interlock?

Yes. Choose PNP or NPN to match the PLC input, and set NO or NC for the fail-safe overflow or dry-run interlock logic.

What mounting position minimizes residue around the sensing tip?

Mount the tip clear of inlet jets, turbulent pockets and wall buildup, with the sensing end exposed to the liquid path. Avoid crevices where product can collect; review the orientation during installation for cleanability.

Datasheet Download

HNL60-A Capacitive Level Switch Datasheet (PDF) — view all product manuals on our Download page »

Need a Hygienic Compact Level Switch?

Send us the medium, dielectric, temperature and opening. We will confirm the probe length, output and selection code before we quote.

Send us your application details »