Hongnuo (shenyang) General Machinery Co., Ltd. is one of the most reliable manufacturers and suppliers of capacitive bin level switch in China. Welcome to buy high quality capacitive bin level switch at competitive price from our factory. We also accept customized orders.
Specs at a glance
| Parameter | Value |
|---|---|
| Measuring principle | Capacitive (frequency scanning) |
| Media dielectric constant | DC > 1.5 |
| Repeatability | ±1mm |
| Hysteresis | ±1mm |
| Response time | 0.1s (typ.) / 0.2s (max.) |
| Damping time | 0-10s (adjustable) |
For more parameters, please click on "Specifications".
3 things that make this different
1. Smart frequency scanning - adapts to any media automatically
Traditional capacitive switches need calibration when media changes. The HNL60-A scans frequencies continuously, locks onto the media's natural frequency, and detects level changes with ±1mm repeatability. No calibration. No adjustment. Switch it on. It works.
2. Hygienic design - PEEK and 316L wetted parts
PEEK (polyetheretherketone) is FDA-compliant, chemically resistant, and withstands steam cleaning. 316L stainless steel for the wetted parts. Surface roughness Ra ≤ 0.8μm - no crevices for bacteria to grow. Designed for food, beverage, and pharmaceutical applications.
3. Compact - fits where others don't
Probe lengths from 30mm to 100mm. Total length as short as 135mm. M12 connector or direct cable outlet. Install it in small pipes, hoppers, or tight machine spaces. No clearance issues.
Rotary Paddle vs RF Admittance vs Capacitive - which one do you need?
| Rotary Paddle (HNL40-A) | RF Admittance (HNL50-A) | Capacitive (HNL60-A) | |
| Principle | Mechanical - paddle stops rotating | RF admittance - measures admittance change | Smart frequency scanning - measures capacitance change |
| Media types | Solids (powders, granules) | Liquids, slurries, solids, interfaces | Liquids, pastes, granular media |
| Hang-up / coating immunity | N/A (mechanical contact) | Shield electrode eliminates false alarms | Frequency scanning adapts automatically - ignores buildup |
| Moving parts | Yes - motor, bearing, paddle | No | No |
| Surface finish | - | - | Ra ≤ 0.8μm (hygienic grade) |
| Wetted materials | 304 / carbon steel | 304 / 316L / PFA | PEEK / 316L |
| Temperature | Up to 1300°C | Up to 800°C | -20°C ~ 80°C |
| Pressure | Normal | Up to 10MPa | Normal |
| Output | Microswitch SPDT 5A | Relay DPDT 5A | PNP/NPN transistor |
| Size | Large | Medium | Compact |
| Price | Low | High | Medium |
| Best for | Simple solids silos, low cost, high reliability | Harsh conditions, sticky media, high temp/pressure | Tight spaces, hygienic applications, food/pharma lines |
Quick selection guide:
Need a simple, low-cost switch for a grain silo? → Rotary paddle (HNL40-A).
Need to measure sticky slurry in a high-temp pressure vessel? → RF admittance (HNL50-A).
Need a compact, hygienic switch with no calibration for a food or pharma line? → Capacitive (HNL60-A).
Where to use it
| Food & beverage | Level detection in tanks, hoppers, and pipelines. PEEK/316L wetted parts meet food contact requirements. Compact design fits tight process lines. |
|---|---|
| Pharmaceutical | Sanitary level control in mixing vessels and storage tanks. Ra ≤ 0.8μm surface finish prevents bacteria growth. CIP/SIP compatible. |
| Chemical / fine chemical | Corrosive or viscous media detection. PEEK resists most chemicals. No calibration needed when switching between products. |
| Bulk solids / powders | Powder level detection in small hoppers and dosing equipment. Compact size fits where longer probes won't. |
| Packaging machines | Liquid and paste level detection in filling machines, dosing equipment, and packaging lines. Small footprint fits inside machine frames. |
HNL60-A Capacitive Level Switch - Smart Frequency Scanning
- PEEK/316L wetted parts | Ra ≤ 0.8μm surface finish
- No calibration needed | Adapts to any media automatically
- PNP/NPN output | Compact design
- Food/pharma/industrial applications
Send us your media type, temperature, tank size, and mounting connection - we'll recommend the right model and quote within 24 hours.
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HNL60-A Capacitive Level Switch Parameters |
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|
Specific Parameters |
Value / Description |
|
Measurement Principle |
The HNL60-A capacitive level switch is based on the principle that capacitance changes with the dielectric constant of the medium. The probe and the container wall (or the built-in reference electrode) form the two poles of the capacitor. When the liquid level rises, the capacitance changes abruptly as the high-dielectric-constant liquid (such as water with a dielectric constant of approximately 80) replaces the low-dielectric-constant air (with a dielectric constant of approximately 1). The built-in electronic circuitry detects this change, and when a preset threshold is reached, it triggers the switch to activate, outputting an on/off signal. |
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Product Type |
Standard type |
|
Insertion Depth |
20mm,30mm,35mm,50mm,100mm,Customizable |
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Measurement Accuracy |
±1mm |
|
Output Signal |
NPN,PNP |
|
Power Supply |
24VDC |
|
Mechanical Interface |
G1/2 |
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Electrical Interface |
Hirschmann/connector |
|
Material |
304, PEEK |
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Temperature Range |
0～100℃ |
|
Protection Level |
IP65/IP67 |
|
Certificate |
CE certified |
