Product Overview
The Turck BI8U-M18E-AP6X-H1141 is a rugged inductive proximity sensor engineered for high-precision non-contact detection of metallic objects in demanding industrial environments. Featuring an M18 stainless steel housing with IP67/IP69K protection, this sensor is built to withstand harsh conditions such as dust, moisture, mechanical shocks, and high-pressure washdowns. It operates on a 10–30 V DC supply and delivers a configurable PNP or NPN output via a shielded M12 connector (AP6X variant). Designed for applications requiring repeatable accuracy and durability, the BI8U-M18E-AP6X-H1141 is ideal for automotive manufacturing, material handling, and food processing industries. Its compact design and advanced diagnostics ensure seamless integration into smart factory ecosystems.
Key Technical Parameters
- Sensing Range: 8 mm (for mild steel; reduced for non-ferrous metals).
- Supply Voltage: 10–30 V DC (±10%) with reverse polarity and surge protection.
- Output Type: Configurable PNP/NPN transistor (NO/NC), 200 mA max load current.
- Housing Material: Stainless steel (316L) with anti-corrosion coating.
- Operating Temperature: -25°C to +85°C (-13°F to +185°F).
- Protection Class: IP67/IP69K (dustproof, waterproof, and high-pressure resistant).
- Switching Frequency: Up to 1 kHz for rapid response in dynamic applications.
- Connector: M12 4-pin shielded (AP6X variant) with PUR cable (H1141 configuration).
- Certifications: CE, UL, cULus, RoHS, and REACH compliance.
Typical Applications
The BI8U-M18E-AP6X-H1141 excels in industrial automation scenarios requiring robust sensing solutions:
- Automotive Assembly: Detecting metal components in robotic welding, stamping presses, or conveyor systems.
- Packaging Machinery: Verifying the presence of metal lids, cans, or foil seals on high-speed filling lines.
- Food & Beverage: Monitoring stainless steel valves, mixers, or conveyor chains in sanitary washdown zones.
- Material Handling: Position feedback for automated guided vehicles (AGVs) or palletizing systems.
- Heavy Machinery: Ensuring safety interlocks for hydraulic cylinders or rotating equipment.
Its immunity to electromagnetic interference (EMI) guarantees stable performance near motors, inverters, or welding systems.
Competitive Advantages
- Extreme Durability: 316L stainless steel housing resists corrosion, chemicals, and mechanical stress.
- High Sensing Accuracy: Consistent 8 mm range with minimal hysteresis for reliable detection of small or thin targets.
- Quick Installation: Pre-wired M12 connectors and threaded design minimize setup time and maintenance.
- Flexible Configuration: Configurable output logic (PNP/NPN) adapts to diverse control systems.
- Long Lifespan: Hermetic sealing and robust construction reduce downtime in high-cycle operations.
Core Functionalities
The BI8U-M18E-AP6X-H1141 delivers advanced features for industrial reliability:
- Short-Circuit Protection: Automatic shutdown safeguards against wiring faults or overloads.
- Diagnostic LEDs: Dual-color indicators (green for power, yellow for output status) enable rapid troubleshooting.
- Temperature Stability: Maintains performance across extreme thermal conditions.
- IO-Link Compatibility (if applicable): Enables remote parameterization, diagnostics, and firmware updates.
- Vibration Resistance: Secure M12 connection ensures uninterrupted operation in high-vibration environments.
| Parameter | Specification |
| Product Type | Analog Inductive Sensor (Non-Flush Mount) with IO-Link |
| Model Breakdown | BI8U: Ø18mm Housing
M18E: Extended Temp. Range
AP6X: Analog 4-20mA + IO-Link
H1141: ATEX/IECEx Certification |
| Detection Target | Ferrous/Non-Ferrous Metals |
| Sensing Distance (S<sub>n</sub>) | 8 mm (Fe360 Steel) |
| Reduction Factor | 1.0 (Steel) / 0.45 (Stainless) / 0.35 (Aluminum) |
| Output Signals | Analog: 4-20 mA (3-Wire)
Digital: IO-Link v1.1 (COM2/3) |
| Operating Voltage | 10...30 V DC |
| Current Consumption | ≤ 30 mA (Analog Only) / ≤ 45 mA (IO-Link Active) |
| Linearity Error | ±1% Full Scale (20°C) |
| IO-Link Revision | v1.1.3 (IEC 61131-9) |
| Data Rate | COM2 (38.4 kbaud) / COM3 (230.4 kbaud) |
| Process Data Cycle | ≤ 2 ms |
| Housing Material | Nickel-Plated Brass (VP Version: Chemical-Resistant Coating) |
| Protection Rating | IP68 / IP69K (Immersion 1.5m/48h, 100 bar Washdown) |
| Electrical Connection | 5-pin M12 Male (A-coded) |
| Temperature Range | Operating: -40°C to +85°C
Storage: -50°C to +100°C |
| Hazardous Area Certs. | ATEX: II 1/2 GD Ex ia IIC T6 Ga/Gb
IECEx: Ex ia IIC T6 Ga/Gb
UKEX: Ex ia IIC T6 |
| Entity Parameters | U<sub>i</sub>: 28V, I<sub>i</sub>: 93mA, P<sub>i</sub>: 0.65W, C<sub>i</sub>: 22nF, L<sub>i</sub>: 1mH |
| Safety Ratings | SIL 2 (IEC 61508), PL d (ISO 13849-1) |
| EMC Compliance | EN 61000-6-2/6-3/6-4 |
| Response Time | Analog: 5 ms, IO-Link: 1.5 ms (PD Update) |
| MTTF<sub>d</sub> | > 100 years |
| Weight | 180 g |
Packaging & Shipping
Company Information
Xiamen ZhiCheng Automation Technology Co., Ltdit is a leading global supplier of control system components. We specialize in control systems and drives.
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With many years of experience in the industrial sector, we consistently deliver the highest quality of spare parts.which make sure that all this jobs are
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