IFM GF711S Fail-Safe Inductive Sensor M12 0.5-4mm PNP IP67 SIL2

Overview
The IFM GF711S (GIFA4004-2PS/SIL2/V4A/US) is a fail-safe inductive sensor engineered to ensure machine safety in demanding industrial automation environments. Certified to EN 60947-5-3, IEC 61508, and ISO 13849 standards, this sensor meets Performance Level d (PL d) according to ISO 13849-1 and SIL 2 requirements according to IEC 61508. The sensor operates on the inductive proximity principle, detecting metal objects without physical contact. It features a non-flush mountable design with an enable zone of 0.5 mm to 4 mm and a safe switching-off distance of 6 mm. The sensor provides two PNP switching OSSD outputs (A1 and A2) for redundant, cross‑monitored safety signals, ensuring defined behaviour under fault conditions (PDDB) per IEC 60947-5-3.

Key safety characteristics include a response time of 1 ms for safety requests and when approaching the enable zone, a risk time of 20 ms, and a PFH (probability of dangerous failure per hour) of 1.0E-07. The housing is constructed of stainless steel (1.4404/316L) with PBT components, rated IP65/IP67, and features a threaded M12 x 1 cylindrical body with a total length of 70 mm. Gold-plated contacts ensure reliable signal transmission, and the sensor is suitable for continuous, maintenance-free operation. The M12 connector facilitates straightforward integration with safety PLCs, safe AS‑i modules, or safety evaluation units. With a wide ambient temperature range of -25…70 °C (operational life ≤ 87,600 h) or 10…40 °C (operational life ≤ 175,200 h), the sensor is designed for use in industrial applications, including mobile and rough environments.

Key Features

• Original brand new, within warranty period – Factory‑sealed, genuine IFM component with full manufacturer warranty.

• 100% Satisfaction Guarantee – Risk‑free purchase; if you are not completely satisfied, we will replace or refund.

• Certified machine safety – SIL 2 / PL d – Certified to EN 60947-5-3, IEC 61508 (SIL 2), and ISO 13849 (PL d, Category 2), meeting rigorous international safety standards for reliable machine protection.

• No special actuator required – Unlike many other fail‑safe sensors, the GF711S detects standard metal objects (steel, stainless steel, etc.) without needing a special coded actuator or magnet, simplifying system design and reducing costs.

• Dual redundant OSSD outputs (A1 and A2) – Two PNP switching outputs (OSSD) with cross‑monitoring provide fail‑safe signal transmission, ensuring defined behaviour under fault conditions (PDDB) per IEC 60947-5-3.

• Fast 1 ms response time – Responds to safety requests and enable zone approaches in just 1 ms, with a risk time of 20 ms, enabling rapid safety reactions in high‑speed automation environments.

• Non‑flush mountable with precise enable zone – Enable zone of 0.5 mm to 4 mm, safe switching‑off distance of 6 mm, and non‑flush installation provide reliable, repeatable detection for safety applications.

• Robust stainless steel housing (316L) – IP65/IP67 – 316L stainless steel housing with gold‑plated contacts, rated IP65 and IP67 for dust‑tight protection and temporary immersion, ideal for harsh industrial environments including washdown areas.

• Wide operating temperature range – Operates from -25…70 °C (operational life ≤ 87,600 h) or 10…40 °C (operational life ≤ 175,200 h), accommodating a broad spectrum of industrial applications.

• 20‑year mission time (Tɢ) with TÜV certification – Certified by TÜV Nord, the sensor has a mission time of 20 years, PFH of 1.0E-07, and meets SILcl 2 to IEC 62061, ensuring long‑term safety integrity.

• M12 connector for easy integration – Standard M12 connector with gold‑plated contacts enables straightforward connection to safety PLCs, safe AS‑i modules, or safety evaluation units, simplifying installation and maintenance.

Technical Specifications

Applications

• Machine safety guarding – Position monitoring of safety guards, doors, and access panels on machinery.

• End‑position monitoring – Safe position detection on pneumatic cylinders, grippers, and linear actuators in automated production lines.

• Mobile equipment safety – Rough terrain applications requiring IP65/IP67 protection and wide temperature tolerance.

• Conveyor systems – Safe belt alignment monitoring and rotating shaft speed detection.

• Assembly and packaging machinery – Component presence verification in safety‑critical automated assembly cells.

• Material handling systems – Safe detection of pallet positions, elevator car positions, and lift table end stops.

• Robotic work cells – Safe area monitoring and end‑effector position verification.

• Food and beverage industry – Washdown‑resistant IP67 housing suitable for hygienic environments.

Package Includes

• 1 × IFM GF711S fail‑safe inductive sensor

• 2 × lock nuts (standard for IFM M12 sensors)

• Instruction manual

ℹ️ The GF711S requires no special actuator – it detects standard metal objects. M12 mating connector sold separately.