The ST G - ST H series from Pizzato Elettrica is a line of RFID safety sensors designed for use in demanding industrial environments, providing advanced safety features and flexibility. Here’s a breakdown of the key characteristics:

Key Features:

1. Series Connection of Multiple Sensors:

   • Up to 32 sensors can be connected in series without compromising safety levels, maintaining PL e safety level as per EN 13849-1. This demonstrates the robustness of the sensors and the system's capability to handle multiple sensors efficiently.
   • Devices in the series can be connected with other Pizzato Elettrica safety devices (e.g., hinge switches, RFID sensors, guard-locking switches), preserving PL e and SIL 3 safety levels.

2. Housing and Durability:

   • The monolithic housing design is free from encapsulation resins, ensuring durability in harsh conditions. This makes it suitable for environments such as food and pharmaceutical industries.
   • Devices are sealed to IP67 and IP69K standards, allowing them to withstand immersion and high-pressure hot water jets, meeting the highest protection levels for environmental exposure.

3. Tamper Protection:

   • Sensors come with snap-on protection caps to block access to fastening screws, preventing tampering and dirt accumulation, making them easy to clean.

4. High-Level Coded Actuators:

   • The RFID technology in these sensors provides each actuator with unique coding, preventing unauthorized actuators from tampering with the system. This ensures maximum security through millions of different coding combinations.
   • Special versions of the sensors can recognize multiple actuators with distinct high-level coding, allowing for flexible machine configurations (e.g., interchangeable machine parts, robotic positions).

5. Programmability:

   • Some versions of the sensors allow easy programming to recognize new actuator codes, enabling the sensor to be reprogrammed when necessary, maintaining system security.
   • The multitag function enables the sensor to respond differently depending on which actuator it detects, ideal for machines with multiple workstations.

6. Magnetic Holding:

   • ST H series sensors can come with an integrated permanent magnet, generating a holding force to keep guards closed during vibrations or recoil during closure, ensuring consistent performance in dynamic environments.

7. Multicolour RGB Signalling LED:

   • The sensors feature a multicolour LED that allows users to quickly identify operational statuses (e.g., active devices, open guards, internal errors) from both sides of the device, simplifying diagnostics and maintenance.

8. Extended Temperature Range:

   • T8 versions of the sensors are rated for a broad temperature range of -35°C to +85°C, making them particularly suited for industries like food and pharmaceuticals.

9. External Device Monitoring (EDM):

   • On request, sensors can be equipped with EDM, ensuring the proper function of devices connected to the safety outputs, such as relays or safety contactors, through feedback signals.

10. Resistance to Dirt:

    • Designed to resist dirt and deposits, with no recesses that could accumulate debris, making them particularly well-suited for the food industry.

Applications and Advantages:

• Ideal for environments where high safety levels and robust performance are required.
• The symmetrical design of the sensor and actuator makes installation easier, as they can be positioned in any orientation without requiring special products.
• Flexibility in setup and installation, reduced wiring costs, and faster deployment due to features like series connections and programmability.

Temperature and Environmental Adaptability:

• The sensors are designed to operate in extreme environments, including those requiring frequent cleaning with high-pressure hot water jets.

The ST G - ST H series sensors offer a versatile, secure, and durable solution for industrial safety applications, combining high-tech RFID capabilities with practical features for challenging environments.