Safety light curtain for automated beverage container testing systems - non-contact safety device using infrared beams to detect intrusions into hazardous machine areas.
A safety light curtain is an optoelectronic safety device consisting of a transmitter and receiver that creates an invisible curtain of infrared light beams. When any beam is interrupted by an object (such as a hand or tool), the device sends a stop signal to the machine's safety controller, immediately halting hazardous motion. In automated beverage container integrity testing systems, it protects operators from moving parts during container handling, positioning, and testing operations.
诱因 → 失效模式 → 工程缓解
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Type 2 (according to IEC 61496) uses simple pulse modulation and is suitable for lower risk applications. Type 4 uses coded light patterns with cross-checking and redundancy, providing higher safety integrity (Category 4, PL e) required for hazardous machinery like automated beverage testing systems.
Daily functional testing is recommended, with comprehensive safety validation at least annually. Testing should verify all beams are functional, response time meets specifications, and the stop signal properly halts machine motion.
Yes, with appropriate IP rating (IP65 for water jets, IP67 for temporary immersion). For beverage testing systems with potential liquid exposure, IP67-rated units with proper sealing are recommended.
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