The KDBS-305D is a fully automatic closed cup flash point tester designed for petroleum products, lubricants, and fuel oils. It features a modular design with one-master-multi-furnace capability, allowing simultaneous or sequential testing of multiple samples. The instrument uses a high-speed signal processor for precise control, with a platinum resistance temperature sensor delivering accurate measurements. It includes automatic atmospheric pressure detection and correction, adaptive PID temperature control, and a no-source ignition system for reliable operation. The 320×240 touchscreen LCD, built-in thermal printer, and RS232 interface ensure intuitive operation and efficient data management, with fault detection and alarm functions for

• Modular one-master-multi-furnace design for multi-sample testing
• Plug-and-play furnace connection with automatic host recognition
• High-speed signal processor for high-precision measurement
• No-source electronic ignition for safe, reliable ignition
• Automatic atmospheric pressure detection and result correction
• Adaptive PID algorithm for precise temperature control
• Full automation: heating, lid opening, ignition, alarm, cooling, and printing
• Fault detection and alarm for sensor failure, sample error, or over-temperature
• Built-in thermal printer with detachable printing function
• Stores up to 255 time-stamped test records
• 320×240 touchscreen LCD with screen protection
• RS232 interface for computer data processing

• Model: KDBS-305D
• Temperature measurement range: Room temperature ~ 400°C
• Repeatability: ≤2°C
• Reproducibility: ≤±4°C
• Resolution: 0.1°C
• Accuracy: 0.5%
• Temperature sensor: Platinum resistance
• Temperature accuracy: ±2°C (≥110°C), ±1°C (≤110°C)
• Operating temperature: 10–40°C
• Operating humidity: ≤85% RH
• Power supply: AC 220 V, 50 Hz ±5%
• Power consumption: <300 W
• Ignition method: Electronic ignition
• Heating rate: Compliant with GB/T261-83 and GB/T261-2008
• Data storage: 255 time-stamped records
• Interface: RS232 for computer connection