LETC48B2

Lubi LETC48B2 temperature controller is built to solve thermal stability challenges in demanding production environments such as packaging, plastic sealing, and laboratory heating. By integrating an advanced auto-tuning algorithm, it automatically calculates proportional, integral, and derivative parameters to prevent thermal overshoot and reduce setup time.

The controller includes dual password protection to safeguard process recipes against unauthorized parameter changes. Operators can toggle between heating, cooling, and alarm modes, backed by 6 software-selectable alarm functions (High, Low, In-Band, Out-Band, Absolute Out-Band, and Absolute Low) with programmable delay timers and hysteresis bands.

Key Features:

• Ultra-compact 48 × 48 mm bezel conforming to 1/16 DIN panel cutout standards.
• 3-Digit 0.56" high-visibility White LED 7-segment display.
• Universal sensor input: Type J (0–600°C), Type K (0–999°C), Pt100 (-99–400°C), and Pt.1 (-19.9–99.9°C).
• Selectable control modes: PID with Auto-tuning, ON-OFF with hysteresis, and Time Proportional (TP).
• Dual output capability: 1x C/O Relay rated 10A @ 230V AC and 1x 12V DC 30mA SSR drive.
• 6 selectable alarm configurations with programmable delay time ($dLt$).
• Security protection with dual-tier password architecture (Passcode 65 and 35).