Extech VFL Series Temperature PID Controllers

Extech VFL Series Temperature PID Controllers now offer Fuzzy Logic enhanced PID and a Soft-Start feature that protects heaters from cold-starts. PID plus Fuzzy Logic tackles even the most demanding applications, eliminating over-shoot, unwanted process fluctuations and drift. The Soft Start feature is ideally suited for processes, such as those employed in the Thermo-Plastics industry, where careful, exact, and slow heating of product is required.

The Extech TFL Series have the following features:

Fuzzy Logic PID offers intuitive control simulating human control logic.
Single stage Ramp and Soak program with Ramp-to-Setpoint Limit that can be combined with the Soft Start feature for critical process demands.
Manual mode allows the user to override automatic control and drive the controller output higher or lower with the touch of a button.
Select thermocouple input type (9 selections) or RTD input (2 selections) from the display menu without the need for hardware modification.
Complete with mounting bracket hardware and screw terminals for easy wiring.

Features

• Two relay outputs
• Dual 4-digit LED displays of process and setpoint values
• Accuracy: Thermocouple ±1.8°F (1ºC); RTD ±0.36°F (0.2ºC)
• User friendly menus and tactile keypad for easy programming
• One-touch autotuning
• Select desired temperature display units (°F or °C)
• Two “Latching” alarm relays standard with 8 Alarm modes
• Accepts thermocouple and RTD inputs