Watlow F4DH-KKKK-21AF Series F4D Dual-Channel Ramp-and-Soak Temperature Controller 100-240V

Description

The Watlow F4DH-KKKK-21AF is a Series F4D dual-channel ramping temperature controller designed for industrial thermal processing applications requiring programmable temperature profiles. Watlow part number F4DH-KKKK-21AF operates on a 100–240 VAC/VDC power supply and features dual control channels, a 0.5 A Form A solid-state relay output, and dual retransmission outputs. Its programmable ramp-and-soak functionality supports coordinated temperature control in industrial ovens, furnaces, environmental chambers, and other thermal processing equipment.

Technical Specifications

Information About F4DH-KKKK-21AF

The F4DH-KKKK-21AF is a dual-channel controller from Watlow's Series F4, engineered for applications requiring independent temperature control loops and programmable ramp-and-soak profiles. Its 1/4 DIN panel-mount construction incorporates three universal analog inputs, four digital inputs, eight digital outputs, and two alarm functions for integration with industrial process equipment. This configuration includes four Form A solid-state relay outputs rated at 0.5 A each, along with two configurable analog retransmission outputs for sending process information to external monitoring devices. The controller also supports EIA-232/485 serial communications, Modbus RTU, and a four-line LCD operator interface for profile programming, configuration, and process monitoring.

Key Features:

• Dual-Channel Control: Provides two control loops for managing separate temperature processes.

• Ramp-and-Soak Programming: Supports programmed temperature changes and timed holding periods.

• Universal Analog Inputs: Includes three inputs for compatible temperature sensors and process signals.

• Wide Power Supply Range: Operates from 100–240 VAC/VDC.

• Four Solid-State Relay Outputs: Provides four Form A switching outputs rated at 0.5 A each.

• Dual Retransmission Outputs: Offers two configurable analog outputs for external process monitoring.

• Analog Signal Options: Supports retransmission signals of 0–5 VDC, 1–5 VDC, 0–10 VDC, 0–20 mA, or 4–20 mA.

• Digital I/O Configuration: Includes four digital inputs and eight digital outputs for external control functions.

• Integrated Alarm Functions: Provides two alarm functions for monitoring process conditions.

• Serial Communication: Supports EIA-232/485 connectivity with Modbus RTU communication.

• LCD Operator Interface: Features a four-line display for operating information and profile configuration.

• Industrial Panel Mounting: Uses a 1/4 DIN format suitable for control cabinets and equipment panels.

The F4DH-KKKK-21AF delivers the reliability and precision required for multi-zone temperature regulation, programmable thermal cycles, and industrial ramp-and-soak process control.

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