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Watlow F4DH-KKKK-21RG Dual-Channel Ramping Controller with Solid-State Relays and Dual Retransmit Outputs
- Regular price
- $4,099.00
- Sale price
- $4,099.00
- Regular price
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Product Description P/N: F4DH-KKKK-21RG
Description
The Watlow F4DH-KKKK-21RG is a dual-channel ramping controller for executing programmed temperature and process cycles in environmental chambers, furnaces, and ovens. It combines ramp-and-soak programming with four solid-state relay control outputs and two analog retransmit outputs for coordinated regulation and external monitoring.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Watlow |
| Category | Controls & Indicators |
| Part Number | F4DH-KKKK-21RG |
| Subcategory | Temperature/Process Control |
| Alternate Part Number | F4DHKKKK21RG |
| Series | F4D |
| Controller Type | Dual-channel ramp-and-soak controller |
| Mounting Format | 1/4 DIN panel mount |
| Supply Voltage | 100–240 VAC/VDC |
| Analog Inputs | Three universal analog inputs |
| Control Outputs | Four solid-state relays: 1A, 1B, 2A, and 2B |
| Relay Configuration / Rating | Form A, normally open / 0.5 A per output |
| Auxiliary Retransmit Outputs | Two analog retransmit outputs |
| Retransmit Signal Ranges | 0–5 VDC, 1–5 VDC, 0–10 VDC, 0–20 mA, or 4–20 mA |
| Profile Capacity | Up to 40 profiles; 256 total steps |
| Digital Events / Alarms | Four digital inputs, eight digital event outputs, and two alarm outputs |
| Communications | EIA-232/EIA-485 Modbus |
| Interface / Language | Red/green displays with four-line LCD / English with 100 Ω RTD option |
| Weight | 2.00 lbs |
Information About F4DH-KKKK-21RG
The F4DH-KKKK-21RG is a Series F4D controller built in a 1/4 DIN panel-mount enclosure around a 16-bit microprocessor. Three universal analog inputs accommodate compatible temperature sensors and process transmitters, while digital event connections support interaction with auxiliary equipment. Its programming memory holds up to 40 profiles sharing a total of 256 steps, allowing controlled transitions and timed soak periods. The English-language interface combines red/green process indication with a four-line LCD for guided configuration and profile editing.
Key Features:
- Dual-Channel Control: Regulates two process channels for applications such as combined temperature and humidity testing.
- Ramp-and-Soak Programming: Stores up to 40 profiles with 256 total programmable steps shared across them.
- Four Solid-State Relay Outputs: Provides Form A, 0.5 A outputs at positions 1A, 1B, 2A, and 2B.
- Dual Analog Retransmission: Supplies two configurable analog outputs for external recording or supervisory equipment.
- Universal Analog Inputs: Includes three inputs for supported sensors and process signals.
- Digital Event Connections: Provides four digital inputs and eight digital event outputs for programmed equipment coordination.
- Serial Communication: Supports Modbus communication through an EIA-232/EIA-485 interface.
- Guided Operator Interface: Uses English menus and a four-line LCD to support setup and profile programming.
The F4DH-KKKK-21RG delivers the reliability and precision required for programmed thermal processing and dual-channel environmental testing.
Description
The Watlow F4DH-KKKK-21RG is a dual-channel ramping controller for executing programmed temperature and process cycles in environmental chambers, furnaces, and ovens. It combines ramp-and-soak programming with four solid-state relay control outputs and two analog retransmit outputs for coordinated regulation and external monitoring.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Watlow |
| Category | Controls & Indicators |
| Part Number | F4DH-KKKK-21RG |
| Subcategory | Temperature/Process Control |
| Alternate Part Number | F4DHKKKK21RG |
| Series | F4D |
| Controller Type | Dual-channel ramp-and-soak controller |
| Mounting Format | 1/4 DIN panel mount |
| Supply Voltage | 100–240 VAC/VDC |
| Analog Inputs | Three universal analog inputs |
| Control Outputs | Four solid-state relays: 1A, 1B, 2A, and 2B |
| Relay Configuration / Rating | Form A, normally open / 0.5 A per output |
| Auxiliary Retransmit Outputs | Two analog retransmit outputs |
| Retransmit Signal Ranges | 0–5 VDC, 1–5 VDC, 0–10 VDC, 0–20 mA, or 4–20 mA |
| Profile Capacity | Up to 40 profiles; 256 total steps |
| Digital Events / Alarms | Four digital inputs, eight digital event outputs, and two alarm outputs |
| Communications | EIA-232/EIA-485 Modbus |
| Interface / Language | Red/green displays with four-line LCD / English with 100 Ω RTD option |
| Weight | 2.00 lbs |
Information About F4DH-KKKK-21RG
The F4DH-KKKK-21RG is a Series F4D controller built in a 1/4 DIN panel-mount enclosure around a 16-bit microprocessor. Three universal analog inputs accommodate compatible temperature sensors and process transmitters, while digital event connections support interaction with auxiliary equipment. Its programming memory holds up to 40 profiles sharing a total of 256 steps, allowing controlled transitions and timed soak periods. The English-language interface combines red/green process indication with a four-line LCD for guided configuration and profile editing.
Key Features:
- Dual-Channel Control: Regulates two process channels for applications such as combined temperature and humidity testing.
- Ramp-and-Soak Programming: Stores up to 40 profiles with 256 total programmable steps shared across them.
- Four Solid-State Relay Outputs: Provides Form A, 0.5 A outputs at positions 1A, 1B, 2A, and 2B.
- Dual Analog Retransmission: Supplies two configurable analog outputs for external recording or supervisory equipment.
- Universal Analog Inputs: Includes three inputs for supported sensors and process signals.
- Digital Event Connections: Provides four digital inputs and eight digital event outputs for programmed equipment coordination.
- Serial Communication: Supports Modbus communication through an EIA-232/EIA-485 interface.
- Guided Operator Interface: Uses English menus and a four-line LCD to support setup and profile programming.
The F4DH-KKKK-21RG delivers the reliability and precision required for programmed thermal processing and dual-channel environmental testing.
