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    Electric Heaters
    Cartridge Insertion Heaters Circulation Heaters Immersion Heaters Air Heaters Flexible Heaters Tubular Heaters Gas Delivery and Exhaust Heaters High-Temperature Heaters Specialty Heaters View All
    Temperature & Process Control
    Multi Loop Controllers Single Loop Controllers Indicators and Alarms Limits and Scanners Operator Interfaces
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    Data Management
    Data Recorders
    Panels & Systems
    WATCONNECT® Control Panels POWERSAFE™ Thermal System
    Sensors
    Thermocouples Resistance Temperature Detectors (RTDs) Fiber Optic Sensing
    man with dual monitors using product selection assistant
    Not Sure? Try Our Digital Product Assistant

    Take the complexity out of product selection with our innovative Digital Product Assistant. Answer a few application questions and our interactive tool will recommend a product from our catalog.

    Launch Assistant

    Services

    thermalwatch thumbnail image of laptop with modern analytics dashboard
    THERMALWATCH™ Intelligent Analytics Solution

    THERMALWATCH leverages our deep understanding of thermal systems to provide secure data integration and management, along with expert analysis, to transform data into valuable information.

    Learn More

    Configure a Product

    vd_
    Watlow SELECT® Visual Designer™

    Quickly configure a product to meet the unique requirements of your application. Instantly access lead times, dimensional drawings, and more - at your own pace. No login required.

    Get Started

    Prefer to talk to a human? Find a Distributor or Sales Office 

    Part Lookup

    Know Your Part Number?

    Enter your part number exactly as marked.

    #
    Tip

    Many parts have lead times, dimensional, drawings, and more available on-demand. Click "Request a Quote" on the search result to access.

    Help Me Choose

    man with dual monitors using product selection assistant
    Not Sure? Try Our Digital Product Assistant

    Take the complexity out of product selection with our innovative Digital Product Assistant. Answer a few application questions and our interactive tool will recommend a product from our catalog.

    Launch Assistant
    Still need help? Locate a Rep Contact Us

    Product Documentation

    Watlow Catalogs Specification Sheets User Manuals Software and Demos Brochures
    CAD Drawings Mobile Applications Watlow Patents Certifications & Approvals
    catalog-ebook
    Try Our Interactive Catalogs

    Click Here

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    icon representing a thermal loop system
    The Thermal Loop

    For Watlow, the underlying concept behind everything we do is that of the thermal loop. Every product we offer, and every project we work on, is ultimately about the creation and control of a thermal loop in an application. 

    Learn More

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    Clinical Equipment Semiconductor Processing Foodservice Equipment

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    thumbnails of white papers relating to electrification and decarbonization
    Electrification

    Over 100 years ago, Watlow began designing and manufacturing electric heating elements to replace steam in the shoe industry. We've been electrifying equipment and processes ever since. Wherever thermal is critical, no one is better equipped to help you reach your energy transition goals. Learn why leading companies partner with us.

    Learn More

    Industry 4.0

    thumbnail of industry 4.0 white paper on tablet and print
    The Thermal Loop & Industry 4.0

    Industry 4.0 technology enables the capture and processing of data in real time, both where its generated and where it is needed, to implement effective improvements to industrial processes. Capturing data, though, is not enough. The advantage Watlow® brings to an Industry 4.0 project are its thermal experts, who understand both the important role thermal loop systems play in key applications and industry 4.0 implementations.

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  1. Tech Tips
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Easily Upgrade a Watlow® F4T® Controller or D4T™ Data Logger

By: on February 22, 2022

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Watlow’s F4T® temperature and process controller is a powerful, best-in-class device offering industry-leading functionality. The D4T™ data logger features field removable input/output modules for maximum design flexibility. Now, new upgrades are available for both the F4T and D4T that provide enhanced capabilities and can be activated with an emailed upgrade code.

When connected to an F4T controller or D4T data logger, clicking the upgrade icon in COMPOSER® software allows users to easily enter an upgrade code.

If and when users desire an upgrade, they can purchase the upgrade code through their Watlow® representative to access and use the new features.

F4T and D4T Upgrade Features

The software upgrade features for these devices  include:

Update Data Logging With or Without File Encryption

Both the F4T and the D4T can be upgraded to save process data in files that can be downloaded to make records of critical processes. This feature date and time stamps user-selected parameters as it records them in files saved to the device’s internal memory or an external flash drive connected to a USB port.

A data log file encryption option is available. When your data needs advanced protection from alteration or tampering, file encryption is the answer.

Add Trending Charts

This upgrade allows users to view graphic charts to visualize and monitor system operations and progress.

Users can configure up to four charts with six trend lines available on each. Users can also export shareable chart graphics for reporting purposes or future reference.

Add Function Blocks

Function blocks allow users to customize F4Ts and D4Ts for their applications. All F4T controllers and D4T data loggers include some function blocks. Upgrading the function block option allows users to customize their devices to suit their unique needs with an expanded library of function blocks.

For example, some users may need to maintain a consistent operating temperature within a specific range. An alarm block can be connected to an input to notify users of temperature fluctuation. The basic function block set includes six alarms, and upgrading adds more alarm blocks. Upgrades also add timers, counters, and mathematical and logic blocks to automate some processes.

Add Profile Ramp and Soak (F4T only)

Most F4T controllers already include the ramp and soak profiling feature, but it is possible to add this feature with an upgrade if the model does not already include it. Ramp and soak profiling allows users to program a series of steps that can, for example, increase a temperature over time, hold it steady and decrease it to thermally process or test a product in a chamber.  

Increase the Number of Control and Cascade Loops (F4T only)

Upgrading adds control and/or cascade loops to allow users to control more temperatures or other process variables. Users who need more control will also likely need more hardware for this upgrade. Additional hardware includes flex modules and wiring to be added to your machine.

How to Upgrade Your F4T or D4T

If your system may benefit from an F4T or D4T upgrade, please contact your Watlow representative to purchase an upgrade code. You will need to provide your current part number and serial number.

After purchase, an email code will be sent that can be easily entered into the device using  COMPOSER.

If you are unsure about your Watlow contact or have questions about whether an upgrade makes sense for your application, connect with a Watlow representative today. We can help you find the ideal solution for your needs.


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