Thompson Scale Company has been designing, building and upgrading in-motion Checkweigher systems for over 30 years. In fact, the very first 2 Checkweigher controls we built were installed as upgrades on Mettler-Toledo heavy-duty Checkweighers in Houston, Tx.

Our vast experience and knowledge with Checkweighers, combined with our Model 4693 controller, allow us to upgrade virtually any Checkweigher from any manufacturer. The 4693 is compatible with all types of I/O; dry contact, 110 VAC or 24 VDC, or any combination, and can interface with nearly all types of load cell.

The same Checkweigher controller and program is used for all types of Checkweighers, from small package high-rate systems up to heavy-duty Checkweighers with large capacity loads.

Our engineering staff can configure the 4693 Checkweigher controls to meet any environmental specification, from carbon black to pharmaceutical, explosion-proof, corrosion resistant, and high-pressure wash-down. Our controls can be configured to include many types of serial and Ethernet communications ports, and our pre-assigned list of I/O will meet any interfacing needs you may have. Specialized and sophisticated features are programmed into the 4693, including close-loop feedback, auto target and reject limits adjustment, and multiple languages.

Upgrade your existing Checkweigher to take advantage of modern and fully supported scale controls, and interfaces for data collection and analysis. Our Checkweigher upgrade costs less than half of a new Checkweigher, and will bring your operation better performance, higher reliability and ease of use.

What’s included in the upgrade:

The Checkweigher controls are replaced, and consist of the electronics responsible for reading the scale, determining weight, and generating outputs in relationship to weight. Additionally, other electrical equipment may be included, such as summing boxes, motor starters and/or motor controls, and interfaces to meet your data exchange and interlocking requirements.

Thompson Scale Co. also includes two (2) days of on-site service by one of our trained technicians. The first day is typically dedicated to the upgrade itself, and the second day is for training and monitoring the system to ensure it meets our mutual expectations.

While the Model 4693 Checkweigher upgrade is compatible with most any Checkweigher system in operation, it is not necessarily 100% compatible with the accessories used with these existing scales. We will work with you to provide the required interface or equipment to replace the interface or function currently in use; printer packages, data logging, remote displays, light towers, reject devices, etc.

All upgrades offered by Thompson Scale Company include scale controls that can be easily upgraded to provide detailed and comprehensive data logging and down-time reporting functions. Multiple 4693 controllers on different types of scales can be connected to this same software, providing complete data collection and analysis for your production scales.

Additionally, our Model 4693 Universal Filler (Checkweigher) Controller is identical to our line of bulk bag filler controls, net weigh scale controls, gross (valve) bag filler controls, and other types of filling and weighing scales. All hardware is interchangeable, and cross-compatible, regardless of scale type. This provides a single low-cost set of spare electronic parts, and common operation and calibration across all scales.

Additional information on our checkweigher controls is available through our standard checkweigher pages on this website. Click on the link below to be re-directed to our Checkweigher home page. Controls, configurations, user’s manuals, etc. are available from this link.

• Checkweigher Home page

Thompson Scale Company would like the opportunity to quote on your checkweigher or production scale upgrade. Please fill out the following checkweigher questionnaire, and place the word “upgrade” in the comments section at the end of the questionnaire. We also welcome your call, and will be happy to answer any questions you may have.

• Checkweigher Questionnaire