How to Set Up a Raven 440/450 Rate Controller

Fennig Equipment L.L.C. 841 OH-29 Celina, OH 45822 (419) 953-8500 00:00 Intro to Raven 440/450 00:20 How the Rate Controller Works 00:43 Components Overview (Harnesses, Flow Meter, Valve) 02:08 Speed Sensor Setup & Recommendation 03:59 How Rate Control Is Calculated 04:41 Common Problems & Troubleshooting 05:04 Resetting & Clearing the System 06:09 Full Setup & Calibration Walkthrough 10:03 Running the System in the Field 10:57 Final Tips & Wrap Up If you're running a Raven 440 or Raven 450 and struggling with setup, calibration, or inconsistent application rates, this video walks you through everything you need to know to get it dialed in correctly. We break down how the Raven rate controller works, including key components like the flow meter, control valve, product harness, console harness, and speed sensor. Understanding how these systems work together is critical for accurate rate control whether you're spraying, running anhydrous, or applying liquid fertilizer. This step by step guide covers full Raven 440 and Raven 450 setup, including boom width calibration, meter cal numbers, valve cal numbers, speed cal setup, and how to properly program your controller from scratch. We also walk through clearing the system, entering new calibration values, and making sure your controller is reading correctly in the field. If you're dealing with issues like incorrect application rates, speed not reading properly, flow meter problems, or control valve inconsistencies, we cover some of the most common Raven troubleshooting scenarios and how to fix them. Many problems come down to incorrect calibration numbers, failing flow meters, or poor speed input, and we show you what to look for. We also talk about why upgrading to a reliable speed source like an Astro GPS speed sensor can eliminate a lot of common issues compared to wheel sensors or piggybacked signals. This video is designed for farmers, operators, and anyone running precision ag equipment who wants to better understand their Raven controller and improve accuracy in the field. Topics covered: Raven 440 setup Raven 450 setup Raven rate controller calibration Flow meter calibration and troubleshooting Valve calibration and setup Speed sensor setup and troubleshooting Boom width calibration Sprayer and applicator rate control Precision agriculture setup and troubleshooting If you need parts, service, or help getting your Raven system up and running, reach out to us at Fennig Equipment. We keep common components like flow meters, valves, and harnesses in stock and are happy to help you troubleshoot your setup.