Overview:
 
The DC3 uses a very simple control algorithm to help keep your boat at a constant depth. Even when activated it is designed to not interfere with your ability to adjust your operating depth, but it must be controlled from a “spring return to center” stick on your transmitter.
 
After activating the DC3 use the bow-planes drive your boat to a desired depth and once there let go of the control stick. While the DC3 sees a rise- or dive command on the bow-plane channel it passes that command along to the connected servo but also updates the stored “reference depth” that it should try to achieve. When the DC3 sees a neutral command on the bow-plane channel it will compare the current depth to the reference depth and drive the bow-plane servo as
needed to return to (or remain at) the reference depth. To the operator this means the DC3 does not get in your way when you want to change depth, and will simply hold the depth you left off at when you last released the control stick.
 

Installation

The DC3 can be mounted in any location that’s convenient, front or aft in your watertight compartment. (The point at which the depth/pressure is sensed will be within the pressure pick-up tube, not the location of the pressure sensor.) The DC3 is not affected by local pressure changes in the WTC so it does not need to be located in a separate compartment if you’re using an RCABS- or SAS-type ballast system. It is recommended that you choose a location that will allow easy access to the setup button should any tweaking be required and has a view of the LEDs as these can be helpful for diagnostic purposes. The pressure port on the DC3 should be connected to your pressure pick-up with a soft silicone tube.
 
View installation and setup instructions here.