[CA] [CA11] Fuel Tank Calibration

[mannery]

I attempted to calibrate my fuel tank this afternoon with the final result being a message from my Axiom 9 stating that calibration had failed.

I am using an Oceanics Systems 3271 Volumetric Fuel Sender. It is installed in my tank properly. It is also properly attached to my NMEA 2000 network and shows up on the Axiom under "Configure tanks" as well as under "Diagnostic" so I am certain it is hooked up properly.

They steps I took are outlined below:

• Set instance number on 3271 to 0
• Set fuel tanks to 1 on Axiom
• Completely drained fuel tank
• Went to Homescreen > Settings > Boat Details
• Selected Configure Tanks
• Chose tank instance 0 (the only tank shown)
• Set Tank Name, Type, and Capacity
• Pressed Calibrate > Run wizard
• Set number of calibration points to 5

The Axiom then asked me to empty tank and press OK. I pressed OK as my tank was already empty

It then asked me to fill my tank several times to specific volumes and press OK after each fill. I did this 4 more times.

At each press of OK the Axiom indicated "setting calibration point" and then asked me to fill to next volume. All seemed to appear to be going correctly at this point.

The last request from Axiom was to completely Fill the tank and press OK. I did this and the Axiom returned a message indicating that calibration had failed.

As doing this procedure requires completely draining and then accurately filling the Fuel tank to several different volumes it would be really nice to understand WHAT the failure mechanism is before doing this whole procedure again as it is time consuming and MESSY.

To that end can you please suggest what additional steps I need to take, or what steps I need to modify in order to succeed on my next try.

As a note, the procedure I followed above was taken from LightHouse 3.9 Advanced Operation instructions "Calibrating Tanks"