CIES Inc

Calibrating a Cirrus SR22 G2 CiES Fuel Quantity Retrofit at Bend Aircraft

Here's another Tuesday Tech Tip! Confirm the aircraft indication system matches the sender output type.

Not all indicators interpret signals the same way—ensure compatibility between the sender, converter, and cockpit display.

CiES systems provide digital frequency output on the blue wire as standard. When analog output is required, a voltage output is added on the green wire without removing the digital output.

Using the incorrect signal type for the installed indicator will result in improper—or no—fuel level indication.