1. Hold the TAP footswitch until the Tuner screen appears:
2. Pluck an individual string on your guitar. When a box left of centeris lit red, your string is flat. When a box right of center is lit red, your string is sharp. When the center box on the lower row is lit green, the top row of smaller bars can be used for more precision. When both arrows are illuminated, your string is perfectly in tune.
3. To exit the Tuner, step on any footswitch.
All tuner settings are global.
If you have a favorite pedal or rack tuner and wish to use it instead of the Helix tuner, connect Send 1, 2, 3, or 4 to your tuner's input and turn Knob 2 (Tuner Out) to select that Send. This way, every time you hold the TAP footswitch, Helix will automatically route the signal to your favorite tuner.