Hi, i have a acoustic guitar but i do not know how to tune it with the Matrix Chromatic Tuner SR-1050

SOURCE: Hi, i have a acoustic guitar and i am trying to

Hi
Simply turn the tuner on using the power button. Play an open string note close to the tuner (no more than about 1/2 metre away) - for instance the low E on string 6.
The built in microphone will pick up the sound and, if your guitar is reasonably close to being in tune the led light labelled 'E' will illuminate on the lower scale on the tuner along with one of the three other leds to indicate whether the note is flat (b), in tune (green) or sharp (#).
Due to harmonics any or all of these three leds may flash but it is the one that is on the most that matters.
Adjust the tuning peg until the green is on constantly when you play the string.
Move on to the next string
Note - if the string is more than a semitone sharp or flat a different light may flash (e.g if the low E string is 3/4 of a tone flat the D light will come on).
If you wish to tune your guitar to another instrument that is not at perfect pitch (and perhaps cannot be easily adjusted - like a pipe organ) you can use the calibrate button to adjust the setting of the tuner. This temporary recalibration will be lost when the tuner is turned off.