10/30/2018
Tetrapad 2.0 Manual - Google Docs
https://docs.google.com/document/d/18AFrtwTCpaE5_dPILqmrodOXnIIEmdZGws2Kx_eEC4M/edit#heading=h.akbpz6132fpo
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Tetrapad Manual
Using Output Voltage Calibration Mode
To enter Output Voltage Calibration Mode:
1. Press the white Mode Select button as you would normally do to enter mode selection.
2. Instead of rotating an encoder to select a numbered mode, press and hold the white
Mode Select button until a single red LED lights beneath one of the 8 output jacks.
Tetrapad is now in the hidden Output Voltage Calibration Mode.
To Calibrate an Output:
1. Rotate the right-most encoder (Encoder 4) to select which of the 8 output voltages you
wish to calibrate. The single LED moves beneath the selected output jack to indicate
which output is to be calibrated.
2. Plug a high resolution voltage meter into the Output jack whose LED is lit.
You will calibrate an output to two different voltages: 0V (as indicated by a red Output
Status LED) and 1V (as indicated by a green Output Status LED). Let’s begin with
the 0V calibration:
3. If the Output Status LED is currently green, push any of the four encoders to change its
color to red. A red Output Status LED indicates 0V.
4. Rotate the three left encoders to set the output voltage as close to 0V as possible.
The third encoder from the left (Encoder 3) is the coarse setting. The first encoder on
the left (Encoder 1) is the fine setting. Between them is Encoder 2, which provides a
voltage adjustment between fine and coarse.
5. Push any of the encoders to change the Output Status LED to green, indicating that 1V
is now appearing at the corresponding output.
6. Rotate the three left-most encoders to set the output voltage as close to 1V as possible.
Again, these three encoders are arranged with the finest control on the left.
7. To calibrate additional outputs, repeat steps 1-6.
8. Press the red SHIFT button to save the calibration.
To exit Output Voltage Calibration Mode:
1. Press the white Mode Select button, and Tetrapad will exit Output Voltage Calibration
Mode, returning it to standard Mode Select view.
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