User Manual – Rev BE    AMETEK Programmable Power 
MX Series  161 
1)  Select the PROGRAM 1 screen by pressing the PROG key and 
position the cursor on either the Voltage or Frequency setting 
field. 
2)  Select the MEASUREMENT 1 screen by pressing the MEAS key. 
A small arrow will be showing in front of either the Voltage or 
Frequency measurement readout. 
3)  The shuttle knob can now be used to increment or decrement 
the selected parameter. 
If three-phase mode is selected in the MEASUREMENT 1 screen, slewing the 
knob while the voltage is selected will change the output voltage on all three 
phases. If only one phase is selected, only the output of the selected phase will 
be affected. 
4.3.5  Changing Voltage Output Modes 
The MX Series supports AC mode, DC mode and AC+DC mode (-3Pi only). The 
voltage mode can be selected from the PROGRAM 2 screen, VOLT MODE field. 
The shuttle or +/- key will toggle between available modes. It is recommended 
to set the initialization settings to the required operating mode so the unit 
powers up in the correct voltage mode
1
. If not, the mode must be selected 
before applying output power to prevent applying to wrong type of voltage. 
4.4  Waveform Management  [3Pi Controller only] 
The MX Series with 3Pi controller employs independent arbitrary waveform 
generators for each phase. This allows the user to create custom waveforms. In 
addition, three standard waveforms are always available. This chapter covers 
issues that relate to defining, downloading, and managing custom waveforms. 
4.4.1  Standard Waveforms 
For most AC applications, a sine wave shape is used. The sine wave is one of 
the standard waveforms provided on all MX Series models. This standard sine 
wave is always available and is the default waveform at power-on.  On MX 
models with the 3Pi controller, two more standard waveforms are available, 
square, and clipped. 
 
 
1
 If the mode is changed after power up and after the output relay is closed for the first time after power up, the measurement offset 
calibration may not be correct. A phase mode change (-3Pi only) may be used to recalibrate the measurement offset.