McPherson Step Motor Drive Systems offer easy front panel and computer control. With McPherson spectrometers these motor drive systems allow very small wavelength increments per step and allow to oversample achievable optical resolution by more than 10X (oversample capability depends on monochromator model.) High resolution micro step stepper drive systems all offer easy to use RS232 interface, integrated limit switches, and homing capabilities. For Model 789A-3 and 792 executable software is available for spectrometer controls. Sofware support libraries are available for all models.



High Resolution Stepper Drive System, Model 789A-3
  • Most popular, Works with all McPherson Spectrometers
  • Drive of Choice for high precision wavelength control setting
  • Up to 50,000 steps per revolution
  • Front panel and computer control, RS232
  • Manual monochromators controls maintained
  • Available with fit kits to upgrade monochromators in the field
Go To Model 789A-3 Data Sheet
Model 789A-3 high resolution microstepping drive system
Model 792 four axis stepper drive system
Four Axis Stepper Drive System, Model 792
  • Controls up to four stepping motors
  • Drive of Choice for motorized slits and accessories
  • Up to 200 steps per revolution
  • Front panel indicators, controlled by RS232
  • Manual controls maintained for most accessories
Go To Model 792 Data Sheet
High Resolution Multi Axis Motor Drive Array
  • Rack mounted control system
  • Up to 8 motor drive modules per rack
  • Up to 50,000 steps per revolution
  • Front panel indicators, controlled by RS232
  • Connectors for Motors, Encoders and IO Control lines
High Resolution Multi Axis Motor Drive Array