Microprocessor based. Analog output: LEW-190: Emulsifier 0-10V,Menu entry and analog output control via front keys. Analog output control via digital inputs. Adjustable scale upper and lower level. Adjustable upper and lower limit for SET. Separate function selection for the front keys and digital inputs to control analog output. Password protection. SECU setting for enable/disable SET adjust menu entry High accuracy EEPROM memory to store settings.