The ASD QualitySpec® 7000 analytical system is comprised of a control cabinet and optical head. The compact optical head mounts over the conveyor and uses a safe quartz-halogen light source for consistent reliable measurement. The reflected signal is transferred from the optical head to the spectrometer through a fiber optic cable.

At the core of the ASD QualitySpec 7000 is the Goetz spectrometer module which covers the Vis/NIR spectral region from 350-2500 nm. Enclosed in a ruggedized stainless-steel enclosure, the system can withstand some of the most extreme process environments from dusty mills to remote rock quarries. Integrated heaters and air conditioning allow the unit to operate efficiently across a range of temperatures from -20 to 50oC (-4 to 122oF).

Features and benefits

ASD QualitySpec® 7000 Benefits:

  • Rapid, reliable, non-contact measurements
  • Over-the-conveyor materials analysis
  • Qualitative or quantitative data
  • Simple OPC server communications integration
  • Simultaneous measurment of multiple constituents 


  • Wavelength Range 350-2500 nm
  • Wavelength Accuracy 1 nm
  • Sampling Spot Size 76-100 mm (3-4 in)
  • Fast Ethernet; 100 Base-T or 100 Base-FX (fiber optic for distance exceeding 100 meters)
  • OPC Server connection to constituents in Microsoft Access database
  • Measure and record two values for up to 20 constituents
  • Qualitative or quantitative data for each constituent
  • Model Quality Index (MQI), a model quality indicator for each result
  • Light Source 100 watt quartz-halogen
  • Optical Head 74 cm (29 in), from bottom of Mounting Distance optical head box to average material level on conveyor
  • Power 230 VAC ± 10%, 12 amps, 50/60 Hz
  • Weight (Exclusive of Mounting Structures)
(H x W x D)
  • Optical Head 43 x 41 x 46 cm (17 x 16 x 18 in)
  • Electronics Cabinet 100 x 122 x 48 cm (39 x 48 x 19 in)
  • Optical Head 22.6 kg (50 lbs)
  • Electronics Cabinet 159 kg (350 lbs)
Environmental Considerations
  • Temperature Rating -20 to 50° C (-4 to 122° F) ambient
  • Humidity 5 to 95% non-condensing
  • CE Marked