Backscattering Calibration Fixture

Calibration fixture with HydroScat-6

• Used as part of our rigorous calibration procedure
• Use to calibrate any HOBI Labs backscattering sensor (HydroScat Family)
• Calibrate in your lab or in the field
• Uses Spectralon? calibration target (available separately), not special fluids or particles
• HydroSoft software, free with HOBI instruments, guides you through the procedure, does all calculations, and loads results into the instrument

• Materials: transparent acrylic; stainless steel threaded rods
• Outside dimensions: 17.5" x 17.5" (44.5 cm), 18.8" (47.8 cm) tall.
• Contains a platform with a crank that raises or lowers by 0.100" (2.54 mm) per turn.

See the HydroScat Family pages for an introduction to backscattering optics and calibration; for full details of the procedure, see the calibration manual.

• The tank is filled with water (preferably distilled or deionized).
• A wetted Spectralon? target is placed on the platform.
• The instrument is placed with its face protruding through a hole in the top of the tank, under the surface of the water.
• HydroSoft instructs the user on when to raise and lower the platform.
• Calibration results may be stored in a file, and/or within the instrument itself.