DO Hamilton optical

Re-Usable-Sensor (RUS) in Single-Use VisiWell

Hamilton manufacture the VisiFerm™ optical oxygen sensor with 0-300% saturated O2 range. We manufacture and install optionally (before bagging and E-beam irradiation) ) the unique non-invasive transparent Polycarbonate VisiWell integrating the optical active black spot. 

VisiWell design as supplied from year 2016 to 2019. VisiFerm was inserted, dumped into the well without end-cap. Now an obsolete product.

VisiWell design supplied from 2020 Q1 and ahead. VisiFerm is now screwed into the VisiWell for improved measuring accuracy. Remember to remove both O-rings and the cap from VisiFerm.

The user inserts their own re-usable VisiFerm™ DO sensor (without stainless-steel end-cap and two O-rings) into the non-invasive VisiWell. Screw the VisiFerm into position gently by hand only. NO tools needed for less than 0.01 Nm torque. There is no contact between VisiFerm and the media. No autoclaving of VisiFerm is required ensuring the sensor obtain a long and stable lifetime.

Check out details from Hamilton here -

VisiFerm is available in PG 13.5 x 120, 220, 320, 420 size in both analogue and digital (ARC) versions. VisiWell in corresponding lengths selected to be pre-installed in various various SUBs, SUFs and SUMs.

Calibration according to Hamilton recommendations:

  • Insert VisiFerm in the VisiWell with no media in the SUB / SUF and calibrate traditional at 100% saturation.
  • Fill media in the SUB / SUF.
  • Calibrate

Hamilton product information focusing on the VisiFerm DO sensor. Click on thumbnail and download.