YSI 6150 ROX Dissolved Oxygen Sensor

The YSI 6150 Reliable Oxygen Sensor (ROX) is a luminescent-based DO sensor that provides accurate long-term measurements in severe fouling and low oxygen environments.

  • Features
  • Specifications
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The 6-Series YSI 6150 ROX is a luminescent-based dissolved oxygen sensor that offers YSI customers a powerful tool for making long-term oxygen measurements in severe fouling and low oxygen environments. Its rugged design and large measurement range make it ideal for sampling, flow cell, and groundwater measurements.

Used with 6600EDS, 600OMS, 6600, 6600V2, 6920V2, 6820, 6820V2, 6920

The ROX optical sensor uses an integrated wiping system to provide anti-fouling in the most hostile environments.

Durable mechanical features include:

  • a non-corroding titanium wiper shaft,
  • replaceable wiper shaft seal, and
  • a switch controlled wiper parking system to prevent mis-parking.
  • easy to replace membrane with a usable life of one year

The ROX sensing system is based on the luminescence lifetime method. This method was chosen because it offers the most stable, repeatable and sensitive method for oxygen detection, thus reducing sensor drift and prolonging deployment times.

YSI's optical DO membrane differs from the traditional electrochemical sensor membrane, requiring fewer steps for installation and less maintenance. ROX membranes will last for one year and are made of a durable material that is unlikely to be damaged in the field. The ROX sensor eliminates stirring dependency that was required of most traditional polarographic sensors.

Notable Specifications:

  • Range: 0 to 500%; 0 to 50 mg/L
  • Resolution: 0.1%; 0.01 mg/L
  • Accuracy (0 to 200%): +/-1% of reading or 1% air saturation, whichever is greater
  • Accuracy (200 to 500%): +/-15% of reading
  • Accuracy (0 to 20 mg/L): +/-0.1 mg/L or 1% of reading, whichever is greater
  • Accuracy (20 to 50 mg/L): +/-15% of reading
Depth / Pressure Rating / Limit 60 m
Equipment used with 6600EDS, 600OMS, 6600, 6600V2, 6920V2, 6820, 6820V2, 6920
Medium Fresh and Salt Water
Monitoring Yes
Parameters Measured Dissolved Oxygen
Sampling Yes
User Calibratable Yes
User Replaceable Yes
Warranty 2 years for the sensor, 1 year for the replaceable ROX membrane cap