OxyGold B

OxyGold B traditional dissolved oxygen sensors are well suited for applications that contain carbon dioxide or other acidic gases. The sensor offers an industry standard VP connector with a traditional nanoamp (nA) output for connection with most commercially available controllers and transmitters.

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  • Oxy Gold B Dissolved Oxygen Sensor

Commonly Grouped Accessories

Accurate oxygen measurement in CO₂-rich environments.

Reliable performance with standard VP connector.

Easy integration with existing control systems.

CO₂-Resistant Design

Ideal for applications with carbon dioxide or acidic gases.
Delivers consistent oxygen measurements without interference.

VP Connector Compatibility

  • Equipped with an industry-standard VP connector.
  • Ensures easy installation with most commercially available controllers.
Scientific Citations

  • I could not be more pleased with my experience with Hamilton!

    My company has been using Hamilton probes for years and have always been happy with their performance! The team is always very helpful in trouble shooting issues and answering any questions that we may have about our probes. Overall, I could not be more pleased with my experience with Hamilton!

    Abigail Mann
    Bioprocessing Fermentation Associate at Heliae Development

  • The sensors allowed us to improve the end product.

    We have high quality standards and are convinced that Hamilton is able to meet them with its oxygen sensors. We use the oxygen sensors throughout the entire area of ​​beer production and bottling. The sensors allowed us to improve the end product. Hamilton's support is excellent at all times.

    Marco Punke
    Team leader for technology and QM/UM, Princely Fürstenbergische Brewery GmbH & Co. KG

OxyGold B Specifications

Print
Process Connection PG13,5
Sensor Family OxyGold B
Wetted Parts Stainless Steel 1.4435
EPDM (Ethylene propylene elastomer)
FKM (Fluorocarbon Elastomer)
VMQ (Silicone elastomer)
See compliance details in Material Specification document
Electrical Connector VP6
Measuring Range 8 ppb to 40 ppm (DO) or 0.2 to 1000 mbar (pO₂)
Electrolyte Oxylyte B
Drift at Room Temperature < 1 % per week
Membrane Cap Standard
Oxygen Consumption Ca. 100 ng/h in air at 25 °C
Temperature Sensor NTC 22 kOhm
Current in Air at 25 °C 180 to 500 nA
Surface Quality of Steel Ra < 0.4 µm (N5)
Electrode system Silver platinum combination
Polarization Voltage and Time 0 ± 50 mV, ≥ 24 hours
Serial Number Yes
Response Time t98% < 60 s at 25 °C
Certificate Material and Performance Test Certificate
ATEX Approval II 1/2 G Ex ia IIC T4/T5/T6 Ga/Gb; II 1/2 D ia IIIC T x °C Da/Db
IECEx Approval II 1/2 G Ex ia IIC T4/T5/T6 Ga/Gb; II 1/2 D ia IIIC T x °C Da/Db
Diameter 12 mm
Autoclavable No
Steam Sterilizable No
CIP Yes
Operating Temperature Range 0 to 100 °C
Pressure Range bar g 0 to 12 bar
Max. CO₂ Partial Pressure 12 bar
Required Flow ≥ 0.1 m/s

OxyGold B Resources

Browse app notes, user guides, specification documents, and more in our Knowledge Center.

Browse app notes, user guides, specification documents, and more in our Knowledge Center.

Browse app notes, user guides, specification documents, and more in our Knowledge Center.

Diagram of a three-electrode electrochemical cell (W, R, C) with a voltage controller and polarization voltage labeled.

Article

Principles of Polarographic Measurement

Historically, polarographic sensors have been a common design for oxygen measurement. This article reviews the basic design principles of polarographic oxygen measurement.
Polarographic do sensor diagram

Article

What is a Polarographic Dissolved Oxygen Sensor?

This article discusses polarographic dissolved oxygen sensors. A polarographic sensor is commonly used to determine the dissolved oxygen concentration in a liquid.
Green circle icon with a dark navy lightbulb containing two interlocking gears, on a teal dotted background.

Article

Electrolyte & Membrane Replacement for Polarographic DO Sensors

This quick guide discusses how to replace the electrolyte and membrane on OxyFerm and OxyGold polarographic DO sensors.

Browse app notes, user guides, specification documents, and more in our Knowledge Center.

Two overlapping green speech bubbles with a question mark on a dark navy circular background

FAQ

Does salinity impact my DO measurement?

Yes, salinity of a solution generally has an inverse relationship to the dissolved oxygen content within the solution. Arc sensors can have the salinity value of the liquid added in to correct the measurement by using ArcAir.
Two overlapping green speech bubbles with a question mark on a dark navy circular background

FAQ

How much torque is needed to install a sensor with PG13.5 threads?

Sensors with PG13.5 threads rely on the o-ring to seal against process pressure. Finger-tight (approximately 2 Newton Meter or 18 inch-lb) should be sufficient to install the sensor without leakage. Additional tightening beyond this can deform the o-ring or strip the threads.
Two overlapping green speech bubbles with a question mark on a dark navy circular background

FAQ

How should I store my polarographic DO sensor?

For short term storage (< 1 month), polarographic DO sensors should be stored wet in electrolyte solution with the membrane immersed in a watering cap. For long term storage (> 1 month), remove internal electrolyte, rinse cathode and membrane in deionized water, and store dry.
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