OxyGold G 120

Part # 237395

OxyGold G traditional dissolved oxygen sensors are well suited for trace level oxygen measurement applications such as boiler feedwater and pure water used in microelectronic rinse. The sensor offers an industry standard VP connector with a traditional nanoamp (nA) current output for connection with most commercially available controllers and transmitters

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Minimum: 1, Maximum: 1000

Commonly Grouped

Precision oxygen measurement at trace levels

Reliable performance in pure water and boiler feedwater applications

Ultra-Low Oxygen Detection

  •  Ideal for trace-level oxygen measurement in boiler feedwater and microelectronics rinse processes.

Industry-Standard VP Connector

  1.  Ensures seamless integration with most controllers and transmitters.

  • 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

  • Hamilton sensors enhance safety, efficiency, and reliability in chemical processes.

    Hamilton sensors and retractable fittings are not only essential for monitoring and controlling our chemical processes, but also make preventive maintenance and fault diagnosis much easier. The robustness and durability of the products mean fewer emergency call-outs and greater overall plant effectiveness. Overall, the sensors make a significant contribution to the safety, efficiency and reliability of our operating processes and help us to meet and exceed our high standards.

    Dimitri Brumm
    EMR Operating Engineer - Cassella Chemiepark

OxyGold G 120 Specifications

Print
Process Connection PG13,5
Sensor Family OxyGold G
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 1 ppb to 40 ppm (DO) or 0.02 to 1000 mbar (pO₂)
Electrolyte Oxylyte G
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 -670 ± 50 mV, ≥ 2 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 Yes
Steam Sterilizable Yes
CIP Yes
Operating Temperature Range 0 to 130 °C
Pressure Range bar g 0 to 12 bar
Max. CO₂ Partial Pressure 0.01 bar
Required Flow ≥ 0.1 m/s
a-length 120 mm

OxyGold G 120 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.

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.

Article

Glossary of Sensor & Biopharma Acronyms & Abbreviations

Acronyms and abbreviations are commonly used with process analytics measurements found in the biopharma industry. This glossary is an attempt to de-code some of the more frequently used acronyms.

Article

Polarographic Oxygen Sensor Maintenance

Polarographic sensors are electrochemical and thus require periodic maintenance to maintain best accuracy. This article looks at each style of Hamilton polarographic sensors and the recommended maintenance regime.

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

FAQ

When should I replace the membrane and electrolyte in my polarographic DO sensor?

The frequency of membrane and electrolyte replacement is process specific and will vary. Routine calibration before each run can identify a high nA current at the nitrogen zero point or low nA current in air, indicating a need to replace the membrane and electrolyte. Click to learn more about membrane replacement.

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.

FAQ

Does carbon dioxide sparging impact my DO measurement?

CO2 sparging will not impact the DO measurement using an optical DO sensor. CO2 can impact traditional polarographic DO sensors over time thus more frequent electrolyte replacement may be needed.
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