Optical DO Sensor Caps
The standard H0 / H3 Cap is the default options for most applications. The H2 / H4 Cap has a convex design to minimize bubble accumulation and a PTFE membrane that increases the chemical resistance.
The ODO Cap L1 is optimized for trace measurement from 1 to 2,000 ppb, stable against active chlorine and chlorine dioxide, and is the replacement ODO Cap for the VisiTrace mA and VisiTrace RS485. The ODO Cap L0 is the replacement ODO Cap for the VisiTrace DO Ex sensor.
Learn more about Hamilton's optical dissolved oxygen sensor cap options for different applications in our Knowledge Base article.
Resources
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Catalog - Process Analytics
Download the Process Analytics sensor catalog to learn about the complete offering of Hamilton process sensors and accessories. -
Brochure - Optical Dissolved Oxygen
Download the dissolved oxygen brochure to explore the many benefits of making the switch to optical oxygen measurement. -
Brochure - Optical Dissolved Oxygen Sensors for Biopharma
Hamilton extensively investigated the effects of the bioprocess on measurement accuracy. Analysis of sensor aging, chemical attack, and physical damage yielded the necessary understanding for development of a next generation VisiFerm which reduces the need for frequent calibration.
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What is the expected lifetime and when should I replace my ODO cap?
ODO cap health is process specific, with a cap quality indicator in ArcAir representing the general health of the ODO cap. ODO cap quality replacement is advised at 35%, however, some customers may replace ODO caps as part of a preventative maintenance program before reaching 35%. Click to learn more. -
How should I store my optical dissolved oxygen sensor?
Optical DO sensors should be stored in a clean, dry environment prior to use. Avoid prolonged exposure of the inside cap to ambient light to minimize photodecomposition of the luminophore. -
Does my optical DO sensor require calibration prior to usage?
All Hamilton optical dissolved oxygen sensors come with factory calibration; however, for best accuracy, it is recommended that calibration is performed prior to use. The factory calibration does not account for variations in atmospheric pressure or humidity which are often different based on location.
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Cleaning Optical Dissolved Oxygen Sensor Caps
Best practices for care and maintenance of optical dissolved oxygen (ODO) sensor caps. -
Best Practices: Zero Point Oxygen Calibration
There are several methods to achieving a good zero point calibration of optical and polarographic DO sensors. This paper looks at each procedure in depth. -
Understanding Wetted Materials (Stainless, Plastics, & Elastomers)
Wetted materials such as stainless steel, plastics, and elastomers are often listed by different names and abbreviations in different parts of the world. This quick cross reference guide helps sort out the common names for wetted materials used in Hamilton sensors.
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