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Frequently asked questions
Optical sensors from brands like Xylem WTW and Mettler-Toledo require less maintenance and no warm-up time compared to traditional polarographic electrodes, making them ideal for high-throughput laboratory and field environments. For dissolved oxygen meters, also check sample type, sensor or fixture compatibility, and calibration requirements so the product fits the complete procedure.
To ensure data integrity, oxygen sensors should be calibrated daily. Most modern instruments from Mettler-Toledo and Lovibond offer easy one- or two-point calibration processes using water-saturated air or zero-oxygen solutions. The final choice should reflect sample type, sensor or fixture compatibility, and calibration requirements, as these points influence day-to-day compatibility and repeatability.
The solubility of oxygen in water is highly temperature-dependent. Professional devices from Thermo Scientific and Knick include automatic temperature compensation to ensure that your O2 readings are accurate regardless of sample temperature fluctuations. Before ordering, confirm sample type, sensor or fixture compatibility, and calibration requirements and any accessories or consumables needed for routine use.
Specialised electrodes from Conducta and Mettler-Toledo are specifically designed to withstand the rigours of fermentation processes, including high-temperature sterilisation and varying chemical conditions. The final choice should reflect sample type, sensor or fixture compatibility, and calibration requirements, as these points influence day-to-day compatibility and repeatability.
We offer robust, portable measurement devices from Xylem WTW and Thermo Scientific that are designed for on-site environmental monitoring and are fully waterproof for reliable performance in harsh conditions. For dissolved oxygen meters, also check sample type, sensor or fixture compatibility, and calibration requirements so the product fits the complete procedure.