Can M4 Knick measure oxygen in a gas phase?
Yes. Each of our oxygen sensors can measure oxygen either in an aqueous solution (dissolved) or in a gas phase up to 1,200 mbar PO2.
What is LDO?
LDO stands for Luminescent Dissolved Oxygen and is also sometimes referred to as “Optical”. LDO sensors such as the
SE 740 measure oxygen concentration via interaction between the oxygen molecules in the sample and a luminescent dye layer on the sensor’s cap.
What is the lowest detection limit for M4 Knick’s oxygen sensors?
The
SE 707 has a detection limit of ≥ 1 ppb (part per billion). It is designed specifically for trace measurements of oxygen.
What type of maintenance is required for M4 Knick’s oxygen sensors?
Maintenance required for your oxygen sensor depends on the model of the sensor and the application in which it's applied. Typical maintenance includes cleaning the sensor and replacing worn parts and consumables such as o-rings, membrane modules, and electrolytes (for amperometric sensors), or the sensor cap on an LDO sensor.
How often do you calibrate an oxygen sensor?
Calibration frequency depends on the application in which the sensor is applied. Calibration should always be done after the replacement of electrolyte and/or the membrane (amperometric sensors) or replacement of the sensor cap (LDO sensors).
What are the max temperature ratings for your oxygen sensors?
We have sensors for a wide variety of oxygen applications. Depending on the model, our sensors are designed to handle temperatures up to 185°F (85°C) during continuous measurement. They are also designed to handle CIP/SIP cycles up to 284°F (140°C).
What are the max pressure ratings for your oxygen sensors?
We have sensors for a wide variety of oxygen applications. Depending on the model, our sensors are designed to handle pressures up to 174 psi (12 bar).
How do M4 Knick’s oxygen sensors handle build-up?
Build-up on any oxygen sensor over time can impact the measurement. Our sensors are designed to provide stable measurements even with some buildup on the membrane or measuring cap. We have multiple options for integrated cleaning of the sensor within our holders and flow cells.
