Optical CO2 Sensors & Meters
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Optical CO2 Sensors & Meters O2 measurement in solutions C re-calibrated sensors P ontactless measurement of dissolved CO2 C rom µL to m3 scale F 0.04 – 5 % CO2, 1- 25 % CO2 measurement range

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Optical CO2 Sensors & Meters We bring to light what‘s inside... Products Made in Germany Company Profile PreSens offers a broad range of sensor systems for end users in Bioprocess Control, Biological & Environmental Research, the Food & Beverage industry as well as other industrial applications. Based on research activities started in the 1980‘s PreSens Precision Sensing GmbH was founded in 1997 as a spin-off from the University of Regensburg, Germany. We offer systems for Oxygen measurement in gases and liquids Non-invasive online pH, CO2 and oxygen measurement Oxygen and pH sensors for...

...and work for the following industries. Biotech & Pharma Research Our Biotech & Pharma business field helps pharmaceutical companies such as Roche and DSM to improve their bioprocess develQuality Control opment with PreSens sensors. With two decades of customer feedback our product development provides efficient solutions for your needs. Food & Beverage A cooperation with the market leader for beverage filling systems, Krones AG, Neutraubling, triggered our Food & Beverage business field in the late 1990‘s. PreSens supplies sensors for checking the oxygen-tightness of packaging and...

Optical CO2 Sensors & Meters meters Optical CO2 Meters Online Monitoring of Dissolved CO2 The PreSens CO2 meters are precise fiber optic CO2 measurement devices. While the pCO2 mini can be used with different types of optical CO2 sensors based on a 2 mm fiber, the pCO2 micro works with microsensors in different designs with 250 µm tip diameter. The meters are connected to a PC to run the control software. They are versatile and small and can be used in manifold applications. }} pCO2 mini for non-invasive sensors, robust probes & flow-through cells }} pCO2 micro for high resolution...

Specifications pCO2 sensors Temperature sensor Temperature performance Power supply Temperature: operating / storage Relative humidity Dimensions Weight Digital interface External trigger Analogue output specifications pCO2 mini pCO2 micro (Prototype) 1 x Pt1000 temperature connector (sensor included) - From 0 °C to + 50 °C, resolution: ± 0.1 °C, accuracy ± 1.0 °C -18 VDC / 5 W (110 - 240 VAC, 50/60 Hz, adapter included) From 0 °C to +50 °C / - 10 °C to + 60 °C Up to 80 % (non condensing) 210 mm x 120 mm x 50 mm 0.65 kg RS232 interface (RJ11 4/4 to DSub9, cable included), RS232...

Optical CO2 Sensors & Meters sensors Optical CO2 Sensors Non-invasive & In-process Monitoring The CO2 sensors measure the partial pressure of dissolved carbon dioxide. Sensor spots can be fixed to the inner surface of glassware or transparent plastic material. The CO2 concentration can then be measured from the outside through the vessel wall. The same principle of contactless measurement is used in the CO2 flow-through cells to monitor perfusion systems. But also robust probes that can be dipped into the sample or be integrated via port adapters are available. }} Online dissolved carbon...

Examples for Applications Biotechnology: CO2 Monitoring in Process Development In bioprocess development & production, monitoring dissolved CO2 in addition to pH and O2 provides valuable information. It ensures stress-free cultivation conditions during mammalian cell culture (e. g. CHO cell line). Constant pH and / or oxygen supply and sufficient nutrition levels are key parameters to optimize yield. Thereby, excess CO2 can act as a stressor or even a toxin to the culture and has to be controlled. The optical CO2 sensors can enhance performance of process monitoring during cultivation in...

io Optical CO2 Sensors & Meters SET-UP MEASUREMENT RANGE Bottom Dissolved Oxygen Hard- & Software measurement control, evaluation, export, settings, alerts, etc. APPLICATIONPlastic & GlassIndoor & Outdoor from yL to production scale CO2 Sensor Spots SP-CD1 CO2 Flow-Through Cell FTC-CD1 The CO2 sensor spots are the most versatile version of CO2 sensors. They are attached to the inner surface of any transparent vessel, like e. g. glass bioreactors, sight glasses, or flasks. Measurements are then taken contactless from the outside - through the vessel wall. CO2 sensor spots can be delivered...

Specifications* Measurement range 1 - 25 % CO2 at atmospheric pressure (1013.15 hPa) ± 0.15 % at 6 % CO2 ± 0.5 mmHg at 15 mmHg pCO2 ± 1.2 mmHg at 45 mmHg pCO2 Accuracy** ± 5 % of reading or 0.2 % (1.5 mmHg); whichever is higher Drift at + 37 °C *** typically < 5 % of reading per week Measurement temperature range From + 15 °C to + 45 °C Response time (tg0) at + 20 °C < 3 min. for change from 2 % to 5 % (15 mmHg - 38 mmHg) pCO2 Properties* Compatibility Aqueous solutions, pH 4 - 9 Cross-sensitivity Optical pCO2 sensors display reduced cross-sensitivity to ionic strength...

Optical CO2 Sensors & Meters Measuring with High Spatial Resolution – Sensor Tip below 250 µm pCO2 Microsensors are designed for measuring in small volumes and with high spatial resolution. These sensors are based on a silica fiber with 250 µm diameter, which enables integration into manifold small scale environments. The pCO2 Microsensors are available in different designs - needle-type, implantable or profiling microsensors - and are ideally suited for physiological solutions. }} pCO2 measurements in liquids (0.04 to 5 % pCO2) }} High spatial resolution (250 µm) - precise on-the-spot...