The sensor is designed according to ASME BPE and EHEDG allowing its use in applications with highest hygiene requirements such as fermentation, inertization or drinking water production.
Memosens COS81D with c-shaped tip of the sensor cap. Use this cap for oxygen measurement in liquids such as fermenter applications, to prevent the attachment of air bubbles.
Memosens COS81D with u-shaped tip of the sensor cap. Use this cap for oxygen measurement in gas phases such as in inertizations, where abrasive particles could damage the cap's optical layer.
Process control in enzyme production, control of culture growth, biotechnology, food industry, general process applications
Installation
Standard process connection Pg 13.5 Installation in standard pH assemblies possible
Characteristic
Hygienic, optical sensor for stable oxygen measurement over multiple sterilization cycles Measurement possible in still water
Measuring range
0.004 to 30 mg/l 0.05 to 330 %SAT 0.1 to 700 hPa
Measuring principle
Oxygen-sensitive molecules (marker) are integrated in an optical active layer (fluorescence layer). The fluorescence layer surface is in contact with the medium. The sensor optics are directed at the back of the fluorescence layer. The sensor optics transmit green light pulses to the fluorescence layer. The markers respond (fluoresce) with red light pulses. The duration and intensity of the response signals depend directly on the oxygen contents or partial pressure.
Design
Optical System, stainless steel
Material
Sensor shaft: stainless steel 1.4435 Process seal: FKM (USP <87>, <88> Class VI and FDA) Seal/O-rings: EPDM, FFKM (USP <87>, <88> Class VI and FDA)
Dimension
Diameter: 12 mm (0.47 inch) Shaft length: 120, 220, 360 and 420 mm (4.72, 8.66, 14.2 and 16.5 inch)
Process temperature
0 to 140 °C (32 to 284 °F)
Process pressure
0.02 to 13 bar abs (0 to 190 psi)
Temperature sensor
Pt1000 (Class A according to DIN IEC 60751)
Connection
Memosens-connection head
Additional certifications
Material certification 3.1 ASME BPE-2016 Regulation (EC) No. 1935/2004
