Dissolved oxygen probe diagram. Consequently the measurement of do is critical to. You may also check liquid sensor selection guide to get better familiar with our. It is one of the most important parameters when assessing water quality because of its influence on the organisms living within a body of water. This is a dissolved oxygen sensor kit which is compatible with arduino microcontrollers.
All of our oxygen sensors come pre calibrated and with a barcode. Dissolved oxygen do is an essential measurement parameter in aerobic bioreactors. Optical dissolved oxygen sensors the visifamily of sensors have a blue led in the sensor shaft and an oxygen sensitive dye luminophore fixed to a glass window in the replaceable sensor cap. Cs511 l dissolved oxygen probe.
Figure 13 a current to voltage diagram at different oxygen tension. The growth of all cells is heavily dependent on do because it acts as a terminal electron acceptor in aerobic respiration. Compared to other methods optical o 2 sensors do not consume the analyte during measurements which is an important advantage when measuring in low oxygen environments. When the cathode the reference electrode and the electrolyte are separated from the measurement medium by a polymer membrane which is permeable to the dissolved gas but not to most of the ions and other species and when most of the mass transfer.
The cs511 is a galvanic probe which produces a millivolt signal proportional to the amount of oxygen present in the measured medium. 43 mount probe. Salinity compensation yes pressure compensation yes. A do level that is too high or too low can harm aquatic life and affect water quality.
However if excessive amount of do is added to the process it may limit the growth of the culture and promote undesirable organisms. 1 or 2 point temp. 1 reading per sec. Data protocol uart i2c default i2c address 97 0x61 operating voltage 33v.
The blue light excites the luminophore and then a photodetector in the sensor shaft senses the red light that is returned from the luminophore. Process related drift due to carbon dioxide and other acid gases is fully eliminated with optical technology. Diagram of dissolved oxygen sensors. Maintenance and calibration intervals can also be extended as optical.
Dissolved oxygen sensors optical sensors electrochemical sensors intensity based optical sensors lifetime based optical sensors polarographic sensors galvanic sensors rox available on most 6 series sondes proodo rapid pulse available on some 6 series sondes steady state available on pro20 and. Accuracy 005 mgl response time. This product is used to measure the dissolved oxygen in water to reflect the water quality. 001 100 mgl 01 400 saturation.
Mount the cs511 in water at a slight angle which prevents bubbles from becoming trapped on the membrane. It is widely applied in many water quality applications such as aquaculture environment monitoring natural science and so on. Optical dissolved oxygen sensors offer a significant improvement over traditional amperometric sensors commonly used in the demanding applications found in pharmaceutical biotechnology and beverage applications. Our oxygen sensors cover a measurement range from 1 ppb up to 45 ppm dissolved oxygen and even measure ultra low oxygen traces down to 05 ppmv o 2 in gases.
B calibration obtained at a fixed polarization voltage of 600 mv. Supported probes any galvanic probe calibration.