Typically a benchtop application is less than 5L, and uses a glass vessel or flask. Usually, the entire vessel can be placed or wheeled into an autoclave for sterilization prior to a run. Not only is there a range of different vessel sizes used in benchtop bioprocess applications, but also the volume of the media in the vessel will often change during the process. Accordingly, the sensors for benchtop vessels are available in a wide variety of lengths.
The operator must choose a sensor length that ensures the sensor tip is submerged at all times during operation. Some sensor models have been configured to thread directly into the head plate and various access ports found on small vessels. Detachable cables and other design features allow these products to withstand the demands of autoclaving requirements.