Applicable for Upstream + Downstream
Optical Sensor For Absorption Measurement
EXcell 241 is a high precision digital NIR absorbance sensor for DN25-weld in sockets that monitors biomass measurement in biotech, food, and pharma applications for both lab and industrial production processes.
Last Updated: January 6, 2023
NIR Biomass Sensor DN25
The EXcell 241 is a high precision digital NIR-absorbance sensor for DN25-weld in sockets that monitors biomass in biotech, food, and pharmaceutical applications. The sensor is a reliable, robust, and cost-efficient measuring device for typical industrial fermentation vessels thanks to its stainless steel construction, non-wearing sapphire windows, LED technology and integrated digital amplifier. Different measuring units, such as EBC, FAU, mg/l, AU, OD or customer-specific units, can be issued for mass, turbidity, and absorbance.
The associated EXpert software makes it simple to parameterise the sensor on a PC, and it also allows you to store, export and graphically display the measured data. There are also interfaces for Modbus RS485 and for 0-20mA current output available.
A G1 1/4″ thread connects the sensor to the weld-in socket. To ensure the most sterile installation, the O-ring position can be freely selected based on the existing socket.
|Technical Specifications*||*Subject to change without notice|
|Measuring range||0...6 AU, 0...6600 EBC|
|Resolution||0,1 % or 0,01 AU|
|Accuracy||± 1 %|
|Reproducibility||≤ 1 % from final value|
|Optical path length||5 / 10 / 20 mm|
|Immersion length||70-85 mm / 110-125 mm|
|Wetted material||Stainless steel 1.4435 (316L)|
|Surface||Ra <0.37 µm e-polished|
|Process connection||Thread G1 1/4|
|Process temperature||0...90 °C, 135 °C max. 1 hour (SIP cycle)|
|Process pressure||Max. 10 bar (150 psi)|
|Electrical connection||Fischer Core Series|
|Cable length||2 m / 5 m|
|Interfaces||USB, RS485 Modbus, 0...20 mA with switching output|
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