Centrifuge control with optek sensors

Optek sensors can be installed at the inlet and outlet of centrifuges to
greatly improve separation performance, reduce losses and improve product

Feed/ Inlet

The feed often has high variable solids loading. Separation efficiency
can be greatly improved by installing an optek AF16-N or AS16-N just ahead of
the separator. The separator feed rate can then be optimised based on real-time
solids concentration measurements. The flow may be adjusted to meet system
requirements for optimised performance and prevent overloading or clogging of
the separator.

Outlet (Discharge)

The separator outlet (discharge) is the most common point of
installation for process photometers. Monitoring at this point can help maximise
the efficiency of the system. Some systems control discharge based on time
parameters set from the previous run, which is only valid with an average
constant feed load.

A more efficient approach is to control the discharge based on need,
which can be monitored by an optek inline sensor. By using an optek turbidity
sensor to control the discharge based on requirement, the number of discharge
cycles can be reduced significantly. This increases yield, ensures consistency
downstream, reduces mechanical wear, and helps avoid ‘blinding’ of downstream

Typically for cell culture processing, an optek TF16-N scattered light
sensor is installed to ensure immediate detection of lowest concentrations. An
optek AF16-N absorption sensor is commonly used for higher density fermentation

Solids Discharge

When measuring the absorption in the solids discharge stream of the
separator, an optek sensor equipped with a small optical path length will
accurately correlate absorption measurements directly to weight percent. This
enables accurate yield measurement and control of product quality.

For further information, please visit the AMS Instrumentation and Calibration website www.ams-ic.com.au or
call 03-9017 8225, or Freecall (NZ) 0800 442 743.

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