Multitron Pro - Incubation Shaker
Setup and function
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2013-02-19
4.16 Option Mobile Pt100 sensor
The incubator shaker can be additionally equipped with a mobile
temperature sensor that extends the functionality of the integrated
temperature sensor.
The mobile Pt100 sensor is integrated into the control system as a
cascade, i.e. the mobile Pt100 sensor delivers additional
temperature data measured in the liquid.
Measurement and control are still carried out via the integrated
temperature sensor.
NOTICE!
The cascade control can be disabled. This involves
disconnecting the mobile Pt100 sensor from the
measuring unit by a qualified specialist from the
equipment manufacturer.
Fig. 51
The mobile temperature sensor is inserted into a holder on the rear
wall of the incubation chamber.
It can be used
in a reagent flask
underneath disposable culture bags.
During operation, the mobile temperature sensor must be placed in
a reference flask containing water or, if incubation is carried out in
a disposal culture bag, it must be placed in its intended position
underneath the bag.
The temperature is controlled automatically in the cascade mode,
i.e. the value measured by the mobile temperature sensor is the
actual temperature of the liquid. This value is used as a reference
variable for controlling the temperature inside the incubator. This
has two advantages:
Control is more precise because the temperature is measured
directly in the liquid. It eliminates the uncertainty associated
with measuring in air due to heat transfer from the air to the
liquid.
In the event of temperature jumps, e.g. for thermal induction of
protein expression, the target value in the liquid can be reached
much faster and more accurately.
