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Techne FB-08C Fluidised Bath
The FB-08C has been designed to allow for calibration
of thermal sensors over the temperature range 50degC to
700degC with minimum supervision and works in
conjunction with a supervisory computer via an RS232
(or optional IEEE488) interface. Basic control
programmes are set by the operator allowing for the
control of set temperature, incremental temperature
steps, dwell times and control of dead bed state.
Temperature range 50degC to 700degC
Temperature stability, as good as
Working volume diameter x depth 165
PID temperature control
Multiple set points and dwell times can
be set by computer/programmable
To allow the operating temperature of the
fluidised bath to be adjusted from a remote
source while the bath is unsupervised, an
automatic fluidising air control system is fitted
which alters the air flow rate according to the
temperature of the fluidising medium. This
automatic air feature is controlled by
electronics which switch five solenoid valves.
These valves are opened and closed in various
combinations, providing eighteen air flow
rates corresponding to eighteen different
temperatures throughout the operating
Where an ultra stable temperature condition
is required a 'dead bed' state can be
programmed into the control system. During
this 'dead bed' state the air and electrical
supply to the fluidised bed are switched off.
For a period of up to 6 minutes the fluidised
bed becomes an isothermal mass without
heat input and very low heat loss. Under
these conditions the stability at the centre of
the aluminium oxide is +/-0.01degC over the
range of the unit.
The air flow to the fluidised thermal mass is
automatically adjusted in order to maintain
ideal isothermal conditions throughout the
temperature range of the unit.
Variable ramp rates of heating can be
programmed with the built in Eurotherm
2408 controller or via a PC using an optional
software package (please contact our sales
office for information).
A probe holder is available as an accessory which is manufactured to
special order to suit sensors under test that
enhances the thermal conditions (control
stability and uniformity) of the temperature
zone within the baths.
For a larger view, please click on the photo above.
standard controller Eurotherm 2408
The Eurotherm provides superb control by
using a combination of a highly developed
three term control strategy, supported by
both self and adoptive algorithms with dual
The adaptive tune runs continuously in the
background. It monitors the process and
modifies the control if a disturbance takes
process outside preset limits.
The programmer has one programme of 16
segments (4 and 20 program model are also
available please contact our sales
High resolution ramping
with assured soak periods
provide a precise capability.
FB-08 and FB-08C Upgrade to fit Dust Suppression System and Probe Holder
Please note - Product designs and specifications are subject to change without notice. The user is responsible for determining the suitability of this product.
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