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Techne BFS High Temperature Calibration Bath
This product is now obsolete. To see the current Techne range, please click here.
 Temperature range
200degC to 1100degC
Working volume diameter x depth = 203 x 203mm
The BFS is designed for applications requiring a
constant high temperature source for
calibration. The BFS has a hinged lid and a
cylindrical bath 218mm in diameter and
254mm deep. Substantial fire brick insulation is
incorporated within the outer container and
the lid.
Standard equipment includes a separate air
supply control unit which incorporates two
flowmeters for monitoring the air supply and a
charge of fluidising medium (aluminium oxide)
and air diffuser (zirconium oxide).
The inner container of the BFS is filled with two
layers of fine granular particles. The lower layer
(zirconium oxide) is denser than the upper layer
(aluminium oxide) and does not fluidise but
instead acts as a heat insulator. The inner
container of the BFS is divided into inner and
outer fluidised sections. Each area has a
separate air supply which must be oil, water
and dust free.
The air supply may be monitored on
flowmeters in the air flow unit. Air supplies are
adjustable to obtain uniform fluidisation in
both sections of the bath. Heaters are mounted
in firebrick insulation between the inner and
outer container; heat is radiated inwards to the
fluidised bath.
An air extraction tube is located in a horizontal
position in the side of the bath just below the
hinge on the lid. When the lid is closed, dust
created by the bath's operation can be
withdrawn by connection to an extraction duct
or fan. The dust can also be trapped in a small
tank of water.
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For a larger view, please click on the photo above.
TC-5 Temperature Controller
The TC-5 uses a chromel/alumel thermocouple,
supplied as standard, which mounts onto the
back of the BFS and fits into the pocket of the
inner container. The TC-5 is fitted to the air
flow control unit. The TC-5 uses an Eurotherm
controller for setting the temperature in the
fluidised bath and will control and indicate the
bath temperature.
BFS Controller 2404E
Advance PID controller giving set and actual
bath temperature read out. Control algorithm
gives stable 'straight line' control with self and
adaptive tuning.
Data Sheet
Manual
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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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