Temperature Stabilisation Unit Tce/P With Cone Heater Tc1; Cone Heater Tc1; Correct Application Of The Ceramic Rotors - Thermo Scientific HAAKE RotoVisco 1 Instruction Manual

Temperature Control Units
11.6 Temperature stabilisation unit TCE/P with

cone heater TC1

The temperature stabilisation unit has a holder for the mea-
suring plate. The measuring plate is placed and secured
onto the electrically heated temperature stabilisation unit.
The wedge and measuring plates should have the same dia-
meter, for example like the taper C60/1 with the measuring
plate attachment MPC60 and the plate PP35 with the mea-
suring plate attachment MPC35. Otherwise unavoidable
measuring errors arise!
11.7 Cone heater TC1
The high temperature system TC1 was developed for the
measuring units with a TCE/P temperature stabilisation unit
for rheological measurements at temperatures of > 0C to
350C with and without external cooling. Inert gas should be
used for cooling.
A PID controller is used to control the temperature, with the
upper and lower heating elements being regulated separa-
tely and independently of each other. Each of the two sy-
stems has individual control parameters and its own control
sensor.
This enables the lower part to also be used separately for
temperature control in order to improve the handling (albeit
at the expense of the temperature stability) and so that the
behaviour of the flowing sample material can be observed
better.
When the measuring element body is fitted, only tapers and
plates with ceramic shafts can be used.
We generally recommend in the case of measurements over
+60C that these special measuring geometries be used in
order to minimise unwanted heat dissipation via the shaft.

11.7.1 Correct application of the ceramic rotors

We recommend the use of the tools supplied at the same
time in order to ensure that the ceramic rotors are properly
screwed in. Insert the Allen key supplied into the ceramic
shaft opening above the cone heating and fasten the
rotor. Tighten the union nut by hand.
!
For applications at elevated temperatures above 250C
it is a must to switch the fan for the air bearing cooling
on stage 2 (on the rear) and use ceramic shafts only.
Furthermore use the cone heater TC1 as thermal shield
to prevent the heating up of the air bearing housing!
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