IKA RET Control-Visc Mode D'emploi page 26

Safety
Settings
Change the menu items by turning the rotary knob (D) and confirm by pushing it.
Menu (details)
Stirring
Torque trend measurement
The torque trend measurement is used to deduce the change in
viscosity of the reaction medium.
The devices are not designed to measure absolute viscosity. They
only measure and display the relative change in the viscosity of the
medium from a starting point specified by the user.
Once the speed of the motor and magnetic rod in the medium
have stabilised to the target speed, the viscosity measurement is
started at 100%.
Consequently, an increase in the measured torque trend is indicated
by a value > 100% and a reduction in values < 100%.
The value can always be reset to 100% by pressing the "Back" (F)
membrane key.
Note:
Torque trend measurement only works for a constant set
speed for the duration of the measurement.
As a result, intermittent mode cannot be used in
conjunction with torque trend measurement.
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Time Out Set ..................................................................... 00:30 [mm:ss]
Speed .................................................................. 100 rpm
Temperature........................................................... -
Password ................................................................................... 000
Safe temp confirmation ................................................................ -
Er5............................................................................................... 05:00
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Unit Temperature
Display
Background
Firmware Update Information
Sound
Key Tone .............................................. -
Factory Settings
Communication
Bluetooth.............................................. -
Eurostar Control
Information
Stirring................................................. -
Heating ................................................. -
Safety .................................................. -
Software .............................................. -
Firmware Update Information................... -
ºC...................................... ºC
ºF (not available for Japan)..... -
Black ...................... Black
White .......................-
RS232........................ -
USB............................ -
Minimum Speed.......... -
The current control variable is saved as the reference 100% ΔP
and shown on the digital display. The change in the viscosity is
then shown in %. Depending on whether the viscosity increases
or decreases, the percentage rises or falls above or below 100%
respectively.
Stirring bar decoupling
If the device detects that a stirring bar has broken away, the stirring
function is interrupted temporarily in order to pick up the bar. The
system then returns to the previously set speed. When the system
detects a bar decoupling, this is indicated with a special symbol
( instead of symbol 16). If another stirring bar decoupling
occurs within the next 3 minutes (as long as the target speed has
not been modified), once the bar is recovered the system only goes
up to a speed of 100 rpm. In the case of 4 consecutive stirring
bar decouplings -with less than 3 minutes' normal speed between
them - the error message ER 41 is displayed. The speed is reduced
to 200 rpm and the heating is switched off.
In such cases, the testing conditions will need to be reconsidered.
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