IKA labworldsoft - Manual (Page 120)

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The 5(7 FRQWUROYLVF VDIHW\ FRQWURO magnetic stirrer by IKA Werke is a magnetic stirrer with
heating function and viscosity trend recognition. The appliance is ideal for accurately and safely
maintaining the temperature (0 to 340 °C) of substances placed onto the hot plate in vessels.
The integrated stirrer drive allows you to simultaneously stir the substances using a magnetic
rod located in the vessel (0 to 1500 min -1 ). The mixing intensity depends on the motor speed
and the size of the magnetic rod.
The required control quantities and the measurements to be read out can be activated in the
parameters window of the magnetic stirrer. The relevant input and output paths are marked with
digit fields. The default setting for output path 1 is the target temperature read-out.
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1. Input path for target temperature.
The target temperature refers to the medium when an external temperature sensor is
connected. If there is no temperature sensor connected, the target temperature refers to
the hot plate.
2. Input path for hot plate target temperature (only active when input path 1, target
temperature of medium, is also activated). This control should only be used for critical
controlled systems, e.g. for extremely large volumes – for sub-optimal control types in the
case of single control of the medium’s target temperature.
3. Input path for target temperature.
4. Viscosity trend measurement on/off. (e.g. use switch module for control)
The viscosity trend display will be reset.
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1. Target temperature in °C. The target temperature refers to the medium when an external
temperature sensor is connected. If there is no temperature sensor connected, the target
temperature refers to the hot plate.
2. Target temperature of hot plate in° C.
3. Target speed in 1/min.
4. Actual temperature of medium sensor in °C.
5. Actual temperature of heat carrier sensor in °C. When operated with a 2*Pt1000
temperature sensor.
6. Actual temperature of hot plate in °C.
7. Safety temperature of hot plate in °C.
If the specified target temperature is higher than the safety temperature, the target value
will be ignored.
8. Safety temperature of external temperature sensor in °C.
If the specified target temperature is higher than the safety temperature, the target value
will be ignored.
9. Actual speed in 1/min.
10. Relative viscosity trend in % (corresponds to change in motor power input).
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1. Watchdog active/not active
2. Watchdog time-out time