novomatics HEMOTRONIC III, Руководство по эксплуатации

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CHEMOTRONIC III
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A complete cloud point measurement is divided into five segments. Every segment
realises some specific functions according to the requirements of the measurement.
The user can vary the following parameters to influence the measurement
procedure.
1. Time (the period of the segment hold temperature )
2. Setpoint of rotation speed N1 for the segments heating up and hold
temperature
3. Setpoint of rotation speed N2 for the segments cooling down1 and
cooling down2
4. Setpoint of rotation speed N3 for the cooling down3 segment
5. Setpoint of temperature T1 of the segment hold temperature
6. Setpoint of temperature T3 for the start of segment cooling down3
7. Temperature difference between hold temperature and maximal
temperature at which the cloud point measurement will be activiated within
the cooling phase
7. Setpoint of turbidity detection
8. Selection of preferred turbidity recognition mode : Ec, Ac, Pc
1. Segment (heating up and mixing, hu)
The first segment serves to heating up the material under test to the programmed
hold temperature T1 (for instance 230°C). The internal PID-controller uses a
constant temperature gradient to achieve this temperature. Simultaneously the
magnetic stirrer is mixing the substance components within the glass tube by using
the programmed stirring speed N1. If process value of temperature is 5 degrees
lower than the setpoint temperature segment 1 ends.
2. Segment (homogenisation and hold segment, ho)
Within this segment the homogenisation is being continued by using the
programmed stirring speed at the constant high temperature level. The
temperature level corresponds to the programmed hold temperature. The segment