K-Patents SeedMaster 2 - Manual (Page 71)

10 DISPLAY 71
71
STRIKE HISTORY
STRIKE HISTORY (Fig. 10.7) contains condensed numerical information on supersaturation in critical points
of up to 4 strikes (current or actual and 3 previous strikes). These supersaturation data are:
SEED : Supersaturation in the seeding point (not depending on the mode of seeding).
MAX. : Highest supersaturation after seeding has been completed.
MIN. : Lowest supersaturation after seeding has been completed.
END : Supersaturation at the end of the strike.
AV. : Average supersaturation from seeding to the end of strike.
DISPLAY->STRIKE HISTORY : SUPERS. 1 / 0 . 1
NO . SEED MAX. MIN. END AV.
ACT. 1 . 1 2 1 . 1 6 1 . 0 7 1 . 0 9 1 . 1 3
- 1 1 . 1 2 1 . 1 6 1 . 0 8 1 . 0 8 1 . 1 1
- 2 1 . 1 2 1 . 1 5 1 . 0 7 1 . 1 0 1 . 1 5
- 3 1 . 1 2 1 . 1 4 1 . 0 7 1 . 0 9 1 . 1 3
BACK BACK
Fig. 10.7
NOTES:
1. Less than 1,00 supersaturation when seeding (SEED) results in loss (dissolution) of the seed
crystals. This can lead to low crystal content when dropping the charge. If it was higher than the critical
supersaturation (see Fig. 2.1), than most probably shock seeding was practiced, and / or
spontaneous nucleation took place.
2. If the MAX value was larger than the critical supersaturation it most probably will be shown in inferior
product quality (fines and conglomerate content, product color, see Ch. 2.5).
3. Less than 1,00 MIN or END value results in the loss of already crystallized sugar, low crystal content
and / or long strike time.
4. The average value of supersaturation is inversely proportional to crystallization time.
5. The average value can be directly used to answer the appropriate question during Configuration.
6. In case of mains failure during a strike AV can not be calculated. N.A. will be displayed.
IMPORTANT:
STRIKE HISTORY provides a very efficient and fast method to asses the level of control (manual or
automatic) exercised.
DETAILED STRIKE HISTORY
Detailed strike history, that is in-depth information on up to 11 massecuite parameters and measured data
acquired during the last 4 strikes (current, or actual and 3 previous ones) can be obtained by using the
TREND-s, which are automatically prepared by SeedMaster 2 (see Ch. 10.2).
WHEN USED EFFECTIVELY, STRIKE HISTORY TOOLS CAN HELP TO VASTLY IMPROVE
CRYSTALLIZATION PRACTICE. If a PCS is in use, strike history data can be sent to it for further use (see
Ch. 11).
10.4 STANDARD DISPLAY
The STANDARD DISPLAY (Fig. 10.8) can be used to display 2 (per crystallizer) preferred parameters of the
massecuite with large characters. The 2 parameters can be selected from those available (maximum 11) for
this type of display during the SET UP -> DISPLAY operations (see Ch. 8.1).