Process monitoring
Determination and adjustment of limit values
The Main line, Return line and external temperatures as well as the flow rate have a direct influence on the process and are therefore monitored. In the default setting, the limit values for process monitoring are determined and applied “automatically” after each device is started, according to the set monitoring level.
-
On the home basic screen, tap the menu button
Select [Monitoring] > [Monitoring Type]
- Set the parameter to the desired value
On the basic screen, this setting is shown by the monitoring icon:
| Off | There is no automatic monitoring |
| manual | The user determines and sets the limits manual |
| automatically | The unit automatically determines and sets the limits. Manual setting is not possible |
NOTE!
If the monitoring type act set to “Off,” the process is not monitored. This can lead to poor production.
Guideline values for manually setting limit values:
Temperature deviation | Temperature difference | |
| Precision process | 3–5 K | 2–3 K |
| standard process | 5–10 K | 3–5 K |
Monitoring level
The monitoring level determines how closely the tolerances are calculated and applied when setting automatic limit values.
-
On the home basic screen, tap the menu button
Select [Monitoring] > [Monitoring Level]
- Set the parameter to the desired value
On the basic screen, this setting is shown by the monitoring icon:
| fine | Tight tolerances for precision processes (minimal) 1,0 K |
| middle | Medium tolerances for standard processes with increased requirements (minimal) 5,0 K |
| rough | Large tolerances for standard processes (minimal) 10,0 K |
Designation | Monitoring level | Parameter reference | |||||
fine | middle | rough | |||||
factor | minimal | factor | minimal | factor | minimal | ||
Temperature monitoring: | |||||||
[Upper set/actual deviation] | 0,01 | 1,0 K | 0,05 | 5,0 K | 0,1 | 10 K | [Set temperature 1] [Set temperature 2] |
[Lower set/actual deviation] | 0,01 | 1,0 K | 0,05 | 5,0 K | 0,1 | 10 K | |
[Return/main difference] | 1,1 | 1,0 K | 1,5 | 5,0 K | 2,0 | 10 K | [Return line] [Main line] |
[Set/actual difference deviation] | 0,1 | 0,2 K | 0,25 | 0,5 K | 0,5 | 1,0 K | [Set temperature difference] |
[External/Main line difference] | 1,1 | 1,0 K | 1,5 | 5,0 K | 2,0 | 10 K | [Main line] [External] |
Flow monitoring: | |||||||
[Maximum flow rate] | 1,2 | - | 1,4 | - | 1,7 | - | [Flow rate] |
[Minimal flow rate] | 0,8 | 0,5 L/min | 0,6 | 0,5 L/min | 0,3 | 0,5 L/min | |
[Upper set/actual deviation] | 0,02 | 0,1 L/min | 0,05 | 0,5 L/min | 0,1 | 1,0 L/min | [Set flow rate] |
[Lower set/actual deviation] | 0,02 | 0,1 L/min | 0,05 | 0,5 L/min | 0,1 | 1,0 L/min | |
| Pressure differential monitoring: | |||||||
[Pressure difference pump above] | 0,05 | 0,1 bar | 0,15 | 0,3 bar | 0,25 | 0,5 bar | [Set pressure difference] |
[Pressure difference pump below] | 0,05 | 0,1 bar | 0,15 | 0,3 bar | 0,25 | 0,5 bar | |
Recalculate detect
-
On the home basic screen, tap the menu button
Select [Monitoring] > [Reset Monitoring Limits]
- Tap on the play symbol
to start the process.
All activated limit values are automatically recalculated and adjusted during operation — depending on the process and the selected monitoring level.
NOTE!
The symbol of the parameter [Reset Monitoring Limits] indicates that the limit value calculation is active → 
NOTE!
Only active monitored limits (slider switched on 
) are automatically recalculated and applied.