1.
Press the Enter key to open the menu.
2.
Select the menu items
Setup
Temperature limits
Lo.limit (Til)
or
Up.limit (Tih)
.
The entry window appears. The cursor flashes under the value. The
upper and lower temperature range is displayed.
3.
Change the value with the arrow keys.
By pressing the
[ESC]
key, you return to the higher-level
menu without making any changes.
4.
Press the Enter [OK] key.
The value is accepted.
5.7 Maximum pressure and pressure limit
The maximum pressure is a limit value which, when exceeded, causes the
device to switch to the fault state and stops all consumers, including the
pump.
Maximum pressure
The maximum pressure value must be lower than the bursting pres-
sure of the connected application.
If the set maximum pressure is reached during operation, the con-
stant temperature equipment switches off and signals the gage
pressurealarm.
1.
Press the [Enter key] on the constant temperature equipment to
open the menu.
2.
Select the
Pump
Max. pressure
menu items.
The Input window opens.
3.
Change the value with the arrow keys.
4.
Press [OK] to confirm the new value.
If the supply pressure reaches the set maximum pressure due
to malfunctions or unsuitable control parameters, the constant
temperature equipment switches off and signals the
gage ressure
alarm.
When the pressure limit is active, the device regulates the pressure automat-
ically to prevent it from exceeding the set value. The maximum pressure
must also be set because in most applications, there is always the possibility
that the pressure will exceed the limit value.
Setting Tih and Til
Fig. 35: Define temperature limits
Maximum pressure
Setting the maximum pressure
Fig. 36: Pump menu
Pressure limitation
V4
Integral process thermostats with flow control unit
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