6.3 Indications in the display
The basic display is the indication in the display which is shown unless
other operations such as configuring settings are performed. The actual
temperature of the device in °C is shown in the basic display.
The Enter key can be used to call the menu of the device with possible
settings.
You will find more information on the structure of the menu and
how to navigate in the menu in
Chapter 6.2 “Basic display and
The display flashes if a menu item has been selected in the display. The
setting can now be made. The entered value is accepted by confirming the
setting.
6.4 Setting the temperature set point
You set a temperature set point for the temperature control. This value
specifies the temperature to which the heat transfer liquid is cooled. The
upper and lower temperature limits of the device have default values of
45.0 °C and 5.0 °C respectively. The temperature limits define the tem-
perature range of your application, i.e. the temperature range in which
temperature control can take place. A warning is issued by the device outside
the temperature limits. This range ensures that no unnecessary warnings are
issued during transient processes of the temperature control. The defaults
can be subsequently restricted depending on the heat transfer liquid.
Do not set the temperature set point lower than 5 °C when operating
the device with Aqua 90. Also use the lower temperature limit value
Lo
“Lower temperature limit value” on page 34 and set it to 3 °C so that a
warning is output at lower temperatures.
The yellow LED on the device is lit at a temperature set point or an actual
temperature of less than 5 °C. It warns of incorrect use of the heat transfer
liquid and the resulting damage to the device.
If the device is operated at liquid temperatures below 5 °C, Kryo 30
(glycol/water) must be used as the heat transfer liquid for the device
Personnel:
n
Operating personnel
1.
Select the menu item for specifying the temperature set point.
2.
Specify the set point value.
The value cannot be accepted if the set point entered is
outside the set temperature limits. The editing mode is active.
An acoustic signal is also emitted. You can enter the set point
again.
Basic display
Fig. 12: Basic display
Menu
Editing display
Relationship between the temperature set
point and the temperature limits
Fig. 13: Set point entry
V07
Microcool
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