Lauda Alpha A, Руководство по эксплуатации

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Alpha
June 20, 2018/ YACE0092
Starting up
29
7.7 Defining temperature limits
Hi
and
Lo
With this function, it is possible to define a minimum and a maximum temperature in which the thermo-
stat controls. By reaching the temperature limits, a warning appears. In this way setpoint input can be
prevented which may damage the heat transfer medium or the apparatus. For example, if water is used
as the heat transfer liquid, 95 °C would be practicable as the maximum temperature and 5 °C as the
minimum temperature. The default values are Hi = 105 °C and Low = -30 °C.
2x for
Hi
3x for
Lo

Select option
Hi
(maximum temperature),
or option
Lo
(minimum temperature) using the key

Enter the selection
The maximum temperature can be set from 35 °C to 105 °C.
The minimum temperature can be set from -30 °C to 30 °C.
The current temperature limit value is displayed flashing.
or

Set the required temperature limit.
Wait 4 seconds or

Display flashes 4 seconds

new value is automatically accepted,
or

By pressing the <Enter> key the value is accepted immediately.
7.8 Refrigeration unit submenu
CooL
Menu
Cool
only with cooling thermostats.
4x to
CooL
and 1x

Call the option
CooL
.
or

Configure the refrigeration system with these possible settings:
Auto
automatic refrigeration mode;
on
refrigeration on duty;
oFF
refrigeration out of duty.

The selected mode is displayed flashing.
Wait 4 seconds or

Display flashes 4 s

new selection is automatically accepted,
or

it is immediately accepted with the <Enter> key.
H i
L o