JULABO MB-5M Heating Circulators with Open Bath - Manual (Page 30)

Safety installations, warning functions
30
8.3. Over and Sub temperature warning function
Over temperature
t High 205 °C
Sub temperature
t Low -55 °C
If the observance of a working temperature value >t 3< has to be
supervised for a sensitive temperature application, then set over
and sub temperature warning values. In the example below the
setpoint >t 3< 85 °C is surrounded by the values >t High< 87 °C
and >t Low< 83 °C. The electronics immediately register if the
actual temperature breaches one of the set limit values. The
resulting reaction is defined in the menu item >Aty (ALARM-
TYPE)< refer to (page 29).
Factory settings:
t High 205 °C
t Low -99.99 °C
1. Press the key .
2. By pressing the or key select the menu > tHigh <
or > tLow <.
3. Press the key. The integer digits flash.
4. Change the values to 87. °C and/or 83. °C by pressing the
and key and confirm with the key.
The decimal digits flash and can be adjusted if desired.
Confirm once more by pressing the
key.
See above examples.

The warning functions are only activated if the actual bath
temperature remains within the set limit values for 3 seconds
after switch-on.
Recommendation:
Set the over temperature warning value > t High < 5 °C to 10 °C
above the working temperature setpoint.
Set the sub temperature warning value > t Low < 5 °C to 10 °C
below the working temperature setpoint.