JULABO SE-Z Heating Circulators - Manual (Page 56)

Menu functions
56
9.8.1. Limits for internal control
SETPOINT MAX / MIN – Maximum and minimum setpoint
Restriction of the adjustable temperature range.
The limitation of the operating temperature range effects the temperature
setting in the menu with the key .
Only setting of working temperatures which lie within the determined
limits is possible
Existing settings for SETPNT 1, -2, -3, as well as those for >OVERTMP<
and > SUBTMP < (refer to page 27), are automatically deferred into the
limit range.
Setting range: -94,90 °C ... +300,0 °C

SET MAX > SET MIN
Interchange of values is not possible.
Set maximum heating / cooling
The heating and cooling capacity of the unit are adjustable. 100 %
corresponds to the technical specification of the equipment.
Setting range:
HEAT MAX – 0 to 100 % in 1 % steps
COOLING MAX – 0 to 100 % in 1 % steps
9.8.2. Limits for external control
> SAFETMP <
INTERN MAX / MIN
Restriction for the temperature range of the internal bath.
Setting range: -94,9 °C ... +300,0 °C
The limits INT MAX and INT MIN are only active in external control. INT
MAX and INT MIN determine fixed limits for the temperature within the
internal bath. The temperature controller cannot exceed these limits even
if it would be necessary for achieving the temperature in an external
system. Therefore it is possible that the external setpoint cannot be
achieved.
Sense of limit setting:

Protects the bath fluid from overheating.

Prevents an undesired alarm shutdown by the excess temperature
protection - >ALARM CODE 14<.
Set the value of > INT MAX at least 5 °C below the value of
>SAFETMP<.

Protects the pump motor from high viscosity of the bath fluid at low
temperatures.

For refrigerated circulators. Freezing protection when using water as
bath fluid.