JULABO SE-Z Heating Circulators - Manual (Page 41)

HE / SE
41
9.4.4. OFF-MODE
Factory setting:
PMP OFF
Usually the circulating pump is controlled with the key
or the
start/stop command. If the circulating pump is to work in the –OFF-
mode, the adjustment can be set in a sub-menu.

The pump motor will be shutdown in case of alarm anyhow.
9.4.5. ACTVAR - actuating variable
Factory setting:
CONTROL
The variable (ACTuating VARiable) corresponds to the extent to which
the heater or cooling unit of the circulator is controlled. Heat or cold is
applied to the bath according to this variable. If this happens with the
control electronics of the circulator, called > CONTROL < in this
particular case, the bath temperature is exactly heated and maintained
constant at the adjusted setpoint.

Programming of variables for the parameters > SERIAL < or >
EPROG < is only accepted, if the unit is in Start mode.
Possible parameters:
CONTROL – The internal control electronics of the circulator controls
the heater und the connected cooling unit. Self-tuning is possible.
SERIAL – The heater or the connected cooling unit receives the control
signal via the serial interface. Self-tuning is not possible.
EPROG - The heater or the connected cooling unit receives the control
signal via the E-Prog input. Self-tuning is not possible.
Important:
Under set the input variable >EPROG U/I< to
(refer to page 62).
Note:
The E-Prog input can only be used either under menu item
>SP EXT< (refer to page 40) or under menu item > ACTVAR <.
Warning:
The working temperature range of the circulator is determined during configuration. If
set to >CONTROL<, this range cannot be exceeded.
If set to > SERIAL < and > EPROG <, heat or cold is applied to the bath without
control. The permissible maximum temperature can be exceeded. The user has to take
adequate precautions for temperature control.
Materials, such as gaskets or insulations for example, may be damaged or destroyed, if
the permissible maximum temperature is exceeded.
The safety and warning functions > < of the instrument must always be used to
their fullest capacity.