Huber MPC Minichiller 280, Manual

Page: 41 / 60

Setup mode
Chapter 4 OPERATION MANUAL
V2.4.0en/09.08.21//1.30
Minichiller®
41
4.2.1.2 Filling and venting with >Level indicator and drain< [38]
PROCEDURE

Verify that the hose of the >Level indicator and drain< [38] has not been pulled out.

Manually open the >Filling port< [17].

Carefully pour suitable thermal fluid, using the filling accessories (funnel and/or beaker) into the
>Filling port< [17]. The thermal fluid flows into the temperature control unit and through the
hose connections to the external application. Fill the temperature control unit up to 1 cm below
the hose end of the >Level indicator and drain< [38]. Follow the instructions for the proper dis-
posal when cleaning filling accessories. → Page 15, section »Proper disposal of resources and
consumables« .

Switch on the temperature control unit.

Set the setpoint to 20 °C. → Page 36, section »Set/change setpoint« .

Start the circulation by pressing the >Start/Stop button< [E].

Refill thermal fluid as needed. Observe the fill level in the >Level indicator and drain< [38]. The
fill level may never fall below the minimum marking. The filling/venting process is complete
when the temperature control unit is filled sufficiently.
If, with externally closed applications (reactors), the fluid level in the fill level display remains the
same when the pump is running and when the pump has stopped, the application has been vent-
ed.

Stop the circulation by pressing the >Start/Stop button< [E].

Manually close the >Filling port< [17].
The temperature control unit is now filled.
Venting must be performed especially during commissioning and after a change of thermal fluid.
This is the only way to ensure trouble-free operation.
Note that the volume expansion of the thermal fluid depends on the working temperature range
you wish to work in. At the “lowest” working temperature, do not go beyond the minimum mark
of the >Level indicator and drain< [38] and at the “highest” working temperature there should be
no overflow at the >Level indicator and drain< [38]. Fill the temperature control unit up to about 1
cm below the hose end. In case of overfilling, drain the excess amount of thermal fluid. → Page 43,
section »Draining with >Level indicator and drain< [38]« . Check if the thermal fluid can be reused.
Follow the instructions for the proper disposal. → Page 15, section »Proper disposal of resources
and consumables« .
>Level indicator and
drain<
[38]