JULABO LH 85 High Dynamic Temperature System - Manual (Page 75)

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12. Cleaning the unit
Caution:
Always turn off the unit and disconnect the mains cable from the power source
before cleaning the unit.
Prevent humidity from entering into the circulator.
Electrical connections and any other work must be performed by qualified
personnel only.
Cleaning the unit outside
 Clean the outside of the unit using a wet cloth and low surface
tension water (e.g., soap suds).
Before applying a cleaning or decontamination method different from the
one recommended by JULABO, the user has to make sure with the
manufacturer, that the planned method does not damage the unit.
Cleaning the inside:
If you change the bath liquid or want to use a different one, carefully
clean the parts in contact with the bath liquid. The heat exchanger,
internal reservoir, connecting tubing and external system should be
rinsed several times using cleaning liquid.
S 20.00
ID 0
Caution:
 Choose the detergent according to the bath liquid which is used.
E.g. Ethanol, Silicon remover can be used.
 Take care the room where cleaning takes place is well ventilated.
 Set the working temperature setpoint.
Recommendation: 20 °C
Preparations:
1. Drain the temperature system.
See chapter 5.9. Draining
2. If only the Presto temperature system
is to be cleaned, connect the pump
connectors (13, 14) using a tubing.
3. Connect a tubing to the connector (16)
"Reservoir extern". First hold the end of
the tubing towards position 16.1, to
prevent the cleaning liquid from flowing
down instantly.
4. Hold the tubing from the overflow
connector (15) into a suitable vessel.