Julabo TE400 Bedienungsanleitung Seite 111

15.3 Preparing the Unit for Maintenance
All necessary safety measures must be taken to prevent accidents when carrying
out the maintenance. The following preparations must be made:
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15.4 Verification of Safe State after Maintenance
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15.5 Draining Procedure
Requirements
 Unit prepared for maintenance. Refer to Preparing the Unit for Maintenance..
 Coolant hoses disconnected from the unit. Refer to Disconnect Hoses.
 Coolant cooled down to the ambient temperature.
Terminate the cooling operation.
Let the unit and its coolant cool down to the ambient temperature.
Switch off the unit.
Disconnect the unit from mains by pulling the mains plug.
Secure the unit against being switched on again.
Verify that the unit is de-energized.
Keep unauthorized persons away from the working area.
Place the unit on a level surface
Ensure that all screws are securely fastened
Make sure that there are no loose electrical connections.
Ensure that the controller completes the diagnostic.
NOTE
Risk of Damage to the pump
When the coolant level in the coolant tank is too low and if it runs the pump
dry, the pump can be damaged or destroyed.
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Avoid running the pump dry to prevent damage
System Maintenance and Service
111