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9.4
Test the low liquid level safety function
This section describes how you can test that the low liquid level safety function
is operational.
The device is switched on.
1. Remove the bath lid.
2. Using a long object, e.g. a straightedge, carefully push the thermostat float
downwards until it reaches its mechanical stop.
A beep sounds and the "Tempering fluid level too low" alarm message is
displayed. The low liquid level safety function works.
3. Switch the device off, wait a few seconds, then switch the device on again.
The alarm message is deactivated.
4. Close the bath opening.
The low liquid level safety function has been tested for functionality.
9.5
Emptying
The device must be completely drained if it is to be sent in for technical service
or is to be properly disposed of.
In general, the device should be completely emptied before longer shutdowns or
when there is a change to the external application.
CAUTION
Risk of burns from hot bath fluid!
Bath fluid can become very hot during a temperature control process.
Contact with hot bath fluid can cause scalding.
•
Before draining the device, let it cool to room temperature
•
Avoid direct contact with hot bath fluid
•
Wear protective gloves
The device is tempered to room temperature and switched off.
1. Place an adequately large collection vessel under the drainage valve.
2. Take off the bath lid.
3. Open the drain valve.
The bath fluid drains out of the bath tank into the collection vessel
provided.
4. Once the bath tank is completely drained, close the bath opening.
5. Close the drain valve.
The device is emptied. If an external system is connected, it can now be
disconnected from the device and also drained.
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