Freeze-dryer Beta 1-8 LSCbasic
Freeze-dryer Beta 2-8 LSCbasic
7 Malfunctions and error correction
Version 03/2018, Rev. 1.5 of 09/03/2020 • sb-dc
Translation of the original operating manual
→
7.1.2.2 Aeration valve, media drain valve
Risk of poisoning/infection caused by contaminated condensate
(defrosting water)
The condensate may contain harmful substances originating from the
product.
Contact with the condensate may cause severe damage to health.
• Wear suitable protective clothes, gloves, and respiratory protection
when performing any work on the drain system (especially when
cleaning the valves and replacing the seals)!
A malfunction of the aeration valve or the media drain valve may have
several causes. One potential source are contaminants such as product
residues within the valve.
• Switch the freeze-dryer off and disconnect the mains plug.
• Clean the valve (see chapter 8.1.3 - "Aeration valve, media drain
valve").
• Put the freeze-dryer into operation again.
If there is still a leakage, the freeze-dryer must be checked by qualified
specialist personnel (see chapter 7.3 - "Service contact").
→
7.1.2.3 Pressure control valve
A malfunction of the pressure control valve may have several causes.
The inspection of the valve must be carried out by qualified specialist
personnel (see chapter 7.3 - "Service contact").
→
7.1.2.4 Rubber valves
In order to identify a leaking rubber valve, the valves must be checked
individually:
• Remove the rubber valve and seal the connection at the drying
chamber with a rubber stopper.
• Check the tightness under vacuum until the leaking valve has been
localised.
• Clean the valve or replace it if necessary.
→
7.1.2.5 Vacuum sensor
Vacuum sensors have a limited service life and can be ordered as spare
parts.
Capacitive vacuum sensors
Capacitive vacuum sensors may experience a measurement drift due to
long-term use, soiling or sudden aeration. In this case, the vacuum sensor
must be adjusted (see chapter 8.1.9 - " Vacuum sensor ").
To Next Page
Loading...
