BANDELIN Sonorex Super RK 31, User Instructions

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1556g GB/2019-02

1

 electronic GmbH & Co. KG  •  Heinrichstraße 3-4  •  12207 Berlin  •  Deutschland  •  info@bandelin.com

6 

Maintenance and repair  

6.1 Maintenance 

SONOREX ultrasonic baths require no maintenance.
For purposes of regular control, the following functional checks may be carried out.

6.2  

Functional checks  

Checking control lights

•  Pursuant to chapters 3.1.1 and 3.1.2.

Checking the ultrasound and/or heating

Function can be checked using a standard wattmeter. It is to be inserted between the ultrasonic 
bath's power plug and the power outlet. 
•  Fill the oscillating tank with 

fl

 uid, see chapter 4.2.

•  For testing purposes, only the ultrasound or only the heating system are to be plugged in. 

Next, the value displayed is to be compared with the corresponding value in the technical data 
(chapter 1.4) (tolerances ± 20 %). 

Checking the ultrasound effect

•  For this check, it is recommended that a foil test be conducted.

A suitable frame for a foil test can be requested from the manufacturer. Customary aluminium 
foil is used to conduct the test. Next, a comparison is made with previously-generated foils. 
For more detailed information, please see the appendix. 

•  A measurement procedure is described in DIN SPEC 40170:2013-11 (Measurement and 

judgement of the cavitation noise). 

6.3 

Error analysis  

SONOREX ultrasonic baths are robustly constructed and designed for a high level of reliability. 
Nevertheless, the possibility of a malfunction due to a defective component can never be fully 
discounted. 
The following overview of possible sources of error should serve as an aid for error detection and 
elimination.



Ultrasonic bath oscillates weakly, unevenly, or noise is too loud:
-  Has 

fl

 uid been properly degassed?

-  Is it overloaded with objects to be treated?
-  Uneven noises (wobbling) 





Sonicate for 15 min.
Remove a few parts.
No error - slightly adjust the 

fi

 lling 

level of the 

fl

 uid.



Heating system defective?
The ultrasonic bath can be readily operated 
without heating.



Emergence of light erosion on the bottom of the 
tank?



Natural wear.
Ultrasonic bath OK.

Any malfunctions are to be communicated in writing to the manufacturer.