BANDELIN Sonorex Digitec DT 510 F, User Instructions

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4.1 Fill oscillating tank
If inset beakers are used in the ultrasonic bath, a contact fl uid must always be used as otherwise
the ultrasound cannot pass through the air (between the ultrasonic oscillating tank and the inset
beaker). This contact
fl uid must be able to transfer the ultrasound to the fl uid in the inset beaker
without loss if possible. The surface tension is very high in municipal and deionised water. As a
result of this high surface tension, the cavitation does not occur throughout the entire solution.
It generally only forms on the bottom of the oscillating tank or on inhomogeneities in the water.
To reduce the surface tension, you should add a surfactant preparation which is biodegradable,
easily disposable, gentle to the material and long-lasting. We recommend TICKOPUR TR 3, which
is easily available from specialist laboratory supply dealers. Even when used for a long period
of time, this preparation does not leave any scrum or incrustations,does not turn cloudy and on
average functions for 5-7 days before needing to be changed.
The ultrasonic bath is turned off for fi lling.
 Check that the ball valve is closed.
 Fill 1/3 of oscillating tank with water.
 Add the surfactant preparation in the correct dosage, e.g., 1%
TICKOPUR TR 3.
Dosage Filling
quantity
TICKOPUR TR 3
1%
Water + Concentrate
DT 510 F 2.5 litres 2.48 l + 25 ml
DT 1028 F 5.8 litres 5.74 l + 58 ml
 Fill carefully up to the fi lling level mark, avoid as much as possible the
formation of foam. The oscillating tank must be fi lled depending on the
sample vessels used, as they displace the contact fl uid.
IMPORTANT:
With the sample vessels inserted, the fi lling level should be at or slightly above the fi lling level
mark, as a too low fi lling level damages the ultrasonic bath!
Instructions – fi lling
• Do not fi ll oscillating tank with hot water. Maximum fi lling temperature: 50°C.
• At least drinking-quality water must be used to fi ll the oscillating tank.
• Only use distilled or deionised water without additives in inset beakers or insert tubs.
• Do not use any combustible, explosive, non-aqueous liquids or azeotropic mixtures directly in
the stainless steel oscillating tank (e.g. benzine, solvents). Furthermore, chemicals that contain
or that separate chloride ions (some disinfectants, household cleaners, and dish detergents),
may not be used directly in the stainless steel tank.
• When working with aggressive preparations in inset beakers or insert tubs: Prevent the contact
fl uid or stainless steel surfaces from being sprayed. If necessary, replace the contact fl uid, clean
the surfaces and wipe dry.