A powerful centrifugal pump with individually adjustable speed ensures stable measuring in the dispersion unit of the ANALYSETTE 22 NeXT. It also transports heavy particles and facilitates a fast and uniform distribution of the sample material in the entire circulation system. Standard programs for simple operation, freely programmable dispersion process, an especially fast and efficient automatic cleaning and many other advantages also simplify your work. And ensure the quality of your measuring results.
|Type of wet dispersion||Closed liquid circulation system|
|Suspension volume||150 – 500 ml, variable|
|Radial pump||With adjustable speed 3.5 l/min|
|Materials used in the sample circulation system||High-quality stainless steel 316L, PTFE, BK7 glass, Viton®, hoses made of LEZ SIL®|
|Conversion kit Extended for extreme chemical resistance (optional)||Seals and a flow plate made of FFKM Kalrez®, hoses made of LEZ SAN®|
|Sample material characteristics||Suspensions, emulsions and solids that do not agglomerate, are not soluble in the dispersion liquids or are poorly free-flowing or are sticky|
|Sample quantity||Some 10 mg (μm range) to a few grams (mm range) depending on the sample material and particle size|
|Net weight||13 kg|
|Dimensions (w x d x h)||29 x 27.2 x 29 cm|
Measurement of temperature and pH value
The stability of the suspension is extremely important for the successful dispersion. Therefore you can measure and log the temperature with the dispersion system of the ANALYSETTE 22 NeXT. For additional measurement and logging of the pH value of the liquid, connect a suitable pH meter via USB interface to the ANALYSETTE 22 NeXT and attach a sensor onto the dispersion unit.
Separate ultrasonic box
If you measure sample material frequently that tends to agglomerate, you can equip your ANALYSETTE 22 NeXT additionally with a powerful ultrasonic box which is simply inserted into the sample circulation system. It allows for an even finer adjustment of the wet dispersion to the respective sample material and operates extremely quietly with less than 45 dB.
With its cleverly reduced design and solid, robust engineering, we have designed the dispersion unit of the ANALYSETTE 22 NeXT for an especially long service life and practically maintenance-free. Doing completely without valves and moveable seals in the sample circulation system ensures for example that no dead spaces occur and no sample material can accumulate and settle. And the fill level measurement is done without contact using an ultrasonic sensor. Without soiling. Without wear.
Illuminated dispersion bath
Ergonomically positioned, the illuminated dispersion bath makes it incredibly easy to feed the sample material and to observe the dispersion process.
Continuously variably placeable return pipe
The sample material flowing back from the measuring cell is fed into the dispersion bath not at one specified, unchangeable position, but rather through a variably positionable return pipe. With that you can create depending on the sample, a finely adjustable and accurately reproducible swirl effect that keeps the suspension constantly in motion.
Work particularly easily with the FRITSCH wet dispersion unit
The efficient, valveless rinsing of the FRITSCH wet dispersion unit utilises the powerful pressure of the pump and thus achieves a fast and thorough cleaning of the dispersion system. A single rinse is sufficient and you can go on directly to the next sample.
Easily removable hood
The hood of the FRITSCH wet dispersion unit can be removed quite easily. This makes the complete dispersion bath much more accessible for cleaning than comparable instruments.
Dispersion bath without dead space
Available only from FRITSCH: The first fully automatic wet dispersion unit that does not need a clamping or rotation valve for emptying the system. That makes it significantly more robust and virtually wear-free. And there are neither difficult to clean dead spaces in which soiling can get deposited permanently nor seals that can become leaky just by single particles.
Easy visible hoses
The hoses made of silicone with especially smooth interior surfaces are hardly susceptible to deposits and make soiling or blockages directly visible. Due to practical cap nuts they can be easily removed and reattached manually without tools for cleaning.
Suitable for many liquids!
All parts in the sample circulation system, which come into contact with the dispersion medium are made of high-quality stainless steel 316L, PTFE, BK7 glass, Viton® or silicone and are suitable for use with benzene, alcohol and many organic solvents as suspension liquids.
Resistant against chemicals
If you are working with extremely aggressive chemical dispersion liquids, you can order the wet dispersion unit with the conversion kit Extended for extreme chemical resistance. The kit consists of seals and a flow plate made of FFKM Kalrez® – the hoses are made of LEZ SAN®. Ask us about it!
If you already have an instrument, you can order the conversion kit separately at any time to retrofit your equipment. A list providing an overview of chemicals can be downloaded at:
Speaking about water quality
Water is by far the dispersion liquid employed most frequently. Generally normal tap water is perfectly adequate. If, however, the degree of hardness of the water is too high for example or sufficient purity is not ensured, it may be necessary to use treated water. Just ask us – we will be happy to advise you.
In case you do not have a suitable media connection at the setup site of the instrument, you can also simply provide the liquid in a container and employ an additional, external pump for filling the dispersion unit. The control of this process is done through the electronics of the dispersion unit and is controlled as usual by the software.