analysette 22 „ECONOMY“ Page 2
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Caution!
Laser radiation
Wear protective goggles!
Do not extinguish fires with water!
1.3 Brief description of the machine
The "analysette 22 ECONOMY" laser particle sizer is used
for determining the particle size distribution in suspensions
and emulsions and is suitable for a wide range of applica-
tions. It is used primarily in research and development as
well as in quality and process control.
The "analysette 22 ECONOMY" is based on the FRITSCH
patent for converging laser beam technology in the deter-
mination of particle size distribution.
1.3.1 Design and function
Design
The measuring unit consists of a NeNe laser (wavelength
632.8 nm, laser output power 4 mW, laser class IIIb). There
are several warning signs regarding the laser light at the
inside of the unit.
The optical and electronic assemblies are secured to a
based plate made in aluminium.
The multi-element detector consisting of 31 individual com-
ponents and the associated preamplifier are mounted in a
separate housing to the right of the measuring unit. The
measuring unit contains the drive system for the measuring
cell, which can be moved between two end positions.
The dispersing unit is equipped with a stainless steel ves-
sel with a capacity of approx. 300 ml, which is formed as an
ultrasonic bath. The ultrasound output is approx. 140 W
and can be switched on or off by the operator. An optical
filling level sensor monitors the liquid level in the ultrasonic
bath. The bath is equipped with an agitator that can be
used for further dispersion and homogenisation. The sped
of the agitator can be regulated.
