Grant xub 230V Serie Manual De Operación página 27

Technical information
The need to degas
In order to allow optimum ultrasonic activity, the gases present in ordinary tap water
need to be driven out of the cleaning solution.
The time needed to degas the liquid varies depending on the amount of gas present in
the liquid and the quantity of water in the tank. Grant recommends a degas period of at
least 10 minutes.
During the degas cycle, you will see bubbles of gas forming on the inside of the bath,
and slowly rising to the surface. Degassing is complete when you can no longer see
these bubbles.
Another indication that the liquid in the bath has degassed is an increase in the
appearance of 'cold boiling' at the liquid surface.
Once the liquid is degassed, the bath is immediately useable and will run the cleaning
cycle.
The effect of heat
Heating the liquid in the bath
will aid the cleaning process.
Normally a temperature of
between 30 to 60°C is
sufficient to accelerate the
process. You will see from
the graph that
cleaning will be obtained at
60°C.
If you are using your bath to
clean medical equipment, it
is recommended to limit the liquid temperature to 35°C. This will avoid "baking" proteins.
Ultrasonic activity itself will heat up the liquid at a rate of approximately 10-15°C per
hour if in continuous use. In order to heat the liquid in the tank at a faster rate, it is
recommended to run the ultrasonics as well as turn on the heating.
Cleaning time
The Grant digital ultrasonic bath is factory preset with a cleaning time of 15 minutes.
Some components may take longer or shorter to clean effectively depending on the
contaminants and the level of contamination.
xub Series
Operating Manual
optimum
Average power
60
40
20
0
Temp. (°C)
25
Av Power.
3 dB Point
EN
29666 V5