Chapter 6: Operation
General Operation
6 - 2 100-413-016 Rev. C
6.1 General Operation
In general, starting conditions are as follows:
6.1.1 Timed Operation
Turn Timer Control clockwise to the desired processing time. Set Duty Cycle
Control to Constant and Output Control to 1.
With the tip of the horn immersed about 1/4 to 1/2 inch in the solution to be pro-
cessed, turn power switch to ON. To increase ultrasonic intensity turn Output
Control clockwise to the next highest number pausing at each setting in order to
evaluate results until the optimum setting is reached.
6.1.2 Continuous Operation
Turn Timer Control fully counterclockwise to the Hold position. Set Duty Cycle
Control to Constant and Power Switch to On. Adjust Output Control to the desired
required intensity.
6.1.3 Pulsed Operation
Use of the Duty Cycle Control enables the ultrasonic energy to be pulsed, one
pulse per second. The control settings from 10 to 90 changes the duration of the
pulse from 10% to 90% of each second respectively. Pulsing the ultrasonic energy
retards the rate of temperature increase in the solution that results from the ultra-
sonic activity.
To operate in the pulsed mode, set the Timer Control to Hold if the process is not
to be timed or a processing time of longer than 15 minutes is required. Set Duty
Cycle Control to the required pulse duration. The lower the number setting the
shorter the pulse, and the slower the resulting temperature rise of the solution.
Switch power On and adjust Output Control to the required intensity.
!
When using micro tips, do not advance the output control beyond 6, or
permanent damage to the micro tips can result. Do not allow micro tips
to touch anything other than the solution. The stress of touching any
container can cause fracture of the tip or container.
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