Sonics VCX134PB - Manual (Page 13)

NOTE
The probe is tuned to vibrate at a specific frequency. If the resonant frequency of
the probe has changed, due to cavitation erosion or fracturing, a minimum reading
will not be obtained. If an overload condition exits, or if minimum reading cannot
be obtained (less than 20%) with the probe out of the sample, check the
instrument without the probe to determine which component might be defective.
If minimum reading is obtained using the converter without the probe, the probe
is defective and should be replaced with a new one.
A loose probe will usually generate a loud piercing sound.
Refer to Section III if an overload condition exists.
Immerse the microtip half way into the sample. If the probe is immersed to an insufficient
depth, air will be injected into the sample, causing the sample to foam.
Since the amplitude required is application dependent and subject to the volume and
composition of the sample, it is recommended that the amplitude be selected empirically,
by increasing or decreasing the level of intensity as required as the sample is being
processed.
MANUAL PULSER:
By inhibiting heat build-up in the sample, the pulse
function enables safe treatment of temperature sensitive samples at high intensity.
In addition, pulsing enhances processing by allowing the material to settle back
under the probe after each burst.
REVIEW:
The REVIEW function provides a “window” on the process by displaying
various operating parameters without process interruption. Pressing the
ENTER/REVIEW key repeatedly during processing will consecutively display the
following information.
a) Selected amplitude:
e.g. Amplitude 40%
b) Amount of power in watts, and accumulated amount of energy in JOULES
delivered to the probe:
NOTE
The amount of energy displayed will be only for one cycle. Initiating a new cycle
will reset the display to zero.
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