Audible Signals and Audio Volume control.
Your new STA System is equipped with a number of audible indicators that
monitor speed of anesthetic delivery, and status of how much anesthetic has
been delivered. While using the STA feature, it provides an audible feedback to
identify the correct position of the needle within the periodontal ligament tissues
to successfully perform a STA-Intraligamentary injection.
The device has a system-wide VOLUME control, whereby the audio volume may
be controlled. Press to either increase or decrease the overall audio volume of
the device. This change will be retained for future use. The audible sounds
cannot be fully turned off.
Cartridge Volume Gauge and Audible Cartridge Tone Indicator
The STA drive unit monitors the amount of anesthetic used by visual and audible
indicators. The front panel of the drive unit has LED indicators which light up
showing the amount of anesthetic solution remaining. The unit will also “bong”
once when ¼ cartridge is expressed, twice when half is expressed and three
times when ¾ is used. Empty is indicated by a double “chirping” sound.
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