Dynatronics Dynatron 550 Plus, Service Manual

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Dynatron
®
850plus & 550plus
Ultrasound Technical Information
105
NOTE: THE ABOVE NUMBERS ARE PROVIDED FOR ILLUSTRATION ONLY AND SHOULD NOT
BE ENTERED INTO YOUR DYNATRON DEVICE. USE ONLY THE ACTUAL NUMBERS PROVIDED
WITH YOUR OWN SOUNDHEAD.
2. Plug in Soundhead. Turn the Dynatron 850plus off, then plug in the new soundhead.
3. Enter Head Parameters Mode. To enter the Head Parameters Mode, press and hold the
Duty Cycle toggle key (10%, 20%, 50%, Cont key) while turning the machine ON.
Continue holding down the Duty Cycle toggle key until the device finishes its startup
sequence.
The unit senses and displays the head size in the Power-Intensity display. For example, if “5”
is displayed, it means the device senses a 5 cm
2
head is plugged in.
4. Enter 1 MHz Values. You will begin by entering the 1 MHz values from the Head
Calibration Printout. Make sure that the 1 MHz LED is lighted before entering these
values.
Locate the 1 MHz column on the printout. You will enter the values shown for F1, Z,
and TEMP. Enter those numbers as follows:
a. Select CONT Duty Cycle: The CONT and 1 MHz LEDs are lighted. Enter the
value for F1 – 1 MHz by pressing the time selection keys until the desired value
is displayed in the Time display.
Use the Time Selection (up/down) keys to enter the desired number. The value
you enter is displayed in the TIME display. Press and hold the up or down key to
move more quickly to the desired number, or press and release the key to step up
or down one digit at a time.
b. Select 50% Duty Cycle: With the 50% LED lighted, enter the value for
Z – 1 MHz.
c. Select 20% Duty Cycle: With the 20% LED lighted, enter the value for
Temp – 1 MHz.
d. Select 10% Duty Cycle: With the 10% LED lighted, enter “0” (zero) as the value
for Coupling. The coupling detection feature is not available with old-style
soundheads.
5. Enter 2 MHz Values. Press the FREQ key to select 2 MHz. Make sure the 2 MHz LED
is lighted. Locate the 2 MHz column on the printout, and enter those numbers as follows:
a. Select CONT Duty Cycle: The CONT and 3 MHz LEDs are lighted. Enter the
value for F1 – 2 MHz by pressing the time selection keys until the desired value
is displayed in the Time display.
b. Select 50% Duty Cycle: With the 50% LED lighted, enter the value for
Z – 2 MHz.
c. Select 20% Duty Cycle: With the 20% LED lighted, enter the value for
Temp – 2 MHz.