Soundhead Temperature Too Cold; No Soundhead; Other Error Messages In The Display - Dynatronics Dynatron 850 Plus Service Manual

level. If your whirlpool temperature is hot enough to cause the treatment to stop, you may
need to adjust the temperature of the whirlpool.

Soundhead Temperature Too Cold

If the soundhead has been sitting in a very cold room or vehicle, it could be too cold to
operate when you turn the device on. The keypad may not respond to key presses and you
will be unable to use the device until the soundhead is sufficiently warmed. You must raise
the temperature of the soundhead to about 60 degrees F. in order for the machine to recognize
that the soundhead is present and to proceed with setting up a treatment. You can accomplish
this with any of the following methods:
1. Press the flat face of the soundhead against the palm of your hand for 30 to 60 seconds to
warm it slightly. This usually provides adequate warmth to the crystal to raise the
temperature to the minimum acceptable level. Once the crystal reaches this level, you
can proceed with treatment.
2. You can also place the soundhead in room temperature water to warm the crystal.
However, do not place the soundhead in very hot water when the crystal is this cold as it
could damage the crystal.
"HEAD" ERROR - No Soundhead
TIME
"HEAD" Error. This error message indicates the
soundhead is not plugged in or for some reason is
not being detected by the device.

Other Error Messages in the Display

Certain conditions can cause an error in operation. When this occurs, the machine will not
allow a treatment to be set up or delivered and will display an error message in the LED
displays. An error message can consist of any combination of alpha-numeric characters
which are not normally expected at any given point in treatment setup or delivery. Some
errors are easily resolved by the following methods.
• Press STOP to stop the treatment (if any), and turn the machine off then on again.
• Check to be sure the soundhead has not become disconnected from the machine. The
soundhead should be firmly plugged into its port. Only Dynatronics soundheads may be
used with this device. If the soundhead has been dropped, it may be damaged. If the
device operates normally with one soundhead, but not with another, the problem may be
a damaged soundhead and you must contact Dynatronics Customer Service.
• Make sure the soundhead is not too hot. For hot soundheads, follow the instructions
provided earlier in this section.
Ultrasound Technical Information
Dynatron 850plus & 550plus
®

No Soundhead

For devices having software greater than Rev. 1.01:
START
If the device cannot detect a soundhead during setup or
STOP
delivery of an ultrasound treatment, the error message
PAUSE
"HEAD" is displayed in the Time display. If this error
FUNCTION
occurs, check to be sure the soundhead is firmly plugged
into its connector. If you are unable to clear the message
by reconnecting the soundhead, contact Dynatronics'
customer service department at 1-800-874-6251 for
assistance.
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