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To remind the user to pay great attention to answering correctly and verify his/her
selection, and to remind the user that the only way to switch cartridge type is to turn
the power off and on to the machine with the mains switch and then choosing the
correct cartridge type, the following warning is flashed after cartridge type selection:
Always answer turn off before
correctly and... cartridge swap!
5. Countdown timer for the timer wizard
This is a very useful feature. The device allows you to specify the area in inch² or cm² of
a skin patch by specifying width and length, and it then calculates, using 250
pricks/cm² (the same as 1500 pricks/in²), how long you should needle that patch in
order to achieve that prick density. The device will stop when the timer has reached
zero. All the user has to do is move the device with circular motions equally over the
entire patch at least once during that time period.
6. Needling depth indicator
The bottom triangle indicates the set depth in increments of 0.25 mm. The deepest
needling setting, 2.5 mm, shares its position with depth setting 2.25 mm.
The top triangle shows the actual needling depth, or, more accurately phrased, how far
the needles are penetrating past the cartridge rim. This indicator serves as a
verification that the device is working properly and that the correct needle depth is
indeed attained. It also reminds the user to maintain proper skin contact, because when
you keep lifting the device up and down from the skin, the depth indicator will flutter
around too much. With proper needling technique, the actual-depth indicator remains
in close proximity to the set-depth indicator, helping to attain a smooth, uniform
needling depth, something harder to attain with manual instruments.
