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1. Press when is displayed, if you do not
wish to perform an accuracy check. If you do
not have a Precision Syringe press .
2. Select if you wish to perform an accuracy check on the Vitalograph
micro at this time. (Press to change the Thumbs Up/Down symbol)
3. Press
4. The display will look like…
5. This represents the stroke volume of your 3-L Precision Syringe,
not the total volume that will be delivered. It is very important to
adjust this if you are using a syringe with a different stroke volume;
otherwise, the accuracy check will be incorrect.
Press . The display will look like …
6. Ensure the syringe piston is fully withdrawn. At this point, connect the
unit to the syringe and leave it in a stable position - do not move the
unit during this procedure.
7. With an even stroke, pump the air from the syringe through the device. The
stroke must be at least one second in duration.
8. Wait for a double beep, then withdraw the syringe piston fully and repeat this
procedure of injecting the full syringe volume until five beeps sound. It is very
important to wait for the double beep before withdrawing the piston each
time.
If there is a Thumbs Up on the LCD, then the
unit is within the +/- 3% accuracy tolerance1.
9. Turn the unit off by pressing . The device will automatically switch
of after 2 minutes.
1The user will be prompted (by means of a double beep) for another stroke of the syringe when the volume
difference of the present stroke is not within 3% of the previous stroke. If the maximum of five strokes is
executed, then the five beeps will occur, signifying the end of the accuracy check. If there is a thumbs down icon
on the LCD, the unit is outside the 3% accuracy tolerance. Check for faulty assembly of the flowhead and your
accuracy check procedure. Recheck the accuracy. If still outside tolerance seek technical assistance.
