Test Procedure and Results 4-3
4.3 Adding a Sample to the Rotor
1. Remove the “practice” rotor from the start-up pack and practice loading a sample, using a
preferred transfer device after reading the instructions in this section.
CAUTION: The practice rotor is for sample loading practice only. DO NOT RUN THIS
ROTOR IN THE VS2 — IT WILL CANCEL THE ANALYSIS.
a. Fixed 100 PL Volume Pipette
1. Firmly attach a new tip to the end of the pipette. Do not touch the tip (may
cause false elevation of amylase).
2. With the index finger or thumb, push the pipette button to the stop position
and hold it down for sample pickup.
3. Immerse the tip 2–3 mm below the surface of the sam-
ple as shown.
4. Release the button SLOWLY to pick up the sample.
Pause, then remove the pipette from the sample tube.
5. Check that there are no air bubbles or air gaps in the
pipette tip. Place pipette tip into the sample port of
the rotor. The tip should touch the sample port as
shown.
Refer to “Sample Delivery Volume” below for
appropriate sample delivery volume.
6. Gently depress the button on the pipette to allow the sample to SLOWLY
fill the sample chamber. Keep the pipette button depressed until you
remove it from the sample port.
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