SRT 10/II
USER MANUAL
page 19 of 37
External agents
a) Dilution ratio
b) Bubbles
c) Strongly hemolytic samples
d) Sudden agitation
e) Temperature
f) Time after sample-taking
g) Direct sunlight
h) Foam
i) Lipemic samples
5.5 Sample mixing
When it is not possible to analyze the sample immediately after sample collecting, it must be
gently mixed by inverting for at least five minutes. The use of a rotating agitator (
VACUETTE
®
MultiMixer, Item Nr. 836577) is recommended. The suggested rpm-value for the mixer is 15-
20 RPM.
5.6 Sample positioning
After mixing, the sample must be promptly transferred to the analyzer. We suggest to place
the mixer near the SRT 10/II. It is also recommended following a numerical sequence while
channels loading. After inserting the tenth sample, wait for the results of first loaded samples,
remove the analyzed samples from their channels and put new test tubes in these channels
to continue the analysis. On the display the operator can also check the proper location of
the right channel in which to put the new test tube.
The sample positioning on the analytic plate are numbered from 1 to 10. Numbering is meant
progressively in groups of 10 samples, so when the analysis of the sample in channel
number one is completed, the new sample put in channel one, automatically becomes the
sample number 11, and so on with the other samples.
For sample identification (if printer is disconnected) the operator can use a form in which
write the patient name or code number before the tube is put into the analyzer.
5.7 Sample removal
During the reading, SRT 10/II shows on the display the operative state of the instrument and
the updated situation of current and already concluded analysis. Before the final result is
shown on the display, the operator is advised by two short acoustic signals.
When the analysis is finished, the result will be automatically shown on the display and
transmitted by the serial line to the printer (when connected and switched on). Data will
remain memorized on the display until the operator, having noted the values, removes the
corresponding test tube from the plate. After removing the test tube, the data on the display
disappear in about one minute and in the corresponding channel, the operator can put a new
sample.
