Operating Procedure; Reading Principle - Greiner Bio-One Sed Rate Timer 10/II User Manual

5. OPERATING PROCEDURE

5.1 Reading principle

Ten infrared barriers cover vertically the ten test tubes with a cycle of about 60". The whole
test tubes, every 0.2 mm gap are analyzed. As soon as the reading plate, including 10 pairs
of I.R. TX / RX, begins to rise, the software recognizes any positions occupied by samples
containing the right level of blood.
At the first rising (when the instrument has ensured that the meniscus is clearly distinct) the
level of the sample collection just inserted is checked and the analysis begins.
The computer records the "zero" time for each sample and all the following readings, until 30
minutes have elapsed. During this phase the instrument also recognizes if the sample is
being proper kept in its channel.
SRT 10/II USER MANUAL page 16 of 37