Hamilton Microlab STAR - 3 Urfhvv &Rqwuro

Microlab
®
STAR User Manual
Page 20 of 225 610766/02
The following table gives sample values and results for pre- and post-aliquot volumes
(please note that these are not technical specifications):
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7LS
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ZHW
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PDLQ
DOLT
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SUH
DOLT
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300 Std Water Yes 20 12 20 20 1.5 -2.6 A
300 Std Water Yes 50 4 50 20 2.0 -1.1 A
300 Std Serum Yes 20 12 40 40 2.0 B
300 Std Serum Yes 50 4 70 50 4.5 B
1000 Std Water Yes 10 12 20 >10 3.9 -3.8 A
1000 Std Water Yes 20 12 20 20 2.5 -3.2 A
1000 Std Water Yes 50 4 50 20 2.0 -1.5 A
1000 High Water No 20 12 20 20 5 -1.6 C
1000 High Water No 50 12 50 50 2.5 -1.2 C
1000 High Water No 100 8 50 100 1.5 -0.9 C
1000 High Water No 200 4 50 100 1.5 -1.5 C
1000 High Serum Yes 100 8 100 100 1.0 -1.1 D
7DEOHRI$OLTXRWV7LSW\SHVDUH6WG 6WDQGDUG9ROXPH7LSO+LJK +LJK9ROXPH7LS
O3UHZHW,I³<HV´SUHZHWWLQJE\IROGPL[LQJRQDVSLUDWLRQZLWKDVSLUDWLRQYROXPH
QHFHVVDU\9PDLQDOLT9ROXPHRIPDLQDOLTXRW9SUHDOLT9ROXPHRISUHDOLTXRW9SRVW
DOLT9ROXPHRISRVWDOLTXRW&93UHFLVLRQFRHIILFLHQWRIYDULDWLRQIRUGHILQLWLRQVHHVSHFV
57UXHQHVVIRUGHILQLWLRQVHHVSHFV7KH5DQG&9YDOXHVPHQWLRQHGKHUHDUHW\SLFDO
UHVXOWVIRUPHDVXUHPHQWV&ODVV/LTXLGFODVVWREHXVHG
$´6WDQGDUG9ROXPHB:DWHUB$OLTXRW-HW³%³6WDQGDUG9ROXPHB6HUXPB$OLTXRW-HW³&
³+LJK9ROXPHB:DWHUB$OLTXRW-HW³'³+LJK9ROXPHB6HUXPB$OLTXRW-HW³7KHGLVSHQVHPRGH
IRUDOOFDVHVLV³-HW'LVSHQVH(PSW\7LS³
 3URFHVV&RQWURO
 0RQLWRUHG$LU'LVSODFHPHQW
The Microlab STAR is equipped with an aspiration monitoring feature. During the aspiration
process, the pressure within the pipetting channel is measured in real time. Analyzing the
shape of the p(t) curve, the system can distinguish the following situations:
- A correct aspiration takes place.
- Air is aspirated into the tip (because, for example, the cup has not been filled properly).
- A clot blocks the tip.
The aspiration monitoring can be switched on and off for each individual aspiration step of a
method using the appropriate commands (see section 2.4). For pressure-based clot
detection, a threshold can be given in arbritrary A/D (analog/digital) values (typically 100 A/D