Stat Fax 303 Plus, Руководство оператора

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Awareness Technology, Inc. Stat Fax 303 Plus Operator’s Manual Rev. J 1
1.0 INTRODUCTION
1.1 Applications
1.1.1 Intended Use
This microstrip reader is a laboratory instrument intended for in-vitro diagnostic use. It is a
compact, microprocessor-controlled, photometer system designed to read and calculate the
results of endpoint colorimetric assays, which are read in microtiter strips. This general purpose
instrument is intended to be used by trained laboratory professionals.
1.1.2 Summary of the Instrument
The instrument reads monochromatically or bichromatically, and has 3 models; a four filter model
(405, 450, 492, and 630 nm), a six-filter UV model (405,450,492,630,545, and 340nm), and a 6-
filter VIS model (405,450,492,630,600, and 545 nm). Substitute wavelengths in the range of 340
nm to 700 nm are also available on specially ordered models. It is designed to accept many
single column microstrips up to 12 wells in length, as well as break-apart wells, whether the wells
have flat- or round bottoms. An accessory carrier is available for use with dual column 2x8-well
strips and single-column 8 well strips. The user need only position the carrier to the desired row;
the instrument automatically positions the strips, reads absorbances, calculates concentrations,
and prints results. It comes with a built-in thermal graphics printer with the capability to plot
standard curves.
Besides providing absorbance readings, this instrument also offers pre-programmed modes for
performing the most commonly used calculations, multiple convenience features, and user
programmable memory to further facilitate testing.
Preprogrammed Modes
The reader is programmed with many keyboard-selectable general purpose programs. Each
mode is self-prompting, to reduce error and simplify operation. The general purpose programs
include absorbance, single point calibration, cutoff determination, multi-point linear and log-logit
regressions and point-to-point connections, multi-point % absorbance calculations, and an
uptake mode. Each mode is described in detail in section 2.2-Calculation Programs. These
calculation modes have been selected to facilitate the performance of enzyme immuno assays,
drug levels, and other similar tests.
Convenience Features
Multiple convenience features include automatic blanking options and the ability to indicate the
locations of positive and negative controls and to enter control acceptance criteria for automatic
comparisons, to select positive and negative interpretations based on concentration value, and
to edit out discrepant duplicates with automatic reread and recalculation. Instructions for each of
these modes and convenience features are provided in this manual.