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1 - Introduction
An instrument is capable of monitoring a total of 50 BACTEC® culture vials.The
practical capacity is 5 culture sets per day with a 5-day test protocol.The vials are
arranged in 3 concentric rings designated A, B, and C.The vials are continuously
incubated at 35° C, and are agitated for maximum recovery of organisms.
Major features of the BACTEC® 9050 instrument include:
♦
Automated, continuous, unattended testing of cultures through non-
invasive fluorescent technology
♦
M i n i m u m user interaction and handling
♦
Immediate notification of positives through an indicator lamp, indica-
tion on the LCD display, and an audible alarm
♦
S i m p l e user interface, with picture icons to guide you through setup
and routine operations
♦
Incubation and agitation for all cultures
♦
P r o v e n BACTEC® culture media
1.2 Instrument
Overview
*Ik
The BACTEC® 9050 instrument (hardware) components are described in the
following paragraphs and are shown in Figure 2. Controls and indicators for these
modules are discussed in Section 3 - Controls and Indicators.
The major subsystems of the instrument include the following:
Rotor
The rotor contains 50 wells called "vial stations," into which vials are placed for
incubation and testing.The rotor contains three rings of vial stations designated
A, B, and C. Each station is numbered uniquely (I - 50), but the system provides
the ring letter designation (A, B, or C) to help you quickly identify where to place
or remove vials. One row of stations (one station in each ring) contains the test
LEDs that activate vial sensors and the photo detectors which take the actual
readings.
The rotor is mounted at a 20° angle and rotates to provide agitation to culture
vials.Agitation of cultures can improve both time to detection and recovery of
organisms. The rotor's drive motor stops agitation when the cabinet door is
opened.
The temperature inside the instrument is preset to maintain the internal tem-
perature at 35° C ± 1.5° C. Over- and under-temperature alarm setpoints are
preset at 35.5° C and 34.5° C, respectively.
MA-0103-B
Artisan Technology Group - Quality Instrumentation ... Guaranteed I (888) 88-SOURCE I www.artisantg.com