4 – Operation
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4.2.3 Instrument and Drawer Layout
Instruments are provided either as singles, which are countertop individual instruments with LCD; as
stacks, which are two modules stacked on top of each other (only the top has a LCD); or a combination
of the two.
Singles are numbered individually, and each instrument has two drawers: A and B.
Stacks are numbered as a collective. Each stack has four drawers: A, B, C, and D. Drawers are
lettered across the top then across the bottom:
Drawers are divided into columns and rows of stations. Columns are numbered 1–10 from left to right
and rows are lettered A–K from top to bottom, excluding I. This provides a total of 100 stations for each
drawer. Thus, a single has 200 stations; a stack has 400 stations available for cultures (minus any
stations used for temperature QC vials).
The Drawer View display (Figure 4-3) shows the drawer’s column and row numbering. An open
instrument drawer is shown in Figure 4-4.
Stations are designated by Instrument – Drawer – RowColumn (II-D-RCC). Therefore a station
designated 03-B-G8 would be in instrument number 3, the top right drawer, row G and the eighth
column.
4.2.4 Vial and Station Statuses and States
Vials can have both a status and a state, but it is the status that conveys information about the
presence or absence of microbial growth (or the practical availability of a station). The states are used
for reporting purposes only.
The Vial Entry (Figure 4-2), ID Anonymous, Positive Removal, and Negative Removal displays (activity
displays) present counts for the current drawer for the following statuses/states: Positive, Negative,
Blocked/Unusable, Ongoing, Anonymous, and Available. These statuses/states appear at the top right
area of the display, with icons representing statuses/states.
The Drawer View display (Figure 4-3), accessible through the Drawer View button on the Status
display, shows the status of each station in the drawer in a representational view of the drawer. Drawer
View is a useful alternative to physically opening the drawer to view all the station/vial statuses in the
drawer.
AB
CD