Quality Management Option
12-2
20077/021 US XTRA Operator’s Manual
Enabling Quality Management Options
The hematocrit indicator (“Hct indicator”), the supernatant removal indicator and waste line color
indicator (“WLC indicator”) are optional features and must be enabled in the Features tab of the
Configuration Mode Screen before the functions associated with them will be available. Refer to “How
to Enter the Configuration Mode” on page 8-2 for instructions on entering the Configuration Mode
Screen. For more on configuring the X
TRA system refer to the rest of
Chapter 8: Configuring X
TRA
.
Hematocrit (Hct) Indicator
The XTRA system is equipped with an integrated, non-invasive, optical hematocrit (Hct) indicator which
measures the Hct (%) of the fluid entering and of the RBCs leaving the bowl.
The Hct indicator is located under the clamp latch on the top surface of the machine (see
Figure 12-1).
Neither the user interface elements associated with the Hct indicator, nor the data it collects, will be
available unless the “HCT indicator” feature is enabled from the Configuration Mode Screen (refer to
“Enabling Quality Management Options” on page 12-2).
User Interface
When the hematocrit indicator is enabled, the information gathered by the indicator is presented to
the operator during processing through the user interface in two ways:
• The Fill phase and Empty phase screens will display an “Hct In” and “Hct Out” fields, respectively,
containing the Hct (%) of the fluid entering or of the RBCs leaving the bowl. The “Hct In” field is
also displayed during the Concentrate cycle.
• The tally table displayed in the Tally tab of the Menu Screen and in the End of Case Screen will
contain a “Hct (%)” column containing the average hematocrit of the processed blood for each
cycle of the case.
Calibration
If enabled from the Configuration Mode Screen (refer to “Enabling Quality Management Options” on
page 12-2), the hematocrit indicator is calibrated with saline solution during the initial software testing
and loading of the pump loop when the X
TRA system is powered on.
If the system does not detect the presence of saline solution at calibration time, it issues the message:
“HCT indicator calibration: connect saline solution”. To troubleshoot, refer to
Chapter
14: Troubleshooting
, specifically the description of “HCT indicator calibration: connect saline solution”
on page 14-6.
CAUTION
It is recommended that the operator manually monitors the color of the fluid
in the waste line before proceeding with the Empty phase.
WARNING
XTRA is provided with an indicator which measures the Hct of the
fluid entering and of the RBCs leaving the bowl. As this system is
mainly intended to provide the user with a trending of Hct values, it
is recommended that alternate means of measuring hematocrit be
used when it is requested to evaluate the final hematocrit in the RBC
bag. The same holds true also for volume, supernatant removal and
waste line color monitoring features.
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