3 Overview
12 STERRAD VELOCITY Reader User’s Guide
System Status Indicator
The System Status indicator light indicates when the device is powered on by
displaying a blue light. When scanning the BI barcode, the blue light ashes brighter to
indicate a successful scan. If the system detects an error the status indicator changes
to red. The system status indicator will blink red when a system status error is detected,
and it will remain solid red when a fatal error is detected. The indicator would display
a red light for issues such as: the device is unable to read from the internal storage,
the internal clock returns an erroneous reading, or the device detects a voltage or
temperature outside of a specic range. Refer to the “Troubleshooting” section of this
guide (Chapter 8) if a red system status indicator is displayed.
System Status Indicator Light
Indicator State Meaning
Solid Blue System Status: OK
Bright Blue Flash
Visual afrmation that biological indicator
barcode has been scanned successfully.
Blinking Red System Status: System Failure
Solid Red System Status: General System Error
Table 1. System Status Indicator
Biological Indicators
The BI is a single-use testing device used to monitor the effectiveness of
hydrogen peroxide sterilization. STERRAD VELOCITY Biological Indicator / Process
Challenge Devices are for use in STERRAD Sterilizers only. The BI is designed to monitor
all cycles of the STERRAD NX with and without ALLClear Technology, STERRAD 100NX
with and without ALLClear Technology, and STERRAD 100S Sterilization Systems.
Each biological indicator includes a chemical indicator on the top of the cap which
changes color from red/pink to yellow, or yellow with some red/orange/brown dots,
when exposed to hydrogen peroxide (refer to the “Chemical Indicator Result” section
(Chapter 4) for more detailed instructions). During the sterilization cycle hydrogen
peroxide passes into the interior of the BI through the sterilant ingress windows and
kills the indicator organism. Once the sterilization cycle is complete the BI is placed
in one of eight biological indicator wells, on the top of the reader, for incubation and
reading. The BI wells detect the presence of the BI and begin the incubation and
interrogation process.
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