Operation 4
STERRAD VELOCITY Reader User’s Guide 15
Chapter 4.
Operation
Instructions for Use
This chapter gives instructions on how to use the STERRAD VELOCITY Reader to
test the STERRAD VELOCITY Biological Indicator / Process Challenge Device and obtain
positive or negative results.
Process Description
Remove the test BI from the sterilization chamber, or select a positive control BI
from the shelf carton. When adding a positive control BI, make sure it has the same lot
number as the test BI. Select the incubation well on the reader’s touch screen before
scanning the BI barcode. When prompted, select Test or Control, scan the barcode on
the cap of BI, and enter the operator’s name. Activate the BI and insert it in the well.
The reader will provide the results within 15 minutes.
Warm-up
When initially powered on, the reader will display a splash screen and then
go through a diagnostic and warm-up sequence which takes up to 15 minutes.
After completing the warm-up sequence, the reader will display the Status Screen.
Adding a Positive Control BI
A positive control is an unprocessed BI which is activated then read in the
reader. The positive control ensures the system is functioning properly. Always inspect
the positive control BI prior to processing in the reader to ensure that the expiration
date on BI cap is current, the growth medium ampoule is intact, the growth medium is
purple, the spore disc is lying horizontally in the bottom of the growth reservoir, and the
chemical indicator on the top of the cap is red/pink.
Touch an available well number on the screen or place the BI in an open well.
The selected well will then be used for reading. These steps can be repeated for any
open well. Touch Control to add a positive control BI to the well.
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