9. Disinfection
9. DISINFECTION AND CLEANING
9.1 SPECIAL TERMINOLOGY
The following terms are important to understanding the concepts
discussed in this section.
Single Pass Chemical: There is no recirculation or dwelling for this type of
chemical. Recirculating or dwelling could cause damage to the
Instrument. Included in this category are sodium hypochlorite and
Amuchina.
Dwell Chemical: This type of chemical is recirculated and allowed to dwell
(stand) in the Instrument for a certain period of time. Included in
this category are Actril, Dialox, and Doxan.
Conductivity Threshold: This is the minimum conductivity value that must be
reached when the disinfectant is infused into the flow path. If this
value is not reached, the Instrument assumes that the wrong
disinfectant is being used, and terminates the disinfect cycle. This
conductivity threshold value depends on the chemical used for
disinfection.
Conductivity Threshold Adjust: This is the value by which the Conductivity
Threshold can be adjusted from the set value.
Prerinse Conductivity Threshold: This is the conductivity value above which
the Instrument will automatically rinse the Instrument with fresh
RO water until either the conductivity is equal to or less than this
Prerinse Conductivity Threshold, or the Prerinse Timeout has
elapsed.
Prerinse Timeout: This is the time the Instrument will be automatically
prerinsed if the conductivity is above the Prerinse Conductivity
Threshold when the disinfect cycle is initiated. It starts counting
when the conductivity drops below 1.0 mS/cm. Prerinse will stop
if the conductivity becomes equal to or less than the Prerinse
Conductivity Threshold. The factory default for the Prerinse
Timeout is 5 minutes.
Single Pass Chemical Alarm Trigger Time: This is the length of time after
infusion begins when the Instrument will trigger an alarm if the
Conductivity Threshold is not reached. The factory setting is 7
minutes @ 500 mL/min.
Dwell Chemical Alarm Trigger Time: This is the length of time after infusion
begins when the Instrument will trigger an alarm if the
Conductivity Threshold is not reached. The factory setting is 8
minutes @ 500 mL/min.
157-1278-916, Rev A 9-3
March 2004
To Next Page
Loading...
Need help?
General
