9. Disinfection
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It displays the message “Put Dialyzer Connectors on Rinse
Block” in the instruction window, if either sensor for the
dialysate connectors do not detect the presence of a connector.
It displays the message “Chem Disinfect: Infusion” in the
instruction window when the concentrate and dialysate
connectors are on the rinse block.
It sets the “A” concentrate pump rate according to Table 9-8.
It sets the “B” concentrate pump rate to the 20.13:1
proportioning ratio rate.
It cycles the bypass valve into bypass for 5 seconds every
minute.
It opens the dialysate filter purge valve #2 if Dialysate Filter
hardware is installed (refer to Section 24).
It enables the level control of the incoming water valve.
It de-energizes the recirculation valve.
It holds the elapsed time counter when any of the following
conditions occur:
o No Incoming Water alarm.
o Flow Restricted alarm.
o No Dialysate Flow alarm.
o Concentrate connectors are not on the rinse block.
o Dialysate connectors are not on the rinse block.
9.5.3 Recirculation
When a recirculation cycle is initiated, the Instrument will perform
the following actions.
It ensures the concentrate connectors are connected to their
assigned ports.
It displays the message “Chem Disinfect: Recirculation” in
the instruction window when the concentrate and dialysate
connectors are on the rinse block.
It sets the “A” concentrate pump rate to the 35:1
proportioning ratio rate.
It sets the “B” concentrate pump rate to thte 20.13:1
proportioning ratio rate.
It opens the rinse valve (dialysate pressure relief valve).
157-1278-916, Rev A 9-25
March 2004