Operator`s manual

WRO 300
P/N 3027435 Rev. C
Regular Maintenance
21
Step 11 Keep the wand in the container and disconnect the wand by
turning the connector a quarter of a turn and gently pull it out.
Let the disinfectant liquid from the line and wand flow back
into the container. Then clamp the line. Also check that cor-
rect amount of disinfectant has been consumed.
Step 12 Remove the disinfection wand from the container and flush
with water.
Step 13 The chemical disinfection procedure will now continue auto-
matically with DWELL PERIOD followed by RINSE. The
remaining time to complete the chemical disinfection proce-
dure is also displayed.
Step 14 When the chemical disinfection program is complete, the dis-
play will show PERFORM RESIDUAL TEST. The indication
will remain lighted and the will flash.
3.1.4 Residual Test After Chemical Disinfection
Step 1 Press until light goes on, to start WRO 300.
Indication will light and will flash.
CAUTION
When requested by the WRO unit, remove the disinfection wand
from the chemical intake. Failure to remove the disinfection
wand can cause siphoning of the chemical solution from the bot-
tle resulting in the tank overflowing chemical solution through the
back of the machine.
NOTE
The conductivity value is checked during the final five minutes of the
rinse phase. If the value is above the conductivity notification limit
(refer to the section Conductivity Monitoring on page 10) when the
preset rinse time is finished it is prolonged 30 minutes. If the value
decreases below the conductivity notification limit the prolonged rinse
finishes.
If the level still is above the conductivity notification limit when the pro-
longed rinse is finished the alarm 403 HIGH CONDUCTIVITY RINSE
appears.
CAUTION
If the WRO 300 has been connected to the dialysis machine
during the chemical disinfection procedure, the test for resid-
uals after the chemical disinfection procedure must be per-
formed on the dialysis machine according to the Operator’s
Manual of the dialysis machine.