Operator`s manual
WRO 300 H
P/N 3027436 Rev. C
Regular Maintenance
23
Step 14 When the chemical disinfection program is completed the dis-
play will show PERFORM RESIDUAL TEST. The indication
will remain lighted and the will flash.
3.2.4 Residual Test After Chemical Disinfection
Step 1 Press until light goes on, to start WRO 300 H.
Indication will light and will flash.
Step 2 Collect a water sample either from the product water line or
from the dialysis machine according to the caution above.
Step 3 Test for disinfectant residuals with Minncare
®
Residual Per-
oxide test strips or other approved test strips or methods.
Step 4 Confirm by pressing until light goes out. Indication
remains on.
Step 5 Remove any tag indicating storage with disinfectant.
If residuals are detected after starting the WRO 300 H by pressing
until light goes on, repeat the residual test every five minutes until no
residuals can be detected.
CAUTION
If the WRO 300 H 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.
RUN
X
μS
/
cm










