Operator`s manual

P/N 3027435 Rev. C

Regular Maintenance

WRO 300

3.1.2 Test Kit Example

• Minncare Residual Test Strips, MCP order number 185-40-004

(preferred).

• STERICHEK

Residual Peroxide, MCP order number WT811905

(alternate).

3.1.3 Chemical Disinfection Procedure

Chemical disinfection of the WRO, including product water loop.

Step 1 The WRO must be in Standby mode.

Step 2 Disconnect the WRO 300 from the dialysis machine with the

quick connector on the product water loop — the connector

can be left in place. Comply with the caution message below.

CAUTION

A test for residual disinfectant after rinse must be performed

before the initiation of the next dialysis session. The residual

concentration of the disinfectant in the fluid must be below lev-

els specified by the clinic or by national standards. It is essen-

tial to use an appropriate test method, either with proven

sensitivity for the disinfectant or recommended by the manu-

facturer of the disinfectant.

CAUTION

The chemical container must be located below the chemical

intake.

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

If power failure occurs during chemical disinfection 404 RINSE

REQUIRED is displayed when the WRO 300 restarts (also 401

REMOVE WAND is displayed during the intake phase). Press until

light goes on, to initiate rinse.

CAUTION

If the WRO 300 is not disconnected from the dialysis machine

during the chemical disinfection procedure, the test for residu-

als after the chemical disinfection procedure must be per-

formed on the dialysis machine according to the Operator’s

Manual of this device.