Siemens ADVIA 2400 Operator's Manual page 152

1. Prepare either of the following wash solutions:
WARNING
Probe Wash 3 contains 4.5% potassium hydroxide and 2% sodium hypochlorite.
Avoid contact with skin and eyes. Probe Wash 3 is a corrosive material that can
cause burns. Wear suitable protective clothing, gloves and eye/face protection. In
case of contact with eyes, rinse immediately with plenty of water and seek medical
advice.
Household bleach is 5% sodium hypochlorite. When handling bleach, which can be
used as a cleaning and antiviral agent, wear protective clothing, gloves, and safety
glasses. It is harmful if swallowed and may cause eye or skin irritation.
Use household bleach that is free of heavy metals, such as Clorox.
•
Preferred Solution – Prepare a 10% solution of Probe Wash 3 by diluting 1 part of
Probe Wash 3 with 9 parts of distilled or deionized water. The minimum
recommended volume is 100 mL Probe Wash 3 plus 900 mL of distilled or deionized
water.
•
Alternate Solution – Prepare a 20% solution of household bleach by diluting 1 part of
bleach with 4 parts of distilled or deionized water. The prepared solution is stable for
one week when stored at room temperature. Minimum recommended volume is
200 mL bleach plus 800 mL of deionized distilled water.
The remainder of this procedure describes the steps to clean the WUD and
NOTE:
DWUD wash stations. Perform the entire procedure for the WUD lines and nozzles, then
repeat the entire procedure for the DWUD lines and nozzles. The various parts are
described as the "DWUD/WUD," meaning one or the other, depending on which is being
cleaned at the time, and does not mean both simultaneously.
2. Prepare the WUD/DWUD for cleaning:
a. With the system in READY mode, log on as supervisor.
b. Place paper towels on top of the RRV and DTT cuvettes directly under the
WUD/DWUD nozzles as a precaution.
c. Using a 4-mm hex wrench, loosen the captive screw (1) that secures the
WUD/DWUD wash head to the WUD/DWUD mechanism.
152 ADVIA 2400 Operator's Guide