3. Instrument Modes
3.3 FOLLOWING TREATMENT
In accordance with clinic procedures, the operator may choose one
of several disinfection processes following a treatment, at the end
of a shift, or at other times. For more on disinfection, see Section
9, Disinfection. The steps to Instrument Auto Off are dependent
on the type of disinfection (if any) used prior to shutdown. For
that reason, two disinfection modes are discussed here first, then
the Auto Off Mode and the Soft Power Off Mode.
3.3.1 Heat Disinfection Mode
3.3.1.1 Instrument status window displays
HEAT CLEAN
3.3.1.2 Instrument action
• If the Heat Disinfection Mode is selected before the
conductivity is less than 1 mS/cm, the fluid path will be rinsed
until the conductivity is below 1 mS/cm then a timed rinse of
approximately 4 minutes will be performed.
• The water is heated to above 84°C.
• The 85°C water is circulated through the fluid path for 15 to 60
minutes (value set by technician).
• Dialysate flow rate is automatically set to 500 mL/min.
• If dialyzer connector(s) is removed from the rinse block when
the temperature is above 70°C, the Instrument will go into
bypass after approximately 10 seconds. Once the dialyzer
connectors are back on the rinse block, dialysate flow through
the dialyzer circuit lines will resume.
• Main alarm lamp is off.
• Audio alarm is muted.
• The blood pump will not operate.
• The ELAPSED TIME display is on hold until the temperature
reaches 85°C. Then the window displays the circulation time
for the 85°C water.
• The heparin pump, dialysate flow rate, conductivity,
temperature, prescribed time, target UF, TMP and UF rate
functions cannot be accessed/changed.
• The UF rate is automatically set to 3.6 L/h.
• The operator may select AUTO OFF.
157-1278-910 Rev A 3-9
November 2003
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