Auto Flow And Idle Mode; Using Auto Flow; Dialysate Flow Auto Flow Features - Fresenius Medical Care 2008T Operator's Manual

Auto Flow and Idle Mode

Using Auto Flow

With Auto Flow selected, the dialysate flow is proportional to the blood flow rate. As the
blood flow rate increases, the dialysate flow rate will increase also. The dialysate flow will
only adjust within the range of 300 or 500 (depending on a Service Mode selection) to 800
ml/min. During a treatment (blood sensed) with Auto Flow selected, the dialysate flow rate
will only change when the user changes the blood flow rate (water alarms and alarms that
stop the blood pump will not change the dialysate flow).
See "Auto Flow Service Mode Selections" on page 265 to set the Auto Flow option in
Service mode.
Table 38 – Dialysate Flow Auto Flow Features
Feature
2008T Machine Operator's Manual P/N 490122 Rev N
Function
The prescribed dialysate flow rate, in ml/min, is entered on the
"Home" screen. The rate, displayed in ml/min, can be entered from 0
to 800 in increments of 100. "Auto Dialysate Flow" may be selected
by scrolling up past 800. "1.5x" or "2x" may be displayed, depending
on the setup in Service Mode. If one of the automatic selections is
selected, the dialysate flow rate will be set to approximately either 1.5
times or 2 times the blood flow rate. The dialysate flow rate will then
be between 300 (or 500 depending on the setup in Service Mode)
and 800 ml/min, in 100 ml/min increments.
Idle Mode also affects the dialysate flow rate of the machine when
turned on or after a Rinse or Disinfection program.
Warning! Setting the dialysate flow to a rate that is too
low can adversely affect dialyzer clearance and reduce
treatment efficacy. If Auto Flow selects a flow rate below
that prescribed, the dialysate flow may be manually set to
the desired value.
After the flow rate selection has been confirmed, the Dialysate Flow
button displays the current dialysate flow rate. If "Auto Flow" is
active, the flow rate will be indicated with the letter "a" preceding the
flow rate as shown to the left.
Appendix C
249