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Operating Manual
ALARMS AND PROBLEM CORRECTION
Software 2.6
B|BRAUN
Chapter 8 Page 7 of 27
SHARING EXPERTISE
2.6_CA-EN_03
Code Alarm Text Alarm Cause Corrective Action
A 39 Maximum arterial
pressure (PA)
Arterial pressure too high 
Ensure that:
 The arterial access is free and properly
connected.

If necessary, increase the blood flow.
A 40
Minimum prefilter
pressure (PBE)
Prefilter pressure too low 
Ensure that:
 The venous access is free and properly
connected.
A 41 Maximum prefilter
pressure (PBE)
Prefilter pressure too high 
Ensure that:
 The venous access is free and properly
connected.

The venous line is not kinked or clamped.
A 42 Minimum venous
pressure (PV)
Venous pressure too low 
Ensure that:
 The arterial access is free and properly
connected.

The buffer line is not kinked or clamped.
A 43 Maximum venous
pressure (PV)
Venous pressure too high 
Ensure that:
 The venous access is free and properly
connected.

The venous line is not kinked or clamped.
A 44 Minimum plasma
pressure (PPL)
Plasma pressure too low,
plasma flow too high

Ensure that:
 The blood flow/plasma flow ratio is
approximately 1:3.

The plasma filter is unobstructed and
functional. Replace the plasma filter if it is
obstructed (see 8.3.4).

If necessary, reduce the plasma flow.
A 45 Maximum plasma
pressure (PPL)
Plasma pressure too high
Defective PPL pressure
transducer
Defective pressure sensor

Check the plasma line and replace it if you
find a defect.
A 46 Low PPF. Check high
chamber level, protector
or buffer bag empty.
Precipitate filter pressure
too low

Ensure that:

The clamp on the buffer line is open.
 The seal of the acetate buffer bag is open.
 The acetate buffer bag is not empty.

The level in the PPF chamber is not high
and especially the PPF protector is not wet.
A 47 Maximum precipitate
filter pressure (PPF)
Precipitate filter pressure
too high
Defective level detector

Ensure that:
 The lines after the precipitate chamber are
not kinked or clamped.

The pump segment of the reinfusion pump
is correctly inserted.
 The precipitate filter is not saturated. If the
precipitate filter is saturated, a rise of the
PDPA occurs in parallel. Replace the filter in
this case (see 8.3.5).
 The heparin adsorber is permeable. If this is
not the case, replace the heparin adsorber
(see 8.3.6).

The dialyzer is permeable. If this is not the
case, replace the dialyzer (see 8.3.7).

If necessary, reduce the plasma flow or the
reinfusion flow.