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Maximum balancing error
during treatment
Balancing error
Scale system
Substituate / dialysate
temperature*
Donor plasma temperature
(FFP)*
Fresenius Medical Care multiFiltrate IFU-EN-UK 15A-2015
If the total balancing error exceeds 500 g / adult's treatment
(50 g / paediatric treatment), the treatment must be terminated.
In normal operation (scale balancing active and error-free), even a
deviation of only a few grams (depending on the flow rate) from the
target value will result in a balancing warning. Malfunctions (defective
scales or minor leaks) can result in larger deviations.
– Max. balancing deviation < 100 ml/h
– Greater deviations are detected within a total maximum volume
deficit of 400 g (functional test of scales)
E = EUF + ESUB
E = balancing error
EUF = ultrafiltration error
ESUB = substitution error
For each scale:
Max. loading capacity: 12 kg
Weighing range: 0 kg to 12 kg
Resolution: 1 g
Max. linearity deviation: ≤ ±1%
Treatment modes: CVVH, Pre-Post CVVH, CVVHD and CVVHDF:
Adjustment range (target temperature): 35 °C–39 °C
Resolution: 0.5 °C
Standard accuracy: +1 °C / –2 °C (on average)
The temperature at the filter depends on the flow rate plus the
temperature of the solution and the environment.
– There are two alarm threshold values. If values temporarily exceed
an inflow temperature of 42 °C, an override period begins without an
immediate alarm. Once 5 seconds have passed, an alarm is
triggered and the fluid inflow is stopped, which must be
acknowledged. If values continue to exceed 42 °C, the alarm is
triggered again after 5 seconds. Another alarm is triggered once the
inflow temperature reaches 46 °C. This also results in the halting of
the fluid inflow. The alarm can be acknowledged, but is triggered
immediately again if the inflow temperature remains > 46 °C. Once
the "absolute" temperature threshold has been exceeded, the
heating system remains switched off for a period of 30 seconds.
Treatment mode: MPS:
– If the solution enters the system with a temperature of 20 °C and the
maximum plasma rate is 50 ml/min, a temperature of 37 °C will be
reached.
– The donor plasma (FFP) must be warmed to a minimum
temperature of 20 °C prior to the treatment.
(* = Important performance characteristics according to IEC 60601-1)
Chapter 12: Specifications
12-13
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