48
7.4
Accuracy
7.4.1
Flow Rate Accuracy
* Test condition:
Back pressure:
0 mmHg,
Container height:
50 cm, room temperature at 22°C. ± 5 %
on the rate range 100-450 mL/h, additional maximum rate error of ± 4 % for other rate ranges.
Note: the flow rate accuracy varies by 0.35% per °C variation of the room temperature.
7.4.2
Effects of Pressure Variations on Accuracy
* Test condition:
Container height:
50 cm
** Test condition:
Back pressure:
0 mmHg
*** Due to set length the container cannot be placed below - 15 cm
Warning
Accuracy (flow rate, volume infused, pressure) can be influenced by fluid
viscosity, fluid temperature and TPN product that is not fully compatible
with a 1.2 micron filter on the set.
Note: All tests below are in accordance with the IEC 60601-2-24
standard and tested with ISO Class III water.
Accuracy
Cumulative Flow Rate*
± 5 % for 24 hours
Accuracy
Effects of Pressure
Variations on Flow Rate
Accuracy*
Back pressure
Accuracy
(from mean values)
+ 13.33 kPa
- 13.33 kPa
~ -
2 %
~ +
2 %
Effects of Negative Solution
Container Heights on Flow
Rate Acuracy**
Container Height
Accuracy
(from mean values)
-15 cm***
0
50 cm
- 2 %
+
5 %
