BioProTT
TM
Flow Measurement System Version 1.00 page 32 of 75
If the Clamp-On Transducer is used at significantly different medium
temperatures compared to the calibration, this can lead to inaccurate
measurement results.
Please note: Customer-specific calibrations can also be carried out on request. Please
contact your Support and Service Department for further details.
7.3 Measurement Accuracy and Tube Arrangement
Accuracy ± 3% of reading ± max. 20 ml/min
The accuracy has been confirmed under the following reference conditions:
Liquid temperature calibration temperature ±5K
Ambient temperature 20°C ±5K
Straight inlet section 10x ID of tubing, fully developed flow profile
Tubing Raumedic-ECC-Blood Line PVC
Accounstic couplant applied
Calibration factor 1.00
Figure 15: Accuracy graph
Optimized Accuracy:
As the measurement allows a maximal flexibility with respect to positioning the sensor the
given accuracy is a standard under the reference conditions. Certain setups allow higher
levels of accuracy and can be evaluated by a factory calibration certificate on customer
request.
Please also observe the steps below to ensure optimal measurement conditions.
Ensure a straight lead-in and run-on area (“straight inlet”):
To prevent turbulence and the associated measurement inaccuracies, it is
recommended to stretch the tube out straight in the area where it is clamped.
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