EN
3.
After inserting the tube, wait for about 5 minutes before proceeding with the setup to allow the tube
enough time to regain its original structure.
4.
Ensure that the temperature of the medium you use for your application is the same as the one the
BioProTT
TM
Clamp-On SL was adjusted and calibrated for.
5.
Carry out a zero flow adjustment. For this,
–
allow sufficient time for the system to adapt to ambient conditions.
–
ensure that the sensor is clamped on at the correct position.
–
ensure that there are no air bubbles inside the tube.
–
the tube must be completely filled with liquid, but the liquid
must not
move.
–
the acoustic coupling rate must be checked. It should be ≥ 60 %.
→
A zero flow adjustment must be carried out before each measurement
to avoid possible offsets
from the measured values.
During the flow measurement:
•
Ensure that the coupling is within the operating range (i.e. ≥ 60% ). If the coupling falls below 50%, depending
on the respective evaluation device, there is either a warning issued or no flow value is displayed as the
low coupling might impair the measurement.
•
It is important that any unwanted interruption of the process due to damage or kinking of the tubing is
avoided at all times.
•
Any changes in the medium itself or its temperature can cause errors or anomalies in the measurement.
•
It must be ensured that the correct calibration parameters are used.
•
While it is possible to carry out measurements outside of the specified flow range, em-tec GmbH cannot
guarantee that resulting flow values will be within the given accuracy range.
The parameters of the connected BioProTT
TM
Clamp-On SL and the selected calibration table are accessible
via the display or the web interface of the respective BioProTT
TM
evaluation device.
Please note:
The stated measurement accuracy of the BioProTT
TM
Clamp-On SL is only valid if the parameters of your
process and application are the same ones the sensor was calibrated and adjusted for and if your setup
respects the factors stated in the TechNote "
BioProTT™ Clamp-On SL
Copyright em-tec GmbH
Page 13
D162-704 BioProTT™ Clamp-On SL – User Manual– V4.0
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