COMAC CAL FLOW 38 BATCH Installation And Technical Conditions page 10

Installation in piping and placement of measuring electrodes in flow sensor
1) in the version without the earthed reference electrode and/or empty piping test (2 electrodes)
2) in the version with earthed electrode and/or empty piping test electrode (3/4 of the electrode)
During installation, beware of:
- dropping the meter onto the ground and damaging the measuring tube or electronics
- contamination of the electrodes (do not touch the electrodes, otherwise they get contaminated)
- when additional sealing is used, avoid its interference in the flow profile of the detector
between the flanges and the pipeline, otherwise the flow measurement error may be increased
Tightening torques
It is absolutely necessary to tighten the bolts and nuts equally by alternating sides and in the order
shown in figure applying the maximum torque according to the table.
If the bolts are tightened too much during the installation of pipework components, deformation of the
sealing surface may occur. In consequence, the torque values indicated in the table are used as a
guidance for tightening the screws and bolts.
Manual FLOW 38 BATCH Page 10 (total 43) COMAC CAL s.r.o.