16
1.5.5.6. Logic output
The flow meter has a non-isolated logic output. Operation modes,
parameters and electrical characteristics of the logic output are similar to
those of the operation modes, parameters and electrical characteristics
of the universal output in the logic mode.
1.6. Flow meter design
1.6.1. The primary flow converter and the secondary measuring converter form
a single design of the flow meter (see Fig.A.1 of Appendix A).
The pipeline section (PS) of the primary converter is made of high-
strength plastic PA66-GF30. The ends of the PS are fitted with pipe
flanges for connection to the counter flanges.
1.6.2. The plunge PEA used in the flow meter is cylindrical, the end of the PEA
has a radiating plane in the form of a disk. The converters are installed in
the pipeline section in such a way that the radiating PEA plane is in con-
tact with the liquid to be monitored. The PEAs supplied with CP are de-
signed for pressures up to 1.6 MPa.
1.6.3. PEA and the secondary converter are connected by communication ca-
bles hidden inside the enclosure.
1.6.4. The secondary converter is mounted directly on the flow meter's pipeline
section. The processing module board is placed in the secondary con-
verter enclosure, and the indication module board with indicator
– in the
front panel. The modules are connected to each other by a signal loop.
1.6.5. After installation of the interface cable and the universal output, the sec-
ondary flow meter converter with IP68 protection is completely filled with
Hensel GH 0350 type compound. The design of the device is not disas-
sembled.
1.6.6. The appearance of the flow meter may differ from that given in Appendix
A without changing its operational and metrological characteristics.
1.7. Marking and sealing
1.7.1. The marking on the front panel of the SMC contains the designation and
name of the flow meter, the manufacturer's trademark and the approval
mark of the measuring device type. In addition, the maximum tempera-
ture of the liquid to be measured, the supply voltage and the size (DN) of
the flow meter are marked on the individual labels.
The factory numbers of the PEA and pipeline section are indicated
on their enclosures.
1.7.2. After verification of the flow meter the contact pair of the permission to
modify the calibration parameters is sealed. Also, the screws of fixing the
protective cover of the processing module are sealed with the manufac-
turer's seal.
1.7.3. The contact pair of the permission to modify the service parameters can
be sealed after the commissioning.
In addition, the cover of the secondary converter can be sealed with
two hinged seals to prevent unauthorized access during transport, stor-
age or operation.
