Endress+Hauser Proline Promag W 400 HART, Руководство по эксплуатации

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Installation Proline Promag W 400 HART
22 Hauser
Horizontal
1
2
3
2
A0029344
1 EPD electrode for empty pipe detection
2 Measuring electrodes for signal detection
3 Reference electrode for potential equalization
• Ideally, the measuring electrode plane should be horizontal. This prevents brief
insulation of the two measuring electrodes by entrained air bubbles.
• Empty pipe detection only works if the transmitter housing is pointing upwards as
otherwise there is no guarantee that the empty pipe detection function will actually
respond to a partially filled or empty measuring tube.
Inlet and outlet runs
If possible, install the sensor upstream from fittings such as valves, T-pieces or elbows.
Observe the following inlet and outlet runs to comply with accuracy specifications:
≥ 5 × DN ≥ 2 × DN
A0028997
 6 Order code for "Design", option A "Insertion length short, ISO/DVGW until DN400, DN450-2000 1:1" and
order code for "Design", option B "Insertion length long, ISO/DVGW until DN400, DN450-2000 1:1.3"
≥ 0 × DN
A0032859
 7 Order code for "Design", option C "Insertion length short ISO/DVGW until DN300, w/o inlet and outlet
runs, constricted meas.tube"
To keep within the in-service maximum permissible errors for custody transfer no
additional requirements apply with regard to the graphic illustrated above.
Installation dimensions
For the dimensions and installation lengths of the device, see the "Technical
Information" document, "Mechanical construction" section.