MADDALENA ElecTo SONIC, Инструкция по установке, использованию и техническому обслуживанию

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14
Installation position
Observe the indications on the dial (letters
H and V):
– H: the meter must be installed with the
dial in a horizontal position;
– V: the meter must be installed with the
dial in a vertical position;
– H and V: the meter may be installed with
the dial in either a horizontal or vertical
position;
– If not shown, avoid vertical installations
with downward flow, or with the dial fac-
ing downwards.
Straight sections and flow straighteners
When using straight sections upstream and/
or downstream of the meter, refer to letters
U and D on the dial. If the letters U and/or
D are followed by the letter S, install a flow
straightener.
Allowable water pressure (ISO 4064-1)
The maximum allowable pressure (MAP) is
16 bar, and is displayed on the meter dial. If
not indicated on the dial, it must be 10 bar.
These values must never be exceeded.
The maximum allowable pressure (MAP)
downstream of the meter must be greater
than or equal to 0.03 Mpa (0,3 bar).
Commissioning
Before putting the meter into operation,
completely vent the air from both the pipe
and the meter itself (rotate it if necessary).
The interception/adjustment valves must be
fully open when doing this. Open the valve
at the start first and then the valve at the
end.