SOMMER USH-9, Руководство пользователя

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7.5.2 SDI-12
Connect the USH-9 to a data logger by SDI-12 according to the figure below.
SDI-12 uses a shared bus with a ground wire, a data wire (indicated as SDI-12) and an op12 V
wire.
NOTE The connection with the 12 V power supply is optional and depends on
the connected SDI-12 master device (typically a data logger).
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