2-40
Chapter 2 Installation of this Device
(2) Open Tank Piping
(i) Recommended piping example
A typical open tank liquid level piping example is illustrated below.
Since the high pressure side is attached directly to the nozzle on the lower portion of the tank,
a connecting pipe will normally not be necessary.
Figure 2-44. Liquid Level Measurement (Open Tank) Piping Example
(3) Sealed Tank Piping
(ii) Recommended piping example
A typical sealed tank (dry leg) liquid level piping example is illustrated below.
Be sure to implement the following items.
• Connect the high pressure side of the device to the lower portion of the tank, and connect the
low pressure side to the tank's gas seal pipe.
• After doing the piping work, confirm that there are no pressure leaks in the connecting pipes,
the transmitter, etc.
Figure 2-45. Liquid Level Measurement (Sealed Tank, Dry Leg) Piping Example