Emerson Rosemount 326L, Быстрый старт

Страница: 20 / 52

Prerequisites
Note
Before installing or removing the level transmitter, ensure that no pressure is applied to
the system. Also ensure that there is no medium in the tank that might leak during
installation.
The level transmitter can be installed using a mounting or welding adapter with a sealing
ring. The adapters are supplied with an EPDM o-ring. Further sealing ring materials (FKM)
are available. For ordering information, see the transmitter Product Data Sheet. For
installation instructions, refer to the instructions included with the mounting adapter.
Note
Certain configurations do not allow alignment of the transmitter housing. With process
connections that cannot be aligned, like welding adapters, take into account the final
position of the transmitter housing (readability of the display, cable entry). Observe marks
on adapters. If needed, screw in the unit and mark the requested alignment.
Procedure
1. Lightly grease the thread of the transmitter using a lubricating paste suitable and
approved for the application.
2. Insert the unit into the process connection.
3. Tighten it using a spanner to a torque of 25.8 ft/lbs (35 Nm).
2.2.4 Installing in an open tank
Follow these guidelines when installing the level transmitter in an open tank.
• Use a metal fixture to install the level transmitter to the side of the open tank. It serves
as a launching plate (R) for the level transmitter. The minimum size for a square fixture
is 5.91 by 5.91 in (150 by 150 mm). The minimum size for a circular fixture is 5.91 in
(150 mm) diameter. For more information, see
Operation with a single probe .
• If possible, mount the level transmitter in the middle of the fixture. Adhere to the
specified installation distances according to
Installation considerations . If necessary,
perform a tank adjustment.
D1: Minimum 5.91 in (150 mm)
R: Launching plate
Installation Quick Start Guide
January 2019 00825-0100-4326
20 Quick Start Guide