Before installing, ensure that:
•
There is adequate room for the installation of the
Modulevel.
•
Using a level, the vessel mounting connections are level
within 3° of vertical.
•
The process temperature, pressure and specific gravity are
within the unit’s specifications for installation.
See
Specifications, Section 4.8.
•
If not already done, remove the shipping strap and wire
assembly holding the displacer in place in the chamber.
This assembly must be removed through the bottom
chamber connection or drain before start-up.
To install:
1. Carefully align the Modulevel chamber process connec-
tions with the vessel connections.
2. Attach the process connections accordingly, based on the
type of connection. Appropriate gaskets and bolting will
be required if using flanged process connections.
Note: It is recommended that shut-off valves be installed in
each equalizing line to the chamber, along with a
blow-down valve (refer to Figure 4). Equalizing lines
should be sized at least as large as the connections
provided at the chamber.
3. Make sure that the chamber is vertically level within 3° in
each direction to ensure frictionless operation of the inter-
nal displacer.
Caution:
All Modulevels are shipped from the factory with
the enclosing tube tightened and the transmitter
head set screws locked to the enclosing tube.
Failure to loosen the set screws prior to reposition-
ing the supply and output connections may cause
the enclosing tube to loosen, resulting in the possi-
ble leakage of the process liquid or vapor.
4. Loosen the transmitter head lock screws (socket type) and
position conduit outlet in the desired direction. See Figure
3 on page 4.
5. Retighten lock screws.
Note: Since the transmitter head is rotatable through 360º, it
is important to make certain that the controller locking
screws are tight before making electrical connections.
5
48-618 ES/EZ Modulevel Displacer Level Transmitter (Top Hat Assembly Design)
Liquid
Level
Figure 4
Chamber Type Installation
Side-Side Process Connections
