Level Plus
®
LevelLimit
®
Operation Manual
I
15
I
6. Installation and mounting
6.1 Training
Warning:
When the pipe/hose of the LP-Series level transmitter is installed or
removed from the tank the release of flammable vapors will occur.
Take all necessary precaution when installing or removing the level
transmitter due to the release of flammable vapors.
Installation should only be conducted by qualified service personnel
according to IEC 60079-14 and local regulations or MTS trained
service technicians. MTS offers web based and in person training
for installation, commissioning, maintenance, and repair. MTS also
offers factory direct services for these same functions. Contact MTS to
discuss training or factory direct services before starting.
6.2 Stilling wells and guide poles
Level Plus
®
transmitters can be mounted in slotted or unslotted stilling
wells but a slotted stilling well is always preferred. Using a unslotted
stilling well will negatively affect performance of any level device as
the level in the stilling well can differ from the level in the tank. The
Level Plus
®
transmitter can also be installed to one side of the stilling
well to also allow for sampling and manual gauging from the same
opening as the automatic tank gauging. Contact technical support for
details.
Level Plus
®
transmitters do not require a stilling well for installation.
Our transmitters are installed in numerous tanks without stilling wells
with no loss in performance due to our patented flexible waveguide
and hose. A stilling well is highly recommended for agitated, turbulent,
and/or fast filling tanks.
6.3 Tools
6.3.1 Flexible Hose Tools
• 9/16
"
Socket and ratchet
• Channel Lock pliers
• 3/16
"
Hex Key (Allen wrench)
• 1" Open End wrench
6.3.2 Rigid Pipe Tools
• Channel Lock pliers
• 9/64”
Hex Key (Allen wrench)
• ¾”
Open End wrench
• Common head screwdriver, slotted screwdriver
6.4 Installation steps
Caution:
When assembling and installing the LevelLimit
®
transmitter, be
careful not to allow the flexible hose to kink or be coiled in less
than 381 mm (15 in.) diameter. It is recommended that assembly
and mounting of this transmitter should not be done alone. To
ensure proper and safe assembly of the LevelLimit
®
transmitter, a
minimum of two (2) individuals are recommended. Gloves are also
recommended. PPE may be required for work areas such as safety
shoes, safety glasses, hard hat, and fire resistant clothing.
1. Consult chapter 4.3 before starting.
2. Perform steps 1-10 in chapter 8.4.1
3. Remove stop collar, nut, washer, spacer, and flex stop collar from
flexible hose. Alternatively, remove stop collars and e-ring from
rigid pipe. Do not remove the adjustable fitting from the hose or
pipe.
4. Slide 4” NPT adapter, HI level float, and cable assembly onto level
transmitter. onto flexible hose or rigid pipe and move the adapter
to the top. To prevent damage to the level transmitter keep the
assembly toward the end of the level transmitter.
5. Slide the product float onto the flexible hose or rigid pipe. Slide
the interface float (optional) onto the flexible hose or rigid pipe.
Install stop collar 76 mm (3 in.) from the tip of the rigid section
of the flexible hose or the rigid pipe. Do not drop float(s) or allow
them to free fall along the flexible hose or rigid pipe as damage
may result.
NOTICE
The bottom stop collar can be removed or adjusted based on the
float selected for the application. Please consult the factory for more
information.
6. For the flexible hose mount the hook section of the pipe (this
is the bottom rigid section of the pipe) using the supplied nut,
spacer and washer, tighten securely as shown in Fig. 6, Fig. 7 and
Fig. 8. For the magnet, remove washer before installing in tank.
7. Slide float(s) and 4” NPT adapter assembly back down to the stop
collar to prevent them from free falling during installation into
the tank. Insert the flexible hose or rigid pipe and floats through
the tank opening and lower the transmitter/float assembly into
the tank until it rests on the bottom. If you are using a bottom-
fixing hook, fasten the hook to the appropriate customer-supplied
mating hardware at the tank bottom.
8. Connect the 3/4” NPT (rigid) or the 1” NPT (flex) to the 4” NPT
adapter assembly. Tighten the adjustable NPT fitting to the 4”
NPT adapter.
9. Pull the level transmitter up far enough to add the flex stop collar
or second rigid stop collar over the marking on the pipe. The top
of the stop collar should align with the top of the marking.
10. Lower level transmitter down inside of tank. Tighten the 4”
adapter to the tank.
11. Loosen the Cord Grip on the 4” adapter and make sure the cable
and float move up and down with ease. Tighten cord grip.
