TD80™ Level Gauging and Overfill Prevention System Product Manual
Page 32 TD80 Installation/ Rev. 2, August 4, 2015
c. Warning, do not apply Teflon tape or anti-seize compound to the transmitter
threads. Do not apply dielectric grease to the transmitter and probe connection.
This must be a clean and bare metal-to-metal connection.
d. Place the transmitter on top of the probe, supporting it with one hand while hand
engaging the transmitter nut with the probe.
e. Continue to support the transmitter while hand tightening the transmitter nut until
it is resting on the probe O-ring seal.
f. Position the transmitter for the required cable routing. The angled sealing fitting
and cable must not interfere with the tank top mounted fittings and manway.
g. Continue tightening the transmitter nut with a 1 ¾” wrench until the nut
compresses the O-ring on the probe and the transmitter does not rotate on the
probe when twisted by hand. The transmitter to probe connection must not have
any movement to operate properly.
2. Mount the Finch Display
a. Position the Finch Display where indicated by the manufacturing or installation
drawings
b. Bolt the Finch Display to the panel, bracket or protective box. Ensure that the
bolts are not torqued to the extent that the plastic mounting tabs are crushed.
3. Mount the Finch Relay Module (optional)
a. Position the Finch Relay Module where indicated by the manufacturing or
installation drawings
b. Bolt the Finch Relay Module to the panel, bracket or protective box. Ensure that
the bolts are not torqued to the extent that the plastic mounting tabs are crushed.
4. Mount the Alarm Accessories (optional)
a. Position the lights, horns and other alarm accessories where indicated by the
manufacturing or installation drawings
b. Bolt the accessories to the panel, bracket or protective box. Ensure that the bolts
are not torqued to the extent that the plastic mounting tabs are crushed.
Step 4: Inspect the Work
This is an important step in maintaining the quality expected by the customer and
providing a safe installation. The following are suggested items to check. They are not
comprehensive and may be modified to suit the installer’s Quality Assurance (QA)
process.
1. Inspect all welding.
2. Verify that the system components are mounted in the correct locations.
3. Inspect all system components for physical damage that may have occurred during
the installation.
4. Verify that all components are securely mounted with all nuts and bolts tightened.
5. Inspect for any metal debris that is left behind after the installation.
NOTE: Once the Mechanical Installation is complete, refer back to section 2.1.2, TD80
Installation Steps Overview, for clarification on the next installation step.
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