TD80™ Level Gauging and Overfill Prevention System Product Manual
Page 82 TD80 and Overfill Prevention System Troubleshooting/ Rev. 2, August 4, 2015
13. Finch Display continuously shows “2 LO”.
a. Check the probe for physical
damage, defects, corrosion or
product build up.
ii. Probe may be bent or
twisted.
Repair or replace the
probe.
iii. Inspect the probe for product
buildup.
Clean the probe with a
solvent compatible with
the product.
b. The TD80 transmitter may be
defective.
Replace the TD80 transmitter with a serviceable unit that
has been programmed with same information as the one
it is replacing.
c. Check the probe to TD80
transmitter connection for
contamination.
Clean out any contamination such as water, oil, grease or
dirt. The connectors must be clean and make a solid
mechanical connection. Retighten the connectors and test
the system.
d. Check installation of the coaxial
probe if installed
The transmitter must be
securely fastened to the probe
Hand tighten the
transmitter nut until it is
at the o-ring, then fully
tighten with a wrench.
14. Finch Display shows erratic level measurements or “2 LO”.
a. Finch Display shows
erratic level measurements
while a mobile radio is
keyed or other radio
equipment transmits.
Physically separate all TD80 system components and wiring
from the radio devices.
b. Finch Display shows
erratic level measurements
or “2 LO” while loading or
unloading product.
i. Check the probe for
physical damage,
defects, corrosion or
product build up.
1. Probe may be faulty, replace the
probe.
2. Probe may be bent or twisted, repair
or replace the probe.
3. Probe may be corroded, replace the
probe.
4. The shorting block may be loose or
missing, repair or replace the shorting
block.
5. Inspect the probe for product
buildup. Clean the probe with a solvent
compatible with the product.
ii. The TD80
transmitter may be
defective.
Replace the TD80 transmitter with a
serviceable unit that has been
programmed with same information as
the one it is replacing.
iii. Check the probe to
TD80 transmitter
connection for
contamination.
Clean out any contamination such as
water, oil, grease or dirt. The
connectors must be clean and make a
solid mechanical connection.
Retighten the connectors and test the
system.
c. Check installation of the
coaxial probe if installed
The transmitter must
be securely fastened
to the probe
Hand tighten the transmitter nut until it
is at the o-ring, then fully tighten with a
wrench.