TD80™ Level Gauging and Overfill Prevention System Product Manual
Rev. 2, August 4, 2015/ TD80 Operation Page 125
5.8 Normal Operation Troubleshooting
See the troubleshooting chapter for detailed instructions to resolve the problem.
The TD80 transmitter constantly performs error checking. Any detected errors are coded
and sent to the display, and shown in the form of E xx (where xx is the two digit error
code).
Error codes 01, 02, 04, 10, 20 and 40 can be combined if there is more than one error
code at a time, for example E 26 is E 02 + E 04 + E 20. E 80 to E 84 will not be combined
with any other error codes.
Faint beeping coming from horn.
1. Check the horn for loose, corroded or disconnected
wiring
2. Ensure that a 150ohm to 500ohm, 2W resistor is
connected across the horn
3. Replace the horn with a less sensitive one
Display does not turn on.
1. Check for a blown power fuse
2. Check for loose, corroded or disconnected wires on
the power or ground wiring
3. Possibly faulty display
4. Battery voltage is less than 8VDC
Only the decimal point appears
on the display.
1. Possibly faulty display
2. Check for loose or corroded wires on the power
and ground wiring
3. Battery voltage is less than 8VDC
Display shows only ”- - - -“
Communication between the level transmitter and the
display has been interrupted.
1. Check the wiring between the display and
transmitter
2. Possibly faulty level transmitter
3. Possibly faulty display
Large level offset or error.
Level transmitter may be faulty or programming is
incorrect
Display shows “2 LO” during
calibration
Power down the system, add more liquid to the tank
and recalibrate. (see Calibration section of this
manual)
To Next Page
Loading...
Need help?
General
