TROUBLESHOOTING GUIDE
SYMPTOM CAUSE ACTION
Display blank, Transmit Neon
not flashing, transducer
not pulsing
No power Check power supply, wiring, and
voltage selection switch.
No response to programmer. Obstructed infrared interface, or
defective programmer.
Clean enclosure "docking bay" and
programmer magnet slot.
Displays "Short" and "tb:(#)". Short circuited transducer cable,
or defective transducer.
Repair or replace as necessary.
Displays "Open" and "tb:(#)". Transducer not connected. Connect transducer, or remove Point #
from service (P001=0).
Open circuited transducer cable,
or defective transducer.
Repair or replace as necessary.
Displays "Error" and "tb:(#)". Transducer connected wrong. Reverse BLK and WHT wires.
Wrong Transducer (P004). Enter correct value.
Displays "LOE". Weak or non-existent echo. Relocate and/or re-aim transducer at
material level or object.
Proceed to Measurement Difficulties.
Displays "EEEE". Reading too high. Select larger Units (P005), or lower
Convert Reading (P061).
Reading fluctuates while
material level is still,
(or vice versa).
Incorrect measurement
stabilization.
Alter Measurement Response (P003)
accordingly.
See
Measurement Response.
Reading is fixed, regardless of
the actual material level.
Transducer beam obstructed,
standpipe too narrow, or
transducer mounting resonant.
Relocate and/or re-aim transducer at
material level or object.
Proceed to Measurement Difficulties.
Material level reported is always
"off" by the same amount.
Incorrect Empty (zero) reference. See Empty (P006),Reading Offset
(P063), Offset Calibration (P650), &
Offset Correction (P652)
Measurement accuracy
improves as level nears
transducer.
Incorrect Sound Velocity used
for distance calculation.
Use an ultrasonic / temperature
transducer or a TS-3 temperature
sensor.
See TECHNICAL REFERENCE
Sound Velocity.
Reading is erratic, with little or
no relation to material level.
True echo too weak or wrong
echo being processed.
Relocate and / or re-aim transducer at
material level or object.
Proceed to Measurement Difficulties.
TECHNICAL REFERENCE
TECHNICAL REFERENCE
TROUBLESHOOTING GUIDE
PL-508 97
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