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TDR180003 Rev. I
IX. MAINTENANCE
The TDR-3000 does not require maintenance on a regular basis. In some very rare instances, however, the probe
may need a cleaning from deposited material. This must be carried out gently, without damaging the probe. Repairs
during or after the warranty period are carried out exclusively at the manufacturing facility. The equipment sent back
for repairs should be cleaned or neutralized (disinfected) by the user.
X. TROUBLESHOOTING
Problem Fault Solution
GENERAL OPERATION
"Delay out of limits" status
marker on, reading is frozen
The emitted pulse has not been detected. The
gauge will not work until it has been found.
The signal converter may need replacing.
Please contact Bindicator.
"Negative voltage error"
Occurs when there is a problem with the time
base on the HF board.
Contact Bindicator for the corrective
procedure
"VC01 voltage error"
"VC02 voltage error"
"Reprogramming FPGA"
Instrument is not accurate
with a product that has a
high dielectric constant. A
constant offset is observed
when taking measurements.
Tank height is not correct
Check current output and tank height
parameters. If the signal converter
has been replaced, verify that factory
calibration parameters are still the same.
Ask for the Bindicator factory calibration
sheet (if not supplied) and the password
for access to the factory menu.
The TDR-3000 2-wire
indicates an incorrect level
value
The TDR-3000 measures a non-valid reflection
Check the tank for obstructions and
verify that the probe is clean. In the case
the indicated level is close to the nozzle,
increase the detection delay and the
dead zone with the same ratio or increase
the threshold level if the full measurement
range is essential. The threshold level
must be adjusted so that it masks the
disturbances; it also gives enough margin
for detection of the level pulse. Very large
pulses along the measurement signal
(same amplitude as the initial pulse) can
be caused by a probe which is touching
the nozzle or the tank side. Ensure that
no contact is possible.
Instrument is not accurate
when there are two or more
phases in the tank.
The instrument may be incorrectly configured
for this type of application; it is measuring the
interface instead of the level
Contact Bindicator for the corrective
procedure. May also check that there is
a layer of more than 4 in (100 mm) of top
product above the bottom product.
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