E10160-200722
FOP
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important to reinstall the dust cap on the tip of the connector after reading the sensor if it
is not connected permanently to a fiber optic datalogger.
IT IS A GOOD PRACTICE TO ALWAYS CLEAN THE TRANSDUCER CONNECTOR
BEFORE MATING IT TO THE READOUT UNIT
.
Wiping the end with low lint tissue such as Kimwipes or lens cleaning tissues is a simple
and easy way to clean transducer connectors. By keeping your transducer connectors
clean you will also prevent the contamination of the input connector of the readout unit.
However, we recommend cleaning the input connector of the readout unit also
occasionally. Use the specially designed 2.5-mm Mini Foam Swab for cleaning the input
connector. Contact Roctest if you need a cleaning kit.
We also recommend to do a visual inspection of the fiber optic connector using a portable
optical microscope to inspect for dirt and damage (for more information see the following
link
https://www.thefoa.org/tech/ref/testing/test/scope.html
5.2 Fiber optic piezometers troubleshooting
Diagnostic and error messages
When you take a reading with a fiber optic piezometers and a readout unit we recommend
to complete also a diagnostic of the sensor using the diagnostic function.
With the diagnostic function (
DIAG)
the user can obtain useful information for evaluating
the performances for both the readout unit and the sensor. The diagnostic information is:
the light intensity (in Volts), the signal (in Volts), the battery remaining capacity (%), and
the memory in use (%). By comparing the diagnostic information with the following
evaluation table, the user can make a diagnosis of its setup measurement.
DIAGNOSTIC:
Defective
Poor
Normal
Light
< 0.4 V
0.4
– 1.0 V
> 1.0 V
Signal
< 0.3 V
0.3
– 1.5 V
> 1.5 V
Battery
If < 25 %, batteries need to be recharged
Memory
0 - 100 % of memory in use
The portable readout unit has an auto-diagnosis feature that informs the user in case of
defective or noisy measurement conditions. Depending on the conditions, the readout will
display different messages:
MESSAGE
TYPE AND DESCRIPTION
POSSIBLE CAUSE & REMEDIES
« MEMORY
LOST »
ERROR
The content of the RAM
memory has been erased.
The RAM memory has been corrupted so
the conditioner is automatically reset with
the factory default settings. Contact factory
if that problem persists.
« L.Bat »
INFORMATION
Battery remaining capacity
Recharge the batteries.