Endress+Hauser Turbimax W CUS65, Руководство по эксплуатации

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Commissioning Turbimax W CUS65
12 Hauser
5 Commissioning
5.1 Function check
Before first commissioning, check if:
• the sensor is correctly installed
• the electrical connection is correct.
#
Warning!
Danger of medium leaking off
Before applying compressed air to an assembly with cleaning facility, make sure the connections are
correctly fitted. Otherwise, the assembly may not be inserted into the process.
5.2 Calibration
The sensor CUS65-D is calibrated in the factory acc. to standard procedures (ISO 7027/EN 27027).
The sensor zero point adjustment relates to almost particle-free water (particles < 0.2
μ m).
The versions CUS65-A/B/C/E are factory-calibrated to SIO
2
as function test.
When commissioning these sensors, you must calibrate them using the medium for your
application, e.g. activated sludge.
Calibration modes:
• Two-point-calibration (normal case)
• Multi-point-calibration (recommended for CUS65-A)
!
Note!
• CUS65-E is designated for thickened sludge. To achieve representative measuring results, you
must use a sludge concentration of at least 1% for the first calibration point.
• To obtain reliable calibration results, record the raw signal of the sensor (process measurement)
over a defined period (e.g. a week) and relate the signals to corresponding laboratory
measurements.
• Follow the calibration instructions in the Operating Instructions of the transmitter.
6 Maintenance
Contamination of the sensor can impact the measurement up to the point that measurement no
longer functions.
The sensor must be cleaned regularly to ensure reliable measurement. The frequency and intensity
of the cleaning depend on the medium.
The sensor must be cleaned:
• prior to every calibration
• if necessary, regularly during the operation
• prior to returning the sensor for repair.
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Caution!
After cleaning, rinse the sensor with water.
Type of contamination Cleaning measures
Lime deposits Immerse the sensor in 1-5 % hydrochloric acid (a few
minutes).
Dirt particles on the optics Mechanically clean the sensor head with water and a
suitable brush or sponge.