Endress+Hauser Turbimax CUS52D, Руководство по эксплуатации

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Turbimax CUS52D Operation
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x
y
a
b
A0039330
 34 Principle of an offset
x Measured value
y Target sample value
a Factory calibration
b Offset calibration
8.1.3 Cyclic cleaning
For cyclic cleaning in open basins or channels, compressed air is the most suitable option.
The cleaning unit is either supplied or can be retrofitted, and is attached to the sensor
head. The following settings are recommended for the cleaning unit:
Type of fouling Cleaning interval Cleaning duration
Severe fouling with rapid buildup of deposits 5 minutes 10 seconds
Low risk of fouling 10 minutes 10 seconds
The CYR52 ultrasonic cleaning unit is suitable for cyclic cleaning in pipes or assemblies.
The cleaning unit (which can also be retrofitted) can be mounted on the CUA252, CUA262
flow assemblies or on any customer pipes.
The following cleaning settings are recommended to prevent the ultrasonic transducer
from overheating:
• Cleaning duration: maximum 5 seconds
• Cleaning interval: minimum 5 minutes
8.1.4 Signal filter
The sensor is fitted with an internal signal filter function in order to adapt the
measurement flexibly to different measuring requirements. Turbidity measurements based
on the principle of scattered light may have a low signal-to-noise ratio. In addition,
disturbances can occur as a result of air bubbles or fouling, for example.
However, a high level of damping affects the sensitivity of the measured value required in
applications.
Measured value filter