Turb 2000 Series Additional features and options
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7 Additional features and options
7.1 Ultrasonic cleaning (Turb 2020 and 2120)
This factory installed option is used to continuously keep clean the flow through cuvette. It is not
intended to clean cuvettes that are already dirty, or replace manual cleaning entirely. The system will
increase the time between cleanings dramatically. Please note that the system requires the use of a
special cuvette. This cuvette must be used for the system to operate correctly.
The system works by sending an ultrasonic frequency through spring connections into a piezo
transducer bonded to the bottom of a flow through cuvette (refer to figure 6).
The system can detect that an incorrect cuvette is installed, an error has occurred in the transducer or
the transducer is not making contact with the spring connections. This error is indicated by CLN being
posted to the lower screen. Since this is an error condition, this may affect the 4-20 mA and alarms
depending in the setting of the ERLV (4-20 mA) and if an alarm is set up to Error.
If the correct cuvette is installed, and the error is still posted, try rotating the flow through unit slightly to
improve the connection. If this fails to work, the cuvette may have to be replaced (see section 11
R
EPLACEMENT PARTS AND ACCESSORIES). The detection for this cuvette only operates in AUTO mode. If
the system is operating correctly AUTO will flash on the display.
Note
The cuvette must be completely dry before it is inserted into the sensor. If there is any
visible moisture present on the cuvette or transducer, there is a great risk of damaging the
sensor electronics and the transducer. Be sure to clean and dry the cuvette completely just
before inserting it into the sensor.
The vapor purge system can NOT remove large droplets of water, only residual moisture.
Note
For the vapor purge system to function properly, all instrument seals must be maintained
and the desiccant pack must be in good condition (no DESC display).
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Figure 6: Operational parts of the ultrasonic cleaning system
1 Flow-through cuvette
2 Ultrasound transducer
3 Sensor (top view)
4 Ultrasonic spring connections
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