Manual OPTISENS AAM 1050
OPTISENS AAM 1050
14
6.4
Automatic Sensor Cleaning ASR
Main menu
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Basic settings
Basic settings
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Cleaning
Cleaning
Cleaning
1 / day
Turn-on delay
6.0 h
The automatic sensor cleaning can be activated in Basic settings under “Cleaning”. You can choose between
one or two times cleaning per day.
The patented Automatic Sensor Cleaning ASR prevents staining and passivating coatings and keeps the
surface of metal sensors clean throughout the measurement.
The cleaning is an electrochemical one: in adjustable intervals the instrument applies a strong voltage to the
electrode to produce Hydrogen and Oxygen from the surrounding water. This method needs no addition of
chemicals. Both Hydrogen and Oxygen are ORP active substances that will destroy inorganic coatings such
as rust, manganese oxide, or lime, and organic coatings such as fat or grease.
Activate the cleaning after completing the set-up to conserve the clean metal surface of the new sensor
during subsequent measurements.
The cleaning process takes about 30 seconds. During this time measurement is not possible, and after
cleaning the sensor needs some time for polarisation. Therefore the display and the analog output will show
the last measured value for five minutes, and the message „cleaning in progress“ is displayed. As a safety
measure, attempts to calibrate within these five minutes are ignored.
Activation and timing
The cleaning is activated by setting the cleaning function from 0/day (never) to 1/day (every 24h) or 2/day
(every 12 h). The first cleaning starts as soon as the function is activated, and subsequent cleanings are
carried out after 24h, or 12h, according to settings.
NOTE
Often it is convenient to carry out the cleaning during the night. Therefore we have added a delay function
that enables you to set the time for the cleaning to a later hour. If, for example, you select 1 cleaning per day
at 10am and set the delay time to 12h, cleaning takes place every day at 10pm.
NOTE
The device does not contain a real-time clock. Therefore all time settings have to be repeated after power
failure or disconnection of the power supply.
NOTE
Whenever the instrument indicates „no water“, cleaning is not carried out.
NOTE
If you set 0 under cleaning per day, the automatic sensor cleaning is disabled.
6.5
Averaging
Main menu
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Basic settings
Basic settings
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Averaging
Averaging.
Averaging.
ON
