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LRG 1x-6x - Installation & Operating Manual -
819878-00
Bringing into service
Note the setting instructions on page 40 and proceed as follows:
1. Select the parameter “
tC
”.
2. Press and hold the rotary knob until the current value flashes on the display.
3. Set the desired value ( 000.0 – 003.0 ).
4. Save your set value by pressing the rotary knob for approx. 1 second.
Increasing the “tC” value causes the display value to decrease.
Using the “CAL” function
The CAL function allows the cell constants “CF” to be conveniently updated when the electrodes are
increasingly contaminated in operation. For this, the reference measured value of a reliable sample is
made the display value at the operating point. The internal evaluation then automatically calculates the
cell constants “CF” again and corrects it.
ATTENTION
If the “CF” value (cell constant) 003.0 is exceeded, there is a warning message
“CF.Hi”.
■
■
Clean the electrode as a matter of urgency, see page 59.
■
■
Operation continues to be possible.
Note the setting instructions on page 40 and proceed as follows:
1.
Determine a reference measured value for the current conductivity by means of a reliable sample in
the operating point of the system.
2.
Select the parameter “
CAL
”.
After this, the current value of the cell constant “CF” is shown first.
3.
Press and hold the rotary knob until the current conductivity value flashes on the display.
4.
Set the previously determined reference value (conductivity from the comparative sample) as the new
display value.
5.
Save your set value by pressing the rotary knob for approx. 1 second.
An adjustment to the “CF” to values over 005.0 is cancelled. “Quit”
then appears on the display and the display reverts to the menu item “cal”.
Now, it is compulsory to clean the electrodes as described on pages 58 and 59.
