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Capacitive electrodes EL 4 … 20 mA - compact
Communication
You can determine the adjustments for data
transmission.
Options
In this function, programm adjustments such as
activate sound, backup etc. are available.
Instrument data
Display Diagnostics
Instrument data
Configuration Services
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Parameter adjustment
Under the menu point instrument data you can
choose the function:
• Parameter adjustment.
Parameter adjustment
The following functions are available:
- adjustment
- conditioning
- outputs
- sensor optimization
- additional functions
Adjustment - Min./Max. adjustment
With this function you can adjust the electrode
(min./max. adjustment).
You can choose if you want to carry out the
adjustment with or without medium.
Adjustment with medium
Min. adjustment
There must be min. level in the vessel. When
you push the button
Save,
the current value for
the actual min. level is set to 4 mA. The read out
of the sensor value in pF is also possible.
You can also coordinate a certain percentage
value to a known level.
When you know e.g. that your vessel is filled to
10 %, this can be entered under min.
adjustment.
Max. adjustment
There must be max. level in the vessel. When
you push the button
Save,
the current value for
the actual max. level is set to 20 mA. The
sensor value can be also read out in pF.
You can also coordinate a certain percentage
value to a known level.
The difference between min. and max.
adjustment should be at least 20% or 3,2 mA.
Adjustment without medium (dry
adjustment)
By means of the adjustment software VVO you
can carry out under certain requirements an
adjustment without medium.
The requirements for an adjustment in m are:
In conductive medium:
- electrode is fully insulated
For conductivity the following criteria are valid:
Mode 1 (90
°
) Mode 2 (45
°
)
with conc.tube
> 50
µ
S/cm >150
µ
S/cm
without conc. tube >100
µ
S/cm >300
µ
S/cm
In non-conductive medium:
- concentric tube electrode
- you know the DK-value of the medium
Set-up
