In the
‘Level error’
sub-menu, you can select for a two-stage level
switch whether the pump switches to
‘Error’
with a
‘Break contact’
or
‘Make contact’
input contact signal.
11.2.8.8.2 Continuous
Calibrate
The ProMinent suction lance with continuous level measurement
can measure the liquid level in a 30-litre canister with 5 % preci‐
sion. The relevant secondary display of the gamma/ X indicates the
liquid level, or the liquid level can be reported to the control panel
by bus.
You can calibrate continuous level measurement in the
‘Calibrate’
sub-menu.
You can calibrate the
‘electrodes’
in this sub-menu – this is a step
that is not normally necessary. If the feed chemical has a dielectric
constant ε
r
below 30, you can try to get level measurement run‐
ning.
1. Select
‘Electrodes’
under
‘Calibrate’
.
ð
The
‘Calibration "Air”’
display appears.
2. Remove the level gauge from the feed chemical.
3. Press the
[dial]
.
ð
The
‘Calibration "Medium”’
display appears.
4. Immerse the level measurement in the feed chemical up to
the holding claws.
5. Press the
[dial]
.
ð
The calibration process is completed.
6. Check whether the level measurement is working as
expected.
Use
‘Percent level’
in this sub-menu to recalibrate the level meas‐
urement if you wish to work with another maximum liquid level.
1. Select
‘Percent level’
under
‘Calibrate’
.
ð
The
‘Calib. "Liquid level”’
display appears.
2. Immerse the level measurement in the feed chemical.
3. Use the
[dial]
to set the required percentage for this level and
press the
[dial]
.
ð
The application switches back to the Start menu.
4. Check whether the level measurement is working as
expected.
Configuration
You need to enter the warning thresholds for continuous level
measurement and the required unit in the
‘Configure’
sub-menu.
1. Enter the
‘Warning Level Niveau’
as a % and press the
[dial]
.
2. Enter the
‘Fault Level Niveau’
as a % and press the
[dial]
.
Electrodes
Perc. liquid level
Set up /
‘Menu’
78
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