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Default value
Default setting
similar!
®
ProMinent
DANGER
Adequate disinfection or water treatment can only be ensured if the safety threshold has
been set correctly.
NOTE
The safety threshold must be below the warning threshold. It is not possible to set it
above the warning threshold. Please refer to the separate operating instructions for
special applications that require the sensor signal to be displayed in W/m
4.3.8.1
Setting the safety threshold in operating mode "control on"
Safety threshold
-xx [%]
below reference value
The safety threshold is normally set at 10 percentage points – 10 [%] below the reference value
(operating mode "control on")
E.g.: with a reference value of 60 % and a safety threshold of -10 [%] the system will shut
down if a probe signal falls to 50 %.
4.3.9
Setting the warning threshold in operating mode "control off"
60 %
Warning threshold
If the UVC output falls so low that the sensor signal falls below the warning threshold, a warning
is issued. In order to prevent the signal from falling below the safety threshold, clean the lamp's
protective tube or replace the lamp and/or improve the quality of the water using a suitable
treatment method. A flashing arrow on the display indicates that the signal has fallen below the
warning threshold.
An indicator can be connected to the WARNING THRESHOLD relay of the control system. The
relay closes when the signal falls below the warning threshold.
The warning threshold is normally set at 60 % but it can be changed for special applications.
60 %
NOTE
The warning threshold must be above the safety threshold. It is not possible to set it
below the safety threshold. Please refer to the separate operating instructions for
special applications that require the sensor signal to be displayed in W/m
4.3.9.1
Setting the warning threshold in operating mode "control on"
The warning threshold is normally set at 5 percentage points -5 [%] below the reference value
(operating mode "control on").
E.g.: with a reference value of 60 % and a warning threshold of -5 [%] the system will issue a
warning if a probe signal falls to 55 %.
Controller
2
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2
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