17. Add-on Controller
90
Dr. A. Kuntze
I
Gutes Wasser mit System
Robert-Bosch-Str. 7a
40668 Meerbusch
+49 (0) 2150-7066-0 / Fax -60
www.kuntze.com
Dosage check
With the parameter dosage check you define how long the instrument may dose with 100% feed rate
without raising alarm. If after that time the measured value still has not reached the set point or at least
the P range, so that the controller output is still 100%, an alarm is issued and the controller is stopped.
This is a safety measure to prevent the release of hazardous chemicals in case of damaged feed lines
– if the dosing does not seem to have any effect, the reason might be that there is a leak somewhere
and the chemicals do not reach the water.
NOTE
Dosage check alarm stops only the corresponding controller/set point. The
other remains active.
NOTE
If you set the time to 0 min, the function is deactivated for the corresponding
controller.
17.5. Activating and deactivating the controller
To activate or deactivate the controller you have to change the operation mode. You can change the
mode in the main menu by pressing the symbol MODE. The symbol changes its design according to
the selected mode.
In the AUTO mode the controller is active and operates the relays and/or current outputs and ultimately
the connected actuators. Manual operation of the relays and current outputs via the test function is not
possible.
In the manual mode the controller is deactivated and you can operate the relays and current outputs
manually via the test function.
In the maintenance mode – HOLD – the controller is deactivated.
NOTE
More information on the operation modes can be found in chapter 5 – Mode.
17.6. Relay display and manual operation of the control relays
For control applications, we advise to use the desktop design “Relay” in the menu SYSTEM.
Below the measured values the configuration and status of the relays
are displayed, and a button appears with which you can change the
operation mode.