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Functions of the operating and display elements
12
Operating elements/Function keys
All operating elements/function keys are assigned twice. The respec-
tive function is triggered by a short or long (min. 2 seconds) key
press.
Key 1
Short key press: Starts an analysis (manual start),
(manual)
the respective LED flashes.
Long key press: Switches the dosing pump for bleed-
ing the pipes on/off. The LED illuminates while the
pump is running.
Key 2
Short key press*: Switches the internal flush valve
(flushing)
on/off, the respective LED flashes as long as the
valve is open.
Long key press*: Activates an external flush valve via
relay 1 (on/off). The LED above key 2 and LED K1
illuminate as long as the external valve is activated.
Key 3
Short key press: Switches the standby function
(pause)
on/off. The respective LED flashes if standby is ac-
tive.
Long key press: The respective LED displays wheth-
er operation is possible for longer than 72 h (opera-
tion without supervision).
Key 4 (horn)
Short key press: Acknowledges current er-
rors/alarms.
Long key press (min. 5 seconds): Sets the indicator
display from 0% to 100% (the LEDs 10% to 90%
illuminate).
Note: It is not possible to enter any indicator level.
* only in standby mode
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