ProMinent DULCOMETER D1C Operating Instructions Manual page 17

Measured variable chlorine dioxide
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Complete Operating Menu / Description
Timer relay
on
off
IMPORTANT
The timer will reset in the event of a power failure.
At the end of the (timer) cycle time the DULCOMETER
"t on" (timer). "Pause" interrupts the timer.
When the clock is shown in the LC display the timer can be reset to the start of the cycle at precisely this
point using the enter button.
The % figure in the LC display indicates the progress of the current cycle.
Timer relays may be used, e.g. for shock metering or sensor cleaning.
Solenoid
valve
on
off
on
off
The switching time of the DULCOMETER
"min. time" (smallest permitted operating factor of the connected device).
The control variable determines the ratio t
The "min. time" influences the switching times in two situations:
a) theoretical switching time < min. time:
Cycle
min. time
on
off
Cycle
on
off
®
The DULCOMETER
switching times exceeds the "min. time". Then the DULCOMETER
total time.
Cycle
t
on
Cycle
t
on
Cycle
t
on
on
Cycle
Cycle
min. time
D1C does not switch for a certain number of cycles until the sum of the theoretical
®
D1C closes the assigned relay for the duration of
min. time
®
D1C (solenoid valve) depends on the control variable and the
/cycle and thus the switching times (see fig. above).
Cycle
t
Cycle
t
t
Control
variable: 80 %
t
on
= 0.80
Cycle
t
Control
variable: 50 %
t
on
= 0.50
Cycle
t
theoretical
actual
®
D1C switches for the duration of this
17

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