Arkal B Series, Руководство по техническому обслуживанию

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SERIES - B
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The two rotary switches on the front panel are used for selecting duration and mode of
flushing. The right switch selects the FLUSHING MODE and the left switch selects the
FLUSHING TIME PER STATION.
•
When the right switch points to the OFF position the controller is switched off and no flushing
will take place. The internal buzzer keeps sounding every 4 seconds to indicate that the
controller is energized.
•
When the right switch points to the DP position the controller will start backflushing only when
the differential pressure indication is received.
•
When the right switch points to MANUAL position a single flushing cycle is initiated.
•
In all the other positions of the right switch, the controller will flush according to the specified
cycle or upon detection of the differential pressure signal, whichever comes first.
•
Changing the position of each of the switches will sound the buzzer. The right switch will
cause a longer beep in the OFF position and at the left switch, the longer beep will be in the 10
SEC position. The longer beep helps to adjust the knobs.
HOW TO READJUST THE KNOBS OF THE ROTARY SWITCHES IN CASE THEY BECOME LOOSE:
1. Keep turning the rotary switch clockwise until you hear the longer beep.
2. At the right switch, tighten the knob with the arrow pointing to OFF.
3. At the left switch, tighten the knob with the arrow pointing to 10 SEC.
FLUSHING TIME PER STATION
FLUSHING MODE