Proportional Mode F01 = 3
With the proportional mode, the economiser will work in full autonomy, initially setting
the dP_Start threshold (F08), activation time (F02) and pause time (F03).
When the Start Cleaning threshold is exceeded, the solenoid valves are automatically
activated in sequence. If the dP threshold drops below 15% at the end of an entire cycle
of pulses of the connected solenoid valves, the washing is suspended until pressure
returns to a value above the Start Cleaning dP value. If the dP value does not drop below
15% of the Start Cleaning threshold, the frequency of the cycle time is automatically
reduced in proportion with each entire cycle of pulses of the connected solenoid valves,
until a minimum cycle time between solenoid valves reaches 10 seconds. The minimum
threshold of 10 seconds has been chosen so as not to hamper the dispensing of air by
the compressor connected to the filter.
Cleaning Function With Fan Off (PCC)
This function allows to carry out one or more cleaning cycles (the number of cycles is
defined by F13) when the fan is off. The on or off state of the fan may be determined by
the state of the contacts 12-13 (contacts open = fan off) if F11=0, or may be determined
automatically (with F11=1) when the dP pressure drops under the threshold defined in
F12. The pulse time of the valves will always be that defined in F02, while the pause time
in this case is defined in F14.
The display alternately shows the number of the valve activated and the word PCC.
Number Of Output Selection
The number of outputs (solenoid valves) on which the economiser will run the cleaning
cycle can be selected. Cleaning will be carried out in order from the first to the last solenoid
valve. The valves can be adjusted by the F04 function.
Precoating Function (F18=1)
This function is used to carry out precoating. Precoating is a filtering element treatment
carried out with precoating powder. Washing and manual output activation is suspended
during precoating until the precoating thresholds defined in F19 is reached.
The dP value and the message PC (precoating) will appear alternatively on the display.
dP Zero Calibration (F07)
This function is used to reset dP reading with the fan off.
Increase or decrease the value shown by pressing “+” and “-” as required. This value will
be subtracted from the value read by the dP sensor.
dP Sensor Self-Calibration
This function allows to reset dP reading with the fan off automatically.
Hold “SET” and “OK” pressed at the same time with the device off. The message “CAL” will
appear after the start-up test. Release the buttons. The unit will go back to normal state
after a few instants. Automatic calibration is complete.
Fuse
A fuse which can be reset in case of need is located near the power terminal board. Use a
delayed fuse 5x20mm.
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