ITC DOSITEC MF Manuel D'installation Et D'entretien page 45

PULSE FUNCTIONING DESCRIPTION 1/n - 1xn - 1xn(M)
EXAMPLE 1xn n=8
Rev 3.0
PROGRAMMING OF THE PULSE FUNCTIONING
1 / n functioning: When the pump receives n pulses from an external watermeter, it makes 1
injection. For every pulse received from watermeter, the display decreases the value of n on the
second row. When this number comes at 0 the pump makes 1 injection.
1 x n functioning: For each impulse received from the watermeter the pump makes n injections
at the dosing frequency programmed in Manual mode. The display shows the value of n
programmed. When the pump receives 1 impulse from watermeter, it starts dosing and the
display decreases n for every injection. When the value of n on the display comes at 0 then the
display writes the programmed value of n and the pump waits for a new impulse from
watermeter.
1 x n(M) functioning: this is the 1xn functioning plus memory function. During the dosing the
pump memorizes the impulses received from the watermeter, and it makes the injections related
to these impulses in immediate succession of the ones in progress. The frequency to which the
injections are done depends on the temporal distance among the last 2 impulses from
watermeter. Shorter is the time between impulses higher is the injection frequence (the
maximum frequency is the one programmed in Manual mode). The display shows the number
n of injections that the pump has to dose.
ESC button to esc the menu and go back in measure with
the Manual functioning just programmed.
The number of injections of the pump per minute depends
on the % programmed. For example: 80% means 120
injections per minute i.e. 150 pulses/min x 0.8 = 120
pulses/min.
In Manual functioning the display shows on the first row
"Man." and the % frequency programmed.
The second row shows the measure of the input current.
PROGRAMMING
Push and quickly release CAL button and scroll the menu
using + and – buttons till the display shows "Function
Type". Push CAL to enter the submenu and then by
pressing + and – button choice " Function Pulse" and
confirm pressing CAL. Push + and – button to choice the
Type of functioning (1/n, 1xn,1xn(M),ppM ), then confirm
pressing CAL.
Programming 1/n, 1xn, 1xn(M):
Modify using + and - the value of n written on the display
and then confirm pressing CAL. Push ESC button to esc
the menu and go back in measure with the Pulse
functioning just programmed.
Cod. 00.009.307 45