Programming Instructions

Programming screen « INSTALLATION » Page 28/74
 Delete & Save.
- See (On/Off) Control dosing mode
Dosing range:
The percentage of the dosing range corresponds to the percentage of the relay dosing need. This
function can be activated for example if you use two relays for dosing a single parameter. It’s possible to
program the first relay for a holding with for example an active dosage between 30 and 100% and the
second for a more powerful dosage between 30 and 100%.
It’s therefore possible to use a low flow pump for maintaining dosing and one with a higher flow
rate for more powerful dosing when the need is great.
For a programmed range of 0 to 50%, the relay power will vary from 0 to 100% between these two
bounds. When the dosage need is 50% the relay will be at 100% of its dosage power.
Example with dosing hold option disabled on relay 1
c) Relay outputs in PFM (Pulse Frequency Modulation) dosing mode [1531]
 PO1 Function Dosing
- See (On/Off) Control dosing mode
 Assignment pH E01
- See (On/Off) Control dosing mode
 Mode PFM (Pulse Frequency Modulation)
- Dosing mode selection, on this selection button we find the selected mode information (PFM (Pulse
Frequency Modulation)). Press to change it.
Relay 1 at 100%
Programmed
dosing need
Dosing range relay 1
Programmed from 0 to 50%
Dosing range relay 2
Programmed from 50 to 100%
Relay
2
at
100%
100%
0% 50% 100%
% Relay
Setting output relay
FO1 Function Dosing
Assignment pH E01
Mode:
PFM (Pulse Frequency Mod)
Dosage direction : FALLING
PFM frequency :
pulse/min
Minimum : %
Maximum : %
Keep active after
Dosing range