
Rev 1.0 Cod. 00.009.038
19
DUAL MESSAGES
IT WARNS MEANS THAT THE CALIBRATION IS IMPOSSIBLE. IT IS
NECESSARY TO DO IT AGAIN.
If you read the same message again after you repeated the calibration:
a) Check that the buffer solution is not polluted or contaminated (change it in this
case).
b) Check that the buffer solution selected on the display during the calibration is
the value of the one ractually used.
c) The pH probe could not be working well (change it in this case)
TIME ALARM
WHAT IS IT? The Time alarm
is expressed in units (0-120unit) of dosage. One unit is equivalent to 150 injections of
chemical. The units counting starts from 0 when the pump starts dosing after the power on, it increases during dosing, it
stops during level alarm and stand_by state, it is reset when the power is off, when the measure reaches the setpoint
and during the flow alarm. When the counting reaches the value memorized in Time alarm, the system goes in Time
Alarm state
1) The dosing stops
2) Green led On blinks
3) the display shows
:“Tal”
and the measure on the second line.
(See figure here above).
Push STB button to bring back the pump in the Operating mode and to reset the count of Time Alarm
which re-starts with the dosing.
TIME ALARM EDITING
Push
CAL
3 times and scroll the menu by + and - buttons until the
display shows”
pH Alarm Time
”. Push
CAL
to enter and choose
the alarm time units from 0 to 120 using + and – buttons.
Push
CAL
to confirm and
ESC
to go back to measure
Calculation example of the Alarm Time if you wish to inject 2
liters(=2000cc) of maximum product at backpressure of the
pump nameplate.
NOTE: The time alarm has no effect on Manual mode
operation
MOD
l/h
1 unit
Time Alarm=
2000cc :(cc_unit)
DUAL-PH_5liters
5 83.3cc
24 unit
DUAL-CL 10liters 10 166.6cc
12 unit
FLOWRATE VISUALIZATION
During the functionnig it is possible to visualize the actual measures or the actual dosing flowrates simply pushing the
ESC
button. You can change the visualization pushing again
ESC
. (See the figure above)
Содержание ME-DUAL-PH/CL
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