CPA EL 10 pH-rx Manual De Regulatión página 15

PROGRAMMING AND VISUALIZATION OF PROPORTIONAL FUNCTIONING IN Rx (mV) TYPE
During the programming if you do not push any button (+,-, CAL) for more than 60 seconds, the
pump will get out of programming keeping the data stored until that moment.
Rx (mV) PROBE CALIBRATION
Attention,
Be sure that the buffer solution used in calibration matches always the indicated value, and that they're not polluted.
BUFFER 468mV
MESSAGES FROM THE PUMP
Rev 1.0
Range of proportionality = 100mV
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 Prop" and confirm pressing CAL.
The display will show the value of setpoint stored in the last programming. Modify it
by pressing + and – button and confirm the choice pressing CAL.
The display will show the direction of dosing Oxid or Red stored in the last
programming. Choice the direction by + or – button and confirm pressing CAL.
Select Red if you want the pump to inject for mV values greater than Setpoint.
Select Oxid if you want the pump to inject for values of mV lower than Setpoint.
The display will show the % of maximum frequency (150pulses/minute) stored in
the last programming. Modify it by pressing + and – button and confirm the choice
pressing CAL. Push ESC button to esc the menu and go back in measure with the
Proportional functioning just programmed.
In the Proportional functioning the display shows on the first row "Prop" and the
actual % frequency of dosing that the pump is doing respect to the % frequency
programmed.
On the second row the display writes the measure.
THIS MESSAGE MEANS THAT THE CALIBRATION IS IMPOSSIBLE AND HAS TO BE
DONE AGAIN.
If after the calibration repetition the display shows again this message:
a) Check that the buffer solution is not polluted (eventually replace it).
b) Check that the buffer solution selected on the display during the calibration is the value of
the one really used.
c) The pH probe could not be working well (replace it)
Cod. 00.008.254
OFFSET CALIBRATION
Dip the probe in the 468mV buffer solution and wait
for the stabilization of the measure on the display.
Push and quickly release CAL button and then scroll
the menu till the display shows "Electro. Calibr."
Push CAL to enter the submenu and then the button –
to do the OFFSET calibration of the probe. If it is
necessary you can modify the value of the buffer
solution shown in the second row of the display by
buttons + or -. Push CAL to confirm.
If the display shows the message "Imposs. Calibr."
the probe calibration is not saved. Read the following
paragraph named "MESSAGES FROM THE PUMP".
If no error message appears the calibration has been
performed.
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