Manual Mode; Control Examples - Tebas Efka270 Installation And Maintenance Instructions Manual

Redox Calibration
1) Rinse the electrode with distilled water, then immerse it in the calibration solution (e.g. 220 mV).
2) Press the CAL key to enter the menu mode and use the  /
 keys to select the option "IN2 CALIBRATION".
3) Press CAL again to confirm.
4) Press  to select the OFFSET calibration and confirm by
pressing CAL.
5) The system automatically recognizes and displays the
solution value (220 mV).
6) If necessary, use the  /  keys to adjust the calibration value.
7) Press CAL to confirm the calibration, or ESC to quit the procedure and keep the previous calibration.
Notes
 If the system does not automatically recognize the buffers or the "Calibration Impossible" error occurs, it can be due to:
a) calibration solution contaminated or expired
b) electrode faulty or dead
c) connection cable or connector damaged
 During normal operation, it is possible to view the offset value by pressing , to check the electrode status.
The ideal offset value is close to zero. When this value is close to the max / min limits (-100mV ... +100mV), the electrode
is contaminated or dead.

Manual Mode

At any time you can force a manual working mode, useful for a temporary use of the system. If a password has been set
(see parameter P16), the system will require it to enable the access to this feature.
Press the CAL key to enter the menu mode and use the  /
1)
 keys to select the option "MANUAL FUNC.1" (or "MANUAL
FUNC.2")
2) Press CAL again to confirm
3) Similarly proceed for pump 2
4) Press ESC at any time to exit the manual mode
Warning! In manual mode only one pump at a time can be activated.

CONTROL EXAMPLES

Typical application in swimming pool control: acidification when pH exceeds the pH value of 7.30.
Refer to the "List of configuration parameters" and set:
P01  ON/OFF working mode for pump 1
-
P02  set-point 7.30 pH
-
P04  dosage direction "ACIDIFICATION"
-
- P11  alarm pump 1 = 60 minutes
Typical application in swimming pool control: chlorination when redox potential falls below 680 mV. Refer to the "List of
configuration parameters" and set:
P06  PROPORTIONAL working mode (recommended for an easier stabilisation)
-
P07  set-point 680 mV
-
P09  dosage direction "CHLORINATION"
-
P10  if the quantity of the product to be injected is not known, it is recommended to start with a time base of 60
-
seconds (default), and if the chlorination process would last too long, decrease the time base gradually until a
conditioning time of approx. 30-45 minutes
P12  alarm pump 2 = 60 minutes
-
Common settings for the two examples described above:
- P13  start-up delay of 15 minutes (average time required for the polarization of redox electrodes)
- P16  protection PASSWORD to prevent unauthorized access
I N 2 C A L I B R A T .

O F F S E T
I N 2 C A L I B R A T .
C A L > Y E S
M A N U A L F U N C .
C A L > Y E S
M A N U A L P U M P
O F F 0 i / m i n
R X
R X
E S C > N O
P 1
E S C > N O
1
24