4.5.3 System connections
•
Dilution water line at the solenoid valve (26)
•
Tubing for suction lances (5, 6)
•
ClO
line from the dosing pump to the injection unit at the main
2
line or to the external batch tank (14)
•
Tube at the drain cock of the batch tank (8).
4.5.4 Measuring cell connections
The measuring cell is hydraulically connected to the main line.
After dosing, the chlorine dioxide concentration, temperature and
pH/ORP value of the sample water are measured in the
measuring cell. The measuring cell has connections for the
following:
•
3/8" ID x 1/2" OD tube from the sample-water extraction
device to the measuring cell
•
3/8" ID x 1/2" OD tube from the measuring cell to the
sample-water drain.
For more detailed information, see the installation and operating
instructions for the Grundfos AQC-D11 measuring cell.
4.6 Power supply connections and electronic
connections
The Oxiperm Pro OCD-162 is equipped with an electronic
controller. The controller has connections for the following:
•
power supply cable to the main switch
•
cable from the flow meter or contact water meter
•
cable from external batch tank to level control, if applicable
•
cables for measuring cell AQC-D11 or AQC-D6, if applicable:
– measuring electrode
– sample-water flow sensor
– Pt100 temperature sensor
– pH or ORP electrode
– cleaning motor.
For additional connections, see the separate Service Instructions.
4.7 Operation modes
During startup, the Oxiperm Pro OCD-162 system is programmed
to meet the application control requirements. Once powered on,
automatic ClO
production is set via the plain text menu controls.
2
Two operation modes are available:
•
"Internal batch tank" mode: Chlorine dioxide solution is
generated in the internal batch tank, and dosed into the line
system, until the batch tank is empty. There are two ways of
refilling the batch tank:
– First method "1-20": You determine how many times the
batch tank is refilled by choosing a number in the range of 1
to 20.
– Second method "0 = continuous": The batch tank is refilled
continuously.
•
"External batch tank" mode: Chlorine dioxide solution is
generated in the internal reaction tank, and fed into an
external batch tank with level controls for storage.
After emptying the external batch tank, ClO
restarted in a continuous process.
Dosing is controlled automatically by the controller. In manual
operation, the controller can be switched off.
16
4.8 Display and control elements
Fig. 7
Button or LED
Button [Esc]
Button
Button
Button [OK]
Button [Cal]
Button [Man]
LED "Alarm"
LED "Caution"
LED "Cal"
LED "Man"
4.8.1 Displays
After switching on the system, the following display appears:
Fig. 8
Press [OK] to access the "main menu":
main menu
process
controller ClO2
alarm
service
setup
production is
2
maintenance
Display and control elements
Function
Cancels command, exits menu
Selects the previous menu item, or sets a
[Up]
higher numerical value
Selects the next menu item, or sets a
[Down]
lower numerical value
Confirms the menu selection
Calibration
Manual operation
Alarm (red)
Warning (yellow)
Calibration (yellow)
Manual operation (yellow)
1
2
3
5 4
Starting the system