Manual Control - Grundfos Oxiperm OCD-164 Montage- Und Betriebsanleitung

7.3.3 Contact input
In the "System choice" menu, switch to the "Contact input" menu
using the [F3] key.
Contact input
Max. flow of H
0000.0 m³/h
The max. flow in the main water line are entered in this menu.
• Use the [F1] key to switch to the variable field "0000.0 m³/h",
and enter the max. flow rate. Enter using the [UP], [DOWN],
[LEFT], [RIGHT] arrow keys analogous to the "Current input"
entry.
• Confirm using [Enter] key.
• Use the [Enter] or [RIGHT] arrow key to switch to the menu:
Contact input
added
Water meter
00.000
pulses/litre
The quantity (ppm) of ClO added and the pulses/litre of the
2
contact water meter are entered in this menu.
• Switch to the variable field "0.00" using the [F1] key.
• Use the [UP] and [DOWN] keys to change the numerical
value, and the arrow [LEFT] and [RIGHT] keys to change the
input field.
• Enter the value to be added.
• Use the [F1] key to switch to the variable field "water meter
00.000", and enter the contacts of the existing contact water
meter.
• Confirm using [Enter] key.
The control for the system can process a max. rate of
Note 50 pulses/sec. If a value greater than 50 pulses/sec.
is calculated, use a different contact water meter.
• Use the [Enter] or [RIGHT] arrow key to switch to the menu:
Contact input
0 g/h = 0.00 pulses/sec.
9 g/h = 8.33 pulses/sec.
The requisite system capacity, as well as the pulses output by the
water meter are now calculated in this menu.
Example:
Default quantity of ClO : 0.3 ppm
2
Main water quantity: 30 m³/h
Contact water meter: 1 pulse/litre
Max. system capacity: 0.3 ppm x 30 m³/h = 9 g/h
1 pulse/litre x 30 m³/h x
Water meter:
1000/3600 = 8.33 pulses/sec.
Select or set the contact water meter in such a way
Note that, at max. system capacity, at least 5 pulses/sec.
are transmitted to the controller.
• Use the [Enter] key to switch to the menu:
Contact input
Flow of H O
2
Max. xxx.x m³/h
Min. xxx.x m³/h
The max. and min. volume of water, which can be supplied with
ClO through the set quantity to be added (ppm), and the system
2
size, are specified in this menu. The system switches off below
the min. water quantity (system capacity < 2.5 %).
28
O
2
>
<
0.00 ppm
>
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1. Confirm using [Enter] key.
Contact input
activated
2. Use the [Enter] key to return to the "Operation mode" menu.
3. Press the [Escape] key twice to return to the main menu.
The preset water flow rate in the "contact or current
input" mode is [m³/h].
Note
Use the [F1] key to select other displayed units: [l/s]
and [%].
Basic load setting
Contact input
0 g/h = 0.00 pulses/sec.
9 g/h = 8.33 pulses/sec.
Use the [F1] key to switch to the variable field 0 g/h, and set a
basic load.
The basic load depends on the system type. It is
bigger than 2.5 % of the system capacity.
Note
For example, for the system type OCD-164-1000 the
basic load is bigger than 0.25 g/h.

7.3.4 Manual control

• Scroll with the arrow [RIGHT] key in the "Operation mode"
menu.
Display page 2
Operation mode
1 Manual control
2 Target value ext.
• Select the "Manual control" mode using the [F1] key.
Manual control
activated
• Use the [Enter] and [Escape] key to return to the "Operation
mode" menu.
When "Manual control" is selected, the installation
Note
can only be started in manual mode.
7.3.5 Target value external
• Scroll with the arrow [RIGHT] key in the "Operation mode"
menu.
Display (page 2)
Operation mode
1 Manual control
2 Target value ext.
The "Target value ext." menu option is only visible, if
Note a bus system has been selected in the "Basic
settings/bus options" menu.
• Select the "Bus control" mode using the [F2] key.
Target value external
activated
• Use the [Enter] and [Escape] key to return to the "Operation
mode" menu.
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