Dupla pH-Control Pro User Instructions
Dohse Aquaristik GmbH & Co. KG
www.dupla.com
Using instruction
pH-Control Pro
Item no. 80286 · Status: 03/2013 ·Version: 1.1
Dohse Aquaristik GmbH & Co. KG · www.dohse-aquaristik.com
Table of contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1
2. Description of the basic functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3. Description of the programmable functions . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1.1 Time setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2.1 pH set point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2.2 CO
3.2.3 pH alarm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2.4 Deactivation/activation of the audible pH alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2.5 Calibration pH electrode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2.6 Calibration reminder function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3.1 Setting the timer control mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3.2 Programming turn-on and turn-off times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3.3 Programming interval control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4. Quick Start Guide to Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5. Programming Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.1.1 Time setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.2.1 pH set pointprogramming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.2.2 CO
5.2.3 pH alarm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.2.4 Deactivation/activation of the audible pH alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.2.5 pH electrode calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.2.6 Calibration reminder function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.3.1 Setting the timer control mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.3.2 Programming turn-on and turn-off times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.3.3 Programming interval control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6. Reset to factory presetting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
7. Factory presetting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
8. Sources of faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
9. Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
10. EC declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2
Control units and connection strips. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2
Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3
Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4
Assembly advice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1
Function monitoring of external devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2
Safety shutdown during programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3
Safeguard function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.4
Interval reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.5
Return function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.6
Memory function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.7
Malfunction displaying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1
Clock programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2
pH programming. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
night function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2
3.3
Timer programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.4
Manual activation/deactivation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5
Display light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1
Clock programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2
pH programming. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
night function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2
5.3
Timer programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.4
Manual activation/deactivation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.5
Display light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
4
5
5
7
7
9
10
14
17
17
1. Introduction
1.1 Control unit and connection strip
Connection strip
LED
Slot 1 for pH value programming
Slot 2 for programming the timer function
Connecting cable
Fastening rail
Set of screws for fastening rail
Cable tie
Control unit
BNC connector
3
1.2 Display
pH
pH
pH
= Displaying measured pH
pH
= Displaying measured Temp2 or Time
= Displaying set pH
= Displaying set Temp or Time
= Displaying current time
= Symbol for pH (slot 1)
pH
= Symbol for Timer (slot 2)
= Symbol for calibration
= Symbol for Set values
= Symbol for CO
= Symbol for alert (flashes simultaneously with
1.3 Safety instructions
The Dupla pH-Control Pro is designed exclusively for use in enclosed rooms. All electronic components of the device
must only be operated whilst they are free from defects. Should the mains supply be damaged, please please return it
to your dealer for repair. Continued operation of the device may cause fatal injury from electric shock. Ensure that the
control unit and connection strip do not come into contact with water.
pH
supply
2
or flashes simultaneously with
pH
symbol in case for alert
CAL
to remember pH electrode calibration)
Technical products must only be operated as supplied. Electronic components must not be modified in any way, and
the leads must not be shortened. Covers or housings must not be opened. If the product is damaged cease useage or
shut down immediatly by pulling the mains plug.
4
1.4 Assembly advice
Control units
The reverse side of the control unit has recesses that are used to lock the fastening rail which is fixed to the wall or
the aquarium cabinet with the screw set. The cable to the control unit has a USB connector so that holes of control
unit dimensions do not need to be sawn out of the terrarium cabinet. The USB connector is not designed for a computer connection. The control unit has a 2 metre cable which permits installation outside the aquarium cabinet as well
as an unobstructed view of all values and status modes.
Connection strips
The connection strip should be screwed to the back or side panel inside the aquarium cabinet to ensure that there is
no contact with the unit in the event of water leakage.
pH-Eletrode
The Dupla pH-Control Pro system is equipped with a BNC connector for pH electrodes.
2. Description of the basic functions
2.1 Function monitoring of external devices
The housing is fitted with LEDs. In operating mode this indicates the active control of the external device.
2.2 Safety shutdown during programming
When entering into the programming mode, both slots are deactivated for safety reasons.
2.3 Safeguard function
To protect electronic components, a delay of 60 seconds is set between 2 switching states before the respective slot
becomes active again.
2.4 Interval reset
Irrespective of the time of day, all programmed intervals start when the device is switched on or the menu is quit.
2.5 Return function
The Dupla pH-Control Pro automatically returns to the operating mode when no button has been pressed for a period
of 90 seconds while in the programming mode.
2.6 Memory function
To safeguard against loss of data in the event of a power failure, the Dupla pH-Control Pro stores all set values. The
unit will continue to calculate the time for up to five hours after such an event, so the clock does not need to be reset
after brief power failures.
2.7 Malfunction displaying
In the event of a pH-Electrode defect
2 is indicated by E05.
will be displayed. A programming error in the timer programming for slot
5
3. Description of the programmable functions
Slot 1 can only be programmed for pH control. Slot 2 can only be programmed for timer switch. In programming
mode, the functions can be configured in the following sequence.
3.1 Clock programming
3.1.1 Time setting
The factory presets the time at
. The time setting however is not cleared during a resetting procedure.
3.2 pH programming
3.2.1 pH set point
The pH set point can be adjusted within the limits of 4.0 - 9.9. If the measured pH value is outside the display range,
values lower than 4.0 are displayed as
the pH channel is switched off. The pH-controlled CO2 fertilisation is carried out through permanent measuring by a
connected Dupla pH electrode and switching of a connected Dupla CO2 magnetic valve with a switch hysteresis (the
difference between the switching point and the triggering point) of 0.1 pH and a control accuracy is +/- 0.1. Switch
hystereris (the difference between the switching point and the triggering point) is pH 0.1, and the control accuracy is
+/- 0.1 (reference value). In order to ensure the accuracy of measurement and therefore the control circuit, the Dupla
pH-Control Pro provides an optional six-week calibration memory function.
Caution: If no pH electrode is connected to the Dupla pH-Control Pro, so that the BNC socket is open, fictitious
pH values will be displayed.
, values higher than 9.9 are displayed as . Outside of these limits,
3.2.2 CO
night function
2
This enables interruption of the supply of CO2, controlled by a magnetic valve, into your aquarium during the night if
desired. The beginning and end times of the interruption during the night can be choosen after programming the pH
Set point.
3.2.3 pH alarm
A visual alarm indicated by flashing
if the temperature exceeds or drops below the programmed desired pH values.
The factory presetting is , which means no alarm. The alarm window can be set between a pH 0.1 and 4.0 deviation from the set point.
3.2.4 Deactivation/activation of the audible pH alarm
The audible alarm can be switched
or . The factory setting is , as otherwise an alarm could be triggered immediately when the system is first put into service when the electrode is still located outside the aquarium or
not yet calibrated.
3.2.5 Calibrate pH electrode
The factory setting of the calibration points are pH 7, pH 4 and pH 9, the calibration sequence is first pH 7, then pH 4
or alternatively pH 9. The calibration process can be cancelled by pressing the ▲ and ▼ buttons simultaneously.
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