pH controler

Product no.: DO43000

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105.81 €

Price incl. VAT, plus delivery

Delivery weight: 0.35 kg

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pH measuring and controlling device for actively adjusting the pH in the aquarium, for conventional lime reactors and algae tubes.

If the actual pH value exceeds the set value the built-in Schuko plug socket is activated to trigger an actuator (pump, solenoid, etc.). This device is designed for simple adjustment tasks and is according to this easy to operate and very rigid in daily aquaristic routine.

Possible functions of this device:

Function monitoring of external devices: The housing is fitted with an LED. In operating mode this indicates the active control of the external device.
Safety shutdown during programming: When entering into programming mode, the slot is deactivated for safety reasons.
Safeguard function: To protect electronic components, a delay of 60 seconds is set between 2 switching states before the slot becomes active again.
Return function: The HOBBY pH-Control eco automatically returns to operating mode when
no button is pressed for a period of 90 seconds while in programming mode.
Malfunction displaying: In case of an pH-Electrode defect "E01" is displayed.
Clock programming: The HOBBY pH-Control eco has a built-in real-time clock. The factory presets cthe time at 12:00. The time setting is cleared during a resetting procedure.
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 LO, values higher than 9.9 are displayed as HI. Outside of these limits, the pH channel is switched off. The pH-controlled CO₂ fertilisation is carried out through permanent measuring by a connected pH electrode and switching of a connected CO₂ magnetic valve with a switch hysteresis (the difference between the switching point and the triggering point) of 0.1 and a control accur cy is +/- 0.1. The switch hystereris is pH 0.1, the control accuracy is +/- 0.1 (reference value).
CO₂-Night off function: This enables to stop supplying CO₂, controlled by a magnetic valve, into your aquarium during the night if desired.
pH Alarm: When the programmed pH set-point is either not met or exceeded, the flashing LED light indicates an alarm. The alarm window can be set between 0.1 and 4.0 deviation from the set point. By default, a deviation of pH 0.5 is preset. The alarm function can be disabled by setting 0.0.
pH Electrode Calibration
The factory setting of the calibration points are pH 7, pH 4 and pH 9, the calibration sequence first is pH 7, then pH 4 or alternatively pH 9. The calibration process can be cancelled by pressing the "down" and "up" button simultaneously.
Reminder of Calibration Function: With this feature enabled, every six-weeks the LED light and "CAL" on the display flashes as a reminder to check the pH electrode calibration. If you prefer not to carry out a calibration, the memory display clears after activating any button
and reappears in another 6 weeks.

After a power brakedown the unit returns to the basic adjustment (pH set value = 7.0)

compact plug housing with electronics and LCD display

necessary accessories:

pH measurment chain "electrode"
buffer solutions (fresh water pH 4 and pH 7; sea water pH 7 and pH 9)

Operating voltage: 230 V, 50 Hz
Load capacity: max. 2000 W (ohmic load)
pH range: 4.0 to 9.9
pH accuracy: 0.1 pH
pH hysteresis: 0.1 pH
pH alarm range: 0.1 pH from 0 to 4.0 in 0.1 pH steps
pH calibration reminder: six weeks (you may deactivate this function)
lenghts of cable: 20 cm
pH connector: BNC mating plug
temperature compensation: non
dimensions: 135 x 80 x 55 (without plug part) mm
plug: Schuko plug (two pin earthed plug; CEE 7/4 socket)
WEEE-Reg.-No.: DE60458966

Short instruction (menue)
Instruction manual

Info: Der pH-Wert und seine Messverfahren (only in German)
Info: Kolorimetrische und ionenselektive Messverfahren für die Aquaristik (only in German)

The HOBBY pH-Control eco is designed exclusivly for use in enclosed rooms. All electronic components of the device must only be operated whilst they are free from defects. Should product be damaged, please return to your dealer for repair. Continued operation of the device may cause fatal injury from an electric shock. Ensure that the HOBBY pH-Control eco can not come into contact with water. This technical products must only be operated as supplied. Electronic components must not be modified in any way. Housing must not be opened. If the product is damaged cease useage or shut down immediatly by pulling from mains.