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Defines the intended applications for the ORP controller and its associated products.
Highlights potential dangers associated with the measuring equipment due to mains voltage connection.
Details the display screen and the function of the Menu, Up, Down, and Ok buttons.
Provides instructions on mounting the ORP controller in a suitable environment and connecting it safely.
Offers simple tests to confirm the ORP controller is correctly connected and functioning.
Explains how to set the control point for the relay output and prevent frequent switching.
Guides users on how to set the desired ORP setpoint value using the controller's interface.
Explains how to set the hysteresis value to ensure stable relay operation around the setpoint.
Details the steps for calibrating the ORP controller using calibration fluids for accurate measurements.
Covers cleaning the controller enclosure and the electrode for optimal performance and longevity.
Provides instructions on how to properly store the ORP electrode to prevent damage and ensure its lifespan.
Offers solutions for common display, switching, or measurement instability problems.
Lists key technical parameters of the ORP controller, including ranges, voltage, and dimensions.
Explains the correct placement and installation of the flow-trough assembly for electrode measurement.
The Purusaqua ORP controller is a device designed for the treatment of slightly contaminated water, suitable for applications such as pools, ponds, aquariums, and light industry. Its primary function is to monitor and control the Oxidation-Reduction Potential (ORP) in water systems, thereby managing the operation of dosing pumps or ozone generators to maintain desired water quality.
The ORP controller features an adjustable relay output that can be configured to activate or deactivate external equipment based on the measured ORP value. This allows for automated control of water treatment processes. The device utilizes an ORP electrode to continuously measure the ORP of the water. The measured value is then compared against a user-defined setpoint and hysteresis to determine when the relay should switch.
A key aspect of its functionality is the setpoint and hysteresis setting. The setpoint is the target ORP value at which the relay should be controlled. To prevent rapid switching (flickering) of the relay around the setpoint, a hysteresis value is introduced. For example, if the setpoint is 275mV and the hysteresis is 5mV, the relay will activate when the ORP drops below 270mV (setpoint - hysteresis) and will only deactivate when the ORP rises above 280mV (setpoint + hysteresis). This ensures stable operation of the connected equipment.
The controller is designed for ease of use, featuring a display that shows current ORP values, the setpoint, and the status of the output. A menu system, navigated by "up" and "down" scroll buttons and an "Ok" button, allows users to calibrate the controller, adjust setpoints, and configure hysteresis parameters.
Installation of the ORP controller requires it to be mounted on a flat surface in a dry, cool, and well-ventilated environment, protected from direct sunlight and rain. It is crucial to connect the controller to a wall socket with a safety earth connection. For optimal performance and longevity of the electrode, it is highly recommended to use a flow-through assembly for mounting the electrode. While placing the electrode in a sieve or vortex is possible, care must be taken to ensure the wire connection remains above the water level at all times. Electrodes are not designed for high-pressure systems and should only be used in environments with pressure below 0.3 bar. Neglecting these installation requirements can lead to defects not covered by warranty.
Before initial use and periodically thereafter (2 to 4 times a year), the ORP controller should be calibrated to ensure reliable measuring data. If the controller is purchased with an electrode, it is typically pre-calibrated at the factory. The calibration process involves placing the electrode in calibration fluids of known ORP values. The user adjusts the displayed values to match the calibration fluid values using the scroll buttons and confirms with the "Ok" button. A two-point calibration, using two different calibration fluids, is recommended for higher accuracy, although a one-point calibration is also possible if only one fluid is available. It is critical to complete the calibration procedure without interruption to ensure proper functioning of the controller.
The controller's interface allows for straightforward adjustment of the setpoint and hysteresis. Users can access the "Relay settings" menu, select "Setpoint," and use the up/down buttons to set the desired ORP value. After confirming the setpoint, the hysteresis can be adjusted similarly. This intuitive process ensures that users can easily tailor the controller's behavior to their specific water treatment needs.
Maintenance of the ORP controller itself is minimal, primarily involving cleaning the enclosure with a damp cloth. The ORP electrode, however, requires regular cleaning every 2 to 4 weeks, depending on the specific application and water conditions. The recommended cleaning method is to gently wipe the electrode tip with fingers, avoiding brushes or abrasive clothes that could damage it.
Proper storage of the electrode is essential to prevent damage. Electrodes should never be stored dry, as this can cause irreversible damage within hours. To store the electrode, it should be placed in its original storage bottle, which should be filled with water to about one-third, ensuring the electrode tip is fully submerged.
The manual also provides troubleshooting guidance for common issues. For instance, if the display is blank, users are advised to check the mains cable connection and the internal fuse. If the ozone generator (or connected equipment) does not switch off when the measured value is above the setpoint, or does not switch on when below the setpoint, the setpoint and hysteresis settings should be verified. Messages like "ORP out of range L" or "ORP out of range H" indicate that the measured signal is outside the operational range, suggesting the need to replace the electrode. Unstable or hardly changing measured values prompt checks on electrode submersion, cable inlet position, electrode cleanliness, and potential interference from nearby electronic equipment such as frequency converters, adjustable water pumps, or UV lamps with electronic ballasts. These maintenance and troubleshooting features aim to ensure the continuous and reliable operation of the Purusaqua ORP controller.
General| Category | Controller |
|---|---|
| Manufacturer | Tol Watertechniek |
| Model | HD 200 |
| Input Voltage | 230 VAC |
| Protection Class | IP65 |
| Weight | 1.5 kg |
| Operating Temperature | 0°C to 50°C |
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