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Table of Contents
Summary of Contents for NDE Pool DDPHCL2
- Page 1 DDPHCL2 Unit pH / Chlorine Control INSTRUCTION MANUAL...
- Page 2 WARNINGS This manual is dedicated to the technical personnel responsible of the installation, management and maintenance of the plants. The manufacturer assumes no responsibility for damages or malfunctions occurring after intervention by non-authorized personnel, or not compliant with the prescribed instructions. Before performing any maintenance or repair action, ensure that the system is electrically and hydraulically insulated.
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Page 3: Table Of Contents
TABLE OF CONTENTS PACKING LIST ............................ 4 INTRODUCTION ..........................4 INSTALLATION ........................... 4 TECHNICAL DATA ..........................5 FUNCTIONAL DESCRIPTION OF THE SYSTEM ................6 HYDRAULIC CONNECTIONS ......................8 Suction Line ..........................8 Injection Line ........................... 8 ELECTRICAL CONNECTIONS ......................9 Level Control .......................... -
Page 4: Packing List
Warning! Always follow the warnings and general safety information referred at the beginning of this manual! Install the DDPHCL2 unit away from heat sources, in a dry place protected from direct sunlight, at a maximum ambient temperature of 40°C. The minimum temperature shall be such as to ensure the solution to be dosed remains in a fluid state and in no case less than that declared in the “Technical specifications”... -
Page 5: Technical Data
TECHNICAL DATA available on BNC connectors, input impedance > 10^12 Ω pH and RX Inputs Measure Ranges 0.00 to 14.00 pH, 0 to 1000 mV (redox) Precision better than 1% of the full scale Repeatability better than 0.2% of the full scale Configuration two configuration level (standard and advanced) Digital Inputs... -
Page 6: Functional Description Of The System
FUNCTIONAL DESCRIPTION OF THE SYSTEM Front view • Control panel with large display and keyboard (see description on next page) • Peristaltic pump (1) for acid dosage • Peristaltic pump (2) for chlorine dosage • Transparent methacrylate, down-flow type electrode-holder Bottom view: connections •... - Page 7 Front panel POWER LED Green light; slow flashing indicates that the unit is powered and normally functioning, while fast blinking indicates a fault (lack of liquid to be dosed or pump disabled) PUMP1, 2 LED Red light on during the rotation of the respective pump CAL Key Provides access to the “Configuration”, “Calibration”...
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Page 8: Hydraulic Connections
HYDRAULIC CONNECTIONS Check that the suction line does not exceed the maximum height of 1.5 m from the tank bottom. Unscrew the pipe-wrench nut and remove the two protective caps from fittings (in the case a pump head needs to be removed, it is recommended to reuse the protective caps, to prevent any leakage from the pump body). -
Page 9: Electrical Connections
Note: The injection valve also works as non-return valve: do not disassemble it internally. ELECTRICAL CONNECTIONS The DDPHCL2 unit is supplied already wired internally and complete with power cable (with plug upon request). This is the only electrical connection to be performed by the customer. -
Page 10: Internal Connections (For Technical Personnel Only)
INTERNAL CONNECTIONS (for technical personnel only) The unit is provided prewired internally, and all connections of normal use (power supply, measurement sensors and level sensors) are available externally via cable or connector. However, if you need to operate on the electronic boards or replace blown fuses, refer to the diagram below. -
Page 11: Visualizations
VISUALIZATIONS During normal operations, the display shows the two measured values on the top line, while the bottom row displays the status of the two pumps. For example: “7.25pH 286mV” “P1 ON P2 020%” (pump 1 ON in ON/OFF mode, pump 2 ON in proportional mode with indication of the functioning percentage) In these conditions, pressing the ... -
Page 12: Advanced Configuration
Advanced Configuration The advanced configuration mode also includes the parameters protected by password, that allow a complete configuration of the system. This mode is normally accessed only by authorized technical personnel. Once selected the “Advanced Configuration” A D V A N C E D C O N F I G . -
Page 13: Meaning Of Configuration Parameters
Meaning of Configuration Parameters PARAMETER 01 FUNCTIONING TYPE OF THE PUMP 1 This parameter allows to set the functioning type of pump 1, typically used for the pH control. PARAMETER 02 SET-POINT PUMP 1 This parameter allows to enter the desired pH value for the swimming pool water. The dosing pump is activated / de-activated to reach this value and keep it constant. - Page 14 PARAMETER 13 START-UP DELAY This parameter allows to set a start-up delay, which is a time of waiting before starting measurements to allow the correct polarization and stabilization of the measuring electrodes. This prevents unreliable initial readings. Typically in the case of pH measurements one minute is enough, while for redox electrodes may be necessary a delay of 30 minutes.
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Page 15: Electrochemical Calibration
Electrochemical Calibration pH Calibration Rinse the pH electrode with distilled water, then immerse it in the pH 7.01 pH buffer solution Press the CAL key to enter the menu mode and I N 1 C A L I B R A T . use the ... -
Page 16: Manual Mode
Notes If the system does not automatically recognize the buffers or the “Calibration Impossible” error occurs, it can be due to: a) calibration solution contaminated or expired b) electrode faulty or dead c) connection cable or connector damaged ... -
Page 17: Errors / Alarms
ERRORS / ALARMS Every error or anomaly detected by the system generates an alarm message on the display: LEV1 / LEV2 The level sensor 1 or 2 detected a low level of the liquid to be dosed; restore the level into the related tank FLOW The flow sensor detected an anomaly that can be due to low pressure into the hydraulic circuit or wrong adjustment of the flow sensor;... - Page 18 Extraordinary maintenance – Replacing the peristaltic tube: Unscrew the two front screws and remove the transparent cover. To remove the old tube, first release the left connector and then turn the roller-holder as shown by the arrow in the figure, to free the tube up to the right connector.
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Page 19: Accessories And Spare Parts
ACCESSORIES AND SPARE PARTS Item Description Part No. pH Electrode pH Electrode with plastic body, direct cable and BNC 80092000 RX Electrode RX/Pt Electrode with plastic body, direct cable and BNC 80192100 Transparent methacrylate, down-flow probe-holder with PP 80610258 connections for hose 6x8 and sampling outlet Flow control kit for SDE electrode-holder 97009203 PVC Crystal suction hose (2 m), PE delivery hose (2 m), injection...