Depolox Pool E 700 P Pool Managemet System

Summary

Product identification

The DEPOLOX® Pool E 700 P is a pool management system designed for measurement and control functions in pool water treatment applications. It is part of the WALLACE & TIERNAN® ANALYZERS/CONTROLLERS product line.

Design and Function

The system consists of a DEPOLOX Pool E flow cell module and a 700 P electronic module. The intelligent measurement module, housed in a non-corrosive enclosure, can be fitted with up to five sensors and features a clear flow cell with optional illumination. The flow cell is available in both pressureless and pressurized versions.

Measurement Module

• Processes sensor data and transmits it via a single CAN bus cable to the 700 P electronics.
• Ensures stable measurements through:
  • pH compensated free chlorine measurement with a 3-electrode chlorine sensor.
  • Temperature compensation.
  • Constant sample water flow controlled by a flow valve.
  • Quartz grit hydromechanical cleaning of chlorine sensor electrodes.
  • Optimized sample water flow to each sensor.
• Integrated multi-sensor for temperature, flow switch, and earthing.
• Optional LED indicators (red, yellow, white) for sensor status.

Electronic Module

• Features a 7” colour touch panel for intuitive operation.
• Incorporates communication interfaces: RS 485, USB, and Ethernet.
• Supports various chemical feed applications including dosing pumps, relay control feeders, chlorine gas feed control, on-site electrochlorination, and control signals to UV systems and flocculation/activated carbon slurry feed systems.
• Can measure and control free chlorine, pH, ORP, combined and total chlorine, and conductivity.
• Provides control outputs for chemical feed devices.
• Includes 8 alarm/relay outputs, expandable to 12, which are freely configurable.

Operating Limits and Conditions

Flow Cell Module

• Controlled sample water flow: 33 l/h
• Flow control valve:
  • Control range: 0.2 – 3.0 bar at valve inlet (3 – 43 psig)
  • Maximum back pressure: Up to 1.5 bar at valve outlet (0 to 22 psig)
• Maximum sample water temperature: 50 °C
• Multi-sensor switching point: 18 l/h ± 3 l/h with a hysteresis of 2 l/h.
• Sample water connections: PVC hose 6 x 3 mm or PE hose 6 x 1 mm; hose connectors on 1/2 ” union.
• Voltage supply (flow cell): 24 V DC from the electronic module via CAN connection.
• Weight (incl. packing): approx. 2.5 kg (5.5 lbs)
• Dimensions: 253 x 375 x 163 mm (8.5 x 15 x 6 inches)

Electronic Module

• Power supply: 100 – 240 V ± 10% 50/60 Hz, 48 W; 24 V DC, 30 W.
• Ambient temperature: 0 – 50 °C (32 – 122 °F).
• Enclosure: IP 66.
• Dimensions: 320 x 311 x 153 mm (12.5” x 12” x 12.9”).
• Weight with packaging: approx. 4.5 kg (10 lbs).

Sensors and Measurements

Sensor Inputs (Supported)

• 1 x Free chlorine
• 1 x pH
• 1 x ORP (oxidation reduction potential)
• 1 x Temperature (Pt 1000)
• 1 x Flow switch
• 1 x Total chlorine/combined chlorine
• 1 x Conductivity

Specific Sensor Details

• Free chlorine:
  • Measuring range: 0 to max 20 mg/l (scale freely selectable).
  • Resolution: Up to 10 mg/l: 0.01 mg/l; up to 20 mg/l: 0.1 mg/l.
  • Temperature compensation: 0 – 50 °C.
• Total chlorine:
  • Measuring range: 0 to max 20 mg/l (scale freely selectable).
  • Resolution: Up to 10 mg/l: 0.01 mg/l; up to 20 mg/l: 0.1 mg/l.
  • Temperature compensation: 0 – 45 °C.
  • Applicable for salt water pools with up to 4 % salt concentration.
• Combined chlorine:
  • Calculated and displayed as the difference between total and free chlorine.
  • Displayed range: 0 to max 20 mg/l (scale freely selectable).
  • Resolution: Up to 10 mg/l: 0.01 mg/l; up to 20 mg/l: 0.1 mg/l.
• pH value:
  • Measuring range: 0 to 14 pH (scale freely selectable in 1 pH steps).
  • Resolution: 0.01 pH.
  • Temperature compensation: 0 – 50 °C.
• ORP:
  • Measuring range: 0 to 400 mV or 500 to 1000 mV (scale freely selectable in 100 mV steps).
  • Resolution: 1 mV.
• Conductivity:
  • Measuring range: 500, 2500 µS/cm, 10, 20, 50, 100, 200, 300 mS/cm.
  • Resolution: 0.1 mS/cm.
  • Can be switched to NaCl display in mg/l and %.
  • Temperature compensation: 0 – 50 °C.
• Temperature:
  • Measured by integral Pt 1000 sensor.
  • Measuring range: 0 to 50 °C.
  • Resolution: 0.1 °C.

Electronic Module Interfaces and Outputs

Touchpanel Display

• 7-inch graphic display with backlight.
• Resistive touch screen.
• Resolution: 800 x 480 pixels.

Inputs

• Analog inputs: 1 x feed rate display; 2 x free selectable for circulation recording.
• Digital inputs: 3 x freely selectable (e.g., controller stop, mode changeover, second set point).

Output Contacts

• Alarm/Relay outputs: Max. 8 freely selectable alarm contacts/general alarm signal, controller outputs for free chlorine, combined chlorine, pH, and conductivity.
• Extendable with internal contact module.
• Maximum rating: 6 A / 250 V AC, 0.2 A / 220 V DC.

Analog Outputs (Optional)

• 4 x 0/4 – 20 mA, freely configurable.
• Load protected ≤ 500 Ohm.
• Accuracy: < 0.5 % FS.
• Galvanically isolated up to 50 V relative to earth.

Communication Interfaces

• SD card slot: For storage of process and archived data.
• USB interface: For firmware uploads/downloads and parameter adjustment via USB stick.
• Ethernet interface: For remote access (VNC Server) and Modbus® TCP protocol.
• RS 485: Two-wire bus connectivity.
• CAN Bus interface: For universal digital machine communication with sensors and measuring modules.
• Fieldbus connectivity: Optional field bus converter for Profibus® DP.

Integrated Functions and Controls

• DIN Contact: Transmits water parameter status according to DIN 19643.
• Economic Mode: Allows for reduced circulation volume based on internal clock, flow limit, or digital input.
• CEDOX Control Algorithm: Optimized chlorine residual control for economical use.
• Additional Integrated Pool Controls:
  • Start-stop control of UV or activated carbon slurry feed systems.
  • Control of salt concentration in salt water pools (with optional conductivity sensor).
  • Flocculation control, proportional to circulation amount.
• Peak Chlorination: Freely adjustable for optimizing water quality.
• Chemical Feed Rate Indication: Real-time display and optional stop at maximum thresholds.

Integral Safety Functions

• Safety shutdown for circulating pump failure, supply-tank-empty, sample water failure, and low circulation amount.
• Feed time monitoring and delay.
• Controller stop at sensor failure.

Disclaimer: This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror