Depolox 700 M Analyzer for Potable Water

Summary

Product identification

The DEPOLOX® 700 M is an analyzer designed for measurement and limited control tasks in the drinking and process water industry. It can incorporate up to six measurement parameters: free chlorine, total chlorine, pH, oxidation reduction potential, conductivity, and temperature.

Electronic Module

Display and Interface

• 7-inch color touch panel with LED-lit flow cell programmable for alarm color changes.
• Intuitive user interface, accessible on smartphones or tablets via Ethernet.
• Displays all measurement parameters, with single touch access to trend graphs, parameter setup, and calibration details.
• External USB port for data downloading (up to two years of measurement data).

Measurement and Control Capabilities

• Incorporates up to six measurement parameters: free chlorine, ClO₂, O₃, KMnO₄, pH, Redox, conductivity, and temperature.
• Includes a total chlorine measurement input.
• Features four single feedback controllers for constant process flow applications.
• Provides four mA outputs and optional fieldbus modules for chemical feed automation in variable flow applications.

Inputs and Outputs

• Measurement Inputs:
  • 1 x DEPOLOX® 5 (free chlorine, ClO₂, O₃, KMnO₄)
  • 1 x pH
  • 1 x Redox
  • 1 x Conductivity
  • 1 x Temperature
  • 1 x Total Chlorine
  • 1 x Dosing quantity display (feedback signal of positioner)
• Digital Inputs: 3 x freely definable (e.g., controller stop, operating mode switch, external set-point).
• Output Contacts: Max. eight freely definable alarm contacts/general fault messages and controller outputs. Optional internal 4 x relay module (max. 6 A/250 V AC; 0.2 A/220 V DC).
• Special Outputs: Time-controlled contact (timed dosing).
• Analog Outputs (Optional): 4 x 0/4 – 20 mA, freely configurable (Load ≤ 1000 Ohm, accuracy < 0.5 % FS, galv. isolated up to 50 V relative to earth).

Communication Interfaces

• Ethernet interface.
• RS 485 for connection to the Wallace & Tiernan® Process Monitoring System (option).
• External fieldbus converter (option).

Power Supply

• 100 – 240 V AC ± 10 %, 50/60 Hz, 48 VA.
• 24 V DC ± 20 %, 30 W.

Environmental and Physical

• Ambient Temperature: 0 – 50 °C (32 – 122 °F).
• Protection: IP 66.
• Certifications: CE, CSA.
• Weight (incl. packaging): 4.5 kg (9.9 lbs).
• Dimensions (W x H x D): 320 x 311 x 153 mm (12.6 x 12.2 x 6.0 inches).

Flow Cell Module

Sensor Configuration

• Can be fitted with up to six sensors.
• Pressurized or non-pressurized sample water outlet options.
• Pressurized cell excludes the total chlorine sensor.
• Bare electrode cell measures free chlorine, chlorine dioxide, ozone, or potassium permanganate.
• TC2-S CAN membrane sensors are required for salt water applications with conductivity from 2.5 to 60 mS/cm (approx. 4% salt).

Flow Control and Monitoring

• Flow Control Valve:
  • Controlled sample water flow: 33 l/h (0.15 USgpm).
  • Control range: 0.25 – 3.0 bar (3 – 60 psi at valve inlet).
  • Back-pressure: max. 1.5 bar (21.7 psi) for pressurized model.
• Multi-sensor:
  • Monitors correct sample water flow: Switching point 21 l/h +/- 3 l/h; Switching hysteresis 2 l/h.
  • Measures sample water temperature with a Pt 1000 sensor for temperature compensation of chlorine and pH measurements.
  • Sample water earthing with a stainless steel sleeve.

Sample Water Connections

• PVC hose 6 x 3 mm or PE hose 6 x 1 mm hose connector adaptors to 1/2 “ threaded hose connection.

Environmental and Physical

• Sample Water Temperature: max. 50 °C (122 °F).
• Weight (incl. packaging): approx. 2.5 kg (5.5 lbs).
• Dimensions (W x H x D): 253 × 375 × 163 mm (9.9 x 14.7 x 6.4 inches).

Measuring Ranges

• Free chlorine, ClO₂, O₃, KMnO₄: 0 to 20 mg/l.
• Conductivity: 1 µS/cm to 300 mS/cm (minimum 200 µS/cm required for some measurements).
• pH: pH 0 to 12 (short time to 14).
• pH Compensation: Within the pH range of 5.0 - 8.0 according to the HOCl relationship.
• ORP: 0 to 1000 mV.
• Total Chlorine (Membrane sensors TC2 CAN and TC2-S CAN): 0.05 to 10 mg/l.

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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