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M6M TOUGH DISSOLVED OXYGEN SYSTEM
TURTLE
TOUGH
MANUAL
Dissolved Oxygen
turtletoughsensors.com
1
®
TURTLE
®
TOUGH

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Summary of Contents for Turtle Tough M6M

  • Page 1 TURTLE ® TOUGH MANUAL M6M TOUGH DISSOLVED OXYGEN SYSTEM Dissolved Oxygen  TURTLE ® turtletoughsensors.com TOUGH...
  • Page 2: Table Of Contents

    Contents Safety Precautions Qualification and Training of Personnel Important Safety Instructions Hazards due to Non-compliance Safe Operation Safety Instructions for the Owner/Operator Installation, Maintenance and Inspection Impermissible Modes of Operation Unauthorised Modification Chemicals Sensors Introduction Site Selection Unpacking Specifications Connection Diagram Operation Temperature Measurement Temperature Stabilisation Time...
  • Page 3: Safety Precautions

    Safety Precautions Before attempting to unpack, set up, or operate this instrument, please read this entire manual. • Make certain the unit is disconnected from the power source before attempting to service or remove any component. • Make certain the unit is disconnected from other sources of force or pressure (for example, pneumatic or hydraulic), before attempting to service or remove any component.
  • Page 4: Qualification And Training Of Personnel

    Personnel who do not have the required know-how must be trained and instructed. Also, the owner of the system must ensure that the relevant personnel are fully familiar with and have understood the contents of this manual. Should training be required please contact your Turtle Tough distributor. Important Safety Instructions When installing and using this electrical equipment, basic safety precautions should always be observed.
  • Page 5: Installation, Maintenance And Inspection

    Important: Please unpack the equipment and ordered accessories carefully in order not to miss small Appropiate PPE to be parts. Immediately compare the scope of delivery to the delivery note. If there are any discrepancies, worn when contact your Turtle Tough Representative. in contact with the sensor Sensors...
  • Page 6: Introduction

    Turtle Tough Sensor. This instruction manual provides information for the correct installation and use of a Turtle Tough M6M TOUGH Dissolved Oxygen System to ensure you get the maximum life and performance from your sensor. The M6M TOUGH Dissolved Oxygen Analyser is a fixed installation electronic communication and control system.
  • Page 7: Site Selection

    Installation As with all instrumentation, the installation and commissioning of this instrument are crucial to its Danger safe and effective operation. This instrument must only be used for its purpose as outlined in this Electric manual. It must be installed and commissioned by this manual and by trained, qualified personnel. Shock Hazard Site Selection...
  • Page 8: Specifications

    Specifications Product name M6M TOUGH Dissolved Oxygen System – Inline Code TT-TOUGH-DO-M6M O₂-Measuring ranges 0.0 – 40.0 ppm dissolved O2 O₂-Accuracy ± 0.5 % of full-scale point °C-Measuring rang 0.0 – 50.0 °C °C-Accuracy ± 0.1°C, automatic temperature compensation 2 simultaneous Recorder outputs O2 : 0.0 –...
  • Page 9: Connection Diagram

    Connection Diagram • Connection has to be carried out only by qualified personnel! • Follow the correct main circuit connection. • The instrument must NEVER be switched on without an attached sensor. Ground Hot (Active) Zero (Neutral) Recorder output oxygen 0/4 –...
  • Page 10: Operation

    Dissolved Oxygen Measurement In order to obtain reliable measurements, the Turtle Tough sensor must be placed in a position where the natural approach flow amounts to a minimum of 30 cm/s. If there is no natural approach flow, it will be necessary to create an artificial flow. This can be done as follows: •...
  • Page 11: Calibration

    Calibration Calibration Verification Check Every instrument leaves our manufacturing facility in a calibrated condition after going through a test programme of several hours. The user should nevertheless re-check the calibration since a change may have occurred due to long transport or storage periods. For a fast routine check it is sufficient to have the sensor in atmospheric air.
  • Page 12: Sensor Maintenance

    Sensor Maintenance The M6S TOUGH Dissolved Oxygen Sensors are extremely corrosion, vibration, and knock resistant, due to their design and construction. • The sensor body (6) and most other sensor components are made of plastic material suitable for recycling. • The visible cathode (3) consists of fine silver in the case of the “active”...
  • Page 13: Storage Of The Sensor

    Storage of the Sensor When a sensor is not being used for a longer period of time, it is recommended to store it in water, where it should be immersed up to the beginning of the cable. This prevents evaporation of the electrolyte and guards against loss of membrane elasticity.
  • Page 14: Replacement Of The Cathode Membrane

    Replacement of the Cathode Membrane The cathode membrane has to be replaced immediately in cases where over- pressure during refilling of the electrolyte has led to a shift in the position of the membrane, or where the sensor has not been stored in water over a longer period resulting in a loss of membrane elasticity.
  • Page 15: Sensor Refurbishment

    Sensor Refurbishment Refurbishment is recommended every six months and also whenever the membrane has been damaged. The refurbishment procedure involves both electrolyte replacement and membrane replacement. This ensures that no foreign substances can get into the electrolyte in the case of a damaged membrane. Steps for replacing the electrolyte and the cathode-membrane: 1.
  • Page 16: Pressure Compensation Membrane Replacement

    Using the Membrane Positioner Use the Membrane Positioner TT-TOUGH-DO-MP to easily replace the cathode membrane without any wrinkles. Follow these steps for replacing the membrane using a Turtle Tough Membrane Positioner: 1. Pull off the frame. 2. Put the Positioner on a table.
  • Page 17: Spare Part List

    Polythene Collar (red collar) for sensor tip (one set = 2 pcs.) TT-TOUGH-DO-MP Membrane Positioner TT-TOUGH-DO-PC4 TOUGH Series DO Sensor Protection Cap Small - Suits M4M & M6M Sensors TT-TOUGH-DO-PC6 TOUGH Series DO Sensor Protection Cap Large - Suits M6M Sensors TURTLE ®...
  • Page 18: Warranty

    Shelf Life Warranty The standard shelf life for a Turtle Tough sensor is one year from the date of shipment. Sensors stored longer than this period may still be functional but are no longer under warranty. Sensors should be stored in a cool, dry location with the sensor tip (where the pH/ORP element is located) oriented toward the ground.
  • Page 19: Return Goods

    IMPORTANT: Ground loops, poor earthing and faulty electrical installations are a common cause of sensor damage. If you are experiencing unusual or erratic readings, please refer to our support document on ground loops. Damage to Cables and Connectors Please note that integral sensor cables, connectors and plugs must NOT be cut, removed or modified in any way. Sensors contain sensitive internal electronics and our cables and connectors are designed to protect the integrity of these components.

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