Xylem wtw TriOxmatic 700 SW Operating Manual
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Xylem wtw TriOxmatic 700 SW Operating Manual

Xylem wtw TriOxmatic 700 SW Operating Manual

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Operating manual
®
TriOxmatic
700
®
TriOxmatic
700 SW
TriOxmatic 700
TriOxmatic 700 SW
D. O. sensor
ba25307e06
07/2015
43

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Summary of Contents for Xylem wtw TriOxmatic 700 SW

  • Page 1 Operating manual ® TriOxmatic ® TriOxmatic 700 SW TriOxmatic 700 TriOxmatic 700 SW D. O. sensor ba25307e06 07/2015...
  • Page 2 ® TriOxmatic 700 (SW) Accuracy when going to The use of advanced technology and the high quality standard of our press instruments are the result of continuous development. This may result in differences between this operating manual and your instrument. Also, we cannot guarantee that there are absolutely no errors in this manual.

  • Page 3: Table Of Contents

    ® TriOxmatic 700 (SW) Contents ® TriOxmatic 700 (SW) - Contents Overview ........47 ®...
  • Page 4 ® Contents TriOxmatic 700 (SW) ba25307e06 07/2015...

  • Page 5: Overview

    ® TriOxmatic 700 (SW) Overview Overview ® Structure of the TriOxmatic 700 (SW) ® Fig. 1-1 Structure of the D. O. sensor (example: TriOxmatic 700) Protective hood WP 600 membrane cap Electrode unit Shaft Electrode unit: Gold working electrode (cathode) Insulator Silver counter electrode (anode) Reference electrode...

  • Page 6: Recommended Fields Of Application

    ® Overview TriOxmatic 700 (SW) Recommended fields of application TriOxmatic 700 Stationary measurements in water/wastewater applications. TriOxmatic 700 SW Stationary measurements in seawater, aquaculture. Instrument identification Instrument identification The instrument designation (end of name "-99" for SW model) is impressed on the plug end of the cable. The series number is engraved in the closing head.

  • Page 7: Safety

    ® TriOxmatic 700 (SW) Safety Safety General information on safety These safety instructions contain all instructions that have to be ® followed for a safe operation of the TriOxmatic 700 (SW) D. O. sensor. ® Before starting any work with the TriOxmatic 700 (SW), carefully read the safety instructions and strictly follow all protective measures mentioned.

  • Page 8: General Safety Instructions

    ® Safety TriOxmatic 700 (SW) General safety instructions Function and The sensor left the factory in a safe and secure technical condition. operational safety The failure-free function and operational safety of the sensor is only guaranteed if the generally applicable safety measures and the special safety instructions in this operating manual are followed during its use.

  • Page 9: Commissioning

    ® TriOxmatic 700 (SW) Commissioning Commissioning Scope of delivery ®  TriOxmatic 700 (SW) The sensor is filled with electrolyte and provided with a protective hood and protective caps.  ZBK 600 accessory kit  Operating manual. Installation ® Connection to the The TriOxmatic 700 (SW) connection cable has a screw plug to be measuring transmitter...

  • Page 10: Commissioning / Getting The Instrument Ready For Measuring

    ® Commissioning TriOxmatic 700 (SW) Commissioning / Getting the instrument ready for measuring Pull the protective cap off the protective hood of the sensor. Leave the sensor to lie in the air for at least 60 minutes while it is switched on (polarization). Note For the sensor to polarize, the following conditions must be fulfilled: ...

  • Page 11: Measuring / Operation

    ® TriOxmatic 700 (SW) Measuring / Operation Measuring / Operation Measuring Warning Contact with the sample can lead to danger to the user! Depending on the type of sample, suitable protective measures must be taken (protective clothing, protective goggles, etc.). For measuring submerse the operable sensor in the test sample.

  • Page 12: Calibration

    ® Measuring / Operation TriOxmatic 700 (SW) Calibration 4.2.1 General information on calibration Why calibrate? During the operation of a D.O. sensor, the slope of the D.O. sensor changes with time. The calibration procedure determines the current slope of the sensor. When to calibrate? Calibrate before measuring and at regular intervals (depending on the application).

  • Page 13: Calibration In Water Vapor-Saturated Air

    ® TriOxmatic 700 (SW) Measuring / Operation 4.2.2 Calibration in water vapor-saturated air If necessary, clean the sensor and membrane and dry the membrane (see section 5.2 C LEANING THE SENSOR SHAFT AND MEMBRANE Calibrating position 2 cm Bring the sensor into the calibrating position. To do so, position the sensor approx.

  • Page 14: Function Check

    ® Measuring / Operation TriOxmatic 700 (SW) Function check The function check is the simplest way of letting you know whether the sensor needs to be cleaned and calibrated. Note The function check can either be performed in water vapor-saturated air or in air-saturated water.
  • Page 15 ® TriOxmatic 700 (SW) Measuring / Operation Measured values within If the measured value lies within the range of precision required by the the required precision user, no cleaning or recalibrating is necessary. Example: Required precision Measured value in air: 97 % saturation (nominal value: 100%) ...
  • Page 16 ® Measuring / Operation TriOxmatic 700 (SW) ba25307e06 07/2015...

  • Page 17: Maintenance, Cleaning, Disposal, And Replacement

    ® TriOxmatic 700 (SW) Maintenance, cleaning, disposal, and replacement Maintenance, cleaning, disposal, and replacement General maintenance instructions Warning Contact with the sample can lead to danger to the user! Depending on the type of sample, suitable protective measures must be taken (protective clothing, protective goggles, etc.). Cleaning the sensor shaft and membrane For normal operation (e.g.
  • Page 18 ® Maintenance, cleaning, disposal, and replacement TriOxmatic 700 (SW) Cleaning Pull the sensor out of the sample. Get rid of any coarse contamination on the sensor (e.g. brush it off in a bucket of tapwater, wash it down with a hose or wash it off with a cloth).
  • Page 19 ® TriOxmatic 700 (SW) Maintenance, cleaning, disposal, and replacement Screw the protective hood back on again. If necessary, carefully dry the membrane with a lint-free paper towel. Calibrate the sensor (see section 4.2 C ALIBRATION ba25307e06 07/2015...

  • Page 20: Changing The Electrolyte And Membrane Cap

    ® Maintenance, cleaning, disposal, and replacement TriOxmatic 700 (SW) Changing the electrolyte and membrane cap WTW delivers the sensor ready for operation. The electrolyte solution and membrane cap must only be replaced if:  a calibration error occurs due to a highly contaminated membrane ...
  • Page 21 ® TriOxmatic 700 (SW) Maintenance, cleaning, disposal, and replacement Caution The ELY/A electrolyte solution irritates eyes, skin and mucus membranes. If it comes into contact with the eyes, rinse thoroughly with water and consult a doctor! During working activities, always wear suitable protective gloves and protective goggles/face shield! Follow the safety datasheet.
  • Page 22 ® Maintenance, cleaning, disposal, and replacement TriOxmatic 700 (SW) Thoroughly rinse the sensor head with electrolyte solution. Fill a new WP 600 membrane cap with ELY/A electrolyte solution (see section 5.8 M AINTENANCE EQUIPMENT AND REPLACEMENT PARTS Throw away the first filling and fill the membrane cap with electrolyte solution once more.
  • Page 23 ® TriOxmatic 700 (SW) Maintenance, cleaning, disposal, and replacement Remove any air bubbles by carefully tapping the membrane cap. Caution The ELY/A electrolyte solution irritates eyes, skin and mucus membranes. If it comes into contact with the eyes, rinse thoroughly with water and consult a doctor! During working activities, always wear suitable protective gloves and protective goggles/face shield! Follow the safety datasheet.
  • Page 24 ® Maintenance, cleaning, disposal, and replacement TriOxmatic 700 (SW) Precision Recommendation: In order to carry out precision measurements, leave measurements the sensor to polarize for a longer period of time, e.g. overnight, and recalibrate it the following day. Note In the following cases, you must refill the sensor once more: ...

  • Page 25: Cleaning The Electrodes

    ® TriOxmatic 700 (SW) Maintenance, cleaning, disposal, and replacement Cleaning the electrodes The counter electrode and reference electrode always show a coloration. This is necessary for the operation of the sensor. This is not contamination. Cleaning is only required in cases of slopes that are too small or too large (the sensor cannot then be calibrated) that cannot be resolved by changing the membrane cap and electrolyte solution.
  • Page 26 ® Maintenance, cleaning, disposal, and replacement TriOxmatic 700 (SW) Rinse the sensor head with tap water. ba25307e06 07/2015...

  • Page 27: Cleaning The Gold Working Electrode

    ® TriOxmatic 700 (SW) Maintenance, cleaning, disposal, and replacement 5.4.1 Cleaning the gold working electrode Moisten the gold working electrode and the SF 300 polishing strip (see section 5.8 M AINTENANCE EQUIPMENT AND ) with deionized water. REPLACEMENT PARTS Using the rough side of the wet SF 300 polishing strip, polish off any contamination from the gold working electrode using light pressure.

  • Page 28: Cleaning The Silver Counter Electrode

    ® Maintenance, cleaning, disposal, and replacement TriOxmatic 700 (SW) 5.4.2 Cleaning the silver counter electrode We recommend to clean the silver counter electrode with the RA 600 cleaning attachment that is available as an accessory (see section 5.8 M ). This prevents AINTENANCE EQUIPMENT AND REPLACEMENT PARTS the reference electrode from coming into contact with the cleaning solution.
  • Page 29 ® TriOxmatic 700 (SW) Maintenance, cleaning, disposal, and replacement Remove the screw cap from the safety cap of the cleaning attachment. Fill the screw cap with RL-AG/Oxi cleaning solution (see section 5.8 M AINTENANCE EQUIPMENT AND REPLACEMENT PARTS Screw the sensor with the safety cap onto the screw cap. Leave the cleaning solution for a maximum of 1 hour to take effect.
  • Page 30 ® Maintenance, cleaning, disposal, and replacement TriOxmatic 700 (SW) Unscrew the screw cap. Thoroughly rinse the electrode unit with the safety cap on with deionized water. Unscrew the safety cap. Rinse the sensor head and electrode unit several times with deionized water.
  • Page 31 ® TriOxmatic 700 (SW) Maintenance, cleaning, disposal, and replacement Water the sensor head and electrode unit in deionized water for at least an hour. Carefully shake off the drops of water. Fill a new WP 600 membrane cap and screw it on (see section 5.3 C HANGING THE ELECTROLYTE AND MEMBRANE CAP Connect the sensor to the measuring transmitter again.
  • Page 32 ® Maintenance, cleaning, disposal, and replacement TriOxmatic 700 (SW) Variant 2: Wipe the silver counter electrode with a lint free paper towel Cleaning the silver and carefully remove any loose deposits. counter electrode in a beaker Fill a beaker (150 ml, high-sided form) with approx. 25 ml RL- AG/Oxi cleaning solution.
  • Page 33 ® TriOxmatic 700 (SW) Maintenance, cleaning, disposal, and replacement Leave the cleaning solution to work for 1 hour. Rinse the sensor head and electrode unit several times with deionized water. Water the sensor head and electrode unit in deionized water for at least an hour.

  • Page 34: Checking The Sensor For Freedom From Zero-Current

    ® Maintenance, cleaning, disposal, and replacement TriOxmatic 700 (SW) Fill a new WP 600 membrane cap and screw it on (see section 5.3 C HANGING THE ELECTROLYTE AND MEMBRANE CAP Connect the sensor to the measuring transmitter again. After approx. 60 minutes polarization time, the sensor is ready for operation.

  • Page 35: Storage

    ® TriOxmatic 700 (SW) Maintenance, cleaning, disposal, and replacement Leave the sensor in the test solution for an hour. Read the measured value. Test criterion The sensor is OK if < 2 % oxygen saturation is displayed as the measured value. If the measured value is >...

  • Page 36: Maintenance Equipment And Replacement Parts

    ® Maintenance, cleaning, disposal, and replacement TriOxmatic 700 (SW) Maintenance equipment and replacement parts Description Model Order no. Accessory kit ZBK 600 202 620 (2 replacement membrane caps, 50 ml electrolyte solution, 50 ml cleaning solution, polishing film) Replacement membrane caps WP 600/2 202 850 (2 pieces)

  • Page 37: What To Do If

    ® TriOxmatic 700 (SW) What to do if... What to do if... The sensor is in the air Cause Remedy and the display shows – No electrolyte in the membrane – Change the WP 600 0.0 mg/l or 0% O membrane cap (see section 5.3) The sensor cannot be...
  • Page 38 ® What to do if... TriOxmatic 700 (SW) Measured value Cause Remedy fluctuating heavily – Membrane head loose – Screw the membrane cap tight – Membrane does not fit snugly on – Change the membrane cap, the gold working electrode then recalibrate (see section 5.3 and section 4.2) Incorrect temperature...

  • Page 39: Technical Data

    ® TriOxmatic 700 (SW) Technical data Technical data General data Measuring principle Membrane-covered amperometric sensor with potentiostatically operated 3-electrode system. TriOxmatic 700: Dimensions TriOxmatic 700 SW: 59.5 Contact screw Weight (without sensor TriOxmatic 700 approx. 660 g connection cable) TriOxmatic 700 SW approx.
  • Page 40 ® Technical data TriOxmatic 700 (SW) Temperature IMT (integrated membrane temperature compensation) compensation Material Shaft: – TriOxmatic 700 VA steel 1.4571 – TriOxmatic 700 SW Polyoxymethylene (POM) Contact screw Titan Grade 2 (TriOxmatic 700 SW only) Membrane cap Polyoxymethylene (POM) Membrane Fluorine plastic Sensor head...

  • Page 41: Measurement Conditions

    ® TriOxmatic 700 (SW) Technical data Measurement conditions Measuring range D. O. concentration 0.0 ... 60.0 mg/l D. O. saturation 0 ... 600 % ≈ 0 ... 1200 mbar pO Polarization time In the case of re-commissioning or change of At least electrolyte: 60 minutes...

  • Page 42: Characteristic Data On Delivery

    ® Technical data TriOxmatic 700 (SW) Characteristic data on delivery Zero signal < 0.2 % of the saturation value Response time at 25 °C (90 % of the final value display) after: < 180 s Own consumption 0.0059 µg h (mg/l) at 20 °C Drift...
  • Page 44 For more information on how Xylem can help you, go to xyleminc.com. ® Service address: Xylem Analytics Germany Sales GmbH &...

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