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Maintenance, cleaning, disposal, spare parts

25

4.2

Cleaning the electrodes

Note

Counter electrode and reference electrodes always show a
coloring. This is necessary for the operation of the probe. It
is not a contamination.

Cleaning is only required if the slope is too high or too low
(the probe cannot be calibrated), and if this cannot be
remedied by replacing the membrane head and the
electrolyte solution.

1 Disconnect the probe from the instrument.

2 Screw off the membrane head.

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Содержание TriOxmatic 701

Страница 1: ...D O probe TriOxmatic 701 1 ba25308e06 07 2015 Operating manual...

Страница 2: ...operating manual and your instrument Also we cannot guarantee that there are absolutely no errors in this manual Therefore we are sure you will understand that we cannot accept any legal claims result...

Страница 3: ...ng with normal operation e g domestic sewage 14 3 8 Storing 17 4 Maintenance cleaning disposal spare parts 19 4 1 Replacing the electrolyte solution and membrane head 19 4 2 Cleaning the electrodes 25...

Страница 4: ...Contents 4 7 Technical data 47 7 1 General data 47 7 2 Measuring conditions 49 7 3 Characteristics when delivered 50 7 4 Electrical data 51...

Страница 5: ...Overview 5 1 Overview 1 1 Overall view of the D O probe TriOxmatic 701...

Страница 6: ...tion cap for transport and storage 2 Protection hood 3 Membrane head WP 25 i 4 Shaft 5 Closing head 6 Protection ring for G1 thread 7 Working electrode gold cathode 8 Counter electrode silver anode 9...

Страница 7: ...professional training and experience the operators will know the necessary safety precautions to take when handling chemicals Safety instructions In the various chapters of this operating manual the...

Страница 8: ...ioning and operational safety of the probe can only be guaranteed if the generally applicable safety measures and the specific safety instructions in this operating manual are followed during operatio...

Страница 9: ...for a lengthy period of time is visibly damaged no longer operates as described in this manual If you are in any doubt please contact the supplier of the probe Obligations of the purchaser The purchas...

Страница 10: ...Safety 10...

Страница 11: ...rate the next day or let the probe polarize for the night 3 3 Recommended fields of application On line measurements in rivers lakes and waste water and in activated sludge basins of waste water treat...

Страница 12: ...ned and calibrated Note The function check can either be performed in water vapor saturated air or in air saturated water In the case of air temperatures under 5 C we recommend to perform the function...

Страница 13: ...ead the measured value and determine whether it lies within the range of precision required by the user Required accuracy 5 Measured value in air 97 saturation no cleaning or recalibrating required th...

Страница 14: ...essel with air saturated water and perform the function check as described above 3 7 Cleaning with normal operation e g domestic sewage Cleaning and calibrating is required approx every 4 to 6 weeks i...

Страница 15: ...ing 15 Caution Clean the membrane very carefully The membrane may be damaged by sharp edged objects or when lying on stones 2 Carefully clean the probe shaft and the membrane 3 Clean the protection ho...

Страница 16: ...oning 16 Wait at least 15 minutes for adjustment then calibrate the probe 4 Screw on the protection hood again 5 Rinse the probe with clear tapwater 6 Carefully dry the membrane using a lint free pape...

Страница 17: ...monitor Note Maintenance of the probe is required see chapter 4 MAINTENANCE CLEANING DISPOSAL SPARE PARTS if the membrane is damaged or the probe cannot be calibrated anymore Leakage or Sens Reg disp...

Страница 18: ...Commissioning 18...

Страница 19: ...trolyte solution is depleted or the counter electrode is poisoned Sens Reg message Warning Contact with the measuring solution can endanger the user Take protective measures suitable for the kind of m...

Страница 20: ...sposal spare parts 20 Caution For all maintenance work disconnect the probe from the instrument 1 Disconnect the probe from the instrument 2 Screw off the membrane head 3 Thoroughly rinse the probe he...

Страница 21: ...ng disposal spare parts 21 Warning Observe the warning on the ELY A bottle 4 Carefully wipe and dry the counter electrode using a paper towel 5 Moisten the new membrane with some drops of the ELY A el...

Страница 22: ...cleaning disposal spare parts 22 Note Always use a new membrane head 6 Fill the membrane head with electrolyte solution 7 Remove air bubbles by careful knocking 8 Rinse the probe head with electrolyt...

Страница 23: ...are parts 23 9 Screw the WP 25 membrane head on the shaft Hold the probe inclined Excess electrolyte solution is pressed out at the vent 10 The filling should be free of air bubbles Small air bubbles...

Страница 24: ...s ready for operation then it is essential to recalibrate the probe Recommendation For precision measurements calibrate the probe the following day once again 11 Refill only in case of Big air bubbles...

Страница 25: ...oring This is necessary for the operation of the probe It is not a contamination Cleaning is only required if the slope is too high or too low the probe cannot be calibrated and if this cannot be reme...

Страница 26: ...Maintenance cleaning disposal spare parts 26 3 Thoroughly rinse the probe head with deionized water...

Страница 27: ...rode Moisten the cathode and the SF 300 grinding foil with deionized water Caution Do not use normal grinding paper or glass fibre pen 1 Using the wet SF 300 grinding foil polish impurities off the ca...

Страница 28: ...d using the RA 600 cleaning cap or in a glass beaker 4 2 3 Cleaning the counter electrode using the RA 600 cleaning cap The RA 600 cleaning cap is available as an accessory see chapter 6 RECOMMENDED A...

Страница 29: ...al spare parts 29 Caution Never grease or oil the inner O ring 3 Screw the cleaning cap on the probe instead of the membrane head 4 Remove the screw cap from the safety cap 5 Fill the screw cap with R...

Страница 30: ...ode might be destroyed and the probe defective If the RA 600 is used correctly however there is no danger for the probe Allow the cleaning solution to react for max 1 hour 6 Screw the safety cap with...

Страница 31: ...sal spare parts 31 9 Screw off the safety cap 10 Thoroughly rinse the probe head and the electrode unit with deionized water several times 11 Soak the probe head and the electrode unit in deionized wa...

Страница 32: ...Maintenance cleaning disposal spare parts 32 Note See section 4 3 REFILLING THE MEMBRANE HEAD 12 Carefully shake off water drops...

Страница 33: ...the counter electrode in the glass beaker 1 Screw off the membrane head 2 Using a lint free paper towel wipe the counter electrode and carefully remove any loose coating 3 Fill the glass beaker 150 m...

Страница 34: ...e probe defective Allow the cleaning solution to react for 1 hour 4 Put the probe in the stand Immerse the electrode unit into the RL AG Oxi cleaning solution up to a little bit above the counter elec...

Страница 35: ...Maintenance cleaning disposal spare parts 35 Soak in deionized water for at least one hour 7 Carefully shake off water drops...

Страница 36: ...4 3 Refilling the membrane head Warning Observe the warning on the ELY A bottle Note Always use a new membrane head 1 Moisten the new membrane with some drops of the ELY A electrolyte solution 2 Fill...

Страница 37: ...arts 37 3 Remove air bubbles by careful knocking 4 Rinse the probe head with electrolyte solution 5 Screw the WP 25 membrane head on the shaft Hold the probe inclined Excess electrolyte solution is pr...

Страница 38: ...is essential to recalibrate the probe Recommendation For precision measurements calibrate the probe the following day once again 6 Connect the probe to the measuring instrument again The probe is read...

Страница 39: ...ygen from the solution The probe should have been in operation for at least one hour before the check Course of the check Perform an exterior cleaning of the probe Switch the measuring instrument to t...

Страница 40: ...c waste 4 6 Maintenance and spare parts Model Order no Exchange membrane heads 2 pieces WP 25i 2 202 852 Electrolyte solution 1 bottle with 50 mL ELY A 205 212 Cleaning solution for the silver counter...

Страница 41: ...Perform an exterior cleaning of the probe according to the operating manual Then wait for at least 15 minutesandrecalibrate If there is contamination that cannot be removed Replace the electrolyte so...

Страница 42: ...mbrane head and calibrate according to the operating manual Shunt resistance caused by moisture in the probe plug or cable To check disconnect the probe screw off the membrane head thoroughly rinse th...

Страница 43: ...the polarization to be completed 2 h Probe has not been calibrated for a lengthy period of time Perform an exterior cleaning and calibration according to the operating manual Shunt resistance caused b...

Страница 44: ...electrodes Cause Remedy The membrane head is loose Screw the membrane head tight There is a hole in the membrane Replace the membrane head and recalibrate according to the operating manual if necessar...

Страница 45: ...700 DU 203 715 D 702 203 738 EH U 170 109 320 UA 55 UA130 UA SO 109 260 109 261 109 263 V EH F 170 1 5 EH F 170 2 5 109 272 109 273 S 200 108 540 Mounting set Mounting set Flow through armature Unive...

Страница 46: ...Recommended accessories 46 only for floater mounting or extremely strong current and or turbulence Note For further holders and simulators refer to the WTW catalog GWA 109 232 Electrode weight...

Страница 47: ...brane covered amperometric probe with a 3 electrodes system potentiostatically operated electrode with integrated preamplifier ELY A Voltage signal proportional to the O2 partial pressure corrected by...

Страница 48: ...ing head POM Shaft VA steel 1 4571 Protection hood POM Cable screw joint VA steel 1 4571 Cable coating PU Polyurethane Shaft length 195 5 mm Shaft diameter 40 mm Membrane thickness 25 m Cable length 1...

Страница 49: ...n depending on the duration of the break Operation 0 C 50 C Storage 5 C 50 C 10 bar min 10 cm max 100 m depth 7 pin plug Connection Probe cable IP 68 100 m Cable plug IP 65 Plug instrument IP 65 any i...

Страница 50: ...t 20 C 0 05 of the saturation value t90 90 of the final displayed value after 30 s t99 99 of the final displayed value after 90 s 0 0027 g h 1 mg L 1 at 20 C 3 per month with permanent polarization 3...

Страница 51: ...ut shock hazard according to IEC 1010 or UL3101 All currents to the probe must not exceed 8 A even in case of a short circuit Pin Assignment Voltage maximum current 1 2 3 4 5 6 7 Ub 0V NTC 30kOhm NTC...

Страница 52: ...buildings factories and farms In more than 150 countries we have strong long standing relationships with customers who know us for our powerful combination of leading product brands and applications...

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