InPro 6800 Series O Sensors Instruction manual ...

1 InPro 6800 Series O2 SensorsInstruction manualBedienungsanleitungInstructions d utilisationInPro 680052 200 9532 InPro 6800 Series O2 sensor 12/25 mmInPro 6800 10/05 Mettler-Toledo GmbH52 200 953 Printed in SwitzerlandEnglishPage3 DeutschSeite 36 Fran aisPage 69 InPro 6800 Series O2 sensor 12/25 mm3 10/05 Mettler-Toledo GmbHInPro 6800 Printed in Switzerland52 200 953 InPro 6800 Series O2 SensorsInstruction manual4 InPro 6800 Series O2 sensor 12/25 mmInPro 6800 10/05 Mettler-Toledo GmbH52 200 953 Printed in notes .. on operating instructions .. use .. instructions .. of some typical applications .. in ATEX .. Rated data .. Special FM approved .. of delivery .. features .. the Connecting the InPro 6800 to a VP cable .. Connecting the VP cable to the transmitter ..165 Operation .. and polarizing .. Purpose of calibration .. What you have to know for calibration .. Single point calibration.

2 Dual point calibration ..206 Maintenance .. of the sensor .. Visual inspection .. Testing the sensor with the METTLER TOLEDO O2 sensor -Master InPro 6800 .. Testing the sensor via a transmitter .. the electrolyte, the membrane body or the interior ..278 Product specification ..289 Ordering .. parts .. transmitters .. housings ..3010 Theory of the polarographic sensor .. of the design of an oxygen electrode .. determining current .. voltage .. on partial pressure oxygen concentration ..35 ContentsInPro 6800 Series O2 sensor 12/25 mm5 10/05 Mettler-Toledo GmbHInPro 6800 Printed in Switzerland52 200 9531 IntroductionThank you for buying the InPro 6800 sensor fromMETTLER construction of the InPro 6800 Sensors employsleading edge technology and complies with safety regulations currently in force. Notwithstanding this, improper use could lead to hazards for the user or athird-party, and/or adverse effects on the plant or other equipment.

3 Therefore, the operating instruc-tions must be read and understood by the personsinvolved before work is started with the Instruction manual must always be stored close athand, in a place accessible to all people working withthe InPro you have questions, which are not or insufficientlyanswered in this Instruction manual , please contactyour METTLER TOLEDO supplier. They will be glad toassist 6800 Series O2 sensor 12/25 mmInPro 6800 10/05 Mettler-Toledo GmbH52 200 953 Printed in Switzerland2 Important on operating instructionsThese operating instructions contain all the informationneeded for safe and proper use of the InPro 6800 operating instructions are intended for personnelentrusted with the operation and maintenance of thesensors. It is assumed that these persons are familiarwith the equipment in which the sensor is notices and symbolsThis Instruction manual identifies safety instructionsand additional information by means of the followingsymbols:This symbol draws attention to safety instructions andwarnings of potential dangerwhich, if neglected,could result in injury to persons and/or damage symbol identifies additional information andinstructionswhich, if neglected, could lead to defects, inefficient operation and possible loss of production.

4 UseMettler-Toledo InPro 6800 Sensors are intended solelyfor inline measurement of the oxygen partial pressurein liquids and gases, as described in this use of these Sensors which differs from or exceedsthe scope of use described in this Instruction manualwill be regarded as inappropriate and incompatiblewith the intended purpose. The manufacturer/supplier accepts no responsibilitywhatsoever for any damage resulting from suchimproper use. The risk is borne entirely by the prerequisites for appropriate use include: compliance with the instructions, notes and requirements set out in this Instruction manual . acceptance of responsibility for regular inspection,maintenance and functional testing of all asso-ciated components, also including compliancewith local operational and plant safety regulations. compliance with all information and warningsgiven in the documentation relating to the productsused in conjunction with the sensor (housings,transmitters, etc.)

5 Observance of all safety regulations governing theequipment in which the sensor is 6800 Series O2 sensor 12/25 mm7 10/05 Mettler-Toledo GmbHInPro 6800 Printed in Switzerland52 200 953 correct equipment operation in conformance withthe prescribed environmental and operationalconditions, and admissible installation positions. consultation with Mettler-Toledo Process Analyticsin the event of any instructions The plant operator must be fully aware of thepotential risks and hazards attached to operation ofthe particular process or plant. The operator isresponsible for correct training of the workforce, forsigns and markings indicating sources of possibledanger, and for the selection of appropriate, state-of-the-art instrumentation. It is essential that personnel involved in thecommissioning, operation or maintenance of thesesensors or of any of the associated equipment ( , transmitters, etc.)

6 Be properly trained inthe process itself, as well as in the use andhandling of the associated equipment. Thisincludes having read and understood this instruc-tion manual . The safety of personnel as well as of the plant itselfis ultimately the responsibility of the plant applies in particular in the case of plantsoperating in hazardous zones. The oxygen Sensors and associated componentshave no effect on the process itself and cannotinfluence it in the sense of any form of controlsystem. Maintenance and service intervals and schedulesdepend on the application conditions, compositionof the sample media, plant equipment and signi-ficance of the safety control features of themeasuring system. Processes vary considerably,so that schedules, where such are specified, canonly be regarded as tentative and must in any casebe individually established and verified by the plantoperator.

7 Where specific safeguards such as locks, labels, orredundant measuring systems are necessary,these must be provided by the plant operator. A defective sensor must neither be installed nor putinto service. Only maintenance work described in this operatinginstruction may be performed on the Sensors . When changing faulty components, use onlyoriginal spare parts obtainable from your METTLERTOLEDO supplier (see spare parts list, ).8 InPro 6800 Series O2 sensor 12/25 mmInPro 6800 10/05 Mettler-Toledo GmbH52 200 953 Printed in Switzerland No modifications to the Sensors and the acces-sories are allowed. The manufacturer accepts noresponsibility for damages caused by unauthorisedmodifications. The risk is borne entirely by the of some typical applicationsBelow is a list of examples of typical fields of applica-tion for the oxygen Sensors . This list is not exhaustive. Measurement in liquids: Fermentation Yeast propagation Wort aeration Spring water conditioning Storage ans processing of fruit juicesMeasurement in gases: Monitoring of the oxygen limit value to protectproducts from oxidation.

8 Monitoring of the oxygen limit value in the exhaustair of fermentation vessels. Monitoring of oxygen limit values during inertiza-tion processes. Measurement of oxygen concentrations in processgas in Ex-zonesNote:For an installation in Ex-zones please read the guidelines following hereafter:Ex-classification ATEX:II 1/2GD EEx ia IIC T6/T5/T4/T3IP6X T 69 C / T 81 C / T 109 C / T 161 CMarking and number of the test certificate:SNCH 01 ATEX 3277 XEx-classification FM approved:IS / I, II, III / 1 / ABCDEFG / T6 Ta = 60 C- 53 800 002; EntityInPro 6800 Series O2 sensor 12/25 mm9 10/05 Mettler-Toledo GmbHInPro 6800 Printed in Switzerland52 200 IntroductionAccording to RL 94/9/EG (ATEX 95) Appendix l, lnPro 6 XXX*/*/*/*/* oxygen Sensors are devices groupll, category 1/2G and according to RL 99/92/EG (ATEX137) may be used in zones 0/1 or 0/2 and gas groupsllA, llB and llC that are potentially explosive due tocombustible substances in the temperatures classesT3 to use/installation, the requirements of EN 60079-14must be to RL 94/9/EG (ATEX 95) Appendix l, lnPro 6 XXX*/*/*/*/* oxygen Sensors are devices groupll, category 1/2D and according to RL 99/92/EG (ATEX137)

9 May also be used in zones 20/21 that containcombustible use/installation, the requirements of EN 50281-1-2 must be sensor measuring circuit, the temperature mea-suring circuit and the data chip circuit are part of acommon intrinsically safe system and are for opera-tion connected to a separately certified sensor measuring circuit, the temperature mea-suring circuit and the data chip circuit as part of anintrinsically safe system are isolated from the not-intrinsically safe electric circuits up to a maximumrated voltage of 375 V and from grounded parts up toa maximum rated voltage of 30 Rated dataMeasuring circuit:Fail-safe ignition protection class EEx ia IIC only forconnection to a certified fail-safe values:Ui 16 V, Ii 190 mA, Pi 200 mWLi= 0 (effective internal inductivity)Ci= 900 pF (effective internal capacitance)Notes:The above maximum values are each the total of allindividual circuits of the associated intrinsically safepower supply and 6800 Series O2 sensor 12/25 mmInPro 6800 10/05 Mettler-Toledo GmbH52 200 953 Printed in Special conditions The maximum permissible environment temperatures for the zone 0 (combustiblegases or combustible liquids) are in accordancewith the temperature classes shown in the tablebelow:Temperature classMax.

10 Enviroment temperatureT 668 CT 580 CT 4108 CT 3160 C The maximum surface temperatures for the zone20 (combustible dusts) are in accordance with the environment resp. medium temperatures shown inthe table below:Surface Max. enviroment temperatureT69 C68 CT81 C80 CT 109 C108 CT 161 C160 CAdditionally the requirements from section 6 of EN50281-1-2 have to be followed. The capacitance and inductance of the connectingcable must be taken into account in the design. The oxygen Sensors (O2sensors) can be usedin/with the housings InFit 76*-** resp. InTrac 7**-** or in/with other suitable housings in hazardousareas. The metal body of the O2sensors resp. the safetyweld-in-sockets resp. the independent housing are,if necessary, to be included into the periodic pres-sure test of the unit. The metal body of the O2sensors resp. the safetyweld-in-sockets resp. the independant housingmust be electrically connected to the potentialequalizing system of the 6800 Series O2 sensor 12/25 mm11 10/05 Mettler-Toledo GmbHInPro 6800 Printed in Switzerland52 200 FM approvedNon-Hazardous LocationHazardous (Classified) LocationClass I, Division 1, Groups A, B, C and DClass II, Division 1, Groups E, F and GClass III, Division 1T6 Ta = 60 CAny FMRC Approved SingleMulti-Channel Barrier or ApparatusProbeMettler-Toledo GmbHProcess AnalyticsCH-8902 Urdorf11/12/2003 F.