SMARTSENS PH 8150 Handbook
Contents
1. 4 www krohne com 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en SMARTSENS PH 8150 SAFETY INSTRUCTIONS p 1 1 Intended use CAUTION Responsibility tor the use of the measuring devices with regard to suitability intended use and corrosion resistance of the used materials against the measured fluid lies solely with the operator INFORMATION The manufacturer is not liable for any damage resulting from improper use or use for other than the intended purpose The intended use of the sensor SMARTSENS PH 8150 is the measurement of pH in liquids 1 2 Safety instructions from the manufacturer 1 2 1 Copyright and data protection The contents of this document have been created with great care Nevertheless we provide no guarantee that the contents are correct complete or up to date The contents and works in this document are subject to copyright Contributions from third parties are identified as such Reproduction processing dissemination and any type of use beyond what is permitted under copyright requires written authorisation from the respective author and or the manufacturer The manufacturer tries always to observe the copyrights of others and to draw on works created in house or works In the public domain The collection of personal data such as names street addresses or e mail addresses in the manufacturer s documents is always on a voluntary basis whenever possible Whenever feasible it is always possible to2. Power supply 15 30 VDC loop powered 4 20 mA HART protocol Minimum 0 Q maximum R Usy 15 VDC 22 mA i a 290 Q loop resistance for HART communication Multidrop operation 4mA Approvals CE This device fulfils the statutory requirements of the EC directives The manufacturer certifies successful testing of the product by applying the CE mark Shock resistance IEC 60068 2 31 Environmental testing Part 2 Test Ec Electromagnetic compatibility Acc to EN 61326 NAMUR NE 21 Low voltage directive Safety requirements for electrical equipment for measurement control and laboratory use in accordance with EN 61010 1 2001 INFORMATION For further information contact your local sales office 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en www krohne com 27 fa TECHNICAL DATA 6 3 Dimensions Figure 6 4 SMARTSENS PH 8150 with VP 2 0 Dimensions imansins etl tw te a T oo d 28 www krohne com 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en DESCRIPTION OF HART INTERFACE 7 1 General description The open HART protocol which can be used for free is integrated into the sensor for communication Devices which support the HART protocol are classified as either operating devices or field devices When it comes to operating devices Master both manual control units Secondary Master and PC supported workstations Primary Master are used in f
3. 7 5 Field Communicator 475 FC 475 The Field Communicator is a hand terminal from Emerson Process Management that is designed to configure HART and Foundation Fieldbus devices Device Descriptions DDs are used to integrate different devices into the Field Communicator 7 5 1 Installation The HART Device Description for the sensor must be installed on the Field Communicator Otherwise only the functions of a generic DD are available to the user and the entire device controlis not possible A Field Communicator Easy Upgrade Programming Utility is required to install the DDs on the Field Communicator The Field Communicator must be equipped with a system card with Easy Upgrade Option For details consult the Field Communicator User s Manual 32 www krohne com 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en SMARTSENS PH 8150 DESCRIPTION OF HART INTERFACE 7 5 2 Operation INFORMATION For more detailed information see Appendix A Menu tree for Basic DD Operating the sensor via the Field Communicator is very similar to manual device control using the keyboard Limitation The service menu parameters for the senor are supported but a simulation for the current output Is not possible Parameter protection for custody transfer is the same as on the SMARTMAC 200 W display Other specific protective functions such as the passwords for the quick setup menu and the setup menu are not supported with HART 7 6
4. Ml SMARTSENS PH 8150 Digital pH sensor for the chemical industry Electronic Revision ER 3 3 x SW REV 1 x x KROHNE 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en EIMPRINT ii All rights reserved It is prohibited to reproduce this documentation or any part thereof without the prior written authorisation of KROHNE Messtechnik GmbH Subject to change without notice Copyright 2013 by KROHNE Messtechnik GmbH Ludwig Krohne Str 5 47058 Duisburg Germany www krohne com 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en CONTENTS E 1 Safety instructions D i WUC TYG CONUS Casa te ter aen EENE D 1 2 Safety instructions from the manufact re asane a A D EZI Copyriohtand data protection neira a aaa E E A ENAA D E2 Dicc lanne aaa a a a a Seenatiaen 6 LZS Product liability and warranty sisin ansc aiea a T et at 6 1 2 4 Information concerning the documentation vicacoocsassesteraiacecssaseastbanteiotniagaantennen nn naeaiarencnoiees 6 t23 Warningsand symbols Used inciainciciebiadineigeblnnnyiel 7 t3 Safety instr ctions forthe operato i scienisddponia le a ata aaah 7 2 Device description 8 2A COPE OFE AY Y Rene a ae tere Re A A A E E 8 22 Device desch UON esasa a E E 9 TEE O E E A E A T E ter ae EA 9 ZS INNING CACC a6 seas cta AA 10 3 Installation 11 3 General NOTES OM INStaWATON sccatersvacndaseedsrsvectndaesueaan ead T A T 11 9 2 Storage and her 11S 9 9 geen eer mente ree eet nee tts tee ent Oe en Oe m
5. 4002543601 MA SMARTSENS PH 8150 R01 en www krohne com 25 fa TECHNICAL DATA 6 2 Technical data INFORMATION i e The following data is provided for general applications If you require data that is more relevant to your specific application please contact us or your local sales office e Additional information certificates special tools software and complete product documentation can be downloaded free of charge from the website Download Center Measuring system Measuring principle Potentiometric Measuring range 0 14 pH Design Shaft diameter 12 mm 0 47 Insertion length 120 mm 4 72 225 mm 8 86 Connector VarioPin 2 0 VP 2 0 Operating conditions Temperature range 0 130 C 32 266 F Conductivity Min 150 uS cm Installation conditions Ingress protection IP 68 Process connection PG 13 5 Materials Sensor shaft Glass Inner buffer pH 7 0 Reference Duralid gel Diaphragm 2 x open hole Gasket EPDM FDA Sensor head Nickel plated brass body with VP 2 0 connector PEEK body with VP 2 0 connector in preparation 26 www krohne com 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en TECHNICAL DATA B i Communication pH range 0 14 pH Resolution pH range 0 02 pH Output signal 4 20 mA passive HART 7 FSK 1200 physical layer definition on top of the current loop Filter adjustable 1 60 seconds Electrical connections
6. C 77 F the temperature error is zero If temperature or pH changes the temperature error is calculated using the following formula 8 03 9 12 9 06 10 0 as 11 00 12 00 13 00 CO eo No O O O SO SO aloalo ol BB Ws NN gt _ A _ olol ojojo Mlalo lalo OINI amp ae _ A _ _ i A _ NIAI O J o1 01 ooa A _ NINININI BR NI amp O CO CO amp o AJIN o K Oo NO OO O O NO O w NI 0 03 pH difference pH or 0 03 pH difference K 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en www krohne com 39 KROHNE 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en Subject to change without notice KROHNE product overview e Electromagnetic flowmeters e Variable area flowmeters e Ultrasonic flowmeters e Mass flowmeters e Vortex flowmeters e Flow controllers e Level meters e Temperature meters e Pressure meters e Analysis products e Products and systems for the oil amp gas industry e Measuring systems for the marine industry Head Office KROHNE Messtechnik GmbH Ludwig Krohne Str 5 47058 Duisburg Germany Tel 49 0 203 301 0 Fax 49 0 203 301 10389 info akrohne de The current list of all KROHNE contacts and addresses can be found at www krohne com
7. Do a check of the packing list to make sure that you have all the elements given in the order INFORMATION Look at the device nameplate to ensure that the device is delivered according to your order 3 2 Storage and transport gt CAUTION Do not store the sensor tip dry This will shorten lifetime considerably Always store the pH sensor tip wet in a 3 molar KCl solution when not in use Saltless water must be avoided since this would leak the KCI ions The original packing in which the sensor tip was delivered contains a plastic tube with KCl solution and therefore is suitable for storage and transport e Since the pH sensor is made out of glass it is very fragile Avoid shocks of any kind e Do not touch or scratch the membrane glass e Store the sensor in its original packaging in a dry dust free location Keep it away from dirt If necessary clean it as described on page 21 3 3 Installation procedure ac Because a new pH sensor needs to be calibrated before it Is installed into its final measuring location it is important to follow the installation order M Unpack the sensor D Connect the sensor to the junction box or directly to the process control system Calibrate the sensor Install the sensor into its final measuring location The required steps are explained in the following sections 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en www krohne com 1 1 INSTALLATION 3 4 Pre installation req
8. SD 200 W R SJB 200 W for HART communication and with resistance R A Sensors Sensors Displays LCase control system F PLC Ipracesscontobaystem O I 1 Plc tpr cess comtrotsyste 0 S O HART 1 HART 2 HART 1 HART 2 Sensor Display PLC Sensor Display PLC Figure 3 5 SJB 200 W for HART communication without resistance R left side SJB 200 W right side SJB 200 W for HART communication and without SJB 200 W resistance R Sensor Sensor PLC process control system PLC process control system E PLC process control system o PLC process control system 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en www krohne com 15 INSTALLATION 3 6 Installing the sensor 3 6 1 General installation instructions The membrane glass must always have full contact with the measuring medium The mounting position of the sensor should not deviate more than 75 from vertical position sensor tip pointing downwards Doing otherwise might cause internal air bubbles to float into the membrane glass This would interrupt the electrical contact between the inner buffer solution and the glass surface Figure 3 6 Installation requirements Measuring medium 2 Maximum deviation of 75 from vertical position 16 www krohne com 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en ESSE en OPERATION 4 1 Calibration 4 1 1 Calibration gt Gr Manual hold e Start calibration function in menu mode
9. Warnings and symbols used Safety warnings are indicated by the following symbols DANGER This information refers to the immediate danger when working with electricity DANGER This warning refers to the immediate danger of burns caused by heat or hot surfaces DANGER This warning refers to the immediate danger when using this device in a hazardous atmosphere DANGER These warnings must be observed without fail Even partial disregard of this warning can lead to serious health problems and even death There is also the risk of seriously damaging the device or parts of the operator s plant WARNING Disregaraing this safety warning even if only in part poses the risk of serious health problems There is also the risk of damaging the device or parts of the operator s plant CAUTION Disregarding these instructions can result in damage to the device or to parts of the operator s plant INFORMATION These instructions contain important information for the handling of the device LEGAL NOTICE This note contains information on statutory directives and standards e HANDLING This symbol designates all instructions for actions to be carried out by the operator in the specified sequence gt RESULT This symbol refers to all important consequences of the previous actions Diam gt gt amp eB amp 1 3 Safety instructions for the operator WARNING N n general devices from the manufacturer may only be installed commi
10. make use of the offerings and services without providing any personal data We draw your attention to the fact that data transmission over the Internet e g when communicating by e mail may involve gaps in security It is not possible to protect such data completely against access by third parties We hereby expressly prohibit the use of the contact data published as part of our duty to publish an Imprint for the purpose of sending us any advertising or informational materials that we have not expressly requested 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en www krohne com 5 MI SAFETY INSTRUCTIONS 1 2 2 Disclaimer The manufacturer will not be liable for any damage of any kind by using Its product including but not limited to direct indirect or incidental and consequential damages This disclaimer does not apply in case the manufacturer has acted on purpose or with gross negligence In the event any applicable law does not allow such limitations on implied warranties or the exclusion of limitation of certain damages you may If such law applies to you not be subject to some or all of the above disclaimer exclusions or limitations Any product purchased from the manufacturer is warranted in accordance with the relevant product documentation and our Terms and Conditions of Sale The manufacturer reserves the right to alter the content of its documents including this disclaimer in any way at any time for any reason wi
11. present any problems CAUTION Should you nevertheless need to return a device for inspection or repair please pay strict attention to the following points e Due to statutory regulations on environmental protection and safeguarding the health and safety of our personnel manufacturer may only handle test and repair returned devices that have been in contact with products without risk to personnel and environment e This means that the manufacturer can only service this device if it is accompanied by the following certificate see next section confirming that the device is safe to handle CAUTION lf the device has been operated with toxic caustic flammable or water endangering products you are kindly requested e to check and ensure if necessary by rinsing or neutralising that all cavities are free from such dangerous substances e to enclose a certificate with the device confirming that is safe to handle and stating the product used 22 www krohne com 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en ENEN SERVICE g 5 3 2 Form for copying to accompany a returned device The device has been operated with the following medium Manufacturer s order no or serial no flammable We checked that all cavities in the device are free from such substances We have flushed out and neutralized all cavities in the device We hereby confirm that there is no risk to persons or the environment through any residual media
12. 0 R01 en www krohne com 3 E CONTENTS 6 Technical data 24 6 Measuring Principle icusz ce aaaanatonaacereteceaesacteadadsnis acnte fedavoassae adesnceaadeatvancalvanaanceuaiabsoancesaete 24 Or DI EME SUMMER CINE nienia Sone ccarne sateen E a NA 24 eZ VECNE AiG Ud t 2e o ence aseed ncbs oadosalaxdacinaseitaxtvadastaceydasesGuanseends aes e Nese daaaasciieediagaeaees nana euaucen 26 6o DIMENSIONS ee ean ere ne me re ee on ee ee ee Pere 28 7 Description of HART interface 29 fl General desc ipu oNu e a e aE T 29 LA SOMWALC WIS LORY crer nna n a NA 29 PnC OAN CCU ONV AN A AA Aa net a 30 7 3 1 Point to Point connection analogue digital Mod eiiuc2 ticsriiccaei ested 31 7 4 Inputs outputs and HART dynamic variables and device variables c cccssesereeees 32 Ao FIClG Communica Orao FEA te erie ter cack bart aa iA 32 Poel netata HOi a saita eater eta seo aad ne edentnaune aso teneese 32 eka ry A Operaio aeaa steerer Ne nee a A eee ee 33 7 6 Field Device Tool Device Type Manager FDT DTM cccccccsccssseeeesseeessseeesteeeensnens 33 TOI Patalano sani Aaa a cee aah als ite N eis aatt iat id ae 33 7 7 Overview Basic DD menu tree positions in menu tree cece cceeessececeesseeeeeessseeeeeeees 34 7 8 Basic DD menu tree details for settings ccccccccsccccssecceeseececsseeeceseeeensseeeentneess 35 8 Appendix 38 Gk pas a TUnchon Or MNV heyen a E E 38 9 2 PH temperature dependen Cy crearsi inpe a cea 39
13. 13 4002543601 MA SMARTSENS PH 8150 R01 en SSS OPERATION 4 2 Troubleshooting The pH sensor Mechanical damage of the Exchange sensor does not delivera glass bulb e g small Signal cracks This will shortcut the ion exchange and deliver a pH 7 reading Open circuit Check the cable wiring of the sensor cable on the junction box Otherwise connect the sensor to the primary master e g PACTware FTD DTM or to the HART handheld to exclude a sensor damage The pH sensor The diaphragm in the Clean the diaphragm with hot soap or acid using a soft tissue delivers an reference half cell does details on page 21 unstable signal not provide good contact Submerge sensor in water and increase the temperature to to the process medium due to drying up or 50 4 60 C 122 140 F coatings Submerge sensor in 3 molar KCl solution at ambient temperature The decrease in temperature will cause the reference half cell to suck in KCl solution through the diaphragm and regenerate the diaphragms functionality 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en www krohne com 19 OPERATION SMARTSENS PH 8150 4 3 Status messages and diagnostic information 20 Measurements out of specification S01 pH value gt pH max Consider the measuring range limits pH value out of range otherwise select a suitable sensor for the S02 pH value lt pH min process conditions of the application pH value out of range S0
14. 2013 4002543601 MA SMARTSENS PH 8150 R01 en DEVICE DESCRIPTION 2 2 Device description 2 2 1 pH sensor Figure 2 2 Construction of the sensor Nickel plated brass body with VP 2 0 connector or PEEK body with VP 2 0 connector in preparation PG 13 5 thread Washer O ring Glass shaft Diaphragm Membrane glass 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en www krohne com 9 DEVICE DESCRIPTION 2 3 Nameplate gt KROHNE Duisburg Germany aT ee PH _XXXX a P 1234567 ain 1234567890 D op C 4 0102 A gt Figure 2 3 Example for a nameplate on the sensor body Manufacturer 2 Device name Order code Serial number Approvals Observe the operation and installation instruction gt SmaRTSENE PH XXXX Figure 2 4 Example for a nameplate on the glass shaft Manufacturer 2 Device name INFORMATION Look at the device nameplate to ensure that the device is delivered according to your order The sensor type is specified on the label of the sensor package and on the sensor itself 10 www krohne com 04 2013 4002543601 MA SMARTSENS PH 8150 R01 SMARTSENS PH 8150 INSTALLATION 3 1 General notes on installation ito mo te INFORMATION Inspect the cartons carefully for damages or signs of rough handling Report damage to the carrier and to the local office of the manufacturer INFORMATION
15. 3 Temp value gt Temp max Temperature value out of range S04 Temp value lt Temp min Temperature value out of range Failure F01 Glass resistance gt max MOhm Replace the sensor F02 Glass resistance lt min MOhm Maintenance M01 Slope lt 65 mV pH Recalibrate the sensor For more information M02 Slope gt 50 mV pH refer to Calibration on page 17 M03 Zero point lt 99 mV Zero point gt 99 mV M05 Maintenance interval expired www krohne com 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en ENEN SERVICE g 5 1 Maintenance 5 1 1 Cleaning ge e Slight dirt residues or dust Rinse the sensor tip with tap water and clean it with a soft tissue e Oily and greasy coatings Remove with a warm soap solution and rinse with water e Hardness deposits or metal hydroxide deposits Remove with 10 citric acid or hypochloric acid and rinse with water 5 1 2 Aging and re calibration During operation but already during storage sensors age due to poisoning effects of the inner buffer system Therefore it is important to re calibrate the sensor in regular intervals Consider status messages and diagnostic Information When the sensor becomes too old to provide reliable measurements an error message appears after the calibration procedure In this case the sensor has to be replaced Aging effects of sensor e Decrease of slope due to abrasion drying corrosion of glass bulb coating and leaching The slope sh
16. E Pee Pe nee ree 11 3 0 INStalbatlOn procedure mansessa a Eaa aa aE E Munametiedepedesienn Mee 11 3 4 Pre installaiontreguiremeNt Ss ranen a a a a 12 Jo Electrical conne CUON area N a E 12 3 5 1 Connecting the cable to the SCNSOP cccccccccsseeseeeeeeeeceeeeeseeeeeeeeseaaaaaaeeeeseeeaaaeseeeeeeeeeneeaas 13 3 92 C nnecting the sensor table sunneti e E E E EEE 13 3 5 3 Connecting with junction box SJB 200 WV ss savas ta inonsrouslewia cderusbvaras endian ved atlduaduacnteninedgeeeddimmeveaalt 14 O00 MVSLALUMG the SS CIS ON enen E T 16 3 02 General instalation TSt UCUN Sresi E E tues gslennee ae eecsionaieeadiecui 16 4 Operation 17 DM CauUDrat ON aere a e a newb eae aameclonanee 17 AA CDr a Oese aa ra a E 17 42 Nee UN CS SI NOON mena a a e nea ODE eee tmateniaies 19 4 3 Status messages and diagnostic INFOFMALtION cccccceececeeeseeeeeeeeeeeeeeeeeeeeesaeeeeesaeeeeeeeas 20 5 Service 21 Ori PVG Cl Val Enskan a a a N 21 De Veal Clea mino uen seaaeteewnataa aa ine 21 D6 eZ AGING and re caU pratio N enico a aa ES 21 D2 AVAILADIULY OF Erv CES oren EE E e EEE 22 5 3 Returning the device to the ManmufactUrell ccceccecceseseeeeececeeeeeeeescaaeeeeeesseeseeeeesenaes 22 D3 hGeneras tin orma On eenen a a a AA eos aang 22 5 3 2 Form for copying to accompany a returned AeVICE ceecccceesssceceeseeeceesaeeeeeesseeeeensaeeeens 23 JA NN SIO OS a restate O 23 04 2013 4002543601 MA SMARTSENS PH 815
17. Field Device Tool Device Type Manager FDT DTM A Field Device Tool Container FDT Container is basically a PC program used to configure a field device via HART To adapt to different devices the FDT container uses a so called Device Type Manager DTM 7 6 1 Installation If the DTM for the sensor has not yet been installed on the FDT Container setup is required and is available for download from the website or on CD ROM See the supplied documentation for information on how to install and set up the DIM 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en www krohne com 33 DESCRIPTION OF HART INTERFACE 7 7 Overview Basic DD menu tree positions in menu tree Meinmenu Seber 1 Measuring value 1 pH value 2 Temperature 3 Electrode voltage 4 Loop current 5 Error 6 Device state 2 Hold function 3 1 0 4 Calibration 5 Autoclaving counter 6 Input user password 3 Logbook 1 Calibration logbook 2 Error logbook 4 Setup 1 Process input 2 1 0 3 1 0 HART 4 Device 5 Service 1 Service calibration 2 Service parameter 3 Passwords 4 Sensor lock 34 www krohne com 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en DESCRIPTION OF HART INTERFACE 7 8 Basic DD menu tree details for settings 1 Measuring value 1 pH value Display of the measured pH value on process control system HART handheld or display 2 Temperature Display of the measured temperature value in C F o
18. Quick Setup or Setup e Activate the manual hold to avoid an alarm e Select on e Press Next to proceed Temperature compensation e Set the temperature compensation for calibration e Select between automatic or manual Ifyou have selected manual temperature compensation please enter the temperature of the pH buffer solution The default is 25 C 77 F e Press Next to proceed Start calibration procedure e Dip the sensor into the first pH buffer solution e Press Next to proceed The recognition of pH buffer solution 1 starts After approx 10 seconds the measured value will appear e Confirm the recognised pH buffer solution or change the value of the pH buffer solution manually If the sensor could not recognise the pH buffer solution the message buffer not recognised will appear In this case abort the calibration and start again or replace the sensor e Clean the sensor with demineralised water v v N Q im Figure 4 1 Calibration procedure A 2 D 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en www krohne com 17 OPERATION ge e Dip the sensor into the second pH buffer solution i e Press Next to proceed The recognition of pH buffer solution 2 starts After approx 10 seconds the measured value will appear e Confirm the recognised pH buffer solution or change the value of the buffer solution manually If the sensor could not recognise the pH buffer solutio
19. contained in the device when it is returned 5 4 Disposal CAUTION A N Disposal must be carried out in accordance with legislation applicable in your country 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en www krohne com 23 fa TECHNICAL DATA 6 1 Measuring principle 6 1 1 pH measurement Figure 6 1 Measuring principle for pH measurement Reference electrode D Measuring electrode Diaphragm in contact with KCl solution and measuring medium Inner pH 7 buffer solution Surface potential on the inside contact with buffer solution pH sensitive glass membrane glass Surface potential on the outside contact with measuring medium Measuring medium The measuring principle of a pH sensor is based on a pH sensitive glass membrane glass When the pH sensitive glass gets into contact with a liquid a thin layer of hydrated gel develops on the surface enabling an ion exchange between the glass surface and the liquid The so called Nernst potential builds up on the glass surface If both sides of the glass are In contact with liquids a voltage may be detected between the two surface potentials The voltage correlates to the difference in H ion concentration and thus to the difference of pH values in both liquids The pH sensor contains an Internal buffer solution with a known pH value If the pH value of the measuring medium on the outside of the sensor is equal to the pH value of the Inner b
20. d administrator Set password for administrator Reset password Reset all passwords only administrator 4 Sensor lock Select between yes or no to lock the sensor If you select yes the setting is not reversible anymore and the sensor Is invalid for use The HART communication is not possible anymore 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en www krohne com 37 EX APPENDIX enG 8 1 pH as a function of mV The pH value is the negative decadative logarithm of the hydrogen ion concentration and It Is directly related to the proportion of hydrogen ions H to hydroxide ions OH in the media The pH sensor measures excess or deficit of the hydrogen ions and gives a proportional millivolt signal as output The signal is 59 16 mV per 1 pH at 25 C 77 F In clean water there is a total balance between hydrogen ions and hydroxide ions the output from the electrode is 0 0 mV and pH is 7 The millivolt signal is measured by the sensor and the corresponding pH value is directly calculated by the sensor PH fons mad OF fns mot Example Sa 2 a oo 0 te 5 ooo aooo T Eoo a a6 S vat 35513 ooooooooooooor OT 38 www krohne com 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en ESS APPENDIX 8 2 pH temperature dependency The output from a pH sensor varies with the temperature in a predictable way The size of the variation depends on both the temperature and the pH being measured DEAETE At pH 7 and 25
21. mpensation automatic manual automatic as default temperature compensation Is activated 25 C as default Calibration Start calibration procedure For more information refer to Calibration on page 17 Set maintenance interval in days 000 999 days 000 as default Yes No No as default Maintenance interval Reset maintenance interval 2 1 0 Set measuring value at 4 mA min pH 0 Set measuring value at 20 mA max pH 14 Set time constant 1 60 seconds 3 1 0 HART TAG Set TAG for measuring loop Set long TAG Display of previous long TAG Display messages 24 packed ASCII Display polling address Select between enable or disable to activate or deactivate the loop current mode Device variables Display PV pH with min and max limits Display SV electrode voltage in mV Display TV temperature in C F with min and max limits Display 4V resistance 36 www krohne com 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en DESCRIPTION OF HART INTERFACE 4 Device Information Sensor information Order code Device name Serial number Calibration maintenance Operating parameters o Commissioning Set date of commissioning 5 Service 1 Service calibration Trimming at 4 mA Trimming at 20 mA Load factory setting 3 Password Password protection Activate or deactivate the password protection Select between on and off Password operator Set password for operator Passwor
22. n process control system HART handheld or display 3 Electrode voltage Display of the measured electrode voltage in mV on process control system HART handheld or display 4 Loop current Display of the measured loop current in mA on process control system HART handheld or display 5 Error Display of status messages and diagnostic information For further information refer to Status messages and diagnostic information on page 20 6 Device state Display of status information icon for sensor according to NAMUR NE 107 2 Quick setup 1 TAG Set the TAG number for the measuring loop 2 Manual hold Activate or deactivate the manual hold function Select between yes or no 3 1 0 Set measuring value at 4 mA min pH 0 Set measuring value at 20 mA max pH 14 Set time constant 1 60 seconds 1 second as default 4 Calibration Start calibration procedure For more information refer to Calibration on page 17 5 Autoclaving counter Rise autoclaving counter yes no 6 Input user password Set password 3 Logbooks 1 Calibration logbook Logbook for the last 20 calibration cycles 2 Error logbook Display errors 04 2013 4002543601 MA SMARTSENS PH 8150 RO1 en www krohne com 35 DESCRIPTION OF HART INTERFACE 4 Setup 1 Process input Temperature Set temperature unit C F Set temperature offset Display date of offset calibration Set temperature value 5 50 C only if manual Set temperature co
23. n the message buffer not recognised will appear In this case abort the calibration and start again or replace the sensor After a successful calibration the calibration values slope and zero points appear slope in mV pH and zero point in mV e Press Next to proceed Ifthe calibration was not successful the error message Error Out of range appears e Press Next to proceed gt After a successful calibration you have the possibility to store the date in the sensor Press Next to proceed Set the date with DD MM YYYY Press Next to proceed Select off to deactivate the hold function A pH calibration is necessary in regular intervals or when installing a new pH sensor In a fully functional sensor the optimal slope is 59 mV for each pH unit and the optimal zero point is 0 mV at pH 7 The slope should at least have a value between 50 65 mV per pH unit Re calibrate the sensor if the slope does not approximate those limits The pH sensor ages the slope gets flatter and the zero error Increases CAUTION e Never touch or scratch the pH sensitive glass tip of the sensor gt e Make sure that the sensor tip is clean and dust free If necessary clean the tip as described on page 21 CAUTION Moisture inside the sensor connector must be avoided Moisture may cause a shortcut and deliver erratic readings f moisture has entered the connector dry it with air e g hair blower gt 18 www krohne com 04 20
24. or example a control centre HART field devices include measuring sensors signal converters and actuators The field devices range from 2 wire to intrinsically safe versions for use in hazardous areas The HART data are superimposed over the analogue 4 20 mA signal via FSK modem This way all of the connected devices can communicate digitally with one another via the HART protocol while simultaneously transmitting the analogue signals When it comes to the field devices and secondary masters the FSK or HART modem is integrated If a PC is used an external modem must be connected to the serial interface There are however other connection variants which can be seen in the following connection figures 7 2 Software history INFORMATION i n the table below xis a placeholder for possible multi digit alphanumeric combinations depending on the available version Release date SW version HW version HART HART identification codes and revision numbers HART Universal Revision yd FC 475 system SW Rev a PDM version Forerio 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en www krohne com 29 DESCRIPTION OF HART INTERFACE 7 3 Connection variants The sensor is a 2 wire device with a passive 4 20 mA current output and HART interface e Multidrop mode is supported In a multidrop communication system more than 2 devices are connected to a common transmission cable e Burst mode is not s
25. ould be lt 50 mV pH An optimal value is 59 mV pH at 25 C 77 F When the slope rises above 50 mV pH an error message is displayed and the sensor has to be replaced The slope of the sensor Is displayed after each calibration procedure e Shift of zero point due to leaching contamination of reference half cell or increased resistance between glass bulb and reference half cell The zero point should lie between 58 58 mV at pH 7 An optimal value is 0 mV at pH 7 The zero point of the sensor is displayed after each calibration procedure mV 100 100 Figure 5 1 Aging effects of sensor Horizontal shift of slope Vertical shift of slope Decrease of slope 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en www krohne com 21 B SERVICE INFORMATION The lifetime expectation depends heavily on the application The right choice of the sensor type is very important 5 2 Availability of services The manufacturer offers a range of services to support the customer after expiration of the warranty These Include repair maintenance technical support and training INFORMATION For more precise information please contact your local sales office 5 3 Returning the device to the manufacturer 5 3 1 General information This device has been carefully manufactured and tested If installed and operated in accordance with these operating instructions it will rarely
26. ssioned operated and maintained by properly trained and authorized personnel This document is provided to help you establish operating conditions which will permit safe and efficient use of this device 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en www krohne com 7 DEVICE DESCRIPTION 2 1 Scope of delivery INFORMATION i Inspect the cartons carefully for damages or signs of rough handling Report damage to the carrier and to the local office of the manufacturer INFORMATION Do a check of the packing list to make sure that you have all the elements given in the order INFORMATION Look at the device nameplate to ensure that the device is delivered according to your order f e Figure 2 1 Standard scope of delivery Ordered sensor 2 Documentation Optional accessories SENSOFIT FLOW 1000 series Flow through assemblies SENSOFIT IMM 1000 2000 series Immersion assemblies SENSOFIT INS 1000 7000 series Insertion assemblies SENSOFIT RET RAM 5000 series Manual and pneumatic retractable assemblies SMARTSENS cable VP 2 0 various lengths SMARTMAC 200 W Wall mount device with calibration and configuration functions SD 200 W R Wall or rack mount display SMARTBRIDGE USB interface cable SJB 200 W Junction box Consumables Spare parts available pH buffer solutions INFORMATION For further information contact your local sales office OO www krohne com 04
27. sure that both cable and sensor connector are absolutely dry e Screw the cable connector on the sensor and tighten it by hand 3 9 2 Connecting the sensor cable DANGER A N All work on the electrical connections may only be carried out with the power disconnected INFORMATION Look at the device nameplate to ensure that the device is delivered according to your order Cable pH ORP W Sensor VarioPin VP Black inner coax shield Ub 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en www krohne com 13 INSTALLATION SMARTSENS PH 8150 3 9 3 Connecting with junction box SJB 200 W HART 1 HART 2 HART 1 HART 2 F HLH Sensor Display PLC Sensor Figure 3 3 SJB 200 W with SMARTMAC 200 W and with resistance R left side SJB 200 W with SMARTMAC 200 W and without resistance R right side SJB 200 W with SMARTMAC 200 W and with SJB 200 W with SMARTMAC 200 W and resistance R without resistance R B sensors Sensor e sensor O o osy O o o PLC process control system PLC process control system PLC process control system to PLC process control system www krohne com 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en INSTALLATION HART 1 HART 2 HART 1 HART 2 T OOOO z A B F Sensor Display PLC Sensor Display Figure 3 4 SJB 200 W and SD 200 W R left side SJB 200 W for HART communication and with resistance R right side SJB 200 W and
28. thout prior notification and will not be liable in any way for possible consequences of such changes 1 2 3 Product liability and warranty The operator shall bear responsibility for the suitability of the device for the specific purpose The manufacturer accepts no Liability for the consequences of misuse by the operator Improper installation and operation of the devices systems will cause the warranty to be void The respective Standard Terms and Conditions which form the basis for the sales contract shall also apply 1 2 4 Information concerning the documentation To prevent any Injury to the user or damage to the device it is essential that you read the information in this document and observe applicable national standards safety requirements and accident prevention regulations If this document is not in your native language and If you have any problems understanding the text we advise you to contact your local office for assistance The manufacturer can not accept responsibility for any damage or Injury caused by misunderstanding of the information in this document This document is provided to help you establish operating conditions which will permit safe and efficient use of this device Special considerations and precautions are also described in the document which appear in the form of underneath icons 6 www krohne com 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en SMARTSENS PH 8150 SAFETY INSTRUCTIONS 1 2 5
29. uffer the resulting voltage is 0 V If the pH value of the medium differs from the Internal pH value a voltage between the Internal and the external layer can be measured From the resulting voltage the pH difference of the two liquids can be calculated The voltage is measured using a measuring electrode and a reference electrode both are built into the sensor The measuring electrode Is In contact with the known buffer solution in the pH sensitive glass bulb The reference electrode is immersed into a saturated solution of potassium chloride KCI The KCL solution itself is in electrical contact with the measuring medium by means of a diaphragm The diaphragm prevents the measuring medium from penetrating into the reference system but still allows electrical contact with the measuring medium 24 www krohne com 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en TECHNICAL DATA B The voltage change of a pH sensor at 25 C 77 F is around 59 mV for each pH unit This is also called the slope of the pH sensor The slope is temperature dependent and decreases over life time of the sensor Figure 6 2 Optimal slope at 25 C 77 F To compensate for the temperature dependency of the pH measurement the temperature of the medium can be measured and automatically compensated Figure 6 3 Temperature dependency of the slope 04 2013
30. uirements CAUTION e Never touch or scratch the membrane glass of the sensor e Store the sensor in its original packaging in a dry dust free location Keep it away from dirt If necessary Clean it as described on page 21 Figure 3 1 Unpacking the sensor ge Unpacking the sensor e Loosen the storage cap which is screwed or and pushed on to the plastic tube e Gently pull the sensor out of the plastic tube e Lay the sensor ona soft mat tissue 3 5 Electrical connection DANGER All work on the electrical connections may only be carried out with the power disconnected DANGER Observe the national regulations for electrical installations WARNING Observe without fail the local occupational health and safety regulations Any work done on the electrical components of the measuring device may only be carried out by properly trained specialists INFORMATION Look at the device nameplate to ensure that the device is delivered according to your order m gt gt e 12 www krohne com 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en SMARTSENS PH 8150 INSTALLATION 3 9 1 Connecting the cable to the sensor CAUTION A N Moisture inside the sensor connector must be avoided Moisture may cause a shortcut and deliver erratic readings f moisture has entered the connector dry it with air e g hair blower Figure 3 2 Connecting the cable to the sensor ge Connecting the cable to the sensor e En
31. upported In the burst mode a slave device transfers cyclic pre defined response telegrams to geta higher rate of data transfer INFORMATION For detailed information about the electrical connection of the sensor for HART refer to Connecting with junction box SJB 200 Won page 14 There are two ways of using the HART communication e as Point to Point connection and e as Multidrop connection with 2 wire connection 30 www krohne com 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en DESCRIPTION OF HART INTERFACE 7 3 1 Point to Point connection analogue digital mode Point to Point connection between the sensor and the HART Master The current output of the device Is passive Figure 7 1 Point to point connection Primary master with e g PACTware FDT DTM SMARTBRIDGE HART signal SD 200 W R or SMARTMAC 200 W optional Sensor Secondary Master with HART DD Power supply for devices slaves with passive current output Load gt 250 Q Ohm OBO GOGO 80 04 2013 4002543601 MA SMARTSENS PH 8150 R01 en www krohne com 31 DESCRIPTION OF HART INTERFACE 7 4 Inputs outputs and HART dynamic variables and device variables HART dynamic variable Code device variable code Device variables The HART dynamic variable PV is always connected to the HART current output which is assigned to the pH value
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