YSI IQ SensorNet NitraLyt Nitrate Sensor User Manual
Contents
1. ammumum I a xylem brand Operating manual NitraLyt9P us 700 IQ IQ SENSOR NET Modular sensor for nitrate ba76004e01 01 2012 2 5 700 IQ Note li For the most recent version of the manual please visit www ysi com Contact YSI 1725 Brannum Lane Yellow Springs OH 45387 USA Tel 41 937 767 7241 800 765 4974 Email environmental ysi com Internet www ysi com Copyright 2012 Xylem Inc ba76004e01 01 2012 NitraLyt9P vs 700 IQ Contents NitraLyt9P us 700 IQ Contents OvervieW am Rr Tere rr xr 1 1 1 1 How to use this component operating manual 1 1 1 2 Structure of the nitrate sensor NitraLyt8 s 700 IQ 1 2 1 3 Recommended fields of application 1 4 Safety instructions 2 1 2 1 2 2 2 2 General safety instructions 2 2 Commissioning 3 1 3 1 Scopes of delivery 3 1 3 2 IQ SENSOR NET system requirements 3 2 3 3 Notes on the handling of the electrodes 3 3 3 3 1 Reference electrode 3 3 3 3 2 Measurement electrodes and compensation electrodes 3 4 3 4 Preparing the sensor for measurement 3 5 3 4 1 Equipping the sensor with electrodes 3 5 3 4 2 Mounting2. 0 5 450 0 mg l 5 4500 mg l With AutoRange the instrument automatically switches to the suitable measuring range Measuring range e 2000 2000 mV Fixed range Measuring mode mV Chloride compens automatic manual automatic 1 1000 mg l with a chloride electrode mounted When a chloride electrode is mounted the chloride compensation takes places automatically only The value of the chloride concentration measured at the time the setting table was opened is displayed in the next line manual without any chloride electrode mounted After determining the chloride content of the test solution enter the determined chloride content manually in the next line TThe measured value is accordingly corrected by the entered chloride content Note Detailed information on the subject of chloride compensation is given in the YSIYSI primer ION SELECTIVE MEASUREMENT IN ONLINE ANALYSIS Calib history Cl only with Chloride compens automatic Do not download Transmit to log book Send to log book generates a log book message with the calibration history of the chloride electrode When opening the setting table again the setting is reset to Do not download ba76004e01 01 2012 NitraLyt9P vs 700 IQ Commissioning Menu item Selection values Explanations IQ LabLink not active not used Temperature mode e Unit of the measured temperature value e T Celsius Fahr
3. 01 2012 Matrix adjustment check and calibration 2 5 700 IQ 76004 01 01 2012 NitraLyt9P vs 700 IQ Measuring Interfering ions 5 Measuring 5 1 Measuring operation Note the data given in section 9 2 APPLICATION CONDITIONS especially the minimum immersion depth of the sensor gt 50 mm with mounted protective hood Note To keep the sensor clean we recommend to use the CH cleaning head see chapter 7 REPLACEMENT PARTS AND ACCESSORIES 5 2 Factors affecting the measured value Caution Greases oils certain tensides and similar substances can shorten the operational lifetime of the electrodes Therefore they should not be present in the test sample Nitrate measurement with the 1 5 700 IQ can be influenced by the presence of chloride ions Note The effects of influencing variables on measurement and compensating actions are described in detail in the YSI primer ION SELECTIVE MEASUREMENT IN ONLINE ANALYSIS ba76004e01 01 2012 Measuring NitraLyt P us 700 IQ 76004 01 01 2012 NitraLyt9P vs 700 IQ Maintenance and electrode exchange Maintenance condition VARION Epack Maintenance and calibration case VARION Case 6 Maintenance and electrode exchange 6 1 General maintenance notes Warning Contact with the sample can be dangerous for the user Depending on the type of sample suitable protective measures must
4. Caution Make sure to use the correct solution for the watering cap VARiONS ES 1 standard solution If you use the watering solution of the reference electrode instead the function of the electrode can be seriously damaged ba76004e01 01 2012 NitraLyt9P vs 700 IQ Commissioning 3 4 Preparing the sensor for measurement 3 4 4 Equipping the sensor with electrodes Caution The sensor can be damaged by dirt and moisture Before mounting the electrodes make sure the area behind the sealing ring of the electrodes and the receptacle are dry and clean The NitraLyt9P us 700 IQ may only be submersed when the electrodes or original blind plugs are mounted Note More detailed information on the electrode equipment for the various gt operating modes is given in the table on page 1 3 Compensation electrode or blind plug Measurement 8 electrode PA Reference S electrode Mark for reference electrode Special socket wrench Fig 3 3 Equipping the sensor with electrodes All receptacles are closed with blind plugs in the delivery condition Screw the electrodes into the receptacles instead of the blind plugs When doing so observe the following points The receptacle for the reference electrode is marked by a recess It extends into the inside of the sensor clearly deeper than the other two receptacles see Fig 3 3 76004 01 01 2012 3 5 Commissioning NitraLyt9P vs 700 IQ CH clean
5. Maintenance and electrode exchange Cleaning the sensor i 6 2 Exterior cleaning Note To keep the electrodes clean we recommend to use the CH cleaning head see chapter 7 REPLACEMENT PARTS AND ACCESSORIES With normal operation e g municipal wastewater we strongly recommend to clean the outside of the sensor and calibrate when it is strongly contaminated after visual check if erroneous measured values are suspected each time before removing or exchanging an electrode Caution Do not use any detergents for cleaning Detergent residues can seriously affect the function of the electrodes Note We recommend to clean the sensor shaft and electrodes while the sensor is still connected to the sensor connection cable Otherwise moisture and or dirt can get into the plug connection where it can cause contact problems If you would like to disconnect the sensor from the sensor connection cable please note the following points Before disconnecting the sensor from the SACIQ sensor connection cable remove any larger pieces of contamination from the sensor particularly in the area of the plug connection brush it off in a bucket of tap water wash it off with a hose or wipe it off with a cloth Unscrew the sensor from the SACIQ sensor connection cable Always place a protective cap on the plug head of the sensor and on the SACIQ sensor connection cable so that no moisture or dirt can get into the
6. i NitraLyt P us 700 IQ 11 2 Status info The status info is a piece of coded information about the current state of a sensor Each sensor sends this status info to the controller The status info of sensors consists of 32 bits each of which can have the value 0 or 1 01234567 8 9 101112131415 10000000 00000000 general 00000000 00000000 internal 16 17 18 19 20 21 2223 2425 26 27 28 29 30 31 The bits 0 15 are reserved for general information The bits 16 21 are reserved for internal service information You obtain the status info viaa manual query in the menu Einstellungen Settings Service List of all components see system operating manual via an automated query ofasuperordinate process control e g when connected to the Profibus ofthe IQ Data Server see operating manual of the IQ SENSOR NET software pack Note The evaluation of the status info e g in the case of an automated query has to be made individually for each bit Status info Status bit Explanation Bit 0 Component hardware defective Bit 1 31 76004 01 01 2012 11 3 Indexes NitraLyt 4s 700 IQ 11 4 76004 01 01 2012 a xylem brand 1725 Brannum Lane Yellow Springs Ohio 45387 USA 1 937 767 7241 800 765 4974 US FAX 937 767 1058 Email environmental ysi com Internet www ysi com
7. Support directly at 800 897 4151 When returning a product for service include the Product Return form with cleaning certification The form must be completely filled out for an YSI Service Center to accept the instrument for service The Product Return form may be downloaded at www ysi com and clicking on the Support tab 76004 01 01 2012 10 1 Contact Information 2 5 700 IQ 10 2 ba76004e01 01 2012 NitraLyt9P vs 700 IQ Indexes Message code EA1396 EA2523 EA3523 EAN396 EC7523 11 Indexes 11 1 Explanation of the messages This chapter contains a list of all the message codes and related message texts that can occur in the log book of the IQ SENSOR NET system for the NitraLyt9 s 700 IQ sensor Note Information on the contents and structure of the log book and the structure of the message code is given in the LOG Book chapter of the IQ SENSOR NET system operating manual Note The last three digits of the message code identify the source of the message 523 NitraLyt 700 IQ armature component class ADA adapters e 396 NitraLyt nitrate sensor 11 1 1 Error messages Message text Meas range exceeded or undercut Check process Select other meas range Sensor temperature too high Check process and application Sensor temperature too low Check process and application Chloride measurement range exceeded or undercut Check
8. The slopes are marked by a star because they were not changed by the matrix adjustment or reset to the default condition with the electrode zeroing DV Drift voltage mV 0 is displayed after an electrode zeroing Ref1 Reference concentration mg l Ref2 This column is of no importance for the matrix adjustment CI Measured or entered chloride concentration mg l Procedure 1 2 matrix adjustment T Temperature C Evaluation of the matrix adjustment Matrix adjustment successful The sensor measures with the new adjustment data Matrix adjustment unsuccessful Invalid adjustment data was discarded Measurement is continued with the last valid values Note The history of matrix adjustments of the chloride electrode is not output with the calibration history of the sensor NitraLyt If necessary you can create a log book message with the calibration history by means of the menu item Calib history Cl in the setting table How to do this is described on page 3 10 The log book message is given in the log book message code 1 5396 ba76004e01 01 2012 NitraLyt9P vs 700 IQ Matrix adjustment check and calibration 4 2 4 Program extension The simple matrix adjustment as described in the sections 4 2 2 to 4 2 3 will in most cases lead to precise measurement results In some cases special effects in the matrix can cause the real characteristic curve of the ISE measurement to deviate very much from th
9. be taken protective clothing protective goggles etc We recommend to switch on the maintenance condition each time the sensor is taken out of the measuring position This avoids unwanted reactions of linked outputs More information on the maintenance condition is given in the relevant IQ SENSOR NET system operating manual The VARION Epack set with usual replacement parts is available for maintenance see chapter 7 REPLACEMENT PARTS AND ACCESSORIES For adjustment calibration and maintenance activities on site the VARION Case is available The convenient case provides room for all required accessories details see next page 76004 01 01 2012 Maintenance and electrode exchange NitraLyt lus 700 IQ NitraLyt 700 10 SON 2 Fig 6 1 Sample equipment of the VARION Case calibration and maintenance case Blind plug Special socket wrench Polishing strip Replacement electrodes with watering caps eo mm Compartments for various accessories wiping cloths sample bottles personal protective equipment etc Recess for sensor Replacement reference electrode with storing aids 6 7 Storing solution for reference electrode 8 9 Calibration standards 10 Operating manual 11 Protective hood ba76004e01 01 2012 NitraLyt9P vs 700 IQ
10. before carrying out any work using this sensor In addition to this manual the SAFETY chapter of the IQ SENSOR NET system operating manual must be followed Always keep this component operating manual together with the system operating manual and any other component operating manuals in the vicinity of the IQ SENSOR NET system The NitraLyt 5 700 IQ nitrate sensor was developed for applications in online measurement essentially in the field of wastewater treatment Thus we assume that the operators are familiar with the necessary precautions to take when dealing with chemicals as a result of their professional training and experience Safety instructions in this operating manual are identified by the warning symbol triangle in the left column The signal word e g Caution indicates the level of danger Warning indicates instructions that must be followed precisely in order to prevent serious dangers to persons Caution indicates instructions that must be followed precisely in order to avoid slight injuries or damage to the instrument or the environment Note indicates notes that draw your attention to special features Note indicates cross references to other documents e g operating manuals 76004 01 01 2012 Safety instructions NitraLyt P us 700 IQ Function and operational safety 2 1 Authorized use The authorized use of the NitraLyt P lus 700 IQ with the electrodes built in consists o
11. head connector 1 clicks into one of the two holes in the socket 3 Then screw the coupling ring 2 of the sensor connection cable onto the sensor up to the stop ba76004e01 01 2012 NitraLyt9P vs 700 IQ Commissioning Automatic electrode recognition Carrying out settings 3 5 Settings 3 51 General information The NitraLyt lus 700 IQ software automatically recognizes the built in electrodes and checks the equipment for validity If the sensor is correctly equipped it is displayed in the list of sensors with the designation NitraLyt Switch to the main settings menu from the measured value display with lt S gt Then navigate to the setting menu setting table of the sensor The exact procedure is described in the relevant IQ SENSOR NET system operating manual The setting tables for the NitraLyt are described in the following chapter 76004 01 01 2012 Commissioning NitraLyt P us 700 IQ 3 5 2 NitraLyt setting table Menu item Selection values Explanations Measuring mode NO3 N Citation form of the mass concentration or e NO3 voltage of the electrode e mv Measuring range e AutoRange 2 measuring ranges can be selected Measuring mode NO3 N 01 100 0 mg l With AutoRange the instrument bo automatically switches to the suitable 7 1000 mg l measuring range Measuring range AutoRange 2 measuring ranges can be selected Measuring mode NO3
12. maintenance condition off and thus releasing the linked outputs The sensor continues to use the data of the previous matrix adjustment or calibration The reference voltages determined in step 1 will not be lost They remain stored until step 3 of the matrix adjustment is completed They do not have to be noted and entered again Use the Online help if you are unsure of anything during the matrix adjustment 76004 01 01 2012 NitraLyt P us 700 IQ Matrix adjustment check and calibration 4 2 3 Result of the matrix adjustment Evaluation After the matrix adjustment the system automatically evaluates the current condition of the electrode s based on the drift voltage For a successful matrix adjustment the drift voltage must be within the range 45 mV to 45 mV The drift voltage is set to 0 mV if you have selected to zero the electrode At the end of the matrix adjustment procedure the drift voltage of all selected electrodes is shown on the display The evaluation is displayed with successful or unsuccessful Additionally the slopes are displayed that are used for the current measured value calculation The slopes are marked by a star as they were not changed by the matrix adjustment Taking over the For each successfully adjusted electrode you can individually decide determined values whether the values should be stored for measurement Note il If the matrix adjustment was erroneous due to an incorrect
13. parts and accessories 7 1 Zl Electrodes eee sae 7 1 7 2 General accessories 7 1 8 1 8 1 8 1 Interpretation of the drift voltage 8 1 8 2 Error causes remedies 8 2 9 Technical dala 9 1 9 1 Measuring characteristics 9 1 9 2 Application conditions 9 2 9 9 9 2 9 4 1 9 3 9 5 Data of the 5 electrodes 9 4 9 5 1 lt 9 4 9 5 2 Materials eve ra USER RES vase 9 4 9 53 MOTOS eta Pest orga aut hie rv pretia e bes ges 9 4 10 Contact Information 10 1 10 1 Ordering amp Technical Support 10 1 10 2 Service Information 10 1 11 Indexes 11 1 11 1 Explanation of the messages 11 1 11 1 1 Error messages 11 1 11 1 2 Info messages 11 2 20 22 ade ae QI REM Sede eae ees 11 3 0 2 ba76004e01 01 2012 NitraLyt9P vs 700 IQ Overview Overview How to use this component operating manual 1 1 1 Struc
14. the protective hood 3 6 3 4 8 Connecting the sensor to the IQ SENSOR NET 3 7 8 5 5525 ive ne V PIER var gig Om me 3 9 3 5 1 3 9 3 5 2 NitraLyt setting table 3 10 Matrix adjustment check and calibration 4 1 4 1 General information 4 1 4 2 5 4 3 4 2 4 General information on matrix adjustment 4 3 4 2 2 Carrying out the matrix adjustment 4 3 4 2 3 Result of the matrix adjustment 4 5 4 24 Program extension 4 7 4 3 Check and calibration in standard solutions 4 8 4 3 1 General information on checking and calibrating xen wees dade ows 4 8 4 3 2 Result of the check 4 10 4 3 8 Result of the calibration 4 11 Measuring 5 1 76004 01 01 2012 Contents NitraLyt9P vs 700 IQ 5 1 Measuring operation 5 1 5 2 Factors affecting the measured value 5 1 6 Maintenance and electrode exchange 6 1 6 1 General maintenance notes 6 1 6 2 Exterior cleaning 6 3 6 3 Exchanging the electrodes 6 5 6 4 Polishing the chloride electrode 6 6 Replacement
15. 004e01 01 2012 NitraLyt9P vs 700 IQ Matrix adjustment check and calibration i Main steps Online help Matrix adjustment with electrode zeroing 4 2 Matrix adjustment 4 2 1 General information on matrix adjustment This procedure adjusts the value measured directly in the test sample to an independently determined reference value lab value To determine the reference values a sample is taken from the measuring solution and the relevant concentrations are measured e g photometrically First select for which of the installed combination electrodes the matrix adjustment should be carried out Based on this selection and the electrode equipment the sensor software determines the ion types for which a reference measurement must be carried out The menu guided routine adapts itself correspondingly and informs you of all necessary actions 4 2 2 Carrying out the matrix adjustment Note A chloride electrode should be checked for coatings and polished off as necessary before the matrix adjustment is carried out see section 6 4 Step 1 Determination of all combination electrode voltages reference voltages The sensor is in the sample The procedure is started from the measured value display with C After completion the system returns to the measured value display Step 2 Sampling at the same place and time if possible and determination of all relevant reference values Step 3 Entry of the measured reference
16. 056Y Replacement parts set comprising 1 blind plug for receptacle 1 special socket wrench replacement sealing rings for electrodes blind plugs Storing equipment for electrodes 1 nut transparent 1 watering cap with sponge 1 nut black 1 watering cap without sponge for reference electrode Description VARION Epack Model 107057Y Order no Empty case for the storage of calibration and maintenance equipment for the 225 700 IQ Description VARiON Case Model 107058Y Order no Cleaning head CH 900107Y Passive valve module DIQ CHV 472007Y Active valve module does not require a free relay output in the IQ SENSOR NET system MIQ CHV PLUS 480018Y Air compressor for supply of the sensor cleaning system with compressed air Note Cleaning Air Box 115 VAC 230 VAC 480017Y 480019Y Information on other IQ SENSOR NET accessories is given in the YSI catalog and on the Internet ba76004e01 01 2012 NitraLyt9P vs 700 IQ What to do if 8 What to do if 8 1 Interpretation of the drift voltage The drift voltage is influenced by the potential levels of the measurement electrode and reference electrode If the potential levels shift e g caused by aging both parts can move into the same direction or into opposite directions The comparison of the drift voltages of two or three combination electr
17. S Note Information on the available sets is given in the YSI catalog and on the Internet 76004 01 01 2012 Commissioning 2 5 700 IQ Software statuses of the coniroller and terminal components 3 2 IQ SENSOR NET system requirements Operation of the NitraLyt S 700 IQ requires the following software statuses in the IQ SENSOR NET depending on the system DIQ S 182 Software Version 3 21 or higher MIQ MC Controller software Version 2 83 or higher IQ software pack Software version 5 00 or higher 76004 01 01 2012 NitraLyt9P vs 700 IQ Commissioning Notes on storage Commissioning 3 3 Notes on the handling of the electrodes The electrodes of the NitraLyt P lus 700 IQ nitrate sensor were developed for the rough use in waste water treatment plants They are however precision parts that can be damaged by inappropriate use Therefore exactly follow the instructions in the two following chapters 3 3 1 Reference electrode Reference electrode Junction Watering cap d Sealing ring Fig 3 1 Reference electrode with storing aids In the delivery condition the electrode is equipped with a watering cap and a nut that protects the screw in thread The watering cap contains mol l potassium chloride solution Before mounting unscrew the watering cap Then using the special hexagon key unscrew the electrode from the nut Keep both storin
18. SACIQ sensor connection cable connected IP 68 0 2 bar 2 x 10 Pa min 50 mm max 2 m depth Electrode support pointing downward maximum angle to the plumb line 60 Control monitoring in the aeration tank of a waste water treatment plant Water and waste water monitoring 93 General data Minimum immersion depth 50 mm Socket SACIQ ba76004e01 01 2012 NitraLyt9P vs 700 IQ Technical data Weight without sensor connection cable Connection technique Instrument safety Material Shaft approx 670 g with protective hood Connection via SACIQ sensor connection cable stainless steel 1 4571 Protective hood POM Electrode support POM Temperature probe stainless steel 1 4571 Plug head connector housing POM Plug 3 pole ETFE blue Tefzel Electrodes Applicable norms 9 4 Electrical data Nominal voltage see section 9 5 EN 610104 UL 3111 1 CAN CSA 22 2 No 1010 1 max 24 VDC via the IQ SENSOR NET details see chapter TECHNICAL DATA of the IQ SENSOR NET system operating manual Power consumption 0 2W Protective class 76004 01 01 2012 Technical data 2 6 700 IQ 9 5 Data of the VARION 4s electrodes 9 5 1 Response times 2 5 VARION P us Response time to
19. To polish the electrode use the SF 300 polishing strip provided with the electrode Moisten the rough side of the polishing strip with water and polish off any coatings under slight pressure Fig 6 3 Polishing the chloride electrode ba76004e01 01 2012 NitraLyt 4s 700 IQ Replacement parts and accessories 7 Replacement parts and accessories 7 1 Electrodes Exchange electrodes Description Model Order no Reference electrode VARiON Ref 107042Y Nitrate electrode NO3 107045Y Chloride electrode VARION P Us c 107047Y Storing equipment Description Model Order no 250 ml potassium chloride KCI 250 109705Y solution for the storage of the electrode 7 2 General accessories Standard solutions Description Model Order no for calibration 1 liter combination standard 1 VARIONS ES 1 107050Y low concentration 1 liter combination standard 2 VARIONS ES 2 107052Y high concentration Maintenance equipment Description Model Order no Polishing strip SF 300 203680Y Protective plugs Description Model Order no Screwable plug for sensor SACIQ Plug 480065Y connection cable 76004 01 01 2012 7 1 Replacement parts and accessories 2 6 700 IQ General replacement parts Calibration and maintenance case Components for cleaning system Description Model Order no Protective hood 9 700 IQ SK 107
20. ck the installation and contacts of the electrode gap free mounting Check electrode receptacle for moisture If necessary unscrew the electrode blind plug and thoroughly dry the electrode blind plug and receptacle Unknown Look for error messages in the log book Liquid in the sensor shaft Cause Sensor defective send it back Remedy No matrix adjustment or calibration carried out Adjust or calibrate the electrode Adjustment or calibration error e g incorrect lab values contaminated standard solutions Check the adjustment or calibration conditions Readjust or recalibrate the electrode Manual chloride compensation works with an unsuitable value Determine and enter the chloride concentration once again then recalibrate Electrode s not at all or incorrectly recognized by the system Check the installation and contacts of the electrode gap free mounting Check electrode receptacle for moisture If necessary unscrew the electrode blind plug and thoroughly dry the electrode blind plug and receptacle ba76004e01 01 2012 NitraLyt9P vs 700 IQ What to do if Measurement provides jumping unstable or drifting values Cause Remedy Electrode contaminated Clean the electrode see section 6 2 Liquid in the sensor shaft Cause Sensor defective send it back Remedy Measurement compensation electr
21. contacting surfaces n corrosive environments close the socket of the sensor connection cable with the screwable SACIQ Plug when it is dry in order to protect the electrical contacts from corrosion The protective plug is available as an accessory see section 7 2 GENERAL ACCESSORIES Clean the sensor shaft with tap water and a soft sponge or brush Remove the protective hood The electrodes are best cleaned under running tap water using a soft toothbrush or brush 76004 01 01 2012 Maintenance and electrode exchange NitraLyt lus 700 IQ Cleaning the coupling ring of the protective hood The coupling ring can be unscrewed and dismantled for cleaning as follows Ti O eO 1 Fig 6 2 Dismantling the coupling ring 1 Remove the retaining ring pos 1 in Fig 6 2 2 Remove the intermediate ring pos 2 and sealing ring pos 3 After the parts have been cleaned reassemble the coupling ring in reverse order When doing so make sure that the tapered side of the intermediate ring pos 2 points towards the sealing ring pos 3 ba76004e01 01 2012 NitraLyt9P vs 700 IQ Maintenance and electrode exchange Recognizing the electrode type from outside 6 3 Exchanging the electrodes Caution The sensor can be damaged by dirt and moisture Each time before dismantling an electrode carefully clean the area around the electrodes section 6 2 Before mounting an electrod
22. determination or entry of the reference concentration you can correct the entry if necessary several times If by doing so it is not possible to eliminate the error the complete matrix adjustment has to be repeated or discarded for this electrode If it is discarded measurement is continued with the values of the last valid matrix adjustment or calibration Values of successfully adjusted electrodes that were already stored are retained Note Actions for error elimination are given in the Online help and in chapter 4 8 WHAT TO DO History of matrix The history of matrix adjustments can be viewed in the so called adjustments calibration history available in the IQ SENSOR NET system 18 2020 05 Dec 2006112 28 8110 2020 Calibration history af selected sensor 330 501 NitraLyt 04460001 Last electrode Date 5 OU Ref Ref2 1 TR zeroing via 240708 58826 23 16112394 matrix adjustment 05 12 06 59 28 3 26 111 8 4 Chronologicallist of 27 10 05 59 2 5 9 8 221 8 E the last matrix 15 08 06 59 2 2 4 7 151 7 adjustments 02 08 06 58 2 4 4 0 18 1 10 Return EXC Fig 4 2 Calibration history of NitraLyt with matrix adjustments 76004 01 01 2012 4 5 Matrix adjustment check and calibration NitraLyt9P vs 700 IQ The history of matrix adjustments contains the following information Date Date of the matrix adjustment 5 Slope mV of the electrode
23. e coupling ring of the protective hood can be taken apart for cleaning hood purposes see section 6 2 EXTERIOR CLEANING 3 4 8 Connecting the sensor to the IQ SENSOR NET Connection cable The SACIQ sensor connection cable is required to connect the sensor Information on this and other IQ SENSOR NET accessories is given in the YSI catalog and on the Internet Note il Do not suspend the sensor on the sensor connection cable Use an armature or electrode holder Information on this and other IQ SENSOR NET accessories is given in the YSI catalog and on the Internet IQ SENSOR NET is described in chapter 3 INSTALLATION of the Note How to connect the SACIQ sensor connection cable to the IQ SENSOR NET system operating manual 76004 01 01 2012 3 7 Commissioning NitraLyt9P vs 700 IQ Are the plug connections dry Connecting the sensor to the sensor connection cable Before connecting the sensor and sensor connection cable make sure that the plug connections are dry If moisture gets into the plug connections first dry the plug connections dab them dry or blow them dry using compressed air Fig 3 5 Connect the sensor 1 Take the protective caps off the plug connections of the sensor and the SACIQ sensor connection cable and keep them safe 2 Plug the socket of the SACIQ sensor connection cable onto the plug head connector of the sensor At the same time rotate the socket so that the pin in the plug
24. e factory characteristic curve This can lead to measured values that are not precise enough From sensor software version 3 20 the setting table provides the Program Level setting which can be used to enhance the functionality of the matrix adjustment Program Level 0 is the simple matrix adjustment as described in the sections 4 2 2 to 4 2 3 The program levels 1 and 2 provide tools with which the real characteristic curve of the ISE measurement can be better approximated For more detailed information please address your YSI contact person Note To restore the factory characteristic curve select Program Level 0 in the setting table and then quit the menu with Save and quit 76004 01 01 2012 Matrix adjustment check and calibration 2 5 700 IQ When does a check calibration make sense 4 3 Check and calibration in standard solutions 4 31 General information on checking and calibrating In addition to the comparison measurement or matrix adjustment under real measurement conditions it is possible to check the function of the entire sensor in standard solutions If necessary you can also take over in the sensor the slope and potential level of the individual combination electrodes via an exact calibration in standard solutions The slope will be retained with a future matrix adjustment if it is carried out without zeroing the electrode Caution The long term stable VARION P S electrodes are ca
25. e if the sensor has been damaged in transport has been stored under adverse conditions for a lengthy period of time is visibly damaged no longer operates as described in this manual If you are in any doubt contact the supplier of your sensor The operator of the sensor must ensure that the following rules and operator regulations are followed when dealing with hazardous substances EEC directives for protective labor legislation National protective labor legislation Safety regulations Safety data sheets of the chemical manufacturer ba76004e01 01 2012 2 3 Safety instructions NitraLyt P us 700 IQ 2 4 76004 01 01 2012 NitraLyt9P vs 700 IQ Commissioning 3 Commissioning 3 4 Scopes of delivery YSI supplies the NitraL yt8Plus 700 IQ in sets for different measuring requirements Each set contains the following components Unequipped sensor NitraLyr9 lus 700 IQ The electrode receptacles are closed with blind plugs Reference electrode 9 Ref Depending on the set the suitable selection from the following measurement and compensation electrodes VARION 4s nitrate electrode VARION 4s chloride electrode for compensation Special socket wrench e VARION 700 IQ SK protective hood Potassium chloride solution for storing the reference electrode Operating manual YSI primer ION SELECTIVE MEASUREMENT IN ONLINE ANALYSI
26. e make sure the area behind the sealing ring of the electrode and the receptacle are dry and clean The NitraLyt lus 700 IQ may only be submersed when the electrodes or original blind plugs are mounted Use the special socket wrench provided to dismantle an electrode Electrodes are installed as described in section 3 4 1 EQUIPPING THE SENSOR WITH ELECTRODES When mounted the electrodes can be recognized by the following features Electrode Hexagon Front Other features surface VARiON Ref black black Thread at the hexagon VARION 4s NO3 white white Labelling with electrode type VARION S black black Larger membrane Membrane flush with the front surface Note For the correct storage of the electrodes please follow the instructions in section 3 3 NOTES ON THE HANDLING OF THE ELECTRODES 76004 01 01 2012 Maintenance and electrode exchange NitraLyt lus 70010 6 4 Polishing the chloride electrode Caused by the test medium a coating can develop on the surface of the chloride electrode which reduces the electrode slope To maintain a proper chloride compensation the surface must be renewed by polishing at regular intervals Caution Danger of damaging the electrode Exclusively use the SF 300 polishing strip Never use commercial sandpaper or similar The polishing can be done while the electrode is mounted remove the protective hood as necessary
27. e not sufficiently Switch to mV mode and adapted conditioned to test observe measured value sample When measured value stable repeat matrix adjustment Reference electrode or Replace defective electrode measurement electrode defective due to aging see section 8 1 Faulty result of Cause Remedy calibration m Error during procedure e g Check the basic conditions contaminated standard Follow the practical notes on solutions page 4 10 or in the online help Recalibrate the electrode Reference electrode or measurement electrode defective due to aging see section 8 1 Replace defective electrode 8 4 ba76004e01 01 2012 NitraLyt9P vs 700 IQ Technical data 9 Technical data Measuring principle Measured parameters Measuring ranges and resolution Nitrate measurement Measuring ranges and resolution Chloride measurement Selectable procedures for interfering ions compensation 9 1 Measuring characteristics Potentiometric measurement by means of ion sensitive electrodes Modular structure with jointly used reference electrode and ion sensitive electrodes Integrated microprocessor electronics screened 2 wire connection for power and data transmission Main measured parameter Nitrat Secondary measured parameter Temperature Compensation parameter Chloride depending on the electrode equipment Measuring mode Measu
28. enheit Temp adjustment 1 5 41 5 The temperature compensation function enables the temperature sensor to be balanced against a reference temperature measurement displacement of the zero point by 1 5 C Notes Due to the thermal capacity of the sensor it is necessary to place it in a container with at least 2 liters of water Leave the sensor in this container for at least 15 minutes while stirring occasionally then carry out the adjustment If the temperature difference of the water and sensor is gt 10 C leave the sensor in the container for at least one hour while stirring occasionally Conc offset 1 0 mg l 41 0 mg l Constant value which is added to the measuered value Program level 0 2 Program extension 0 Off standard set ting Refer to section 4 2 4 for details about the program extension Save and quit The system confirms the saving of the settings and the display switches to the next higher level Quit The display switches to the next higher level without saving the new settings 76004 01 01 2012 Commissioning NitraLyt P us 700 IQ 3 12 ba76004e01 01 2012 NitraLyt9P vs 700 IQ Matrix adjustment check and calibration Calibration free Operation Steps 4 Matrix adjustment check and calibration 4 1 General information The NitraLyt P lus 700 IQ nitrate sensor is immediately ready to measure aft
29. ent Slope mV of the electrode Note After a matrix adjustment the values for the slope are marked by a star because they were not changed by this procedure DV Drift voltage mV After an electrode zeroing and subsequent calibration or matrix adjustment 0 is displayed Ref1 Ref2 Depending on the procedure Matrix adjustment Reference concentration mg l Calibration Used standard solution CI Depending on the procedure Matrix adjustment Chloride concentration mg l Calibration Standard solution VARION ES 2 Procedure 7 matrix adjustment 3 calibration Temperature C Evaluation of the calibration or matrix adjustment Calibration or matrix adjustment The sensor measures with the new calibration or adjustment data Calibration or matrix adjustment unsuccessful Invalid calibration or adjustment data were discarded Measurement is continued with the last valid values 76004 01 01 2012 NitraLyt9P vs 700 IQ Matrix adjustment check and calibration i Note The calibration history of the chloride electrode is not output with the calibration history of the sensor NitraLyt If necessary you can generate a log book message with the calibration history via the menu item Calib history Cl in the setting table How to do this is described on page 3 10 The log book message is given in the log book message code 1 5396 76004 01
30. ential and slope are evaluated separately For a calibration procedure to be valid the potential level slope and drift voltage must be within certain ranges Valid ranges for slope and drift potential Value of the slope 50 70 mV Drift voltage 45 45 mV The valid potential levels MIN MAX can be taken from the online help For each successfully calibrated electrode you can individually decide whether the values should be stored for measurement Note Actions for error elimination are given in chapter 8 WHAT TO DO IF 76004 01 01 2012 Matrix adjustment check and calibration 2 6 700 IQ Calibration history available in the IQ SENSOR NET systems 2020 XT and 2020 XT USB only Date In the calibration history a calibration has the entries ES1 and ES2 the Ref and Ref2 columns which the matrix adjustment has not Hld T2020 05 2006 12 78 g A Calibration history of selected sensor 330 501 Witralyt O4460001 Last electrode calibration 24 07 06 38 7 2 E51 ES2 3 21 05 12 06 58 4 13 2 6 4415 Chronological list 27 10 06 58 4 1 ES ES 3 22 EE with the last matrix 16 09 06 58 7 16 4 7 11 74 adjustments and x 02 08 06 58 7 14 4 0 18 1 10 calibraBons Return ESC Fig 4 3 Calibration history of NitraLyt The calibration history contains the following information Date of the calibration or matrix adjustm
31. er being equipped with electrodes For precise measurements it is only necessary to adjust the electrodes to the sample matrix matrix adjustment In the recommended application see section 1 3 RECOMMENDED FIELDS OF APPLICATION the measuring characteristics of the electrodes remain stable for their entire service life Thus calibration is no longer required Possible changes of the sample matrix can be determined by occasional comparison measurements e g photometer and compensated for by a new matrix adjustment The sensor does not have to be taken out of the sample for this At the same time a matrix adjustment provides information on the state of the electrodes Start press lt C gt Electrode zeroing Yes if a new or different electrode is Yes No commissioned Check Calibration Procedures for special cases see section 4 3 Fig 4 1 Schematic diagram ba76004e01 01 2012 Matrix adjustment check and calibration NitraLyt9P vs 700 IQ Drift potential Electrode zeroing Resetting the slope by electrode zeroing Maintenance and calibration case VARION 9 Case Simultaneously with the matrix adjustment or calibration the drift voltage DV mV of the combination electrode is determined It serves to evaluate the long term behavior of the combination electrode The drift voltage changes due to the following factors Influences due to the sample composition matrix Change of the c
32. ess strict It is suitable as a quick method to check whether the slope and potential level of the combination electrodes are within the allowed limits The results are just for information No characteristics or sensor settings are changed For calibration the basic conditions must comply with very high requirements longer conditioning times discarding of the conditioning solution temperature adjustment etc Correspondingly it requires more time During calibration the slope and drift voltage are exactly determined and evaluated If the calibration was successful the determined values can be taken over for measurement The procedure can however be used as a mere check method Calibration is documented in the calibration history and in the log book For the check or calibration the following two YSI standard solutions are required in this order e VARION ES 2 high concentration e VARION ES 1 low concentration These standard solutions contain all ion types that come into question nitrate and chloride and are especially adapted to the NitraLyt8Plus 700 IQ Acomfortable menu guided routine guides you through the procedure All steps are easily and understandably explained on the display In addition you can call up an Online help for each step To do so use the arrow keys A V 4 gt or toggle switch to move the highlighting to the Online help menu and press A help text with detailed informatio
33. f its use as a sensor within the IQ SENSOR NET Please observe the technical specifications according to chapter 9 TECHNICAL DATA Only operation according to the instructions given in this operating manual is considered to be authorized Any other use is considered to be unauthorized Unauthorized use invalidates any claims with regard to the guarantee Caution Only connect and operate the sensor together with IQ SENSOR NET accessories 2 2 General safety instructions The sensor left the factory in a safe and secure technical condition 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 The failure free function and operational safety of the sensor is only guaranteed under the environmental conditions that are specified in chapter 9 TECHNICAL DATA The specified temperature chapter 9 TECHNICAL DATA must be maintained during the operation and transport of the sensor Protect the sensor particularly against frost or overheating Caution The sensor may only be opened by specialists authorized by YSI ba76004e01 01 2012 NitraLyt9P vs 700 IQ Safety instructions Safe operation Obligations of the If safe operation is no longer possible the sensor must be taken out of operation and secured against inadvertent operation Safe operation is no longer possibl
34. g aids in case you want to store the electrode Caution The junction of the reference electrode must not dry up follow notes on storage be damaged be brought into contact with grease If you will not use the electrode for a longer period of time screw the electrode into the nut as far as it will go Fill the watering cap to the brim with 3 mol l potassium chloride solution and tightly screw the watering cap on the electrode by hand 76004 01 01 2012 Commissioning NitraLyt9P vs 700 IQ Commissioning Notes on storage 3 3 2 Measurement electrodes and compensation electrodes Electrode Watering cap Sealing ring Fig 3 2 Measurement electrode or compensation electrode with storing aids In the delivery condition each electrode is equipped with a watering cap and a nut that protects the screw in thread Prior to installation first remove the watering cap and using the special hexagon key unscrew the electrode from the nut Keep both storing aids in case you want to store the electrode Caution The membrane of the electrode must not dry up follow notes on storage be damaged be brought into contact with grease If you will not use the electrode for a longer period of time screw the electrode into the nut as far_as it will go Soak the foam insert in the watering cap with VARION ES 1 standard solution lower concentration and plug the electrode into the watering cap
35. haracteristics of the combination electrode The temporal change of the drift voltage is recorded in the calibration history so that the long term behavior of a combination electrode can be evaluated As a start value the user has to set the drift voltage to zero at the beginning of this evaluation period in order to observe changes in the calibration history The electrode zeroing itself is carried out with the matrix adjustment or calibration procedure for the selected combination electrode s It becomes effective if the procedure was successfully carried out The electrode zeroing can be carried out by the user for each electrode nitrate and chloride combination electrode separately and at any time We recommend however to start the evaluation period with the commissioning of a new or different electrode to be able to see the entire operation period of an electrode in the calibration history It is not possible to zero an electrode with the Check procedure as this procedure stores no data in the sensor Electrode zeroing with the matrix adjustment procedure resets the slope to the default setting or 59 2 mV at the same time Electrode zeroing with the calibration procedure replaces the existing slope with the newly determined value For adjustment calibration and maintenance activities on site the VARION Case is available The convenient case provides room for all required accessories details see section 6 1 ba76
36. ible changes of the sample matrix can be determined by occasional comparison measurements e g photometer and compensated for by a new matrix adjustment The sensor does not have to be taken out of the sample for this The NitraLyt 5 700 IQ nitrate sensor and the corresponding electrodes in conjunction with the IQ Sensor NET system form a measuring system that is protected to a high degree against low and high frequency interference as well as against the indirect effects of lightning strikes 76004 01 01 2012 Overview 2 6 700 IQ 1 3 Recommended fields of application The NitraLyt P4s 700 IQ nitrate sensor is a sensor for the online determination of nitrate ions in water or wastewater applications It supplements D O measurement in the aeration tank of waste water treatment plants and enables an efficient process control of nitrogen removal Note More detailed information on measuring with ion sensitive electrodes is gt given in the YSI primer ION SELECTIVE MEASUREMENT IN ONLINE ANALYSIS 1 4 ba76004e01 01 2012 NitraLyt9P vs 700 IQ Safety instructions Special user qualifications General safety instructions gt gt Other labels 14152 2 Safety instructions This component operating manual contains special instructions that must be followed in the operation of the NitraLyt9 s 700 IQ nitrate sensor Thus it is essential to read this component operating manual
37. ing head option The measurement and compensation electrode can be mounted in the remaining two receptacles in any order During installation make sure the area behind the sealing ring of the electrode and the receptacle are absolutely dry and clean Plug the electrode on the special socket wrench provided and insert the electrode with the special socket wrench Screw until the electrode seats without any gap on the electrode support Thus the tightness and electrical contacting are granted Note When mounted the electrodes can be recognized by the features described in section 6 3 3 4 2 Mounting the protective hood For permanent operation we recommend to use the CH cleaning head for compressed air driven cleaning It is mounted instead of the standard protective hood The compressed air cleaning is started time controlled via the IQ SENSOR NET system Information on the required components is given in the YSI catalog and on the Internet If no CH cleaning head is used the standard protective hood should always be mounted for measuring It protects the electrodes from rough mechanical impact 76004 01 01 2012 NitraLyt9P vs 700 IQ Commissioning Mounting the standard protective hood 1 Loosen the coupling ring 1 of the protective hood 2 Push the protective hood on the sensor as far as it will go 3 Tighten the coupling ring of the protective hood Cleaning the protective Th
38. libration free in the recommended application A check in standard solutions is only of significance if all basic conditions cleanness conditioning etc are strictly kept Calibration can cause major measurement errors if the basic conditions are not sufficiently kept After calibrating a matrix adjustment is normally required additionally always with the recommended application Standard solutions do not correspond to any real test sample A check or calibration can be useful in the following special cases e If the measured values do not appear to be correct even after a careful matrix adjustment and if you suspect the electrode slopes to have changed ifanew application is to be started the sample composition of which considerably deviates from that of the recommended application see section 1 3 RECOMMENDED FIELDS OF APPLICATION Routinely within the framework of the company quality assurance ba76004e01 01 2012 NitraLyt9P vs 700 IQ Matrix adjustment check and calibration Differences between check and calibration Standard solutions Online help Calibration with electrode zeroing i The check and calibration are carried out in two separate routines The schema is the same with both routines Two standard solutions with different concentrations are measured one after the other The differences between the check and calibration are as follows For the check the basic conditions to be kept are l
39. n on the relevant operating step appears on the display It provides for example important instructions on how to keep the correct basic conditions When is pressed once again the display returns to the current operating step After installing a new or different electrode you have to zero the electrode to facilitate a long term evaluation Details on electrode zeroing see section 4 1 Note A chloride electrode should be checked for coatings and polished off as necessary before the check or calibration is carried out see section 6 4 76004 01 01 2012 Matrix adjustment check and calibration NitraLyt9P vs 700 IQ Preparations and Select a place where clean working conditions and a constant instructions on how to sufficiently high temperature are granted a room e g laboratory keep the basic Temperatures under 10 C extend the conditioning time conditions considerably Make sure the temperature of all components sensor standard solutions containers accessories etc is similar and constant We recommend to store the standard solutions in the same place where the check or calibration is carried out Use containers and accessories beaker stirring rod that are absolutely clean and without detergent residues Detergent residues can seriously affect the function of the electrodes Remove the protective hood and clean the sensor thoroughly Before the check rinse the sensor with standard solu
40. o 3 min 3 min Measured at 20 C 68 F and 5 to 50 mg l 10 to 100 mg l a concentration change of NO3 N CI 9 5 2 Materials VARiONSP us VARiONSP Us VARION Ref Electrodes Housing POM PVC PVC Clamping ring POM Membrane soft PVC with ISE element stainless steel solid body protective grating in epoxy Junction gt Porous PVDF Sealing ring FPM Viton FPM Viton FPM Viton Connection gold plated gold plated gold plated contacts Storing equipment Watering cap POM POM POM Nut PMMA PMMA POM 9 5 3 Weights VARiON P us VARIiONSPlus cj VARiON Ref 5g 5g 139 9 4 ba76004e01 01 2012 NitraLyt9P vs 700 IQ Contact Information 10 Contact Information 10 1 Ordering 8 Technical Support Telephone 800 897 4151 937 767 7241 Monday through Friday 8 00 AM to 5 00 PM ET Fax 937 767 1058 Email environmental ysi com Mail YSI Incorporated 1725 Brannum Lane Yellow Springs OH 45387 USA Internet www ysi com When placing an order please have the following information available YSI account number if available Name and Phone Number Model number or brief description Billing and shipping address Quantity Purchase Order or Credit Card 10 2 Service Information YSI has authorized service centers throughout the United States and Internationally For the nearest service center information please visit www ysi com and click Support or contact YSI Technical
41. ode Electrode membrane not moistened by measuring solution e g due to air in front of the membrane Moisten membrane with deionized water using a wash bottle To do so position the opening of the wash bottle on the membrane and splash against the membrane vigorously Measurement compensation electrode Air bubble behind the membrane Hold the electrode in a vertical position with the membrane down and knock it on the side with the special socket wrench Measurement electrode compensation and reference electrode Insufficient electrical contact in the electrode receptacle Check the installation and contacts of the electrode gap free mounting Check electrode receptacle for moisture f necessary unscrew the electrode blind plug and thoroughly dry the electrode blind plug and receptacle Reference electrode dried up Replace reference electrode Measurement compensation electrode or reference electrode leaky or damaged Replace defective electrode Liquid in the sensor shaft Sensor defective send it back 76004 01 01 2012 What to do if NitraLyt 4s 700 IQ Faulty result of the Cause Remedy matrix adjustment m Error during procedure e g Check the basic conditions incorrect lab values Follow the practical notes on page 4 4 or in the online help Recalibrate the electrode Electrod
42. odes enables to draw conclusions concerning the state of individual electrodes if a matrix adjustment or calibration resulted in an invalid or considerably deviating drift voltage Assessment aids View the calibration history of the combination electrodes In the following cases assessment is relatively easy e If the drift voltages of all combination electrodes show the same trend i e the drift voltages have shifted in the same direction positive or negative by approximately the same amount this indicates that the potential level of the reference electrode has shifted The reference electrode is possibly highly contaminated or at the end of its service life e Ifthe drift voltages of all combination electrodes do not show a trend but shift by different amounts into different directions the potential level of the reference electrode has not changed considerably The invalid drift voltage is probably caused by a defective measuring electrode The measuring electrode is possibly highly contaminated or at the end of its service life 76004 01 01 2012 8 1 What to do 2 5 700 IQ No measured value display Measurement provides implausible measured values 8 2 Cause Error causes and remedies Remedy Sensor not connected Connect the sensor Incorrect electrode equipment Correct electrode equipment Electrode s not at all or incorrectly recognized by the system Che
43. process electrode could not be calibrated nitrate measurement blocked nitrate measurement possible with manual Cl compensation and Cl electrode removed Check calib conditions and standard View calibration history Service sensor immediately see operating manual 76004 01 01 2012 11 1 Indexes NitraLyt9P vs 700 IQ Message code EIA523 ES1523 Message code 104523 IC6396 1 7396 96 ICC396 ICD396 ICF396 A523 Message text Incorrect equipment for correct electrode equipment see operating manual Component hardware defective Contact service 11 1 2 Info messages Message text Cl electrode has been successfully calibrated For calibration data see calibration history this message contains calibration data of the chloride electrode Sensor could not be calibrated Measuring with old calibration values Check calibration conditions and calibration standard View calibration history Service sensor immediately see operating manual Electrode check successful electrode check successful Electrode check unsuccessful Please follow online help electrode check unsuccessful Please follow online help This message is generated when the electrode equipment is changed It informs you of the new assignment of the electrode receptacles 11 2 ba76004e01 01 2012 NitraLyt9P vs 700 IQ Indexes Status info general structure
44. rate measurement due to measuring technique is compensated for during measurement To determine the chloride concentration the NitraLyt Pus 700 IQ is equipped with a chloride electrode Note Information on the fundamentals of measuring with ion sensitive electrodes are given in the YSI primer ION SELECTIVE MEASUREMENT IN ONLINE ANALYSIS ba76004e01 01 2012 NitraLyt9P vs 700 IQ Overview Operating modes and electrode equipment Calibration free operation Shielding of the NitraLyt amp P us 700 IQ Due to its modular structure the NitraLyt P lus 700 IQ can be adapted to various requirements see following table Notes The reference electrode has an extra receptacle marked by a recess The ion sensitive electrodes can be mounted in the remaining two receptacles in any order Empty receptacles have to be closed with the VARiON BP blind plug Operating mode Electrode equipment Nitrate measurement 9 5 VARION Ref Ref Blind plug The NitraLyt9P us 700 IQ nitrate sensor is immediately ready to measure after being equipped with electrodes For precise measurements it is only necessary to adjust the electrodes to the sample matrix matrix adjustment In the recommended application see section 1 3 RECOMMENDED FIELDS OF APPLICATION the measuring characteristics of the electrodes remain stable for their entire service life Thus calibration is no longer required Poss
45. ring range Resolution NO3 N 0 1 100 0 mg l 0 1 mg l 1 1000 mg l 1 mg l NO3 0 5 450 0 mg l 0 5 mg l 5 4500 mg l 5 mg l mV 2000 2000 mV 1mV Measuring mode Measuring range Resolution CI 1 1000 mg l 1 mg l mV 2000 2000 mV 1 mV Compensation procedures Description Automatic up to 1000 mg l chloride when equipped with chloride selective compensation electrode Manual without chloride selective compensation electrode by manual entry of the chloride concentration range 1 1000 mg l Temperature Sensing element type integrated NTC measurement Measuring range 5 60 23 140 F Accuracy 0 5 Resolution 0 1K Response time to5 20s ba76004e01 01 2012 9 1 Technical data NitraLyt9P vs 700 IQ compensation Allowed temperature range Allowed pH range of the measuring medium Pressure resistance Type of protection Depth of immersion Operating position Fields of application Dimensions automatic in the range 0 40 C 32 104 F 9 2 Application conditions Measuring medium 0 C 40 C 32 104 F Storage transport 0 C 40 C 32 104 F 4 12 Sensor with the electrodes or blind plugs screwed in and the SACIQ sensor connection cable connected Max allowed overpressure 2 x 10 Pa 0 2 bar Sensor with the electrodes or blind plugs screwed in and the
46. tion VARiONS ES 2 e Make sure the depth of immersion is sufficient minimum 5 cm Make sure there are no air bubbles in front of the electrode membrane Conditioning times During the conditioning steps all relevant combination electrode voltages are indicated on the display Thus you can observe the conditioning process Regular stirring accelerates the conditioning process considerably Stirring with a stirring rod or the sensor itself is sufficient For calibration the standard solution is discarded after conditioning This is pointed out by a corresponding note in the calibration routine It is essential for an exact calibration result Use the Online help if you are unsure of anything during calibration 4 3 2 Result of the check Evaluation At the end of the check the result for the combination electrodes is shown on the display with successful or unsuccessful The exact check criteria are given in the Online help of the result display At the same time the result is entered in the log book as an info message There is no entry in the calibration history 4 10 ba76004e01 01 2012 NitraLyt9P vs 700 IQ Matrix adjustment check and calibration Evaluation Taking over the determined values 4 3 3 Result of the calibration With calibration the system automatically evaluates the condition of a combination electrode based on the data of its characteristic curve The drift pot
47. ture of the IQ SENSOR NET operating manual IQ Sensor Net Operating Manual System Operating Manual Ring Binder IQ Sensor Operating Manual MIQ Module Operating Manual MIQ Terminal Operating Manual Component Operating Manuals Fig 1 1 Structure of the Q SENSOR NET operating manual The IQ Sensor NET operating manual has a modular structure like the IQ SENSOR NET itself It consists of a system operating manual and the operating manuals of all the components used Please file this component operating manual in the ring binder of the system operating manual 76004 01 01 2012 Overview NitraLyt9P vs 700 IQ Electrodes Automatic chloride compensation 1 2 Structure of the nitrate sensor NitraLyt P vs 700 IQ 2 3 4 5 Fig 1 2 Structure of the nitrate sensor NitraLyt P S 700 IQ Protective hood Temperature probe Electrode support with electrodes Sensor shaft c1 Plug head connector An 700 IQ sensor ready to measure requires a reference electrode and an ion sensitive electrode for the main parameter ammonium The electrodes are screwed into the electrode support The electrode support has two receptacles for this With the aid of the automatic chloride compensation the influence of chloride ions on nit
48. values This step is started by pressing C again A comfortable menu guided routine guides you through the matrix adjustment All steps are easily and understandably explained on the display In addition you can call up an Online help for each step To do SO use the arrow keys A V 4 gt or toggle switch A V to move the highlighting to the Online help menu item and press lt OK gt A help text with detailed information on the relevant operating step appears on the display It provides for example important instructions on how to keep the correct basic conditions When is pressed once again the display returns to the current operating step After installing a new or different electrode you have to zero the electrode to facilitate a long term evaluation Details on electrode zeroing see section 4 1 76004 01 01 2012 Matrix adjustment check and calibration NitraLyt9P vs 700 IQ Practical instructions The nitrate concentration has to be determined immediately after taking the sample as the nitrate content changes very quickly due to the micro organisms that are present It is best to take the sample using a syringe filter for transport to the laboratory or to stabilize it otherwise When adding stabilizing solutions the dilution factor has to be taken into account While determining the reference concentrations in the lab step 2 you can use the sensor for control purposes again by switching the
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