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Troubleshooting

T

roubleshooting

This chapter describes the measures to take when accurate measurement
is not possible.

When accurate measurement is not

possible........................................... 48

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Содержание 6582S-10C

Страница 1: ...Instruction Manual Combination type Potassium Ion Selective Electrode 6582S 10C ELECTRODE...

Страница 2: ...t to change without notice Warranty and responsibility This product is not covered by warranty because it is a consumable item HORIBA Advanced Techno Co Ltd SHALL NOT BE LIABLE FOR ANY DAMAGES RESULTI...

Страница 3: ...esult in death or serious injury This is to be limited to the most extreme situations This indicates a potentially hazardous situation which if not avoided could result in death or serious injury This...

Страница 4: ...it contains important safety messages Precautions for chemicals Solutions used for calibration and measurement must not come in contact with the skin or consumed These solutions stimulate the eyes an...

Страница 5: ...f the ion selective membrane is dry soak the electrode in pure water for at least one hour Using it in a dry state will cause measurement errors Do not get the electrode connector wet or touch it with...

Страница 6: ...This manual mainly discusses how to operate the meter to which the combination type potassium ion selective electrode is connected Electrode Stand Instruction Manual This manual mainly discusses how...

Страница 7: ...for first time 10 Filling with internal solution 12 Rinsing the electrode 15 Connecting the electrode to the meter 16 Calibration 17 Standard solutions 18 Calibration operation 19 Measurement 29 Requ...

Страница 8: ...hen accurate measurement is not possible 48 Reference 53 Ion selective electrodes 54 Measurement principle of ion selective electrode 56 Characteristics of potassium ion selective electrode 60 Materia...

Страница 9: ...e ion selective electrode 54 Fig 5 State of liquid junction of reference electrode 55 Fig 6 Relationship between monovalent cation concentration activity and electrode potential 57 Fig 7 Difference in...

Страница 10: ...59 Table 5 Relationship between temperature of ion selective electrode and theoretical slope 62 Table 6 Relationship between temperature of potassium ion selective electrode and theoretical slope 62...

Страница 11: ...his chapter describes what you should know before using the product Confirmation of the items included in the package 2 About this product 3 Product features 3 System configuration 3 Names of parts 4...

Страница 12: ...e item For details on purchasing an electrode and reagent refer to Consumables page 70 1000 mg L standard solution 50 mL 100 mg L standard solution 50 mL Internal solution 50 mL Syringe Protective pip...

Страница 13: ...contamination of the sample solution by the internal solution outflow the interference on the electrode potential and so on Since the structure of the liquid junction movable sleeve type is capable o...

Страница 14: ...ion electrode tip against damage from gravel or other foreign matters If there is no risk of damage it is not required to attach it Ion selective membrane Liquid junction When the ion electrode tip is...

Страница 15: ...figure shows the procedure for measuring the K concentration 1 Measurement preparation 1 2 4 3 Meter Fill with internal solution page 12 Connect the electrode to the meter page 16 Attach the ion elec...

Страница 16: ...Measurement In the following cases perform conditioning of the electrode before calibration For details on conditioning refer to Conditioning of the electrode page 23 1 2 Perform calibration page 22...

Страница 17: ...measurement When the electrode will not be used for two weeks or longer store it as described on page 44 2 1 Rinse the electrode with pure water page 42 Discharge the internal solution from the electr...

Страница 18: ...8...

Страница 19: ...lectrode Preparation This chapter describes the preparation that must be performed before using the product Assembling the electrode only when use for first time 10 Filling with internal solution 12 R...

Страница 20: ...emble the electrode as described in the following procedure 1 Remove the protective cap 2 Remove the rubber cap The rubber cap will not be used again Dispose of it according to the local rules and reg...

Страница 21: ...11 Electrode Preparation Calibration Measurement After Measurement 3 Attach the ion electrode tip by turning it clockwise Ion electrode tip...

Страница 22: ...ement is performed in the state in which there is not much internal solution an inflow of sample solution into the electrode will result in accurate measurements no longer being possible Use the inter...

Страница 23: ...of the internal solution fill port 4 Fill the internal solution with a dropper Fill until the solution surface comes up to just below the internal solution fill port 5 Spread soft and clean lint free...

Страница 24: ...ion fill port It is best that the internal solution oozes out slightly If the outflow is extremely little the potential of the reference electrode will become unstable and susceptible to stir In such...

Страница 25: ...described in the following procedure 1 Rinse the electrode with pure water 2 Wipe off the moisture Wipe off the moisture using soft and clean lint free paper or cloth 3 Make sure that there are no dir...

Страница 26: ...the connector of the meter to which the electrode will be connected refer to the instruction manual of the meter 1 Connect the electrode connector to the meter When disconnecting the electrode from t...

Страница 27: ...Electrode Preparation Calibration Measurement After Measurement Calibration This chapter describes calibration Standard solutions 18 Calibration operation 19...

Страница 28: ...the package or available as consumables by HORIBA Advanced Techno 100 mg L K standard solution Use the standard solution included in the package or available as consumables by HORIBA Advanced Techno 1...

Страница 29: ...efore the calibration operation Filling with internal solution page 12 Rinsing the electrode page 15 Perform conditioning before the first use before use after storage for two weeks or longer or if th...

Страница 30: ...sed as an example in the following steps 3 Prepare the first solution for calibration 1 Put 50 mL of 100 mg L standard solution into a 100 mL beaker 2 Add 1 mL of ISA 3 Stir the solution slowly with a...

Страница 31: ...ed so that the stir bar will rotate 3 or 4 turns per second If swirling occurs on the surface the stirring speed is too fast Reduce the speed to a level where swirling does not occur Additive amount o...

Страница 32: ...Rinse the electrode with pure water 6 Wipe off the moisture Wipe off the moisture using soft and clean lint free paper or cloth 7 Open the rubber stopper of the internal solution fill port Rubber sto...

Страница 33: ...ction Conditioning of the electrode In the following cases perform conditioning of the electrode before calibration Before the first use Before use after storage for two weeks or longer If the electro...

Страница 34: ...sure that the rubber stopper of the internal solution fill port is open during calibration If it is closed the internal solution does not ooze out very much from the liquid junction As a result the p...

Страница 35: ...tion for calibration 12 Rinse the electrode with pure water 13 Wipe off the moisture Wipe off the moisture using soft and clean lint free paper or cloth 14 Soak the electrode in the second solution fo...

Страница 36: ...pen during calibration If it is closed the internal solution does not ooze out very much from the liquid junction As a result the potential of the reference electrode will become unstable and suscepti...

Страница 37: ...n the second calibration is finished take out the electrode from the solution for calibration 19 Close the rubber stopper of the internal solution fill port Check that slope is at least 80 If the slop...

Страница 38: ...water 21 Wipe off the moisture Wipe off the moisture using soft and clean lint free paper or cloth When disposing of the standard solution and paper or cloth soaked in the standard solution follow the...

Страница 39: ...aration Calibration Measurement After Measurement Measurement This chapter describes measurement Requirements for sample and standard solutions 30 Measurement hints 31 Measurement units 31 Measurement...

Страница 40: ...e kept at 50 C or less Exceeding 50 C may cause electrode deterioration The standard solution in calibration and the sample solution in measurement shall have almost the same temperature Match the tem...

Страница 41: ...iquid junction The measurable pH range differs depending on the type and structure of the ion selective electrode The pH range is generally smaller when the concentration of the ions to be measured is...

Страница 42: ...tion The calibration characteristics vary depending on the temperature The standard solution in calibration and the sample solution in measurement shall have almost the same temperature Match the temp...

Страница 43: ...oth It is best to control the stirring speed so that the stir bar will rotate 3 or 4 turns per second If swirling occurs on the surface the stirring speed is too fast Reduce the speed to a level where...

Страница 44: ...to the liquid junction Do not touch the stir bar with the electrode It may damage the electrode Make sure that the rubber stopper of the internal solution fill port is open during measurement If it i...

Страница 45: ...concentration is finished take out the electrode from the sample solution It is recommended to place the electrode in the electrode stand If gravel or other foreign matter gets in the sample solution...

Страница 46: ...36 9 Close the rubber stopper of the internal solution fill port 10 Rinse the electrode with pure water 11 Wipe off the moisture Wipe off the moisture using soft and clean lint free paper or cloth...

Страница 47: ...Electrode Preparation Calibration Measurement After Measurement After Measurement This chapter describes cleaning of the electrode after measurement How to clean the electrode 38...

Страница 48: ...an the electrode Clean the electrode after use as described in the following procedure 1 Open the rubber stopper of the internal solution fill port View video View video Dropper Item to be prepared Ru...

Страница 49: ...tinue pressing from above until all of the internal solution is discharged Extracting from the internal solution fill port Turn the electrode upward and extract the internal solution with a dropper Wh...

Страница 50: ...trode with pure water 5 Wipe off the moisture Wipe off the moisture using soft and clean lint free paper or cloth 6 Make sure that there are no dirt and crystals of internal solution adhered to the ar...

Страница 51: ...paration Calibration Measurement After Measurement 7 Attach the protective cap Do not get water and foreign matter inside of the protective cap when attaching it to the electrode It may shorten the li...

Страница 52: ...42...

Страница 53: ...chapter describes the storage procedure of the electrode as well as the lifespan and replacement procedure of each part of the electrode Storage 44 Main unit of electrode 44 Consumables 45 Consumable...

Страница 54: ...and discharge the internal solution After Measurement page 37 2 Attach the protective cap Do not get water and foreign matters inside of the protective cap when attaching it to the electrode It may s...

Страница 55: ...and ion electrode tip are not repairable parts Service life Replace after approx 400 hours Ion electrode tip Replace consumables at the period whichever occurs first approx one year after purchase or...

Страница 56: ...ination type potassium ion selective electrode including the ion electrode tip 3200697409 Use this up before the expiration date displayed on the bottle Use this up before the expiration date displaye...

Страница 57: ...Troubleshooting Troubleshooting This chapter describes the measures to take when accurate measurement is not possible When accurate measurement is not possible 48...

Страница 58: ...ave almost the same temperature Match the temperature as close as possible by for example using a thermostatic bath The temperature difference may cause measurement errors Requirements for sample and...

Страница 59: ...remove any air bubbles remaining on the ion selective membrane If air bubbles remain on the ion selective membrane it may result in inaccurate measurement Note on page 35 Is a solution at a temperatur...

Страница 60: ...e standard solution with water other than pure water will cause measurement errors Standard solutions page 18 Is calibration performed before each measurement Perform calibration before each measureme...

Страница 61: ...ths after opening the bottle Do not return the standard solution to its bottle once it has come out of the bottle Consumables page 45 Is the amount of the discharging internal solution appropriate Pre...

Страница 62: ...52...

Страница 63: ...lectrodes 54 Measurement principle of ion selective electrode 56 About activity 58 Characteristics of potassium ion selective electrode 60 Measurement range 60 Impact of pH 61 Impact of temperature 62...

Страница 64: ...ion selective electrode where two electrodes are integrated Fig 4 Structure of combination type ion selective electrode Electrodetype Electrode function Ion selective electrode An electromotive force...

Страница 65: ...ple solution or standard solution as a mechanism of generating such a stable potential The stable potential with almost no change V 0 can be generated by the diffusion of the outflow of the internal s...

Страница 66: ...ation measurement using an ion selective electrode 2 303 RT nF is the change of the electrode potential generated when the ion concentration activity is changed by a factor of ten times and is referre...

Страница 67: ...ionship between monovalent cation concentration activity and electrode potential To perform the above quantitative analysis using an ion selective electrode either 1 use an ion meter or meter with an...

Страница 68: ...ed in the sample solution which can be represented by the Nernst equation page 56 According to the above equation if the potential gradient is determined by the calibration using the standard solution...

Страница 69: ...1 10 3 mol L the activity coefficient becomes lower than 1 If the activity coefficient becomes lower than 1 activity ion concentration an error occurs in the potential measurement An ISA is used to r...

Страница 70: ...of around 1 10 1 mol L and a minimum of around 1 10 6 mol L to 1 10 5 mol L Furthermore when lower concentration is measured where the linearity is not established perform calibration at two points in...

Страница 71: ...e To prevent these effects set the pH to an appropriate value in advance and keep it constant One simple method to set the pH of the sample solution to an appropriate value for measurement is to prepa...

Страница 72: ...temperature on the measurement of the K concentration is to reduce the difference between the temperature of the standard solution in calibration and the temperature of the sample solution in measurem...

Страница 73: ...t ions Although ion selective electrodes have good selectivity with respect to the ions to be measured they may react to the other ions The ions which interfere the measurement of the concentration of...

Страница 74: ...s that cause a 10 error in the reading and their concentrations If drift of the potential or reduction in the response speed occurs high interference by the ions shown in the table is likely to be occ...

Страница 75: ...to reach a reading value that is 95 stabilized is within 30 seconds approximately in the case of a standard solution with a concentration ranging from 10 mg L to 100 mg L Impact of light With some typ...

Страница 76: ...t This reduces the errors in the ion concentration measurement due to the electromotive force changes caused by the temperature changes of the ion selective electrode and reference electrode Measureme...

Страница 77: ...Specifications Material This chapter describes the specifications external dimensions and consumables of the product Specifications 68 External dimensions 69 Consumables 70...

Страница 78: ...nge differs depending on the ion concentration 3 This is the electrode potential gradient in the calibration using the 10 mg L and the 100 mg L standard solutions at 25 C Item Description Operating te...

Страница 79: ...69 Specifications External dimensions Unit mm 16 5 O D 18 85 150...

Страница 80: ...m ion selective electrode 6582S 10C 3200697409 Potassium ion selective electrode tip 7682S Electrode tip 3200697413 1000 mg L potassium ion standard solution 500 K SH 500 mL 3200697183 100 mg L potass...

Страница 81: ...t jp For any questions regarding this product please contact your local agency or inquire from the following website http global horiba com contact_e index htm 31 Miyanonishi cho Kisshoin Minami ku Ky...

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