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horiba 5002S-10C Скачать руководство пользователя страница 43

31

Electrode Preparation

Calibration

Measurement

After Measurement

M

easurement operation

Before operation



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 temperature as close as possible by,
for example, using a thermostatic bath. The temperature
difference may cause measurement errors.



Measure the sample solution only once after adding the pH

-

adjusting ISA.
Also, perform the measurement immediately after adding the
pH

-

adjusting ISA.

The ammonia in the stirred sample solution gets diffused as
time passes, causing the measurement result to vary.

* ：

Prepare 5 mol/L aqueous solution of sodium hydroxide, or pur-
chase the pH-adjusting ISA available as consumables.
(

“Consumables” (page 66))

Note

Note

Syringe for
adjusting pH

pH-adjusting ISA

*

Items to be prepared

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Содержание 5002S-10C

Страница 1: ...Instruction Manual Ammonia Electrode 5002S 10C ELECTRODE...

Страница 2: ...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 RESULTING FROM ANY MALFUNCT...

Страница 3: ...far as the safety and usage precautions for the product are observed Do not throw away this product without any good reason Unit name Hazardous substance Lead Pb Mercury Hg Cadmium Cd Hexavalent chrom...

Страница 4: ...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 5: ...for calibration and measurement must not come in contact with the skin or consumed These solutions stimulate the eyes and skin If these solutions come in contact with your skin or eyes flush immediat...

Страница 6: ...pH measurement is dry soak the membrane of the glass electrode for pH measurement in the internal solution for at least 12 hours Using it in a dry state will cause measurement errors Do not get the e...

Страница 7: ...es how to operate the meter to which the ammonia electrode is connected Electrode Stand Instruction Manual This manual mainly discusses how to operate the electrode stand which holds the ammonia elect...

Страница 8: ......

Страница 9: ...ling the electrode 8 Rinsing the electrode 12 Connecting the electrode to the meter 13 Calibration 15 Standard solutions 16 Calibration operation 17 Measurement 27 Requirements for sample and standard...

Страница 10: ...8 Consumables 41 Troubleshooting 47 When accurate measurement is not possible 48 Reference 53 Ammonia electrodes 54 Characteristics of ammonia electrode 57 Material 63 Specifications 64 External dimen...

Страница 11: ...figuration 3 Fig 3 Names of parts 4 Fig 4 Structure of ammonia electrode 54 Fig 5 Abundance ratio between ammonia NH3 and ammonium ion NH4 55 Fig 6 Conversion from ammonium ions NH4 to ammonia NH3 55...

Страница 12: ...30 Table 2 Check list 48 Table 3 Relationship between temperature of ion selective electrode and theoretical slope 58 Table 4 Relationship between temperature of ammonia electrode and theoretical slo...

Страница 13: ...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 14: ...ms This product is a consumable item For details on purchasing an electrode and reagent refer to Consumables page 66 1000 mg L Standard solution 50 mL 100 mg L Standard solution 50 mL Internal solutio...

Страница 15: ...asured with this one electrode The ammonia electrode consisting of membrane and liquid junction of the glass electrode for pH measurement has a double junction structure This minimizes the interferenc...

Страница 16: ...w Fig 3 Names of parts Internal solution fill port Electrode cap Cable Electrode connector BNC connector Support pipe Membrane cap pH glass ion selective membrane Membrane Protective cap Glass electro...

Страница 17: ...s the procedure for measuring the ammonium ion concentration 1 Measurement preparation 2 4 3 1 Fill with internal solution page 10 Rinse with pure water page 11 Attach the page 9 Connect the electrode...

Страница 18: ...onditioning of the electrode before calibration For details on conditioning refer to Conditioning of the electrode page 21 1 2 Perform calibration page 18 Prepare two types of solutions for calibratio...

Страница 19: ...Measurement After Measurement Electrode Preparation This chapter describes the preparation that must be performed before using the product Assembling the electrode 8 Rinsing the electrode 12 Connecti...

Страница 20: ...internal solution before use Use the internal solution included in the package or available as a consumable sold separately by HORIBA Advanced Techno Consumables page 66 When disposing of the protect...

Страница 21: ...n lint free paper or cloth 4 Fill the internal solution inside until it reaches around 1 mm height inside the membrane cap Take care to ensure that the internal solution in the protective cap does not...

Страница 22: ...by turning it clockwise 6 Open the rubber stopper of the internal solution fill port 7 Fill the internal solution with the syringe until it comes up to the line shown in the figure with arrow Rubber...

Страница 23: ...ve the membrane cap attached on the electrode soaked in the beaker filled with the internal solution for 15 minutes or longer Conditioning of the electrode page 21 Take sufficient care to ensure that...

Страница 24: ...ng procedure 1 Rinse the electrode with pure water Make sure that the membrane part has been well rinsed with pure water 2 Wipe off the moisture Wipe off the moisture using soft and clean lint free pa...

Страница 25: ...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 26: ...14...

Страница 27: ...Electrode Preparation Calibration Measurement After Measurement Calibration This chapter describes calibration Standard solutions 16 Calibration operation 17...

Страница 28: ...e package or available as consumables by HORIBA Advanced Techno 100 mg L NH4 standard solution Use the standard solution included in the package or available as consumables by HORIBA Advanced Techno 1...

Страница 29: ...operation Assembling the electrode page 8 Rinsing the electrode page 12 Perform conditioning in the following cases Before the first use Before use after storage for one week or longer If the electro...

Страница 30: ...with different concentrations Always use new standard solution for calibration After the standard solutions 50 mL included in the package is used up use the standard solution 500 mL available as consu...

Страница 31: ...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 of...

Страница 32: ...ion slowly with a magnetic stirrer 5 Rinse the electrode with pure water Make sure that the membrane part has been well rinsed with pure water 6 Wipe off the moisture Wipe off the moisture using soft...

Страница 33: ...In the following cases perform the conditioning for 15 minutes or longer before calibration Before the first use Before use after storage for one week or longer After the replacement of the membrane c...

Страница 34: ...bration as described in the Meter Instruction Manual 10 When the first calibration is finished take out the electrode from the solution for calibration If air bubbles remain on the membrane it may res...

Страница 35: ...off the moisture Wipe off the moisture using soft and clean lint free paper or cloth 13 Soak the electrode in the second solution for calibration prepared in step 4 Soak the membrane cap fully into t...

Страница 36: ...Manual When the second calibration is finished the slope of the electrode is displayed 16 Check the slope on the meter For details on how to check the slope refer to the Meter Instruction Manual If a...

Страница 37: ...t slope is at least 80 If the slope is less than 80 the measurement may not be performed accurately The possible causes of calibration failure are Membrane is dirty or broken Change in the internal so...

Страница 38: ...26...

Страница 39: ...aration Calibration Measurement After Measurement Measurement This chapter describes measurement Requirements for sample and standard solutions 28 Measurement hints 29 Measurement units 30 Measurement...

Страница 40: ...se electrode deterioration The standard solution in calibration and the sample solution in measurement shall have almost the same temperature Match the temperature as close as possible by for example...

Страница 41: ...otential drift When it happens reduce the influence of the temperature changes by covering the magnetic stirrer with heat insulation such as polystyrene foam or using a thermostatic bath Soak the memb...

Страница 42: ...Refer to the following table to convert the measurement unit Table 1 Ammonium ion concentration measurement unit conversion table Ammonium ion concentration mol L Ammonium ion concentration mg L Ammon...

Страница 43: ...using a thermostatic bath The temperature difference may cause measurement errors Measure the sample solution only once after adding the pH adjusting ISA Also perform the measurement immediately after...

Страница 44: ...been well rinsed with pure water 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 Redu...

Страница 45: ...oak the electrode in the sample solution prepared in step 1 Soak the membrane cap fully into the sample solution 5 Shake the electrode to remove any air bubbles remaining on the membrane Do not touch...

Страница 46: ...e from the sample solution 8 Rinse the electrode with pure water Make sure that the membrane part has been well rinsed with pure water 9 Wipe off the moisture Wipe off the moisture using soft and clea...

Страница 47: ...Electrode Preparation Calibration Measurement After Measurement After Measurement This chapter describes how to keep the electrode after measurement How to keep the electrode 36...

Страница 48: ...e Make sure the electrode used for measurement is kept soaked in the internal solution until the next measurement is started When the electrode will not be used for one week or longer store it as desc...

Страница 49: ...er describes the storage procedure of the electrode as well as the lifespan and replacement procedure of each part Storage 38 Main unit of electrode 38 Consumables 41 Consumables and replacement perio...

Страница 50: ...llowing procedure Main unit of electrode 1 Turn the electrode with the membrane cap upward and remove the membrane cap by turning it counterclockwise 2 Drain the internal solution by turning the elect...

Страница 51: ...39 Maintenance 3 Close the rubber stopper of the internal solution fill port 4 Rinse the membrane cap and the electrode with pure water...

Страница 52: ...teps 4 and 5 7 Fill 6 mL of the internal solution with the syringe into the protective cap 8 Attach the protective cap Store the glass electrode for pH measurement and the membrane cap safely without...

Страница 53: ...p Response time page 60 The main unit of the electrode and ion electrode tip are not repairable parts Service life Replace after approx 40 hours Membrane cap Replace consumables at the period whicheve...

Страница 54: ...ase the ammonia electrode including the membrane cap 3200698386 Use this up before the expiration date displayed on the bottle Use this up before the expiration date displayed on the bottle Use this u...

Страница 55: ...the old membrane cap upward and remove the old membrane cap by turning it counterclockwise 2 Drain the internal solution by turning the electrode with the membrane cap downward and opening the rubber...

Страница 56: ...it reaches around 1 mm height inside the membrane cap 4 Firmly attach the membrane cap by turning it clockwise 5 Fill the internal solution with the syringe until it comes up to the line shown in the...

Страница 57: ...the electrode soaked in the beaker filled with the internal solution for 15 minutes or longer Conditioning of the electrode page 21 Take sufficient care to ensure that the glass electrode for pH measu...

Страница 58: ...46...

Страница 59: ...Troubleshooting Troubleshooting This chapter describes the measures to take when accurate measurement is not possible When accurate measurement is not possible 48...

Страница 60: ...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 61: ...remove any air bubbles remaining on the membrane If air bubbles remain on the membrane it may result in inaccurate measurement Note on page 34 Is a solution at a temperature outside the measurement t...

Страница 62: ...tly Step 7 of Assembling the electrode page 10 Was the standard solution made using pure water Prepare the standard solution using pure water Preparing the standard solution with water other than pure...

Страница 63: ...onger If not it may cause measurement errors or decrease in the response rate during calibration Note on page 21 Is there any perforation in the membrane Check that when a 1 mL of sodium hydroxide is...

Страница 64: ...e dry state it may cause measurement errors or decrease in the response rate during calibration Perform conditioning before calibration Note on page 21 If it will not be used for one week or longer st...

Страница 65: ...ters regarding ammonia electrodes Ammonia electrodes 54 Characteristics of ammonia electrode 57 Measurement range 57 Impact of pH 58 Impact of temperature 58 Impact of stirring 59 Impact of coexistent...

Страница 66: ...support pipe has a membrane cap provided with a membrane attached to it The internal solution is filled between the support pipe and the glass electrode for pH measurement The membrane attached to th...

Страница 67: ...mmonium ions NH4 in the sample solution are converted to ammonia NH3 gases dissolved in the aqueous solution and as a result ammonia NH3 can permeate through the membrane For example when sodium hydro...

Страница 68: ...d pH log H and pKw log Kw is assumed the expression shown below can be obtained Thus the following expression for determining the ammonia concentration pNH3 can be obtained from the expressions 3 and...

Страница 69: ...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 th...

Страница 70: ...ial gradient is The standard solution in calibration and the sample solution in measurement shall have almost the same temperature Match the temperature as close as possible Table 3 Relationship betwe...

Страница 71: ...alibration again When the electrode is moved to a place that has a different temperature wait until the temperature of the electrode becomes same as the temperature of that place before using the elec...

Страница 72: ...ne and alcohol is included the membrane is damaged or permeated by the organic solvent so that indication becomes unstable to inhibit measurement Response time The response times of ammonia electrodes...

Страница 73: ...n measurement This reduces the errors in the ion concentration measurement due to the electromotive force changes caused by the temperature changes of the glass electrode for pH measurement Measuremen...

Страница 74: ...62...

Страница 75: ...Specifications Material This chapter describes the specifications external dimensions and consumables of the product Specifications 64 External dimensions 65 Consumables 66...

Страница 76: ...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 temperature r...

Страница 77: ...65 Specifications External dimensions Unit mm 16 5 O D 18 85 150...

Страница 78: ...ctrode 5002S 10C 3200698386 Ammonia electrode membrane cap Membrane cap 3 units 3200705774 1000 mg L ammonium ion standard solution 500 NH4 SH 500 mL 3200697171 100 mg L ammonium ion standard solution...

Страница 79: ...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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