Instruction Manual COMPACT K + METER B-731
Contents
1. Li 7777 Press the CAL switch Press the CAL switch for 0 5 seconds 1 for 0 5 seconds Coef 1 Coef 1000 CAL switch TU I IIIIIII 5 Press the MEAS switch to apply the setting The measurement mode is returned 22 7 6 Sensor voltage display mode Displays the voltage output from the sensor Use this function to evaluate the sensor performance or to create your own calibration line or curve 1 Press and hold the MEAS switch for over 3 seconds in the measurement mode to kg 10a enter the special setting mode m g L All items appear on the LCD and then the dis ppm play changes as shown right 2 Press the CAL switch until mV appears mV 3 Press the MEAS switch for 0 5 seconds The voltage output from the sensor is displayed Lu A 4 Press the MEAS switch to return the measurement mode H 23 7 7 Low calibration value setting Used to change calibration value 39 ppm to 1900 ppm for low concentration The initial setting is 150 ppm If you prepare a calibration solution originally change this setting as necessary If this setting is changed from the default value measurement results may not meet the specified reproducibility Perform calibration at a concentration near the sample to be measured 1 Press and hold the MEAS switch for over 3 seconds in the measurement mode to enter the special setting mode All items appea2. ON again Software version display mode The current software version is displayed This information may be asked for depending on your inquiry 1 Press and hold the MEAS switch for over 3 seconds in the measurement mode to enter the special setting mode All items appear on the LCD and then the dis play changes as shown right Press the CAL switch until Init appears Press the CAL switch for 0 5 seconds The software version is displayed 25 kg 10a m g L ppm TA gt TS mn pem LL 8 Appendix 8 1 Frequently asked questions Question Answer How long is the sensor s service life It depends on measurement samples and conditions It should be approx 1500 measurements for typical samples Note that sensor deterioration and failure are not included in the warranty How can check the sensor s condition Perform two point calibration If calibration error occurs the sensor is deteriorated Replace the sensor What shall I do if two point calibration is failed Dirt in the response membrane and liquid junction is the main cause of calibration failure Clean the sensor thoroughly with water then gently wipe off the response membrane with soft cloth or paper If calibration is still failed after this replace the sensor What factors interfere measurement Strong acids and s
3. Er3 is displayed right after power ON The internal IC in the meter defects Replace the product with new one the meter can not be repaired How can return all the settings of the special setting mode to the default settings Perform initialization refer to page 25 27 8 2 Specifications Model B 731 Measurement principle lon electrode method OE 0 3 mL or more Measurement K 39 ppm mg L to 3900 ppm mg L range 20 kg 10a to 2000 kg 10a D isplay range 0 ppm to 9900 ppm 1 0 ppm to 99 ppm 1 ppm Range and 2 100 ppm to 990 ppm 10 ppm resolution valid digits 3 1000 ppm to 9900 ppm 100 ppm Calibration Two point 4 Accuracy 10 of reading value 9 Display Custom monochrome digital LCD Operating 5 C to 40 C temperature humidity 85 or less in relative humidity no condensation Power CR2032 batteries x2 Battery life Approx 400 hours in continuous use Main materials ABS epoxy Outer dimensions 164 mm x 29 mm x 20 mm excluding projections mass Approx 50 g meter only without batteries M Auto range change temperature compensation 2 C in f ion fixed waterproof 6 reading locking automatic power OFF 2 3 4 5 76 0 05 mL or more if the sampling sheet is used Only for the sample extracted in the proportion of 1 part of soil to 5 of water When the m
4. and Functions 1 12 13 noo 14 15 Description 1 Flat sensor Place a sample on this sensor This sensor consists of a liguid junction A and response membrane B Both A and B must be covered with the sample 2 Light shield cover Shields the sensor from light which affects the sensor Close the light shield cover before starting measurement If using the sampling sheet holder cover refer to page 14 shield the flat sensor from light with an alternative 3 Lithium batteries CR2032 x2 4 IMEAS switch Switches the calibration mode to the measurement mode activates deactivates the reading locking function in the measurement mode and starts applies settings in the special setting mode 5 ON OFF switch Turns ON OFF the meter 6 CAL switch Starts calibration and switches items settings in the special setting mode 7 Waterproof gasket Makes the meter waterproof 2 No Name Description Strap eyelet A strap can be attached here Blinks until the measured value is stabilized and lights 9 MEAS icon steadily when the measured value is settled while the reading locking function is active Blinks during calibration and lights steadily when calibration NON ical is finished Lights up when the batteries are and need to be 11 Battery alarm icon changed 12 Tempe
5. 3 7 7 Low calibration value setting 24 7 8 initialization mode etn rennes 25 7 9 Software version display mode 25 8 Appendix ak mana 26 8 1 Frequently asked questions 26 8 2 Sp cifiCatloris diee it nanah 28 83 Interfering lors erinnern 29 1 Introduction The COMPACT K METER B 731 incorporates HORIBA original flat sensor and enables accurate measurement of potassium ion K concentrations from a single drop of a sample 11 Items in package Meter model B 731 Sensor S030 1 Meter B 731 1 Storage case 1 Batteries CR2032 2 K 150 ppm 1 Dedicated standard solutions K 2000 ppm 1 Pipette 1 Sampling sheet B 5 sheets 1 Instruction manual 1 B 731 Quick start manual 1 1 2 Consumable parts sold separately Part No Name Type Application 3200459868 Sensor S030 K B 731 3200457720 Standard Y031L 150 ppm 731 low concentration 3200457719 Solutions Y031H K 2000 ppm 8 731 high concentration B 711 B 712 B 713 B 721 3200459736 Sampling sheet Yoyg B 722 B 731 B 741 B 742 holder cover B 743 B 751 B 711 B 712 B 713 B 721 3200053858 Sampling sheet B YO46 100 sheet pack B 722 B 731 B 741 B 742 B 743 B 751 2 Part Names
6. 90 displayed returns the value to 0 01 Coef 1 00 Coef 0 01 CAL switch I IIII switch H LL gt IIIIIII Press the CAL switch Press the CAL switch for 0 5 seconds 1 for 0 5 seconds Coef 1 10 Coef 9 90 II CAL switch IIIIIIII II I III II_I_III 5 Press the MEAS switch to apply the setting The measurement mode is returned 21 7 5 sary Adding compensation setting Used to select the coefficient 1000 to 1000 for adding compensation The values after compensation are displayed as results The initial setting is 0 If measurement is affected by a known factor change this setting as neces The adding compensation function does not change the specified measurement range or product performance 1 Press and hold the MEAS switch for over 3 seconds in the measurement mode to enter the special setting mode All items appear on the LCD and then the dis ppm play changes as shown right 2 Press the CAL switch until and b 3 Press the MEAS switch for 0 5 seconds The current setting is displayed kg 10a m g L 4 Press the CAL switch for 0 5 seconds to increase the value Pressing the CAL switch continuously increases the value in turn Pressing the CAL switch with 1000 displayed returns the value to 1000 Coef 0 Coef 1000 II CAL switch
7. EAS switch for 0 5 seconds The current setting is displayed 4 Press the CAL switch for 0 5 seconds to change the setting Pressing the CAL switch continuously switches the display in turn One point calibration in high concentration Press the CAL switch CAL for 0 5 seconds Lf III I Two point calibration Press the CAL switch for 0 5 seconds One point calibration W in low concentration Press the CAL switch for 0 5 seconds CAL 1_ LU f 5 Press the MEAS switch to apply the setting The measurement mode is returned 20 7 4 1 00 Multiplying compensation setting Used to select the coefficient 0 01 to 9 90 for multiplying compensation The values after compensation are displayed as results The initial setting is If the sample is diluted condensed change this setting as necessary The multiplying compensation function does not change the specified measurement range or product performance 1 Press and hold the MEAS switch for over 3 seconds in the measurement mode to enter the special setting mode All items appear on the LCD and then the dis play changes as shown right 2 Press the CAL switch until andA appear 3 Press the MEAS switch for 0 5 seconds II The current setting is displayed 4 Press the CAL switch for 0 5 seconds to increase the value Pressing the CAL switch continuously increases the value in turn Pressing the CAL switch with 9
8. HORIBA Scientific e Instruction Manual COMPACT K METER B 731 LAGUAtwin CODE GZ0000297061 HORIBA lt Quick Operation Guide This quick operation guide introduces the basic operations Refer to the respective chapters for further information Press the ON OFF button over 2 seconds to turn ON the meter HORIBA DAN Perform calibration at least once da Calibration for accurate measurement Pour the 2000 ppm standard solution Close the light shield cover 3 Press the CAL button over 2 seconds When and Q light up the calibration is completed Clean the sensor with water Press the MEAS button to enter the measurement mode _ M CAL 8 Measurement CD Pour some drops of sample 2 Close the light shield cover 8 When Q lights up the measurement is completed To lock the measured value press the MEAS button ALI Lon After Use Clean the sensor with water and then turn OFF the power Close the light shield cover before storage Make sure to store the sensor without any moisture The following settings can be changed Measurement unit Calibration points Temperature sensor voltage display Multiplying adding compensation Calibration value Two point calibr
9. an Battery Recycling Mark Contents 1 IntrOdUCtiO 1 121 lems in package reet eet m reae pn rtt Ee 1 2 Consumable parts sold separately 2 Part Names and Functions cesses enne 2 3 Handling 4 4 Basic Handling ooooooo oom 4 1 Inserting removing batteries 4 2 Attaching detaching the sensor 8 44 Storage 5 Calibration nm Ma ana 9 About calibratiOn an kaan naa 9 5 2 One point calibration in high concentration 10 5 3 One point calibration in low concentration 5 4 Two point calibration oocoooWooooococcocoo 6 Measurement bea kn naat 12 __33 3 12 6 2 Measurement operations 15 7 Special Setting Mode oom 16 7 1 Measurement unit setting ooooooo Woo 18 7 2 Temperature display mode 19 7 3 Calibration point setting Maa 20 7 4 Multiplying compensation setting 21 7 5 Adding compensation Setting 22 7 6 Sensor voltage display mode 2
10. ard solutions myself You can prepare standard solutions by dissolving potassium chloride in ion exchanged water to the specified concentration The measured value does not change after changing the sample If lights steadily the measured value is locked Press the MEAS switch to unlock the value If the value does not change after unlocking the sensor may be damaged Replace the sensor The temperature alarm icon blinks during measurement The measuring environment temperature may not meet the specified operating temperature 5 C to 40 C When the environment temperature is within the specified range and the alarm icon blinks replace the sensor The power is not turned ON Check that the batteries are inserted properly If the batteries are low replace them both with new ones at the same time Er1 is displayed right after power ON The internal IC in the meter may defect After Er1 is displayed the meter enters the initialization mode automatically and Init and appear Press the CAL switch for over 2 seconds to execute initialization and then turn OFF and ON again refer to page 25 If Er1 is still displayed after the initialization the internal IC in the meter defects Replace the product with new one the meter can not be repaired Er2 is displayed right after power ON The internal IC in the meter defects Replace the product with new one the meter can not be repaired
11. ation is recommended for accurate measurement Prewashing the sensor with the sample may provide accurate measurement Refer to page 6 to page 25 for detailed instructions Preface This manual describes the operation of the COMPACT K METER B 731 Be sure to read this manual before using the product to ensure proper and safe operation of the instrument Also safely store the manual so it is readily available whenever necessary Product specifications and appearance as well as the contents of this manual are subject to change without notice IM Warranty and Responsibility HORIBA Ltd warrants that the Product shall be free from defects in material and workmanship and agrees to repair or replace free of charge at option of HORIBA Ltd any malfunctioned or damaged Product attributable to responsibility of HORIBA Ltd for a period of one 1 year from the delivery unless otherwise agreed with a written agreement In any one of the following cases none of the warranties set forth herein shall be extended Any malfunction or damage attributable to improper operation Any malfunction attributable to repair or modification by any person not authorized by HORIBA Ltd Any malfunction or damage attributable to the use in an environment not specified in this manual Any malfunction or damage attributable to violation of the instructions in this manual or operations in the manner not specified in this manual Any malfun
12. ch compensation are displayed as results The initial setting is 1 00 7 5 Adding compensation setting page 22 Bees Used to select the coefficient 1000 to 1000 for H adding compensation The values after compensation CAL switch are displayed as results The initial setting is 0 16 mV CAL switch LIILII CAL II CAL switch n 1 CAL switch I II III CAL switch MEAS switch MEAS switch E MEAS Switch gt 7 6 Sensor voltage display mode page 23 Displays the voltage output from the sensor 7 7 Low calibration value setting page 24 Used to change calibration value 39 ppm to 1900 ppm for low concentration The initial setting is 150 ppm 7 8 Initialization mode page 25 All settings and calibration data are reset to the factory default values 7 9 Software version display mode page 25 The current software version is displayed Returns to the display for measurement unit setting 7 1 Measurement unit setting Used to select measurement unit 1 Press and hold the MEAS switch for over 3 kg 10a seconds in the measurement mode to m g L enter the special setting mode ppm All items appear on the LCD and then the display changes as shown above 2 Press the MEAS switch for 0 5 seconds The current setting is displayed 3 Press the CAL switch for 0 5 seco
13. ction or damage attributable to any cause or causes beyond the reasonable control of HORIBA Ltd such as natural disasters Any deterioration in appearance attributable to corrosion rust and so on Replacement of consumables such as the sensor and standard solutions HORIBA LTD SHALL NOT BE LIABLE FOR ANY DAMAGES RESULTING FROM ANY MALFUNCTIONS OF THE PRODUCT ANY ERASURE OF DATA OR ANY OTHER USES OF THE PRODUCT IM Trademarks Generally company names and brand names are either registered trademarks or trademarks of the respective companies R TM symbols may be omitted in this manual August 2012 2012 HORIBA Ltd Regulations INI Conformable Directive This eguipment conforms to the following directives and standards Directives the EMC Directive 2004 108 EC Standards the EMC Directive EN61326 1 2006 Class B Portable test and measurement equipment Information on Disposal of Electrical and Electronic Equipment and Disposal of Batteries and Accumulators The crossed out wheeled bin symbol with underbar shown on the product or accompanying documents indicates the product requires appropriate treatment collection and recycle for waste electrical and electronic equipment WEEE under the Directive 2002 96 EC and or waste batteries and accumulators under the Directive 2006 66 EC in the European Union The symbol might be put with one of the chemical symbols below In this case it satisfies the requirements of
14. easured value is out of the measurement range the displayed value blinks It should be used only as a guide Selectable between one point and two point calibrations Repeatability in measurement of a standard solution after calibration using the same standard solution IP67 no failure when immersed in water at a depth or 1 meter for 30 minutes But the product can not be used underwater 28 8 3 Interfering ions Sodium Potassium Nitrate Calcium Target ion ion ion ion Na K NO3 Ca K Rb Rb Mg 1x10 1x 101 10 1x103 Ba Sr Mg CL Fe Zn Ca Mg 1x105 4 x 10 1 1x 104 NH Br Fe Interfering Li 7x 103 9 x 107 10 ions and 1x103 Ca CIO Cu selectivity 7 x 107 3 x 108 1x 10 coefficients 3 x 10 NO at 10 mol L NH 4 x 103 7101 6 x 108 Na at 10 mol L at 1033 mol L 3 104 NO3 Na at 1073 mol L K 3 pH to 9 pH 2 pH to 9 pH 3 pH to 8 pH 4 pH to 12 pH pHrange ati0 mmol L 109 mol L at10 mol L at 10 mol L Na K NO3 a Selectivity coefficient is a concentration ratio of the interfering ion against the target ion which affects the target ion measurement value For example selectivity coefficient of potassium ion against sodium ion is 1 x 102 which means for the same concentration of potassium ion and sodium ion coexisting in a sample the sodium meas
15. eld cover and put some drops Light shield of the high concentration standard solution on cover the flat sensor to cover the entire flat sensor Washing the sensor with the standard solution beforehand may provide more accurate calibration Close the light shield cover and press the CAL switch for over 2 seconds and blink and the calibration value is displayed After the calibration is completed and stop blinking and light steadily Clean the sensor with tap water and remove moisture Press the MEAS switch for 0 5 seconds to enter the measurement mode and prepare for measurement One point calibration in low concentration Set One point calibration in low concentration refer to page 20 Open the light shield cover and put some drops Light shield of the low concentration standard solution on cover the flat sensor to cover the entire flat sensor Washing the sensor with the standard solution beforehand may provide more accurate calibration Close the light shield cover and press the CAL switch for over 2 seconds and blink and the calibration value is displayed After the calibration is completed and stop blinking and light steadily Clean the sensor with tap water and remove moisture Press the MEAS switch for 0 5 seconds to III enter the measurement mode and prepare 11 for measurement 10 5 4 Two point calibration Set Two point calibration refe
16. erproof gasket Be careful not to twist the waterproof gasket ll Detaching the sensor 1 Lift the sensor tongue tip and slide the sensor a little away from the meter 2 Pull out the sensor all the way from the meter Make sure that the sensor tongue is outside the meter case If the tongue is inserted between the case and the connector of the meter it may damage the connector Sensor tongue Good Wrong X a 19 2 Connector Sor Med me Meter When removing the sensor do not let any water get inside the meter If some moisture remains on the waterproof gasket wipe it off carefully 4 3 Power ON OFF Power ON 1 Press and hold the ON OFF switch for over 2 seconds SS The power is turned ON and the meter model number is displayed on the LCD 721 1 II I Power OFF 1 Press and hold the ON OFF switch for TT RU over 2 seconds The power is turned OFF e amp X 44 Storage 1 Clean the sensor with tap water and remove moisture on the sen sor and meter with soft cloth or paper 2 Close the light shield cover and the slide cap then store the meter Take care to store the sensor without moisture Avoid to immerse the sensor into liguid for a long time 5 Calibration 51 About calibration ll Calibration points The following 3 type calibrations are available One point calibration in high concentration for high concentration
17. ganic Svent Take care to scratch the flat sensor vel at RN AS Store the response membrane of the flat sensor in dry conditions If the response membrane gets wet for a long time it may become deformed Do not measure samples such as the following since they may damage the sensor or shorten its life Organic solvents oils adhesives cement alcohols concentrated acid 0 pH to 2 pH concentrated alkaline 12 pH to 14 pH or surfactants When using this product for the first time or after several weeks of disuse the sensor may be slow to respond In this case add some drops of 2000 ppm standard solution to the sensor and wait 10 minutes to an hour before use there is no need to turn the power ON For some sample types such as highly oily samples the measured value may be unstable A small amount of liquid or white powder may appear on the liquid junction of the flat sensor The appearance of this powder or solution is normal Simply rinse it off with water before use IM Battery Keep batteries out of reach of children If someone accidentally swallows a battery call a doctor immediately Do not throw batteries in fire Do not attempt to recharge batteries The provided batteries are intended for use in operation checking therefore their service life may be short The battery alarm icon lights up when the battery voltage is low Replace the batteries when the battery alarm ico
18. he reading locking function is deactivated and disappears If a measurement result is out of the specified measurement range the displayed measured value blinks When using the reading locking function deactivate the function before starting every measurement 7 Special Setting Mode The special setting mode enables the meter setting and special operations To enter the special setting mode press and hold the MEAS switch for over 3 seconds in the measurement mode All the LCD items appear then the meter enters the special setting mode Tip To exit the special setting mode with no setting change press the ON OFF switch to turn OFF and ON again E Bn HA All items II nn II LI mVg L appear LINI SL foom Pressing the CAL switch continuously Automatically switches the display in turn MEAS switch 7 1 Measurement unit setting page 18 m g L ppm Used to select measurement unit CAL switch c MEA 7 2 Temperature display mode page 19 Displays the ambient temperature measured using internal temperature sensor CAL switch CAL MEAS switch 7 3 Calibration point setting page 20 Used to select the calibration points CAL switch 7 4 Multiplying compensation setting page 21 XI Used to select the coefficient 0 01 to 9 90 for gt multiplying compensation The values after CAL swit
19. measurement One point calibration in low concentration for low concentration measurement Two point calibration for high accuracy measurement One point calibration in high concentration is set by default Refer to the instructions on page 20 for switching the calibration points The calibration point setting and calibration result are saved after the meter is turned OFF Tip Two point calibration is recommended especially if the concentrations of sample and standard solution differ by more than 10 fold ll Precautions for calibration If remains blinking and Err error display appears the calibration is failed CAL Check that the standard solution concentration is correct perform calibration again after Tr cleaning the sensor well If the calibration is failed using correct standard solution s the sensor may be deteriorated Replace the sensor with new one part No 3200459868 In two point calibration confirm that the calibration operations are completed respectively for low and high concentrations The calibration operation for high concentration can not start until the calibration for low concentration is completed and the whole calibra tion sequence is not completed until the calibration for high concentra tion 5 2 One point calibration in high concentration Set One point calibration in high concentration refer to page 20 Open the light shi
20. mersion for a large amount sample Scooping for sampling a part of a sample Sampling sheet for a sample containing tiny particles Although this product is waterproof avoid immersing it completely If the product is accidentally dropped into water take it out of water and wipe off the moisture on it B Drop 1 Open the light shield cover and put some drops of sample on the flat sensor to cover the entire flat sensor 2 Close the light shield cover Light shield cover Tip Try to use the provided sampling sheet B for a minute sample Using this sheet the entire flat sensor can be covered with only 50 uL to 100 IL sample Note that a reaction between a sample and the sampling sheet B may affect the measured value Handle the sampling sheet B with tweezers to minimize possible contamination Make sure to close the light shield cover during measurement to minimize possible sample evaporation ll Immersion 1 Open the sliding cap on the light shield cover 2 Immerse the sensor into the sample and stir gently 2 or 3 times Sliding cap ll Scooping Open the sliding cap on the light shield cover Immerse the sensor into the sample and stir gently 2 or 3 times and then scoop up some of the sample with the sensor Place the meter flat and confirm that the sample covers the entire flat sensor Close the light shield cover A Nu Sliding cap Hi Sampling sheet If tiny particle
21. n lights up The meter power may not be turned ON OFF when the battery voltage is low Replace the 2 batteries at the same time Others Wash off any calibration fluid that comes into contact with hands or other exposed skin If fluid gets in eyes rinse them immediately and See a doctor Do not drink a sample after measurement The response membrane of the flat sensor is made of PVC and the plasticizer in PVC may seep into the sample used for measurement 4 Basic Handling 4 1 Inserting removing batteries Turn OFF the meter before inserting removing batteries Always replace both batteries at once Do not use old and new batteries together IM Inserting the batteries 1 Slide both batteries into the battery case as shown Be sure to use two CR2032 batteries and put them with the plus sides upwards lll Removing the batteries 1 Usea ball point pen or other tool to pry the batteries out from the clips as shown 4 2 Attaching detaching the sensor Turn OFF the meter before attaching detaching the sensor If the meter is turned ON with the sensor detached the battery alarm may light up In this case turn OFF the meter and attach the sensor and then turn ON the meter again ll Attaching the sensor 1 Confirm that the waterproofing gasket is clean and undamaged 2 Slide the sensor onto the meter so that catch A on the back of the meter fits into hole a on the sensor tongue as shown Wat
22. nds to change the setting Pressing the CAL switch continuously switches the display in turn ispl ppm display Press the CAL switch for 0 5 seconds IIZ L LII II oom kg 10a display Press the CAL switch for 0 5 seconds II LIII IL mg L displa pa Press the CAL switch for 0 5 seconds m g L IIZ L LIII IL 4 Press the MEAS switch to apply the setting The measurement mode is returned 7 2 Temperature display mode Displays the ambient temperature measured with the internal temperature sensor The measurement accuracy is unwarranted Use the value only as a guide 1 Press and hold the MEAS switch for over 3 seconds in the measurement mode to kg 10a enter the special setting mode m g L All items appear on the LCD and then the dis ppm play changes as shown right 2 Press the CAL switch until C appears XC 3 Press the MEAS switch for 0 5 seconds The ambient temperature measured using an DES internal temperature sensor is displayed pl 4 Press the MEAS switch to return the measurement mode 7 3 Calibration point setting Used to select the calibration points 1 Press and hold the MEAS switch for over 3 seconds in the measurement mode to enter the special setting mode UE All items appear on the LCD and then the dis ppm play changes as shown right 2 Press the CAL switch until appears e 3 Press the M
23. r on the LCD and then the dis play changes as shown right 2 Press the CAL switch until Lo ch appears 3 Press the MEAS switch for 0 5 seconds The current setting is displayed 4 Press the CAL switch for 0 5 seconds to increase the value Pressing the CAL switch continuously increases the value in turn Pressing the CAL switch with 1900 displayed returns the value to 39 150 ppm CAL II CAL switch I III mE Press the CAL switch for 0 5 seconds 160 ppm CAL rr CAL switch h Li kg 10a m g L ppm CAL L III II 39 AI Press the CAL switch for 0 5 seconds 1900 ppm I LILI CAL 1 5 Press the MEAS switch to apply the setting The measurement mode is returned 24 7 8 Initialization mode All settings and all calibration data are reset to the factory default values 1 7 9 Press and hold the MEAS switch for over 3 seconds in the measurement mode to enter the special setting mode All items appear on the LCD and then the dis play changes as shown right Press the CAL switch until Init appears Press the MEAS switch for 0 5 seconds appears Press the CAL switch for over 2 seconds All settings and all calibration data are reset to the factory default values When initialization is completed End and appear Press the ON OFF switch to turn OFF and
24. r to page 20 Open the light shield cover and put some drops Light shield of the low concentration standard solution on aver the flat sensor to cover the entire flat sensor Washing the sensor with the standard solution beforehand may provide more accurate calibration Close the light shield cover and press the CAL switch for over 2 seconds and blink and the calibration value is displayed gt After the calibration is completed and stop blinking and light steadily CAL After the calibration for low concentration II ri is completed open the light shield cover to remove the low concentration standard solution and wipe off moisture on the sensor Put some drops of the high concentration Light shield standard solution on the flat sensor to cover the entire flat sensor Washing the sensor with the standard solution beforehand may provide more accurate calibration Close the light shield cover and press the CAL switch for over 2 seconds and blink and the calibration value is displayed After the calibration is completed and stop blinking and light steadily cover b Clean the sensor with tap water and remove moisture Press the MEAS switch for 0 5 seconds to enter the measurement mode and prepare for measurement 6 Measurement 6 1 Sample setting The following 4 type sampling setting methods are available Drop for a small amount sample Im
25. rature alarm Blinks when the measuring environment temperature does icon not meet the specified operating temperature 5 C to 40 C 13 Stability icon Lights up when the measured value is stabilized Measured value 14 display Displays a measured set or status value A unit symbol lights up corresponding to the value displayed 15 Measurement unit the measured value display 14 For potassium ion display concentrations ppm mg L or kg 10a is selectable refer to page 18 The default setting is ppm 3 Handling Precautions Meter and sensor The sensor is a consumable part If it becomes damaged or its performance deteriorates replace it with a new one the sensor can not be repaired Do not swing the meter and sensor by holding a strap To ensure the waterproof performance confirm the followings when attaching the sensor The waterproofing gasket is clean and undamaged The waterproofing gasket is seated properly in the groove with no twisting or warping The meter and sensor are not deformed Neither the meter nor sensor is waterproof by itself The sensor must be securely mounted on the meter before use Do not drop the meter or apply excessive force to it SERO VA NE gs Do not leave the meter in areas of direct sunlight or high temperature humidity Do not clean the meter with organic solvents xa m Sp NO LEN 7 EXE Or
26. s are contained in a sample such as an extract from soil the particles influence measurement results Use the sampling sheet holder cover part No 3200459736 and sampling sheet B part No 3200053858 sold separately to counteract the influence 1 Replace the light shield cover with the sampling sheet holder cover 2 Puta piece of sampling sheet B on the flat sensor and close the sampling sheet holder cover 3 Put 4 or 5 drops of sample on the sampling sheet B Light shield cover Sampling sheet B The sampling sheet holder cover does not shield the sensor from light which affects the sensor When using the sampling sheet holder cover shield the flat sensor from light with an alternative 6 2 Measurement operations Without using the reading locking function 1 Confirm that the meter is in the measurement mode and set a sample on the sensor 2 Read the displayed value when appears 6 CA LI Ll jm I ll With using the reading locking function 1 Confirm that the meter is in the measurement mode and set a sample on the sensor 2 After C appears press the MEAS switch for 0 5 seconds The reading locking function is activated nn 8 blinks until the measured value is stabi lized ILI Lilo When the measured value is settled stops blinking and the displayed value is locked with and lighting steadily 3 Read the displayed value 4 Press the MEAS switch for 0 5 seconds T
27. the Directive 2006 66 EC for the object chemical This product should not be disposed of as unsorted household waste Your correct disposal of WEEE waste batteries and accumulators will contribute to reducing wasteful consumption of natural resources and protecting human health and the environment from potential negative effects caused by hazardous substance in products Contact your supplier for information on applicable disposal methods EX FCC Rules Any changes or modifications not expressly approved by the party responsible for compliance shall void the user s authority to operate the eguipment WARNING This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense Korea Certification 985001 OSS SSAJINM 0 JAE 2F8 amp Ba E IAA SSCS OH SENSAAN MSS USU CL ll Taiw
28. trong alkalis influence measurement results Measure within the range from 2 pH to 9 pH Also high level monovalent cations such as NH4 may cause measurement errors Refer to page 29 for details How can eliminate or reduce the mea surement interference Diluting the sample to a concentration within the measurable range can sometimes reduce measurement interference Are there any helpful tips or precautions to be aware for measurement Use the light shield cover to avoid direct sunlight during measurement because the sensor is affected by light If the light shield cover is unavailable for example when a sampling sheet holder cover is attached shield the flat sensor from light with an alternative When the sample amount is enough washing the sensor twice or so with the sample allows more accurate measurement Residue between the light shield cover and flat sensor pre vents accurate measurement Before measurement of the next sample clean the sensor with tap water and remove moisture Can measure high or low temperature samples This product can not measure a sample with a temperature outside the meter s operating temperature range 5 C to 40 C The difference between the sample temperature and ambient temperature increases the measurement error Perform mea surement after the sample reaches the ambient temperature 26 Question Answer prepare stand
29. urement shows approximately 1 x 107 1 higher result 29 HORIBA Ltd 2 Miyanohigashi Kisshoin Minami ku Kyoto 601 8510 Japan http www horiba com
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