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WATERPROOF

MULTIFUNCTION

METER

CX-461

USER‘S MANUAL

Содержание CX-461

Страница 1: ...WATERPROOF MULTIFUNCTION METER CX 461 USER S MANUAL...

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Страница 3: ...USER S MANUAL WATERPROOF MULTIFUNCTION METER CX 461 Read the instructions carefully before use...

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Страница 5: ...2 1 Measurement with automatic temperature compensation 27 12 2 Measurement with manual temperature compensation 28 13 Notices about the temperature compensation and interpretation of the pH measureme...

Страница 6: ...tion 62 24 2 Measurement with manual temperature compensation 63 25 Measurement of oxygen content in air 64 V ATMOSPHERIC PRESSURE MEASUREMENT 65 26 Atmospheric pressure measurement 67 VI REDOX POTENT...

Страница 7: ...1 I INTRODUCTION...

Страница 8: ...2 User s manual for CX 461 multifunction meter v1 40...

Страница 9: ...e a kind of electrode suitable for solutions which are going to be measured e g sewage liquids with deposits meat cheese etc Therefore if you observe improper operation of the device please take contr...

Страница 10: ...ction of temperature influence on the value of pH buffer solutions NIST norm information about the pH electrode condition storing of the calibration date and parameters of three electrodes sensors in...

Страница 11: ...etc The meter is adjusted to work with all types of combination pH electrodes and conductivity cells with wide K constant range equipped with the BNC 50 connector It is possible to connect the meter w...

Страница 12: ...ls of the units are displayed next to the readout Pic 1 The automatic temperature compensation is signalised by the symbol the manual compensation by the symbol next to the temperature readout Number...

Страница 13: ...C 50 input for connecting the combination pH electrode or the redox electrode t the Chinch input to connect the temperature probe O2 the BNC 50 input for connecting the dissolved oxygen sensor PC the...

Страница 14: ...nds exclusively to a long press about 2 sec It prevents from accidental erase of the electrode sensor cell calibration data Change parameters or their values by pressing the active window The followin...

Страница 15: ...g In case of the user s data loss i e the pH electrode characteristic the following information will appear Pressing the button accepts and records in the memory standard pH electrode characteristic a...

Страница 16: ...the previously set configuration Pic 3A A B Pic 3 After pressing the window with a chosen function a table will display with all the measurement finctions Pic 3B After selecting the chosen function t...

Страница 17: ...essing the button The pH electrode is isolated from the conductivity cell therefore during pH and conductivity measurements both electrode and cell may be immersed in the same solution simultaneously...

Страница 18: ...12 User s manual for CX 461 multifunction meter v1 40...

Страница 19: ...13 II pH MEASUREMENT...

Страница 20: ...14 User s manual for CX 461 multifunction meter v1 40...

Страница 21: ...by gentle touching the glass with a tissue paper after work the electrode should be stored in the saturated KCl solution The protecting rings should be put on the junction and upper hole in case of lo...

Страница 22: ...ing the resolution electrode number checking the solution type and after pressing the button Pic 4C calibration points and validity time these parameters are entered in the calibration mode only A B C...

Страница 23: ...tored under E1 E2 or E3 number Pic 5 The number s colour informs about the electrode s condition white electrode efficient calibration valid yellow electrode efficiency loss detected during the last c...

Страница 24: ...e displayed Pic 4C the electrode condition calibration points validity time and date of the last calibration Markers next to the calibration points windows inform that the last calibration was perform...

Страница 25: ...e electrodes separately If this option is active the calibration should be performed when the applied electrode number E1 E2 or E3 turns yellow For obtaining optimal calibration results the pH values...

Страница 26: ...trode characteristic is approximated linearly between the calibration points Entering the calibration mode erases the electrode s characteristic stored under the chosen number There is no possibility...

Страница 27: ...ged enter the calibration mode select the pH mesurement on the measurement screen press and hold the button until the background turns red Pic 6A The previous characteristic is erased press the button...

Страница 28: ...Manufacturer s value Range 1 2 000 0 800 2 100 2 4 000 3 900 4 100 3 7 000 6 800 7 100 4 9 000 8 900 10 200 5 12 000 11 800 14 000 The meter takes into account only the values detected during calibra...

Страница 29: ...press the SOLUTION window choose BUFFER check and if necessary enter the calibration points values according to the point 10 2 put the pH electrode and temperature probe into the solution do not touch...

Страница 30: ...rection of the manufacturer s settings description below After putting the temperature probe into the pH standard its temperature is measured and the pH value corresponding to this temperature is sugg...

Страница 31: ...ration are calculated the other values recorded earlier do not influence the readout The temperature range taken into consideration while introducing correction is 0 60 oC and should not be exceeded d...

Страница 32: ...he electrode number on the measurement screen 10 4 1 Calibration with manual temperature compensation In case of the temperature probe breakdown calibration with manual temperature compensation may be...

Страница 33: ...y with pH and calculates its influence to the pH reading In case of measurement with automatic temperature compensation turn the meter on by pressing the button connect the temperature probe and the c...

Страница 34: ...d is compensated Manual compensation may be used in stable conditions i e during laboratory pH measurements especially with use of thermostat or in case of the temperature probe breakage In case of me...

Страница 35: ...rather slight however in certain solutions e g pure water they tend to be significant In case of measurements in solutions which tend to be greatly affected by the temperature change the results shou...

Страница 36: ...measurement readings stability Slow drift of the reading its unstability or prolonged time of stabilisation in most cases result from clogged junction broken electrode or contaminated membrane It hap...

Страница 37: ...31 III CONDUCTIVITY AND SALINITY MEASUREMENT...

Страница 38: ...32 User s manual for CX 461 multifunction meter v1 40...

Страница 39: ...ntration of salt dissolved in water with use of TDS coefficient point 19 3 The electrodes surface and the distance between them have a crucial influence on the cell s K constant This constant affects...

Страница 40: ...nd measurements it is necessary to perform all activities described in the chapter 7 Additionally according to the chapter below it is necessary to choose the unit in which the calibration and measure...

Страница 41: ...ion necessary 15 3 Choosing the unit The reading may be displayed in units of conductivity or salinity Salinity can be counted to NaCl KCl or TDS content The result can be displayed in of weight conce...

Страница 42: ...alised with yellow cell number To enter the calibration validity time press the VALIDITY window numerical keyboard will appear to enter and confirm the number of days 15 6 Entering the coefficient The...

Страница 43: ...ed with use of the entered reference temperature Notice changing the unit in the temperature measurement function will automatically convert the reference temperature into this unit 15 8 Entering the...

Страница 44: ...ls Depending on the expected measuring range the relevant cell may be chosen with use of the chart below Pic 11 The dependence between the measuring range and K constant of applied conductivity cells...

Страница 45: ...using a special liquid for cleaning the cells This is a mixture of equal parts of isopropyl alcohol ethyl ether and hydrocholic acid diluted with water in 1 1 proportion Breaking of the measuring cell...

Страница 46: ...urately prepared standard solution with accurately adjusted temperature 250 C Otherwise calibration will be burdened with error When using three cells it is possible to store their characteristics und...

Страница 47: ...the measured solution It is required to use sample solutions of high quality To obtain accurate results of calibration comply to the following principles 1 The temperature of the standard solution sh...

Страница 48: ...tomatically change the unit to S cm Pic 12 A Adopted K constant is equal 1 000cm 1 press the button the conductivity measurement screen will display Pic 12 B press the button the screen with a previou...

Страница 49: ...le solution and does not include any air bubbles and the electrode s surface is evenly moistened Around the calibration point displays a frame which informs about recognising the standard by the meter...

Страница 50: ...olution and hold it at least 1cm away from the bottom and walls of the vessel Make sure that the measuring cell is filled up with the sample solution and does not include any air bubbles and the elect...

Страница 51: ...ter on with choose the conductivity measurement mode section 15 3 if the conductivity cell is not calibrated calibrate it chapter 17 immerse the conductivity cell and the temperature probe in the solu...

Страница 52: ...the conductivity cell at least 1 cm away from the bottom and walls of the vessel Make sure that the measuring cell is filled up with the sample solution and does not include any air bubbles and the el...

Страница 53: ...ivity cell is not calibrated calibrate it chapter 17 check or change the coefficient and the reference temperature immerse the conductivity cell and the temperature probe in the solution hold the cond...

Страница 54: ...coefficient and the result of salinity is received in g l e g if the conductivity value is 2 mS cm the salinity is 1g l In practice the dependence between conductivity and salinity isn t linear and th...

Страница 55: ...sample drying it to constant weight in temperature 103 1050 C weighting and counting in volume ratio mg dm3 The received weight is lower than total dry mass in water because apart from the dissolved...

Страница 56: ...e WTDS TDS coefficient TDS Total Dissolved Solids in g l conductivity of the sample in mS cm Caution the TDS value should be counted to volume of sample equal to 1l 2 If the readout is to be displayed...

Страница 57: ...icient for KCl and NaCl depending on the temperature and concentration of the measured liquid Table 5 wsp czynnik temperaturowy roztw r KCl temp 0 C 0 01M 0 1M 1 0M Nasycony NaCl 5 2 68 2 68 2 39 2 77...

Страница 58: ...e coefficient using the formula GTR GTX GTR TR TX x 100 0 C where TR reference temperature in 0 C TX changed temperature in 0 C GTR conductivity measured in ref Temperature TR GTX conductivity measure...

Страница 59: ...53 IV OXYGEN CONCENTRATION MEASUREMENT...

Страница 60: ...54 User s manual for CX 461 multifunction meter v1 40...

Страница 61: ...the result of neglecting basic sensor maintenance activities by the user It is worth remembering that during measurement the sensor absorbs oxygen from the environment of the membrane The sensor s ma...

Страница 62: ...sembled Depending on thickness of the membrane awaiting time for a stable result is about 1 1 5 min Accuracy of the measurement is connected with the temperature of calibration and measurement The gre...

Страница 63: ...displayed with low or high resolution By pressing the RESOLUTION window choose 1 or 0 1mg l measurement resolution 0 1 or 0 01 mg l measurement resolution 22 2 Sensor number If the meter stores more t...

Страница 64: ...stores the calibration validity time for each of the three sensors separately Termination of this time is signalised with yellow sensor number To set the calibration validity time press the VALIDITY...

Страница 65: ...nt The currently measured value will be entered into the SALINITY window automatically 22 7 Automatic compensation of the atmospheric pressure influence The concentration of oxygen dissolved in water...

Страница 66: ...r should be replaced according to the manufacturer s instruction This situation usually takes place if the membrane is strongly polluted or ruptured sometimes almost invisibly After replacing the memb...

Страница 67: ...ut recording the calibration value at the same time the measurement value will be corrected to 0 Pic 20 B take the sensor out rinse it accurately with distilled water and put into the 100 oxygen satur...

Страница 68: ...acteristic features of the sensor not the device For the applied sensor this error is about 3 at a 50 C temperature difference and increases to 5 at a 100 C temperature difference If higher accuracy i...

Страница 69: ...e section 22 3 for accurate measurement of oxygen concentration in mg l enter the salinity value section 22 6 put the DO sensor to the measured solution measure the solution temperature with a thermom...

Страница 70: ...re In order to make measurement connect the oxygen sensor to the O2 connector pic 2 leave the oxygen sensor in the air switch the meter on with the button choose the oxygen concentration measurement a...

Страница 71: ...65 V ATMOSPHERIC PRESSURE MEASUREMENT...

Страница 72: ...66 User s manual for CX 461 multifunction meter v1 40...

Страница 73: ...e measurement To read its value turn the meter on by pressing the button choose the atmospheric pressure measurement function on the measurement screen according to the point 31 1 return to the measur...

Страница 74: ...68 User s manual for CX 461 multifunction meter v1 40...

Страница 75: ...69 VI REDOX POTENTIAL MV AND TEMPERATURE MEASUREMENT...

Страница 76: ...70 User s manual for CX 461 multifunction meter v1 40...

Страница 77: ...ffset for the relative measurement A B C Pic 24 After setting the parameters return to the measurement screen by pressing the button If the relative measurement has been chosen next to the redox value...

Страница 78: ...ve measurement off 27 3 Reference voltage After choosing the relative measurement the REF VOLTAGE window appears to enter the reference voltage value To enter press the REF VOLTAGE window the numerica...

Страница 79: ...itration To make measurement turn the meter on by pressing the button choose the redox potential measurement to be displayed on the measuring screen according to the point 31 1 enter the measurement p...

Страница 80: ...nd next the button Pic 26B The screen enables choosing resolution probe group unit and entering the manual temperature compensation value A B Pic 26 After setting the parameters return to the measurem...

Страница 81: ...d confirm with the button The meter is calibrated and ready for the measurement To adjust the meter for cooperation with Pt 1000B standard sensor into the SENSOR GROUP window insert the nn00 number wh...

Страница 82: ...e meter cooperates with Pt 1000 platinum resistor sensor and the final accuracy of the temperature measurement is dependent on the sensor s class Pic 27 NOTICE break in the temperature probe s circuit...

Страница 83: ...77 VII OPTIONS...

Страница 84: ...78 User s manual for CX 461 multifunction meter v1 40...

Страница 85: ...acturer s address 31 1 Functions This tab enables choosing the measurement functions to be displayed on the measurement screen After entering this screen the recently chosen configuration is displayed...

Страница 86: ...display s brightness ECONO MODE the time of non use the last press of any button until the meter switches to the economical mode reducing the brightness to the minimum AUTO OFF the time of non use un...

Страница 87: ...he automatic switch off mode is active only while working with the rechargeable batteries The function is deactivated for calibration collecting measurement series and work with the power adapter Ente...

Страница 88: ...User s manual for CX 461 multifunction meter v1 40 31 4 Info The INFO tab contains the company address and the software version number Pic 30 Pic 30 Return to the measurement mode by pressing the but...

Страница 89: ...en enables setting the following parameters NUMBER OF BANKS number of banks parts into which the readouts are to be divided BANK the number of bank into which the sampleas shall be collected or to be...

Страница 90: ...the value and confirm with the button 32 1 1 Number of banks All the content of the meter s memory may be divided into parts banks to facilitate viewing or groupping the readings Changing the number o...

Страница 91: ...of the measurement screen If the chosen bank already contains any readouts the meter asks whether they should be deleted or the new readouts placed after the earlier recorded ones Every press of the...

Страница 92: ...ed ones The buttons at the screen bottom will be replaced with the button and the meter will start collecting measurement series At the top of the screen below the clock and date displays the number o...

Страница 93: ...ons screen Choose the number of bank that is to be viewed and press the button A screen with the readouts collected in the chosen bank will display Pic 34 change the displayed sample number with the b...

Страница 94: ...lays continuously the charging process is finished The meter may work while being charged In order to replace the batteries it is necessary to undo two screws in the lower wall of the meter pull out t...

Страница 95: ...ry to follow the instructions appearing during the installation progress After connecting turn on the meter and the PC and launch the transmission program From the DEVICES CONFIGURATION menu choose CO...

Страница 96: ...ALIBRATION automatic 1 5 point THE RANGE OF RECOGNITION AND ENTERING THE pH BUFFER SOLUTIONS Calibration point Range 1 0 800 2 100 2 3 900 4 100 3 6 800 7 100 4 8 900 10 200 5 11 800 14 000 AUTOMATIC...

Страница 97: ...Compenstion range 5 0 70 0 0 C K constant range 0 010 20 000 cm 1 coefficient range 0 00 10 00 0 C TDS coefficient range 0 20 1 00 Measurement with conversion to KCl 0 200 g l Measurement with convers...

Страница 98: ...the type of Pt 1000 probe Temperature probe Pt 1000 platinum resistor The probe s accuracy in range 0 100 0 C for Pt1000B resistor 0 8 0 C for Pt10001 3B resistor 0 27 0 C OTHER MEMORY CAPACITY 2000...

Страница 99: ...e ordered 1 Combination pH electrde glass membrane 2 Conductivity cell 3 Dissolved oxygen sensor 4 4XX PC cable 5 RS 232 USB converter 6 Program for data collection and transmission on CD 7 Adapter fo...

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Страница 101: ...apter mechanical damages and damages caused by repairs made by unauthorised persons The pH electrode conductivity cell oxygen sensor have the separate warranty of the manufacturer NOTICE Before sendin...

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Страница 106: ...Sp j 41 814 Zabrze Grzybowice ul Witosa 10 tel 48 32 2738106 fax 48 32 2738114 www elmetron com pl e mail info elmetron com pl...

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