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SX736 Portable pH/Conductivity/DO Meter

User Manual

APERA INSTRUMENTS (Europe) GmbH

aperainst.de

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Summary of Contents for SX736

Page 1: ... 1 SX736 Portable pH Conductivity DO Meter User Manual APERA INSTRUMENTS Europe GmbH aperainst de ...

Page 2: ...asurement 16 7 1 Preparation 16 7 2 Conductivity Calibration 16 7 3 Sample Test 17 7 4 Conductivity Electrode s Maintenance 17 7 5 Notes about Conductivity Calibration 17 7 6 Parameter Setting 18 7 7 Temperature compensation coefficient 20 7 8 Notes about conductivity parameter setting 21 8 DO Measurement 21 8 1 Preparation before use 21 8 2 DO Calibration Saturated Oxygen 22 8 3 DO Measurement 22...

Page 3: ...icroprocessor chip with the intelligent functions of auto calibration auto temperature compensation auto salinity compensation manual baromatric pressure compensation data storage function settings auto power off and low voltage display etc 1 2 Adopts digital filter technology to intelligently improve meter s response speed and accuracy The smiley face icon will appear when the reading is stable 1...

Page 4: ... Conductivity Measurement range Conductivity 0 00 to 19 99 μS cm 20 0 to 199 9 μS cm 200 to 1999 μS cm 2 00 to 19 99 mS cm 20 0 to 199 9 mS cm TDS 0 to 100 g L Salinity 0 to 100 ppt Resistivity 0 to 100 MΩ cm Resolution 0 01 0 1 1μS cm 0 01 0 1 mS cm Accuracy Meter 1 0 F S Overall 1 5 F S Temp compensation range 0 to 50 C automatic Electrode constant 0 1 1 10 cm 1 Reference temperature 25 C 20 C a...

Page 5: ...r measurement value measurement unit and temperature Power Supply Two AA alkaline batteries 1 5V x2 Dimensions and weight Meter 65 120 31 mm 180 g Complete Kit 255 x 210x 50 mm 1760 g Quality and safety certification CE ISO 9001 2015 2 6 Working Condition Working temperature 5 to 35 C Working humidity 85 IP rating IP57 water resistant 3 About the Meter 3 1 Screen Display Parameter icon Measurement...

Page 6: ...ment mode short press this key to enter the parameter setting mode P1 P2 P3 3 2 4 Backlight and confirmation key a In measurement mode short press to turn on or off the backlight b In calibration mode or the parameter setting press this key to make confirmation and return to measurement mode c When in mode hold this key to change pH resolution 0 01 0 1 pH in turn Release key when you confirm the s...

Page 7: ...a recalling mode RM and serial number in the upper right corner short press to return to measurement mode 3 3 3 Delete data In data recalling mode hold for 5 seconds CLr will show up for 2 seconds meaning that all the saved data have been eliminated Then the meter will return to measurement mode 4 What s in the kit SX736 pH ORP Conductivity DO meter 1 201T S plastic pH ATC three in one combination...

Page 8: ... 8 5 Preparation What you need in addition to what s in the kit Pure water RO distilled or deionized water for rinsing off the electrode ...

Page 9: ...KCL storage bottle and put it aside do not dump or spill the KCL solution Rinse the electrode with distilled or deionized water Shake off excess water or blot dry with clean tissue or kimwipe Stir the electrode for a few seconds after it s dipped into the test solution and then hold it still Wait for the reading to get fully stabilized appears and stays and then take the measurement When the test ...

Page 10: ...e with the meter should be replaced within 3 months after opening The new buffer solutions should be made by a legitimate lab supply manufacturer Avoid sunlight and air contact when the buffers are not being used and store at room temperature 2 This meter can adopt random 1 2 or 3 point automatic calibration During calibration to return to measurement mode short press When the measurement accuracy...

Page 11: ...tays Then save the measurement by pressing According to the pH isothermal measurement principle the closer the test sample s temperature is to the calibration solution s the higher the accuracy of the measurement This principle is recommended to follow for the best result For example if you must test at 150 F we recommend warming up the calibration solutions to the same temperature before performi...

Page 12: ...abSen851 S LabSen 851 H Wastewater or emulsion LabSen 333 An 8 pin to BNC convertor AI7103 is required to connect LabSen pH electrode to this meter Visit aperainst de or contact us at 49 202 51988998 for more details 6 6 Parameter Setting Table 4 1 Prompt Mark Parameter Setting Items Code Parameters P1 pH buffer solution series selection USA U S A series NIS NIST series CH China series P2 Pure wat...

Page 13: ...sation setting or c Press to enter next parameter setting or press to confirm and return to measurement mode d The factory default setting is OFF Note will appear in the upper right corner of the LCD if pure water temperature compensation function is set 6 6 3 Ammonia added pure water pH temperature compensation setting P3 a Short press in mode P2 to enter mode P3 see picture 4 4 b Press or to cho...

Page 14: ...cture 4 7 b Press or to choose the time 0min 10min or 20min The auto power off function will be closed if choosing 0 min c Press to enter next parameter setting or press to confirm and return to measurement mode d The factory default setting for P6 is 10 min 6 6 7 Restore to factory default setting P7 a Short press in P6 to enter P7 see picture 4 8 b Press or to choose meaning that the parameters ...

Page 15: ...agnose information which can help you understand what may go wrong with the meter or electrode 6 8 1 The stable icon 2 00 pH or 19 99 pH this icon appears when the pH value exceeds the measurement range This icon will also show up when the electrode is not well connected with the meter or when the electrode is not insertd into solution This is a normal phenomenon 6 8 2 Electrode offset out of rang...

Page 16: ...ith alcohol prep pads and blow dry 7 Conductivity Measurement 7 1 Preparation Press to power on connect the 2301T S conductivity electrode See Section 5 for connection tutorial the meter will automatically change to conductivity measurement mode 7 2 Conductivity Calibration 8 2 1 Short press to enter calibration mode cal flickers on LCD indicating the meter enters calibration mode Rinse off the el...

Page 17: ...use store the conductivity electrode in pure water 2 The sensor of 2301T S conductivity electrode is coated with platinum black to minimize electrode polarization and expand measuring range The platinum black coating adopted our special processing technology which improves the electrode performance and the firmness of the coating If the platinum black electrode is stained gently clean the electrod...

Page 18: ...e value of temperature and then press to confirm 7 6 Parameter Setting Conductivity measurement parameter setting Table Table 6 3 Prompt Mark Parameter Setting Items Code Parameter P1 Standard solution series selection USA 84μS cm 1413μS cm 12 88mS cm 111 9mS cm CH 146 6μS cm 1408μS cm 12 85mS cm 111 3mS cm P2 Electrode constant selection 0 1 1 10 P3 Reference temperature selection 25 C 20 C 18 C ...

Page 19: ...e next parameter setting or press to return to measurement mode d The factory default setting of P3 is 25 C 7 6 4 Temperature compensation coefficient setting P4 a In P3 short press to enter P4 as shown in picture 6 6 b Press or to change the number the changing range of data is from 0 00 to 9 99 long press or to change quickly Attention When the number set as 0 00 means there is no temperature co...

Page 20: ...fer to Section 6 6 6 7 6 9 Restore to producer setting P9 In P8 short press and enter P9 for details please refer to Section 6 6 7 7 7 Temperature compensation coefficient The temperature compensation coefficient of the meter setting is 2 0 C However the conductivity temperature coefficient is different from solutions and concentration Please refer to Table 11 and the data collected during testing...

Page 21: ... bottom lid of electrode calibration sleeve inspect whether the sponge inside is moist If it is dried out add in several drops of distilled water to the sponge to maintain the satured air inside the calibration sleeve Do NOT add too much water so it won t be dripping 8 1 2 Electrode polarization After each power on the DO electrode must be polarized for 5 minutes before measurement or calibration ...

Page 22: ...ading is fully stabilized 8 3 DO Measurement 8 3 1 Measurement DO in flowing water Power on the meter Place the DO electrode into the flowing water The water surface level should be higher than the location of the temperature electrode The angle for the electrode and water surface should be 45 to 75 Hold the electrode in the flowing water and wait for a stable reading then press to record the meas...

Page 23: ...lectrode temperature and water temperature have larger difference the reading time must be greater than 3 minutes Otherwise there could be some large errors c Salinity and barometric pressure also affect DO measurement The meter has automatic salinity compensation and manual barometric pressure compensation For details refer to Section 8 9 3 d When the meter is performing abnormally please set the...

Page 24: ...d new inner solution DO502 into a new membrane cap DO503 slowly and do not let any air bubbles appear If you found any air bubbles in the cap carefully flick on the membrane cap to eliminate them e Place the membrane cap on the table and put in the electrode vertically slowly twist in and then screw on the cap tightly The excess inner solution will be squeezed out Please wipe it off with tissue an...

Page 25: ...eter has automatic salinity compensation and the salinity electrode is pre calibrated before leaving the factory In general there is no need to perform salinity calibration Salinity calibration is only needed when replacing a new electrode For the procedure of salinity calibration please refer to 8 9 3 in P2 For the salinity electrode installed in DO electrode see picture 4 1 its surface is plated...

Page 26: ...ess to choose resolution 0 01 0 1 c Press to enter the next parameter setting or press to return to the measurement mode 8 9 3 Salinity calibration setting P2 a In P1 short press to enter P2 see picture 4 3 b Immerse the DO electrode into 12 88mS cm calibration solution sold separately solution level should exceed salinity electrode let it stand still after stirring then press when the value is st...

Page 27: ...eter setting or short press to return to measurement mode 8 9 6 Backlight display time setting P5 a Short press in P4 to enter P5 see picture 4 6 b Short press or to choose the auto off time of backlight 0min 1min 3min or 6min The backlight display function will be closed if choosing 0 min c Short press to enter next parameter setting or short press to return to measurement mode d The default sett...

Page 28: ...e GmbH any malfunctioned or damaged product attributable to responsibility of APERA INSTRUMENTS Europe GmbH for a period of THREE YEARS SIX MONTHS for the electrode from the delivery This limited warranty does not cover any damages due to Transportation storage improper use failure to follow the product instructions or to perform any preventive maintenance modifications combination or use with any...

Page 29: ...4 16 9 86 32 7 30 1 14 22 17 9 66 33 7 18 2 13 82 18 9 46 34 7 07 3 13 44 19 9 27 35 6 95 4 13 09 20 9 08 36 6 84 5 12 74 21 8 90 37 6 73 6 12 42 22 8 73 38 6 63 7 12 11 23 8 57 39 6 53 8 11 81 24 8 41 40 6 43 9 11 53 25 8 25 41 6 34 10 11 26 26 8 11 42 6 25 11 11 01 27 7 96 43 6 17 12 10 77 28 7 82 44 6 09 13 10 53 29 7 69 45 6 01 14 10 30 30 7 56 15 10 08 31 7 43 ...

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Page 31: ... 94 2000 610 94 28 708 7 68 9500 2896 71 64 538 5 83 2500 762 92 54 695 7 54 10000 3049 70 17 527 5 71 3000 915 90 95 683 7 41 10500 3201 68 84 517 5 61 3500 1067 89 35 671 7 28 11000 3354 67 38 506 5 49 4000 1220 87 75 659 7 15 12000 3659 66 58 500 5 42 4500 1372 86 15 647 7 02 13000 3963 65 78 494 5 36 5000 1524 84 56 635 6 89 14000 4268 64 98 488 5 29 5500 1677 83 09 624 6 77 15000 4573 64 18 4...

Page 32: ... 32 APERA INSTRUMENTS Europe GmbH Address Wilhelm Muthmann Str 18 42329 Wuppertal Germany Tel 49 202 51988998 Email info aperainst de Website aperainst de ...

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