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HI 3512 - Hanna Instruments

1. 8427 pH and ORP electrode simulator with 1 m 3 3 coaxial cable ending in female BNC connectors 931001 pH and ORP electrode simulator with LCD and 1 m 3 3 coaxial cable ending in female BNC connectors 76404 Electrode Holder EC CALIBRATION SOLUTIONS 70033 84 uS cm 20 ml sachet 25 pcs 70031 1413 uS cm 20 ml sachet 25 pcs 70039 5000 uS cm 20 ml sachet 25 pcs 70030 12880 uS cm 20 ml sachet 25 pcs HI 6033 84 uS cm 500 ml bottle HI 6031 1413 wS cm 500 ml bottle HI7039L 5000 uS cm 500 ml bottle HI7030L 12880 uS cm 500 ml bottle HI7034L 80000 uS cm 500 ml bottle 70350 11800 uS cm 500 ml bottle HI7037L 10096 NaCl 500 ml bottle 02 RECOMMENDATIONS FOR USERS Before using these products make sure they are entirely suitable for the environment in which they are used Operation of these instruments in residential areas could cause unaccept able interferences to radio and TV equipment requiring the operator to follow all necessary steps to correct interferences The glass bulb at the end of the pH electrode is sensitive to electrostatic discharges Avoid touching this glass bulb at all times During operation ESD wrist straps should be worn to avoid possible damage to the electrode by electrostatic discharges Any variation introduced by the user to the supplied equipment may degrade the instruments EMC performance To avoid electrical shock do not u
2. The instrument will automatically skip the buffers within 0 2 pH window around one of the calibrated buffers e Pour small quantities of selected buffer solutions into clean beakers For accurate calibration use two beakers for each buffer solution the first one for rinsing the electrode and the second one for calibration e Remove the protective cap open the fill hole and rinse the electrode with some of the buffer solution to be used for the first calibration point FIVE POINT CALIBRATION Immerse the pH electrode and the temperature probe approximately 3 cm 17 2 into a buffer solution of your choice pH 1 68 4 01 6 86 7 01 9 18 10 01 12 45 or a custom buffer and stir the buffer gently The temperature probe should be close to the pH electrode Enter pH calibration The instrument will display the measured pH the LCD first expected buffer and the temperature reading ChiCalib pl pH 2 4m 25 17 Buffer 1 r ipH If necessary press the ARROW keys to select a different buffer value The x tag will blink on the LCD until the reading is stable When the reading is stable and dose to the selected buffer Confirm funcion key is displayed Chi Calib pH ATC pH 3 6my 25 1 C Buffer 1 i D1pH Confirm Press Confirm to confirm first point The calibrated value and the second expected buffer value is then displayed on the LCD ChiCalib pH ATC H 51 C m gh Buffer z 3
3. en noz esr ve so en on eo va se o 7 es s vo qo en om re ww s n n rv v vm oo sef omr ae oe 4 08 6 84 NO 8 99 9 79 Una Sel INO co 4 Nl oo co UT gt T co ON N cM o co co DM RI amp co co co co co Un oO A A gt N c co co S co During calibration the instrument will display the pH buffer value at 25 C 2 RELATIVE mV CALIBRATION The relative mV value calibration may be used to perform a single point calibration with an ORP standard or remove the contribution of the reference electrode to display mV equivalent to a SHE Press CAL when the instrument is in Relative mV measurement mode The relative mV value and the temperature values are displayed Use the ARROW keys if you want to change the displayed relative mV value Ch1 Calib Rel mV 00 1 4 Abs my Press Zero function key if you want Rel mV reading to be zero Relative mV offset equals the mV reading When the reading is stable in mV range and the Relative mV offset is inside the offset window 2000 mV the Confirm function key is dis
4. point the will be displayed ISE Ammonia AutoEnd Pour small quantities of the buffer solutions into clean beakers If possible use plastic beakers to minimize any EMC interferences For accurate calibration and to minimize cross contamination use two beakers for each standard solution One for rinsing the electrode and one for calibration The 3512 permits a 5 point calibration in 6 standard solutions 0 1 1 10 100 1000 10000 It is advised to bracket expected ion concentration with your standards For fluoride electrode the 2 ppm standard is also available For accurate ISE measurements it is recommended to perform a multipoint calibration At least a two point calibration is required Remove the protective cap from the ISE electrode 29 FIVE POINT CALIBRATION Use part of this procedure for 2 3 or 4 point calibration Press ESC Immerse the ISE electrode approximately 2 cm into the less concentrated standard ol NT solution and stir gently Press CAL The primary LCD will displays the ion concentration in the selected unit or if not calibrated and first standard value Temp If necessary press the ARROW keys to select a different standard value The x tag will blink on the LCD until the reading is stable When the reading is stable and close to the selected standard the Confirm function key is displayed Temp Confirm Press Confirm to confirm calibr
5. sample temperature is different from the temperature at which the pH electrode was kept allow a few minutes to reach thermal equilibrium To use the instrument s Automatic Temperature Compensation feature submerse the temperature probe into the sample as close to the electrode as possible and wait for a few seconds If manual temperature compensation MTC is desired the temperature probe must be disconnected from the instrument The display will show the last measured temperature reading or the last set temperature with the MTC indication The indication and the symbol light up on the LCD to indicate that the instrument is in MIC mode and the ARROW keys can be used to enter the desired temperature value Note When in MTC mode the user can press and hold an ARROW key and the instrument will start incrementing decrementing the temperature value The instrument keeps measuring and the display is updated periodically ORP MEASUREMENTS To perform ORP measurements connect an ORP electrode see ACCESSORIES section to the instrument and turn it ON If necessary enter the mV mode by pressing RANGE until the display changes to mV Submerse the ORP electrode 3 cm 1 4 into the 3 em sample to be tested and wait a few seconds for the reading to stabilize StartLog Rel my RutoEnd Measurements are displayed with 0 1 mV resolution The or MTC message is turned off because mV readings are not
6. temperature compensated For accurate ORP measurements the surface of the electrode must be clean and smooth Pretreatment solutions are available to condition the electrode and improve ifs response time see ACCESSORIES section page 77 RELATIVE mV MEASUREMENTS To enter Relative mV mode press Rel mV function key while in mV measurement mode The relative mV reading will be displayed along with the Absolute mV value and the current temperature readings 0 0 mv 55 0 Abs mv 25 1 StartLog AutoEnd The relative mV reading is equal to the difference between the absolute mV input value and relative mV offset established in the relative mV calibration Note If using the pH or ISE electrode while in mV mode the instrument will measure the mV generated by the electrode ISE MEASUREMENTS To perform ion concentration measurements connect an ISE electrode and the corresponding reference if necessary to the corresponding BNC input and turn it ON Submerse the ISE electrode tip 3 cm 174 into the sample to be tested and wait for the reading to stabilize The ISE reading will be displayed along with the current temperature reading 4 10 ISE Calcium The ATC or MTC message is turned off because ppm readings are not temperature compensated In order to take accurate ISE measurements make sure that the appropriate ISE electrode type and ISE unit were set in SETUP menu and the instrument was calibrated
7. 001 to 9 999 uS cm 10 00 to 99 99 uS cm Range 100 0 to 999 9 uS cm 1 000 to 9 999 mS cm 10 00 to 99 99 mS cm 100 0 to 999 9 mS cm 1000 mS cm EC autoranging 0 001 uS cm 0 01 uS cm 0 1 uS cm Resolution 0 001 mS cm 0 01 mS cm 0 1 mS cm 1 mS cm 1 of reading Accuracy 2 0 01 uS am or I digit whichever greater excluding probe error 1 0 to 99 9 ohms 100 to 999 ohms 1 00 to 9 99 Kohms Range 10 0 to 99 9 Kohms 100 to 999 Kohms 1 00 to 9 99 Mohms 10 0 to 100 0 Mohms autoranging Resistivity 01 ohm 1 ohm 0 01 Kohms Resolution 0 1 Kohms 1 Kohms 0 01 Mohms 0 1 Mohms 1 of reading Accuracy 10 ohms or 1 digit whichever greater excluding probe error 0 000 to 9 999 ppm 10 00 to 99 99 ppm Range 100 0 to 999 9 ppm 1 000 to 9 999 g L 10 00 to 99 99 g L TDS 100 0 to 400 0 g L autoranging 0 001 ppm 0 01 ppm 0 1 ppm 1 of reading Accuracy 30 05 ppm 1 digit whichever greater excluding probe error NaCl 0 0 to 400 0 1 of reading excluding probe error 20 0 to 120 0 C 0 2 C excluding probe error Automatic up to 2 points with 7 memorized standards EC Calibration 0 00 uS cm 84 0 uS cm 1 413 mS cm 5 00 12 88 mS cm 80 0 mS cm 111 8 mS cm 0 010 to 10 000 Max 1 point only NaCl Calibration with HI 7073 standard EC probe HI 76310 Automatic from sensor inside the probe Temperature source Manual entry NoTC MIC ATC Compensation
8. FOR pH SENSITIVE GLASS 71 ELECTRODE CONDITIONING 8 MAINTENANCE nnn 72 EC PROBE MAINTENANCE snnt 15 TROUBLESHOOTING GUIDE senten 16 ES EE tails 77 PRELIMINARY EXAMINATION Remove the instrument from the packing material and examine it caretully to make sure that no damage has occurred during shipping If there is any damage notify your Dealer or the nearest Hanna Customer Service Center Each instrument is supplied with HI1131B Glass body combination double junction pH electrode HI 76310 Four Ring Conductivity Probe with built in temperature 7662 stainless steel Temperature Probe with 1 m 3 3 Cable HI 70004 pH 4 01 Buffer Solution 20 mL sachet HI 70007 pH 7 01 Buffer Solution 20 mL sachet 700661 Cleaning solution 2x20 mL each HI 70715 Electrolyte Solution e 76404N Electrode Holder 12 Vdc Power Adaptor e Instruction Manual HI 3512 is supplied with 12 Vdc 230 Vac power adapter HI 3512 01 is supplied with 12 Vdc 115 Vac power adapter Note Save all packing material until you are sure that the instrument functions correctly All defective items must be returned in the Original packing with the accessories supplied GENERAL DESCRIPTION The HI 3512 instrument is state of the art professional bench meter with graphical LCD designed to prov
9. Note For REL mV ISE or Salinity range pressing CAL on the selected range will cause the meter to enter directly in calibration mode pH CALIBRATION It is recommended to calibrate the instrument frequently especially if high accuracy is required The pH range should be recalibrated e Whenever the pH electrode is replaced At least once a week e After testing aggressive chemicals e When calibration alarm time out is expired CAL DUE blinks if feature is enabled in SETUP f Out of cal range message appears on the LCD during pH measurement the measurement range is not covered by current calibration if this feature is enabled in SETUP PROCEDURE The 3512 offers a choice of 7 standard buffers 1 68 4 01 6 86 7 01 9 18 10 01 and 12 45 pH and up to 2 custom buffers The standard pH butters are temperature compensated during calibration The custom user entered buffers are not temperature compensated during calibration When a custom buffer is selected during calibration the Custom function key is displayed on the LCD Press Custom key in order to alter the value to the actual pH value at the temperature of measurement Use ARROW keys to change the value within 1 00 pH window and then press Accept Press ESC to leave custom buffers value unchanged Press Confirm For accurate pH measurements it is recommended to perform a multipoint calibration At least a two point calibration is required
10. StopLog function key in order to stop logging and close current lot 22 Notes At Power Off the current lot is automatically closed e Ifthe 600 records space or 100 lots are reached the AutoLog space is full message will be displayed e Enter View Log Data mode and delete lots in order to free space VIEW LOGGED DATA Press the Recall function key to retrieve the information stored while in measurement mode for the specific range If the Recall function key is not displayed press MENU key The Recall selection screen is displayed AutoLog Man Log Press the corresponding function key to view the records If Man Log is pressed the list of records is displayed 701 2009 0707 701 2009 0707 1 2 3 432 2009 0707 4 2 00 2008 0707 Delete Hore If no data were logged the instrument will display No Records message Use ARROW keys to scroll between the records from the list Press Delete All to enter Delete screen Press Delete to enter Delete records screen Press More to view more information of the focused record If More is pressed Record number 1 Use ARROW keys to scroll between complete log information 56 If Delete is pressed Delete Record TO 2009 07 07 T l 2009 0707 432 2009 0707 2 00 2008 0707 Confirm Use ARROW key to focus the record to be deleted and then press Confirm Press ESC to exit If Delete All is pressed the instrumet asks for confirm
11. on the simulator e When the reading is stable and close to the selected calibration point the Confirm tunction key is displayed e Press Confirm to confirm The second calibration point of 1800 mV will be displayed Set 1800 0 mV on the simulator e When the reading is stable and close to the selected calibration point the Confirm tunction key is displayed e Press Confirm to confirm The instrument will restart and the calibration will be memorized Notes If the reading is not close to the selected calibration point Wrong tag will blink Verify calibration condition or contact your vendor if you cannot calibrate e Press ESC in any moment of the calibration process The instrument will restart and no calibartion will be memorized 58 TEMPERATURE CALIBRATION for technical personnel only Press CAL key on the pH range or on the EC range The calibration screen is displayed Press Temp function key to enter the temperature calibration mode The temperature calibration is performed for the current channel only The calibration routine is the same for both channels so Ch calibration is presented next Chi Calibration Prepare a vessel containing ice and water and another one containing hot water at approximately 50 C or 122 F Place insulation material around the vessels to minimize temperature changes Use a calibrated thermometer with a resolution of 0 1 C as a reference thermometer Conne
12. table lists the specitic pH ORP ISE range parameters fem Description Default Calibribration Number of days after Disable 1 to 7 days Disable Timeout Calibration warning pH ISE is displayed First point Management of Replace or offset Replace mode pH point calibration Custom buffer Custom buffer Max 2 butters No pH setting pH Resolution SetpHresolution 0 1 0 01 0 01 display 0 001 View calibr Display calibration Enable or disabled Enable points pH points Display out of calibr Enable or disable Enable range warning ISE probe Type of ISE probe Custom or Standard 17 Fluoride ISE unit ppt g L ppm mg L ppb ug L ppm mg mL M mol L mmol L W V user lon Charge 2 none The following table lists the specific EG TDS NaCl Resistivity range parameters ftem Description Default Calibribration Number of days after Disable 1 to 7 days Disable Timeout Calibration warning EC Salinity is displayed Out cal Display warning ifthe Enable Disable Disable range check reading is too far from the EC range only calibration points Temperature No TC MIC ATC ATC compensation mode Rongeseled Fixone Automatic Fix one Automatic specific range resolution of EC resistivity or TDS range Cell constant Manual set of 0 010 to 10 000 1 000 the cell constant Temperature Set the coeficient 0 00 to 10 00 C 1 90 C coeficient for linear temperature compen
13. two point calibration The instrument will automatically recognize the standards and skip the standard used during calibration e Pour small quantities of selected standard solutions into clean beakers For accurate calibration use two beakers for each standard solution the first one for rinsing the electrode and the second one for calibration e Remove the protective cap and rinse the electrode with some of the standard solution to be used for the first calibration point TWO POINT CALIBRATION e tis better to perform the first point calibration as offset calibration e the probe repeatedly to remove any air bubbles that may be trapped inside the sleeve e For offset zero calibration just leave the dry probe in the air 33 Press CAL from EC range to enter calibration mode Leave the probe in the air and press EC The instrument will display the measured EC on the LCD first expected standard and the temperature reading 25 1 C Std 1 000095 If necessary press the ARROW keys to select a different standard value The x tag will blink on the LCD until the reading is stable When the reading is stable and close to the selected buffer Confirm functional key is displayed p ZAR 1 C SEd 1 00005 Confirm Press Confirm to confirm first point The calibrated value and the second expected standard value is then displayed on the LCD 25 1 C Std 2 Fod 00p5 After the first calibration p
14. up the display will show the Hanna logo for a few seconds followed by the Loading Log message then enters the measurement mode Instruments Loading Log pH MEASUREMENTS To take a pH measurement remove the electrode protective cap and simply submerse the electrode and the temperature probe 3 cm 174 into the sample to be tested If necessary press CHANNEL to select pH channel or and press RANGE until the display changes to the pH mode Enter SETUP menu to select the pH resolution 10 Allow for the electrode to adjust and reading to stabilize hourglass symbol turns off AutoEnd On the pH screen are displayed e pH reading with the selected resolution e Temperature reading in the selected unit C or F e Temperature compensation mode manual ATC automatic While in MTC mode the indicate that the temperature can be manually changed using ARROW keys e Electrode condition during the calibration day e The buffers used in last pH calibration if feature is enabled in SETUP Available function keys In order to take more accurate pH measurements make sure that the instrument is calibrated see page 19 for details It is recommended that the electrode is always kept wet and rinsed thoroughly with the sample to be measured before use The pH reading is directly affected by temperature For accurate pH measurements temperature must be taken into consideration If the
15. 0 mL bottle HI 5091 pH 9 18 Buffer Solution 500 mL bottle HI 5010 pH 10 01 Buffer Solution 500 mL bottle HI 5124 pH 12 45 Buffer Solution 500 mL bottle 80040 pH 4 01 Buffer Solution in FDA approved bottle 500 mL 80060 pH 6 86 Buffer Solution in FDA approved bottle 500 mL HI8007L pH7 01 Buffer Solution in FDA approved bottle 500 mL 8009L pH9 18 Buffer Solution in FDA approved bottle 500 mL 80100 pH 10 01 Buffer Solution in FDA approved bottle 500 mL ELECTRODE STORAGE SOLUTION 703001 Storage Solution 500 mL bottle 803001 Storage Solution in FDA approved bottle 500 ml ELECTRODE CLEANING SOLUTIONS 70000 Electrode Rinse Solution 20 mL sachet 25 pcs 70610 General Purpose Solution 500 mL bottle 70730 Protein Cleaning Solution 500 mL bottle 70741 Inorganic Cleaning Solution 500 mL bottle HI7077L Oil amp Fat Cleaning Solution 500 mL bottle 8061L General Purpose Solution in FDA approved bottle 500 80731 Protein Cleaning Solution in FDA approved bottle 500 mL 80770 0114 Fat Cleaning Solution in FDA approved bottle 500 mL ELECTRODE REFILL ELECTROLYTE SOLUTIONS HI 7071 3 5M KC Electrolyte for single junction electrodes HI 7072 TM KNO Electrolyte HI 7082 3 5M KCI Electrolyte for double junction electrodes HI 8071 3 5M KCI AgCl Electrolyte in FDA approved bottle 4x30 mL for single junction electrodes HI 8072 TM KNO Electrolyt
16. 250 C Buffer 14 Press Accept to accept new value or ESC to exit mode Note Custom buffer value can be adjusted within a 1 00 pH window around the set value WORKING WITH MILI pH BUFFERS HANNA millesimal pH buffers are 0 002 pH buffers formulated to correspond to nominal pH values 1 000 2 000 3 000 4 010 5 000 6 000 7 010 8 000 9 000 10 010 11 000 12 000 13 000 and 9 that fall between These buffers require the user to use the closest standard buffer and adjust it or to use custom buffers With these buffers it is possible to closely bracket the measurement range of interest and insure an accurate measurement The resolution of the meter must be set to 0 001 pH see SETUP on page 40 Eight buffers are stored in instrument for calibration If calibration is invoked using millesimal buffers the calibration buffer can be modified within 0 020 pH range in accordance with the label on the calibration buffer ChiCalib pH HTC 02 amv Buffer 1 27 0i0pi Change Press Change to enter buffer mode H 702 Buffer Accept Use ARROW keys to change the butfer value Press Accept to accept new value or ESC to exit adjusting mode CLEAR CALIBRATION 8030 Buffer 7 Change B1 Press Clear function key when displayed to dear previous calibrations 25 The instrument will display Calibration Cleared and the instrument return
17. 4 hours Date Format YYY OD Language Enalish Modify Press Modify Date Format I5 A YYYY HADD TAN Oo Use ARROW keys to select date format then press Accept Press ESC to leave without changing 43 Language Focus on the Language item Time Format 24 hours Date Format a ae On Language English Italiano Fortug Espa ol Use the desired function key to change the option Wait until new language is loaded If language load fails the instrument will try to reload current language If any language can t be loaded the instrument will work in sate mode In this mode all messages are displayed in English and HELP is not available Temperature unit Focus on the Temperature Unit item ut of Cal Range Warning ba Temperature Unit E L 5 9 Press the displayed function key order to change the temperature unit Beep On Focus on Beep On item SetupipH Og Date Format OCT IANS Oo Language Enalish Beep On O Instrument ID Enable Press the displayed function key to enable disable beep When enabled beep sounds as a short beep every time a key is pressed or when the calibration can be contirmed A long beep alert means that the pressed key is not active or a wrong condition is detected while in calibration 44 AutoEnd stability Focus on AutoEnd Stability item c5 Log interwal ns PH Resolution 0 01 AutoEnd Stability Medium Calibration Timeout Disabled Accura
18. 8082 for double junction electrodes Follow the Preparation Procedure on page 72 before taking measurements Note NEVER STORE THE ELECTRODE IN DISTILLED OR DEIONIZED WATER PERIODIC MAINTENANCE Inspect the electrode and the cable The cable used for connection to the instrument must be intact and there must be no points of broken insulation on the cable or cracks on the electrode stem or bulb Connectors must be perfectly clean and dry If any scratches or cracks are present replace the electrode Rinse off any salt deposits with water pH Probe Maintenance For refillable electrodes Refill the reference chamber with fresh electrolyte HI 7071 or HI 8071 for single junction or HI 7082 or HI 8082 for double junction electrodes Allow the electrode to stand upright for 1 hour 3 Follow the Storage Procedure above pH CLEANING PROCEDURE General Soak in Hanna HI 7061 or HI 8061 General Cleaning Solution for approximately hour Protein Soak in Hanna 7073 or HI 8073 Protein Cleaning Solution for 15 minutes e Inorganic Soak in Hanna HI 7074 Inorganic Cleaning Solution for 15 minutes 0il grease Rinse with Hanna HI 7077 or HI 8077 Oil and Fat Cleaning Solution IMPORTANT After performing any of the cleaning procedures rinse the electrode thoroughly with distilled water refill the reference chamber with fresh electrolyte not necessary for gel filled electrodes and soak the electrode in HI 70300 or HI 80300 S
19. ASCII characters The electrode slope 6 ASCII chars The ion charge 2 chars The ISE unit 2 chars The short name of the selected language 3 chars Channel 2 data e Calibration alarm timeout for the EC 2 chars e Calibration alarm timeout for the Salinity 2 chars e Setup information 2 chars 8 bit hexadecimal 66 encoding e x01 beep ON else OFF e 0x02 degrees Celsius else Fahrenheit e 0x04 and 0x08 this 2 bits represent the temperature compensation mode 10 ATC 01 MIC 00 NoTC The cell constant with sign and decimal point 7 chars The temperature compensation coefficient with sign and decimal point 6 chars The temperature reference value 2 chars The TDS factor with sign and decimal point 5 chars The short name of the selected language 3 chars NSLxy Requests the number of logged samples 4 chars The command parameter 2 chars request for channel I x 2 request for channel 2 y P request for pH range y M request for mV and Rel mV ranges request for ISE range y request for EC range y R request for Resistivity range y T request for TDS ranges request for NaCl range LLSxy Requests the number of lots information about lots on the specified channel and range x channelnumber y range first letter request for channel I x 2 request for channel 2 y P request for pH range y M request for mV and Rel mV ranges 1 request f
20. Cl information calibration date time and salinity factor Che Last Nall cal Salinity factor 1 243 Notes Press ESC at any moment and the instrument will return to measurement mode e f calibration has not been performed the instrument displays No user calibration message 39 Setup mode allows viewing and modifying the measurement parameters These are general SETUP parameters for all the ranges and range specitic parameters The following table lists the general SETUP parameters their valid range and the factory default settings New Description Valid value Default Backlight Backlight level 0108 4 Contrast Contrast level 0 to 20 10 Date Time 01 08 2009 to 12 31 2099 curent 00 00 to 23 59 date time Time Format AM PM or 24 hours 24 hours Date Format DD MM YYYY YWY MWDD MM DD YYYY YYYY MMYDD YYYY MM DD Mon DD YYYY DD Mon YYYY YYYY Mon DD Language Message display Up to four English language languages Temperature Corr unit AutoEnd Select AutoEnd Fast Medium Accurate Medium Stability Stability Criteria Loginterval Select log interval Manual AutoEnd 5 10 30s Manual 1 2 5 10 15 30 60 Logon demand 120 180 min Beep ON Beeper Status Enabled or Disabled Disabled Instrument ID Instrument identification 0000 to 9999 0000 Baud Rate Serial Communication 600 1200 2400 4800 9600 9600 19200 38400 Meter Displays general information information 40 The following
21. ENU key ESC Is equivalent to pressing ESC key 6 CHRxx Change the instrument range according with the parameter value xx xx 10 pH range 0 001 resolution on channel 1 xx 11 pH range 0 01 resolution on channel xx 12 pH range 0 1 resolution on channel 1 13 mV range on channel 1 xx 14 Relative mV range on channel xx 15 ISE range on channel 1 20 EC range on channel 2 21 Resistivity range on channel 2 22 TDS range on channel 2 xx 23 Salinity range on channel 2 The instrument will answer for these commands with lt SIX gt answer lt EIX gt where lt STX gt 15 02 ASCII code character start of text lt ETX gt is 03 ASCII code character end of text lt answer gt lt ACK gt is 06 ASCII code character recognized command lt NAK gt is 21 ASCII code character unrecognized com mand AN is 24 ASCII code character corrupted command COMMANDS REQUIRING AN ANSWER The instrument will answer for these commands with lt SIX gt answer lt checksum gt EC where the checksum is the bytes sum of the answer string sent as 2 ASCII characters All the answer messages are with ASCII characters RAS Causes the instrument fo send a complete set of readings in according with the current range pH mV reading and temperature on pH range mV and temperature reading on mV range Rel mV absolute mV and temperature reading on Rel mV range concentration mV and temperature re
22. Instruction Manual HI 3512 Two Channels pH ORP ISE EC TDS NaCl Resistivity Temperature Bench Meter HANNA instruments www hannainst com Dear Customer Thank you for choosing a Hanna Instruments product Please read this instruction manual carefully before using this instrument This manual will provide you with the necessary information for correct use of this instrument as well as a precise idea of their versatility If you need additional technical information do not hesitate to e mail us at tech hannainst com or view our worldwide contact list at www hannainst com WARRANTY The 3512 is guaranteed for two years against defects in workmanship and materials when used for their intended purpose and maintained according to instructions Electrodes and probes are guaranteed for six months This warranty is limited to repair or replacement free of charge Damage due to accidents misuse tampering or lack of prescribed maintenance is not covered If service is required contact the dealer trom whom you purchased the instrument If under warranty report the model number date of purchase serial number and the nature of the problem If the repair is not covered by the warranty you will be notified of the charges incurred If the instrument is to be returned to Hanna Instruments first ob
23. L Requests all pH Log on demand when x LODxMALL Requests all mV Rel mV Log on demand when x 1 LODxIALL Requests all ISE Log on demand when x 1 LODxEALL Requests all EC Log on demand when x 2 LODXRALL Requests all Resistivity Log on demand when x 2 LODxTALL Requests all TDS Log on demand when x 2 LODxNALL Requests all Salinity Log on demand when x 2 The answer string contains The number of records 3 chars this is sent only is ALL data is requested e The log type 2 chars The number of the record 3 chars 69 e The reading status 1 char R 0 U e The unit of the reading 2 chars it is sent only for ISE EC Resistivity TDS Salinity log e The calculated reading with sign decimal point and exponent 12 chars e The temperature reading with sign and decimal point 7 chars e The reading status 1 char R 0 U not available for EC log e The second unit of the second reading 2 chars it is sent only for Resistivity TDS and Salinity log e The second reading with sign and decimal point 8 chars not available for EC log The logged time yymmddhhmmss 12 chars The offset with sign and decimal point 7 chars not available for ISE log e The slope for Channel 1 and the cell constant for Channel 2 with sign and decimal point 7 chars not available for Rel mV log e The temperature probe presence 1 char For channel 2 only e The TDS factor for the TDS log only or the sa
24. THREE or TWO POINT CALIBRATION e Proceed as described in FIVE POINT CALIBRATION section e Press ESC atter the appropriate accepted calibration point The instruments will return to calibration screen and will memorize the calibration data SINGLE POINT CALIBRATION There are two selectable options for a single point calibration Replace and Offset This option is configured in SETUP mode under the parameter First Point Mode In both cases the meter will alter the present calibration data in the instrument If Replace is selected a new calibration point will be added to the existing data and the slope is calculated The slopes between current buffer and nearest lower and higher butters will be reevaluated If the Offset option is selected an electrode offset correction is performed to all buffer data keeping the existing slopes unchanged e Proceed as described in FIVE POINT CALIBRATION section e Press ESC after the first calibration point was confirmed The instruments will memorize the single point calibration data and will return to calibration screen Notes Press MTC key to toggle between pH buffer selection and the temperature reading during calibration while temperature probe is disconnected MTC mode ChiCalib pl HTC pH F Tm 25 17 Buffer 1 r ipH e The displayed arrow is moving to the temperature value Use ARROW keys in order to change the temperature ERROR SCREENS Wrong tempe
25. Temperature 0 00 to 10 00 4 C Coeficient TDS Factor 0 40 to 1 00 LOG on demand 400 samples 5 10 30 sec Lot logging 1 2 5 10 15 30 60 120 180 min AutoEnd max 600 samples 235 x 207 x 110 mm 92 x 8 14 x 4 33 0 50 C 32 122 F Environment RH 55 non condensing OPERATIONAL GUIDE POWER CONNECTION Plug the 12 Vdc adapter into the power supply socket Note This instrument use non volatile memory to retain the pH mV lon EC NaCl calibrations and all other settings when unplugged ELECTRODE AND PROBE CONNECTIONS For pH ORP or ISE measurements connect a combination pH ORP ISE electrode to the BNC connector located on the rear panel of the instrument For half cell electrodes with a separate reference connect the electrode s BNCto the BNC connector and the electrode s reference to the corresponding reference input socket For temperature measurements and automatic temperature compensation on pH ORP ISE channel connect the temperature probe to the appropriate socket For EC TDS NaCl or Resistivity measurements connect the EC probe to the DIN connector located on the rear panel of the instrument As the channels are fully isolated and a temperature probe is connected on pH channel you can view independent temperature readings on each channel INSTRUMENT START UP e Turn the instrument ON by pressing ON OFF switch located on the rear panel of the instrument e At start
26. ading on ppm range EC and temperature reading on the EC range 62 e Resistivity EC and temperature reading on the Resistivity range e TDS ECand temperature reading on the Resistivity range e Salinity EC and temperature reading on the Resistivity range The answer string contains e Meter mode 2 chars e 10 pH range 0 001 resolution on channel 1 e 11 pH range 0 01 resolution on channel e 12 pH range 0 1 resolution on channel 13 mV range on channel 1 14 Relative mV range on channel I e 15 ISE range on channel 1 e 20 EC range on channel 2 e 21 Resistivity range on channel 2 e 22 TDS range on channel 2 e 23 Salinity range on channel 2 e Meter status 2 chars of status byte represents a 8 bit hexadecimal encoding 0x10 temperature probe is connected e x01 new GLP data available e x02 new SETUP parameter x04 out of calibration range e x08 the meter is in autoend point mode Reading status 2 chars R in range 0 over range U under range First character corresponds to the primary reading Second character corresponds to the second reading if second reading exists e The unit of the reading 2 chars for ISE EC Resis tivity TDS Salinity ranges only for ISE range it represent the index of the unit selected from setup 0 1 1 User e for EC range 0 microsiemens 1 milisiemens e for TDS range 0 ppm 1 g L for Salinity range the unit represents always e Prim
27. arnings during calibration 2 chars 00 no warning 04 Clean Electrode warning buffer value with sign and decimal point and exponent 12 chars e the calibration time of the buffer yymmdd hhmmss 12 chars 64 electrode condition with sign 3 chars The 7 01 code means not calculated e ISE calibration data if available which contains e the number of calibrated standards 1 char the ISE unit 2 chars e the calibration slope with sign and decimal point 7 chars e the calibration time of the standard yymmdd hhmmss 12 chars standards information for each standard e type 1 char 0 always standard solution e status 1 char N new calibrated in last calibration 0 old from an old calibration warnings during calibration 2 chars 00 no warning e standard value with sign and decimal point and exponent 12 chars calibration time yymmddhhmmss 12 chars e Rel mV calibration data if available which contains e the calibration offset with sign 7 chars the calibration time yymmddhhmmss 12 chars Channel 2 GLP e calibration data if available which contains e the number of calibrated standards 1 char e the offset with sign and decimal point 7 chars the cell constant with sign and decimal point 7 chars the calibration time yymmddhhmmss 12 chars standards information for each buffer e the unit of the standard 0 microsiemens 1 milisiemens e the standa
28. ars 90 C 194 F Less than 4 months 120 C 248 F Less than 1 month Alkaline Error High concentrations of sodium ions interfere with readings in alkaline solutions The pH at which the interference starts to be signiticant depends upon the composition of the glass This interference is called alkaline error and causes the pH to be underestimated Hanna s glass formulations have the indicated characteristics Sodium lon Correction for the Glass at 20 25 C 68 77 F Concentration 0 1 Mol L Na 1 0 Mol L ELECTRODE CONDITIONING amp MAINTENANCE Reference Fill Hole Sensing Wire Reference Wire Reference Junction Glass Bulb Plastic Body pH Electrode Reference Wire Reference Junction Platinum or Gold tip Plastic Body ORP Electrode Not present in gel electrodes Reference Fill Hole Reference Wire Sensing Wire Reference Junction Glass Bulb Glass Body pH Electrode Reference Wire Reference Junction Platinum or Gold tip Glass Body ORP Electrode PREPARATION PROCEDURE Remove the electrode protective cap DO NOT BE ALARMED IF ANY SALT DEPOSITS ARE PRESENT This is normal with electrodes and they will disappear when rinsed with water During transport tiny bubbles of air may have formed inside the glass bulb The electrode cannot function properly under these conditions These bubbles can be removed by sha
29. ary reading corresponding to the selected range 12 ASCII chars including sign and decimal point and exponent 63 MDR GLPx The unit of the second reading 1 char it is sent only for Resistivity TDS and Salinity ranges only It represents the unit of the EC reading 0 microsiemens milisiemens Secondary reading only when primary reading is not mV or EC 8 ASCII chars including sign and decimal point Temperature reading 7 ASCII chars with sign and decimal point always in C Requests the instrument model name and firmware code 16 ASCII chars Requests the calibration data record e x calibration data from channel e x calibration data from channel 2 The answer string contains GLP status 1 char represents a 4 bit hexadecimal encoding e x01 pH calibration available Ch1 or EC calibration available Ch2 e x02 Rel mV calibration available Ch1 or Salinity calibration available Ch2 e x04 ISE calibration available Channel 1 GLP pH calibration data if available which contains e the number of calibrated buffers 1 char e the offset with sign and decimal point 7 chars the average of slopes with sign and decimal point 7 chars the calibration time yymmddhhmmss 12 chars butters information for each buffer e type 1 char 0 standard 1 custom e status 1 char N new calibrated in last calibration O old from an old calibration w
30. ation The calibrated value and the second expected standard value will be displayed Temp After the first calibration point is contirmed immerse the ISE electrode approximately 2 cm 34 into the second calibration solution If necessary press the ARROW keys to select a different standard value The x tag will blink on the LCD until the reading is stable When the reading is stable and close to the selected standard the Confirm function key is displayed Press Confirm to confirm calibration 30 e The calibrated value and the third expected standard value will be displayed e After the second calibration point is contirmed immerse the ISE electrode approximately 2 into the third calibration solution f necessary press the ARROW keys to select a different standard value e The 2 tag will blink on the LCD until the reading is stable e When the reading is stable and close to the selected standard the Confirm function key is displayed e Press Confirm to confirm calibration The calibrated value and the fourth expected standard value will be displayed e After the third calibration point is confirmed immerse the ISE electrode approximately 2 into the fourth calibration solution f necessary press the ARROW keys to select a different standard value e The 2 tag will blink on the LCD until the reading is stable e When the reading is stable and close to the select
31. ation Press Confirm to confirm or ESC to exit without deleting If AutoLog is pressed the lot information of the specific range are displayed Lot Interval Date 1 2003 07 07 2 Autoknd 2009 0707 3 10 2003 07 07 4 10 2009 0707 Delete All Hore Use the ARROW keys to scroll the lots Press the Delete All function key to enter the Delete All lots screen Press the Delete function key to enter the Delete lot screen Press the More function key to view the records information of the focused lot Bug 16 10 00 ae 16 10 10 oe 16 10 20 Hore If More is pressed Record number 1 9 mV CALIBRATION for technical personnel only All the instruments are factory calibrated for mV EC and temperature Hanna s temperature probes are interchangeable and no temperature calibration is needed when they are replaced If the temperature or ORP measurements are inaccurate calibration should be performed For an accurate recalibration contact your dealer or the nearest Hanna Customer Service Center or follow the instructions below mV CALIBRATION e With the instrument off press and hold down the CHANNEL and keys and then power on the instrument The meter will enter mV calibration mode A two point calibration can be performed at 0 mV and 1800 mV e Attach to the BNC connector a mV simulator with an accuracy of 0 1 mV e Enter the calibration screen Press mV function key Set 0 0 mV
32. ation Timeout Focus on the Calibration Timeout item Log interwal Manual AutoEnd Stability Medium Calibration Timeout 1 day Out of Cal Range Warning Modify Press Modify Calibration Timeout Cs Calibration Timeout Ce Disabled Accept Accept Use ARROW keys to set desired value Press Accept to confirm or ESC to return without saving Note If enabled CAL DUE warning will be displayed the set number of days after calibration is over passed Out of Calibration Range Warning Focus on Out of Cal Range Warning item AutoEnd Stability Medium Calibration Timeout 1 day Qut of Cal Range Warning T Compensation Automatic Disable Press the corresponding functional key in order to enable disable this feature If enabled a warning message is displayed when the EC reading is too far from the EC calibration points Temperature compensation Focus on 7 Compensation item c5 Calibration Timeout Disabled ut of Cal Range Warning T Compensation Automatic Range Select Automatic HaTE Manual Press one of the selected functional keys to change the option 52 Select No TC in order to display actual conductivity no temperature compensation Select MTC in order to automatically compensate conductivity using the set temperature coefficient with the temperature manually selected by the user Select ATC in order to automatically compensate conductivity using the set temperature coefficient
33. ct the temperature probe or the EC probe to the appropriate socket Chi Temperature Foint 1 Immerse the temperature probe or the EC probe including temperature sensor into the vessel with ice and water as close as possible to the reference thermometer Allow a few seconds for the probe to stabilize Use the ARROW keys to set the calibration point value to that of ice and water mixture measured by the reference thermometer When the reading is stable and close to the selected calibration point the Confirm function key is displayed Press Confirm to contirm The second expected calibrated point is displayed Chi Temperature C Point 5 n c Immerse the temperature probe into the second vessel as close as possible to the reference thermometer Allow a few seconds for the probe to stabilize 59 Chi Temperature 300 Point 5 c e Use the ARROW keys to set the calibration point value to that of the hot water e When the reading is stable and close to the selected calibration point Confirm function key is displayed Chi Temperature 000 Point zb Confirm e Press Confirm to confirm The instrument returns to the calibration screen Note Use ARROW keys to change calibration point if necessary 10 0 C around the point If the reading is not close to the selected calibration point Wrong message will blink Change the temperature probe and restart calibration 60 Data tra
34. digits can be displayed 9980 i Range Fixed ST Tref 28 0 The top of the fixed range is displayed blinking when the reading exceeds this value To disable fixed range mode enter SETUP and select auto ranging mode Note Auto ranging is automatically restored if the range is changed if the meter is turned off and back on again or if the calibration mode is entered TEMPERATURE COMPENSATION EC CHANNEL The conductivity of a solution with a specific electrolyte concentration changes with temperature The relationship of the change in conductivity as function of temperature is described by a solution s temperature coefficient This coefficient varies with each solution and is user selectable see SETUP mode Two selectable temperature sources are available reading directly from the sensor inside the probe or manual entry Three options of linear temperature compensation are available Automatic temperature readings from the sensor inside the EC probe LOC Tref 26 0 C Recall No Temperature Compensation No TC The temperature shown on the LCD is not taken into account The meter displays the actual conductivity 000 1 0 C Tref 28 0 To select the desired option enter SETUP menu see page 40 If the temperature is out of the 20 C 120 C range the instrument will not do temperature compensation CONDUCTIVITY VERSUS TEMPERATURE CHART The conductivity of an aqueous solution is t
35. e Salinity log only with sign and decimal point 6 chars e The temperature reference value 2 chars e The temperature compensation mode 2 chars The temperature compensation coefficient with sign and decimal point 6 chars For both Channels The log starting time yymmddhhmmss 12 chars 68 LODxPyyy LODxMyyy LODxlyyy LODxEyyy LODxRyyy LODxTyyy LODxNyyy e For each record e The number of the record 3 chars e The reading status 1 char R 0 U The unit of the reading 2 chars it is sent only for ISE EC Resistivity TDS Salinity log only The calculated reading with sign decimal point and exponent 12 chars e The temperature reading with sign and decimal point 7 chars e The second reading status 1 char R 0 U not available for EC log The second unit of the reading 2 chars it is sent only for Resistivity TDS and Salinity log only e The second reading with sign and decimal point 8 chars not available for EC log The logging time 6 chars it is sent only for AutoEnd log e The temperature probe persence 1 char Requests the yyy pH record logged data when x 1 Requests the yyy mV Rel mV record logged data when x 1 Requests the yyy ISE record logged data when x 1 Requests the yyy EC record logged data when x 2 Requests the yyy Resistivity record logged data when x 2 Requests the yyy TDS record logged data when x 2 Requests the yyy Salinity record logged data when x 2 LODxPAL
36. e in FDA approved bottle 4x30 mL HI 8082 3 5M KCI Electrolyte in FDA approved bottle 4x30 mL for double junction electrodes HI 8093 1M KCI AgCl Electrolyte FDA approved bottle 4x30 mL ORP PRETREATMENT SOLUTIONS HI7091L Reducing Pretreatment Solution 500 mL bottle 70921 Oxidizing Pretreatment Solution 500 mL bottle ORP SOLUTIONS 70200 Test Solution 200 275 mV 500 mL bottle 70210 Test Solution 240 mV 500 mL bottle 70220 Test Solution 470 mV 500 mL bottle pH ELECTRODES All electrodes part numbers ending in B are supplied with a BNC connector and 1 m 3 3 cable as shown below HI 1043B Glass body double junction refillable combination pH electrode Use strong acid alkali 9 5mm DIA 12 mm 0 37 0 5 Af la 120 mm 47 B s HI 1053B Glass body triple ceramic conic shape refillable combination pH electrode Use emulsions 12 mm 0 5 HI 1083B Glass body micro Viscolene non refillable combination pH electrode Use biotechnology micro titration 12 mm 0 5 5 mm 3 mm 0 2 0 12 3 0 DA AG oss lg 120 mm gt HI 1131B Glass body single junction refillable combination pH electrode Use general purpose ony DIA 12 mm 4 1330B Glass body semimicro single junction refillable combination pH electrode Use laboratory vials DIA
37. ed standard the Confirm function key is displayed e Press Confirm to confirm calibration e The calibrated value and the fifth expected standard value will be displayed e After the fourth calibration point is confirmed immerse the IS electrode approximately 2 cm 4 into the fifth calibration solution f necessary press the ARROW keys to select a different standard value e The 2 tag will blink on the LCD until the reading is stable e When the reading is stable and close to the selected standard the Confirm function key is displayed e Press Confirm to confirm calibration The instrument stores the calibration value and returns to normal measurement mode Note The instrument will automatically skip the standard solutions used during calibration 3l ERROR SCREENS Wrong standard The calibration cannot be confirmed Verify that the correct standard is selected 2 10 Wrong Std Temp The message appears if mV input is out of 2000 mV range Wrong slope The calibration cannot be contirmed This message is displayed if slope is out of the accepted range Slope under accepted value 30 default slope Verify that the correct standard is selected Temp Wrong old slope An inconsistency between present and previous old calibration is detected Clear old calibration parameters and continue calibration from the current point The instrument will keep all contirmed values during current cal
38. ent calibration ChiCalib pH HTC Note For single point calibration the electrode condition is not displayed in the measurement screen Each time a buffer is confirmed the new calibration parameters replace the older calibration parameters of the corresponding buffer If an additional single buffer calibration is added at a latter time the new buffer point will be added to the stored calibration If the existing stored calibration is full five calibration points after confirming the calibration point the instrument will ask which buffer will be replaced by current buffer On the Buffer line will be displayed the proposed buffer ChiCalib pl HTC H 8603 Replace Buffer 1 Confirm Press ARROW keys to select another buffer to be replaced Press Confirm to confirm the buffer that will be replaced Press ESC to exit mode In this case the buffer will not be entered Note The replaced buffer is not removed from calibration list and it can be selected for the next calibration points WORKING WITH CUSTOM BUFFERS If at least one custom buffer was set in SETUP menu it can be selected for calibration by pressing the ARROW keys The Custom function key will be displayed ChiCalib pH x pH 1 Umv zb Buffer 1 Custom Press Custom if you want to adjust the buffer to its value at the current temperature 24 Use the ARROW keys fo change the buffer value Chitalib pH MTC pH E1 0mv
39. he lower LCD line 13 EC range The conductivity range is from 0 to 400 mS cm The actual conductivity range the uncompensated conductivity is up to 1000 mS cm The instrument will display conductivity readings up to 1000 mS cm Recall Note The symbol in front of the temperature reading means that the temperature can be entered by the user Manual option selected in SETUP Resistivity range The reciprocal of the conductivity of a material is the resistivity TDS range A conductivity measured value can be corrected to a total disolved solids value using the TDS factor value entered in SETUP Che TIS Recall Salinity The salinity is derived from the conductivity of a sample The percent of salinity in a sample is depending of the sample and on the salinity coefficient AUTO RANGING EC CHANNEL The EC Resistivity and TDS scales are auto ranging The meter automatically sets the scale with the highest possible resolution By pressing Lock the auto ranging feature is disabled and the current range is frozen on the LCD Range Locked 25 1 C Tref 25 09 StartLog AutoRing AukoEnd The Range Locked message is displayed To restore the auto ranging option press AutoRng functional key again The auto ranging mode is also disabled by selecting a fixed range in the SETUP menu While in fixed range mode the instrument will display the readings with the fixed resolution Maximum 6
40. he measure of its ability to carry an electrical current by means of ionic motion The conductivity invariably increases with increasing temperature It is affected by the type and number of ions in the solution and by the viscosity of the solution itself Both parameters are temperature dependent The dependency of conductivity on temperature is expressed as a relative change per Celsius degree at a particular temperature commonly as percent per C The following table lists the temperature dependence of the HANNA calibration butters HI7031 HI7035 HI7039 HI8030 HI8031 HI8034 HI8035 HI8039 uS em uS em uSJem u em uSjem 65400 74100 83200 92500 94400 96300 98200 100200 102100 104000 105900 107900 109800 111800 113800 115700 117700 119700 121800 123900 BACKLIGHT FEATURE The instrument is provided with a Backlight feature The Backlight levels can be selected in the SETUP menu USER CALIBRATION To enter User Calibration screen press CAL key while in pH Rel mV ISE range pH channel or EC Salinity range EC channel From EC range Che Calibration Temp Press the corresponding functional key to enter e user calibration e h2 temperature user calibration From pH range Chi Calibration Temp Press the corresponding functional key to enter pH user calibration e hl temperature user calibration
41. ibration The instrument will display on the primary LCD if is not calibrated or atter all calibrations are cleared If Clear is pressed during the first calibration point the instrument returns to measurement mode Notes Press Temp function key to select temperature value to be changed if the temperature probe is not connected e ISE range is not temperature compensated on this meter Standards and samples should be at the same temperature 32 EC CALIBRATION It is recommended to calibrate the instrument frequently especially if high accuracy is required The EC range should be recalibrated e Whenever the EC electrode is replaced e At least once a week e After testing aggressive chemicals e When calibration alarm time out is expired CAL DUE blinks if feature is enabled in SETUP f Out of cal range message appears on the LCD during EC measurement the measurement range is not covered by current calibration if feature is enabled in SETUP Note TDS and Resistivity readings are automatically derived from the EC reading and no specific calibration is needed PROCEDURE HI 3512 instrument offers a choice of 7 memorized standards 0 00 uS cm 84 0 uS cm 1 413 mS cm 5 00 mS cm 12 88 mS cm 80 0 mS cm and 111 8 mS cm For accurate EC measurements it is recommended to perform an offset calibration and slope calibration in the nearest value standard solution of the samples readings
42. ide laboratory results and accuracy Two input channels are available e Channel 1 pH mV ISE and temperature e Channel 2 ETDS NaCl Resistivity and temperature HI 3512 is provided with a series of new diagnostic features which add an entirely new dimension to the measurement of pH and EC by allowing the user to dramatically improve the reliability of the measurement pH channel e 7 standard pH buffers pH 1 68 4 01 6 86 7 01 9 18 10 01 and 12 45 for calibration e pH calibration up to five calibration points see instrument specifications e Custom calibration with up to two custom buffers e Messages on the graphic LCD for an easy and accurate calibration Diagnostic features to alert the user when the electrode needs cleaning e User selectable Out of cal range warning e User selectable Calibration Timeout to remind when a new calibration is necessary Extended temperature range on pH channel from 20 to 120 C 4 to 248 F using HI 7662 T interchangeable temperature probes EC channel 7 memorized standards 0 00 wS cm 84 0 uS cm 1 413 mS cm 5 00 mS cm 12 88 mS cm 80 0 mS cm and 111 8 mS cm for calibration EC calibration up to two calibration points Messages on the graphic LCD for an easy and accurate calibration Diagnostic features to alert the user when the electrode needs cleaning User selectable Out of cal range warning User selectable Calibration Timeout to re
43. ion reading Display shows Clean Difference between new Clean electrode and electrode blinking andprevious recalibrate If the problem calibration has been remains check the buffer detected solutions Meter does not work with Broken temperature Replace temperature probe temperature probe probe Meter fails to calibrate or Broken electrode Replace electrode gives faulty readings At startup the meter One of the keys is Contact your dealer at any displays Hanna Logo tags blocked Hanna Instruments Service permanently Center Error messages are Wrong or contaminated Check that buffer solution is displayed during pH buffer electrode dirty or correct and fresh and the calibration procedure broken meter is set for the correct buffer Errxx message at Internal error Contact your dealer or any start up Hanna Service Center 6 pH CALIBRATION SOLUTIONS HI 50004 01 pH 4 01 Buffer Solution 20 mL sachet 10 pcs HI 50004 02 pH 4 01 Buffer Solution 20 mL sachet 25 pcs HI 50007 01 pH 7 01 Buffer Solution 20 mL sachet 10 pcs 50007 02 pH 7 01 Buffer Solution 20 mL sachet 25 pcs 50010 01 pH 10 01 Buffer Solution 20 mL sachet 10 pcs 50010 02 pH 10 01 Buffer Solution 20 mL sachet 25 pcs HI 5016 pH 1 68 Buffer Solution 500 mL bottle HI 5004 pH 4 01 Buffer Solution 500 mL bottle HI 5068 pH 6 86 Buffer Solution 500 mL bottle HI 5007 pH 7 01 Buffer Solution 50
44. ipH After the first calibration point is confirmed immerse the pH electrode and the temperature probe approximately 3 cm 13 into the second butter solution and stir gently The temperature probe should be close to the pH electrode If necessary press the ARROW keys to select a different buffer value The x tag will blink on the LCD until the reading is stable 20 Chitalib pH H 402 173 3mV 25 17 Buffer z 3 ipH When the reading is stable and dose to the selected buffer the Confirm function key is displayed ChiCalib pH H 402 1r3 3mv 25 1 C Buffer 2 4 01pH Confirm Press Confirm to confirm calibration The calibrated value and the third expected buffer value will be displayed 25 17 Buffer 3 10 01pH After the second calibration point is confirmed immerse the pH electrode and the temperature probe approximately 3 cm 13 into a third buffer solution and stir gently The temperature probe should be close to the pH electrode Chi Calib pH ATC If necessary press the ARROW keys to select a different buffer value The x tag will blink on the LCD until the reading is stable When the reading is stable and close to the selected buffer the Confirm function key is displayed ChiCalib pH ATC Confirm e Press Confirm to confirm calibration Repeat this procedure with two additional pH buffers to encompass the entire sample pH range 2 FOUR
45. ized water Immerse the probe into HI 7037L solution Tap the probe repeatedly to remove any air bubbles that may be trapped inside the sleeve e The 2 tag will blink on the LCD until the reading is stable e When the reading is stable the Confirm functional key is displayed Press Confirm to contirm calibration Che Hall Confirm e The instrument returns to measurement mode Notes Che Calib Hall Std 1 f the uncalibrated reading is too far from the expected value calibration is not recognized The Wrong message will be displayed e The meter uses 1 90 C temperature compensation factor during calibration If the Temperature Coef in the Setup menu has been set to a different value when exiting calibration mode the displayed value might be different from the nominal standard value 36 GOOD LABORATORY PRACTICE GLP GLP is a set of functions that allows storage and retrieval of data regarding the maintenance and status of the electrode All data regarding pH Rel mV ISE EC or Salinity calibration is stored for the user to review when necessary EXPIRED CALIBRATION The instrument is provided with a real time clock in order to monitor the time elapsed since the last pH calibration The real time clock is reset every time the instrument is calibrated and the expired calibration status is triggered when the instrument detects calibration time out The CAL DUE wa
46. king down the electrode as you would do with a glass thermometer If the bulb and or junction are dry soak the electrode in HI 70300 Storage Solution for at least one hour Open the fill hole if refillable id For refillable electrodes If the filling solution electrolyte is more than 2 cm 17 below the fill hole add HI 7082 or HI 8082 3 5M KCI Electrolyte Solution for double junction or HI 7071 or HI 8071 3 5M AgCl Electrolyte Solution for single junction electrodes For faster response unscrew the fill hole screw during measurements For AmpHel electrodes If the electrode does not respond to pH changes the battery has run down and the electrode should be replaced MEASUREMENT Rinse the pH electrode tip with distilled or deionized water Immerse the tip 3 cm 13 in the sample and stir gently for a few seconds For faster response and to avoid cross contamination of the samples rinse the electrode tip with a few drops of the solution to be tested before taking measurements See that the sleeve holes of the ORP probe are completly submersed STORAGE PROCEDURE To minimize clogging and assure a quick response time the glass bulb and the junction of pH electrode should be kept moist and not allowed to dry out Replace the solution in the protective cap with a few drops of HI 70300 or 80300 Storage Solution or in its absence Filling Solution 7071 or 8071 for single junction and HI 7082 or HI
47. linity factor for the salinity log only with sign and decimal point 6 chars e The temperature reference value 2 chars e The temperature compensation mode 2 chars e The temperature compensation coefficient with sign and decimal point 6 chars Err3 is sent if the Log on demand is empty Err4 is sent if the requested parameter is not available Err is sent if the requested range is not available Err is sent if the instrument is not in measurement mode Invalid commands will be ignored 70 TEMPERATURE CORRELATION FOR pH SENSITIVE GLASS The resistance of glass electrodes partially depends on the temperature The lower the temperature the higher the resistance It takes more time for the reading to stabilize if the resistance is higher In addition the response time will suffer to a greater degree at temperatures below 25 C 77 F 20 10 O 10 20 30 40 50 60 70 80 90 C Since the resistance of the pH electrode is in the range of 50 200 Mohm the current across the membrane is in the pico Ampere range Large currents can disturb the calibration of the electrode for many hours For these reasons high humidity environments short circuits and static discharges are detrimental to a stable pH reading The pH electrode s life also depends on the temperature If constantly used at high temperatures the electrode life is drastically reduced Typical Electrode Life Ambient Temperature 1 3 ye
48. lope item Charge filope Accept Use ARROW keys in order to select the desired combination If 59 16 is selected the slope of the probe can be changed by pressing Modify key Charge flope 2129 18 1 53 15 2 23 18 659 15 Modify Press Modify Custom Slope Accept Use ARROW keys to change the slope Press Accept to confirm or ESC to exit Focus on Molar Weight Accept Modify Press Modify in order to change molar weight 1 000g mol Use ARROW Keys to change the value Press Accept to confirm or ESC to exit 50 If Standard was pressed Standard gt Cyanide Fluoride lodide Accept Vien Use ARROW keys to focus on the desired electrode Press Accept to contirm setting or ESC to exit Press View to see probe parameters Electrode Details Hame Fluoride Molar Weight 18 3383 mol Eharge Slope 1 53 16 ISE unit Focus on the SE Unit item Calibration Timeout Disabled ISE probe Fluoride ISE Unit Temperature Unit Modify Press Modify Accept Use ARROW key to select unit Press Accept to contirm selection or ESC to exit Notes If the unit is changed or User is selected a warning message will be displayed to alert that the ISE range must be calibrated e fa new probe was selected or custom probe parameter are changed the ISE range must be calibrated 5 EC CHANNEL RANGE SPECIFIC PARAMETERS Calibr
49. mind when a new calibration is necessary Extended temperature range on EC channel from 20 to 120 C 4 to 248 F using temperature sensor inside EC probe Temperature compensation selection Temperature reference selection 15 C 20 C or 25 C Temperature coefficient set Lock and user setup Fixed range selection Other features include Log on demand up to 400 samples Log interval with log on stability feature up to 600 records Auto Hold feature to freeze first stable reading on the LCD GLP feature to view last calibration data for pH Rel mV ISE EC or NaCl PC interface This instrument can also measure with ORP electrodes pH channel input thanks to their capability to measure mV with a resolution up to 0 1 mV and with ISE electrodes on ppm scale pH channel input The electrode type and unit selection capability and the ISE calibration in up to five calibration standard solutions make this instrument very useful for a large range of concentration solutions measurements Relative mV feature is also available This instrument can also measure in Resistivity TDS and Salinity on EC channel FUNCTIONAL DESCRIPTION Front view gl Ea 9 d CHANNEL 1 Liquid Crystal Display LCD 2 Function keys 3 CHANNEL keys to toggle between channels Ch1 pH Ch2 EC 4 A V keys to manually increase decrease the parameters or to scroll betwee
50. n the parameter list 5 MENU key to change the function key at the bottom of the display 6 RANGE key to switch between pH mV and ISE range Ch1 EC Resitivity TDS and Salinity range Ch2 7 HELP key to enter exit contextual help 8 CAL key to enter calibration mode 9 ESC to escape the current mode exit calibration setup help etc Rear view 10 ON OFF switch 11 Power adaptor socket 12 USB connector 13 DIN connector for EC probe 14 BNC electrode connector for pH ORP ISE electrode 15 Temperature socket for pH ORP ISE channel 16 Reference electrode connector for pH ORP ISE channel SPECIFICATIONS 2 0 to 20 0 pH 2 00 to 20 00 pH 2 000 to 20 000 pH Range 2000 0 mV 1 00 E 7 to 9 99 E10 conc 20 0 to 120 0 C 4 0 to 248 0 F Channel 3 digits 0 01 0 1 1 10 conc 0 002 pH Accuracy 20 C 68 F 0 5 of reading monovalent ions 1 of reading divalent ions 0 2 0 4 F excluding probe error Rel mV offset range 2000 mV Up to five point calibration 7 standard buffers available 1 68 4 01 6 86 7 01 9 18 10 01 12 45 and 2 custom buffers Manual or Automatic from Compensation 20 0 to 120 0 C 4 0 to 248 0 F Up to five point calibration points ISE Calibration 6 standard solutions available 0 1 1 10 100 1000 10000 ppm pH Calibration 0 to 400 mS cm shows values up to 1000 mS cm Actual conductivity 1000 mS cm 0
51. nsmission from the instrument to the PC can be done with the HI 92000 Windows compatible software optional HI 92000 also offers graphing and on line help feature Data can be exported to the most popular spreadsheet programs for further analysis To connect your instrument to a PC use an USB cable connector Make sure that your instrument is switched off and plug one connector to the instrument USB socket and the other to the serial or USB port of your PC Note If you are not using Hanna Instruments HI 92000 software please see the following instructions SENDING COMMANDS FROM PC It is also possible to remotely control the instrument with any terminal program Use an USB cable to connect the instrument to a PC start the terminal program and set the communication options as follows 8 N 1 no flow control COMMAND TYPES To send a command to the instrument follow the next scheme lt command prefix gt lt command gt CR where lt command prefix gt is the 16 ASCII character lt command gt is the command code Note Either small or capital letters can be used SIMPLE COMMANDS KFI Is equivalent to pressing function key 1 KF2 Is equivalent to pressing function key 2 KF3 Is equivalent to pressing function key 3 RNG Is equivalent to pressing RANGE key CAL Is equivalent to pressing CAL key UPC Is equivalent to pressing the UP arrow key DWC Is equivalent to pressing the DOWN arrow key MNU Is equivalent to pressing M
52. oint is confirmed immerse the EC electrode into the second standard solution and stir gently Tap the probe repeatedly to remove any air bubbles that may be trapped inside the sleeve The instrument will automatically detect the standard after few seconds the reading is stable If necessary press the ARROW keys to select a different standard value The x tag will blink on the LCD until the reading is stable 34 e When the reading is stable and close to the selected standard the Confirm functional key is displayed Confirm e Press Confirm to confirm calibration ERROR SCREENS Wrong standard The calibration cannot be confirmed Wrong Std 1 The EC reading is not close to the selected standard or the temperature is out of the 0 60 C window Select another standard using the ARROW keys or change the temperature value CLEAR CALIBRATION Press Clear functional key when displayed to clear old calibrations All old calibrations are cleared and the instrument returns to measurement mode NaCl CALIBRATION NaCl calibration is a one point procedure in 100 0 NaCl solution Use the HI 7037L calibration solution sea water solution as a 100 NaCl standard solution e To enter NaCl calibration select the Salinity range and press CAL e The measured NaCl the temperature and the 100 NaCl standard are displayed 35 Che Hall e Rinse the probe with some of the calibration solution or deion
53. or ISE range y request for EC range y R request for Resistivity range y T request for TDS ranges request for NaCl range The answer string contains number of lots 3 chars For each lot the lot number 3 chars the number of oe in lot 3 chars e the log interval 5 chars the value is in seconds for AutoEnd log the value sent is 11000 e log starting time yymmddhhmmss 12 chars CLDxyqqq Requests all records of the 999 lot from the specified chan nel and range x channel number y range first letter The command parameter 5 chars e x request for channel 1 e x request for channel 2 e y P request for pH range e y M request for mV and Rel mV ranges request for ISE range e y E request for EC range e y R request for Resistivity range e y T request for TDS ranges e y N request for NaCl range qqq the qggth lot of the requested range The answer string contains e Log header data The log type 2 chars e The lot number 3 chars The number of records in lot 3 chars The log the log interval 5 chars the value is in seconds for AutoEnd log the value sent is 11000 The offset with sign and decimal point 7 chars not available for ISE log The slope for Channel 1 and the cell constant for Cannel 2 with sign and decimal point 7 chars not available for Rel mV log For Channel 2 only e The TDS factor for the TDS log only or the salinity factor for th
54. played Ch1 Calib Rel mV 00 1 3 Abs mv Confirm Press Confirm to confirm relative mV calibration The instrument will return to measurement mode If the absolute mV reading is out of range or the Relative mV offset is out of the offset window Wrong relative offset message is displayed 1300 1 Abs my eb Wrong relative offset Change the input value or the Relative mV value to complete the calibration process Note If a Rel mV offset calibration exists CLR function key is displayed Press CLR if you want Rel mV offset to be 0 0 mV 28 ISE CALIBRATION It is recommended to calibrate the instrument frequently especially if high accuracy is required The ISE range should be recalibrated e Whenever the ISE probe or ion charge is changed At least once a day e fter testing aggressive chemicals e When calibration alarm time out is expired CAL DUE warning blinks if feature is enabled Follow instructions for the individual electrode Due to electrode conditioning time the electrode must be kept immersed a few seconds to stabilize The user will be guided step by step during calibration with easy to follow messages on the LCD This will make the calibration a simple and error free procedure PROCEDURE Select the proper ISE probe in SETUP menu or select the proper lon Charge slope see SETUP for details page 40 Note If the ISE probe has not been previously calibrated at least one
55. rature The calibration cannot be confirmed Chitalib pH ATC 7007 Wron 105 570 Temperature r1 ipH If the temperature is less than 0 C or greater than 100 C during calibration the calibration cannot be confirmed 22 Wrong buffer The calibration cannot be confirmed The pH reading is not close to the selected buffer Select another buffer using the ARROW keys or change the butter ChiCalib pH HTC 40 Wrong Buffer 25 1 C 10 01pH Electrode Dirty Broken alternatively with Buffer Contaminated The calibration cannot be confirmed ChiCalib pH HTC ChiCalib pH HTC H 581 Electrode 250 C fBurfer Dirty 2 Broken T O1PHE Contaminated Buffer Buffer The offset of the electrode is not in the accepted range Check if the electrode is broken or dean it following the CLEANING PROCEDURE see page 4 Check the quality of the buffer If necessary change the buffer Wrong slope The calibration cannot be confirmed ChiCalib pH HTC Buffer The evaluated slope is less than the lowest accepted value 8096 of default slope ChiCalib pH HTC Buffer The evaluated slope is more than the highest accepted value 110 96 of default slope 23 Wrong old slope An inconsistency between new and previous old calibration is detected Clear old calibration parameters and initiate calibration from the current point The instrument will keep all confirmed values during curr
56. rd value with sign decimal point and exponont 11 chars e the calibration time of the standard yymmddhhmmss 12 chars e the temperature reference value 2 chars the temperature compensation mode 2 chars 00 NoTC 01 MIC 02 the temperature compensation coefficient with 65 sign and decimal point 6 chars Salinity calibration data if available which contains the number of calibrated standards 1 char always 1 e the salinity factor with sign and decimal point 7 chars calibration time yymmddhhmmss 12 chars PARx Requests the setup parameters setting e x setup parameters for channel 1 e x 2 setup parameters for channel 2 The answer string contains Lot log interval index 2 ASII chars it represents the index from the setup list for the log interval e Backlight Value 1 ASCII char e Contrast Value 2 ASCII char e Instrument ID 4 chars Channel 1 data e Calibration Alarm time out for pH 2 chars Calibration Alarm timeout for ISE 2 chars SETUP information 2 chars 8 bit hexadecimal encoding e x01 beep ON else OFF x02 degrees Celsius else degrees Fahrenheit e x04 Offset calibration else Point calibration The number of pH custom buffers 1 char The custom buffer values with sign and decimal point for each defined custom buffer 7 chars The ID of the ISE electrode 2 chars standard or custom The molar weight of the selected ION with sign and decimal point 9
57. re factory calibration time date HI3512 Heter Info Firmware Language my 2008 06 25 10 03 11 Temp 2005 0625 10 00 54 pH CHANNEL RANGE SPECIFIC PARAMETERS SCREENS Calibration Timeout Focus on the Calibration Timeout item AutoEnd Stability Medium Calibration Timeout Disabled First Foint Mode Feplace Custom Buffers Modify Press Modify Calibration Timeout CS Calibration Timeout Cs Disabled Accept Accept Use ARROW keys to set desired value Press Accept to confirm or ESC to return without saving Note If enabled CAL DUE warning will be displayed the set number of days calibration is past due First point mode Focus on the First Point Mode item AutoEnd TT Sint Calibration Timeout Disabled First Foint Mode Feplace zc 3 Buffers zc 3 Press the displayed function key in order to change the option First point mode refers to the behaviour of the instrument regarding One point calibration 4 If Offset is set after one point calibration the instrument evaluates the offset and keeps the slopes unchanged Custom Buffers Focus on the Custom Buffers item SetupipH Calibration Timeout Disabled First Point Mode Replace Custom Buffers View Calibration Points Modify Press Modify Press Add to add a new buffer to the list max 2 Press Modify to set custom buffer value Accept Use ARROW keys to change the value Press Accept fo con
58. right side of the butfer value LAST RELATIVE mV CALIBRATION DATA Last Relative mV calibration data is stored automatically after a successful calibration To view the Relative mV calibration data press GLP key while in Relative mV measurement mode The instrument will display the Relative mV GLP information calibration date time and offset Chi Last Rel mV cal Date 2009 07 07 Time 15 41 30 Offset 1900 LAST ISE CALIBRATION DATA Last ISE calibration data is stored automatically after a successful calibration To view the ISE calibration data press GLP function key while in ISE measurement mode If GLP function key is not displayed press MENU key The instrument will display the ISE calibration information calibration date time slope calibration status and electrode type Chi Last ISE cal Std ppm Date 2009 07 07 38 LAST EC CALIBRATION DATA The last pH calibration data is stored automatically after a successful calibration To view the EC calibration data press GLP when the instrument is in the EC measurement mode The instrument will display a lot of data including calibration standards offset time and date cell constant etc Ch Last EC cal LAST NaCl CALIBRATION DATA Last NaCl calibration data is stored automatically after a successful calibration To view the NaCl calibration data press GLP key while in NaCl measurement mode The instrument will display the Na
59. rning will start blinking to warn the user that the instrument should be recalibrated The calibration time out can be set see SETUP for details page 40 from to 7 days or can be disabled For example if a 4 days time out has been selected the instrument will issue the alarm exactly 4 days atter the last calibration However if at any moment the expiration value is changed e g to 5 days then the alarm will be immediately recalculated and appear 5 days after the last calibration Notes When the instrument is not calibrated or calibration is cleared default values loaded there is no expired calibration and the display always shows the CAL DUE warning blinking e When an abnormal condition in the Real Time Clock is detected the instrument forces the expired calibration status LAST pH CALIBRATION DATA The last pH calibration data is stored automatically after a successful calibration To view the pH calibration data press GLP function key when the instrument is in the pH measurement mode If GLP function key is not displayed press MENU key Chi Last pH cal Butter pHl Offset 0 7my Aver Slop The instrument will display a lot of data including calibration buffer offset slope electrode condition 3 Notes Buffers standards displayed in video inverse mode are from previous calibrations pH and ISE range only e The pH custom buffers are marked with an on the
60. s to measuring mode ChiCalib pH HTC H 70 Calibration Clear ed 2b r ipH ELECTRODE CONDITION The display is provided with an icon and a numeric value unless the feature is disabled which gives an indication of the electrode status after calibration The indication remains active until the end of the calibration day inks 25 0 T 4ni 7 01 10 01 12 45 StartLog AutoEnd Note The electrode condition is evaluated only if current calibration includes at least two standard butters CLEAN ELECTRODE WARNING Each time pH calibration is performed the instrument internally compares the new calibration with the one previously stored When this comparison indicates a significant difference the Clean Electrode warning message is displayed to advise the user that the pH electrode may need to be cleaned see ELECTRODE CONDITIONING amp MAINTENANCE section for details page 72 ChiCalib pH 664 Clean Electrode Buffer 1 Confirm After cleaning perform a new calibration Note If the calibration data are cleared the comparison is done with the default values 26 pH BUFFER TEMPERATURE DEPENDENCE Temperature has an effect on pH buffers During calibration the instrument will automatically calibrate to the pH value corresponding to the measured or set temperature pH BUFFERS me vm s ores rnv er as reff afee ete Booed Des en ie oa en a s Psp we em no re ve vo
61. sation Temperature Reference temperature 15 C 20 C 25 C 25 C Ref Temperature unit C or F gi TDS factor 0 40 to 1 00 0 50 41 To enter SETUP menu press SETUP function key while in measuring mode pH Cal points FR 4 01 7 01 10 01 Recall If SETUP is not displayed press MENU key GENERAL PARAMETER SCREENS Backlight Focus on the Backlight item Setup pH Temperature Unit Backlight Modify Press Modify Backlight I5 Accept Use keys to change the intensity then press Accept to confirm Press ESC to leave without changing Contrast Focus on the Contrast item Temperature Unit Backlight E 5 Contrast a 15 46 15 Modify Press Modify Use keys to change contrast then press Accept to confirm Press ESC to leave without changing 47 Date Time Focus on the Date Time item ontrast Date Tine 15 47 14 Time Format 24 hours Date Format rar ANS Oo Modify Press Modify Date Time 15 AMO 4 16 02 49 Use gt keys to select item Use ARROW keys to change focused values Press Accept to contirm new setting or ESC to leave without changing Time Format Focus on the Time Format item 15 47 Time Format 24 hours Date Format DUC DD RIP Press function key to change the option Date Format Focus on the Date Format item SetupipH late Time 15 48 04 Time Format 2
62. se these instruments when voltages at the measurement surface exceed 24 VAC or 60 VDC To avoid damage or burns do not perform any measurement in micro wave ovens Hanna Instruments reserves the right to modify the design construction and appearance of its products without advance notice HANNA instruments Hanna Instruments Inc Highland Industrial Park 584 Park East Drive Woonsocket RI 02895 USA Technical Support for Customers Tel 800 426 6287 Fax 401 765 7575 E mail tech Qhannainst com www hannainst com Local Sales and Customer Service Office Printed in EUROPE ROMANIA MAN3512 07 10
63. see ISE CALIBRATION for details page 29 Notes When the reading is out of range the display will flash the closest full scale value The instrument will display on the primary LCD if it is not calibrated Perform at least a single point calibration in order to take ISE measurements e hanging the selection in the SETUP menu for the ISE electrode or the ISE parameter will require calibration TEMPERATURE MEASUREMENTS pH channel Connect the HI 7662 T temperature probe to the appropriate socket Immerse the temperature probe into the sample and allow the reading on the secondary LCD to stabilize Note The temperature can be displayed in Celsius degrees C or in Fahrenheit degrees F see SETUP for details page 40 EC TDS NaCl Resistivity channel Immerse the conductivity probe which includes also the temperature sensor into the solution to be tested The sleeve holes must be completely submerged Tap the probe repeatedly to remove any air bubbles that may be trapped inside the sleeve If needed press CHANNEL to select EC channel or and press RANGE repeatedly until the desired range EC Resistivity TDS Salt is selected on the LCD If needed select the Automatic or No compensation mode to perform temperature measurements see SETUP for details page 40 Allow for the reading to stabilize The main LCD line displays the measurement in the selected range while the temperature is displayed on t
64. tain a Returned Goods Authorization number from the Technical Service department and then send it with shipping costs prepaid When shipping any instrument make sure if is properly packed for complete protection TABLE OF CONTENTS EE ERE 2 PRELIMINARY EXAMINATION 3 GENERAL DESCRIPTION senten 3 FUNCTIONAL DESCRIPTION EEE 5 Susie c 7 FANE 10 AUTO RANGING EC CHANNEL esse sted triti eerte 15 TEMPERATURE COMPENSATION EC CHANNEL 16 CONDUCTIVITY VERSUS TEMPERATURE CHART 17 USER EEE ENE 18 PH CALIBRATION 19 pH BUFFER 2 27 RELATIVE mV CALIBRATION i titii eerte etr neptis vtr barche 28 SEE O 29 IN 33 GOOD LABORATORY PRACTICE 37 Mer 40 MN 55 mV CALIBRATION for technical personnel 58 TEMPERATURE CALIBRATION for technical personnel 59 MI m 61 TEMPERATURE CORRELATION
65. te Press one of the displayed function keys to select the AutoEnd stability criteria Three options are available Fast Medium Accurate For the pH range the stability criteria are different for different pH resolution selected Medium in 0 01 pH range is different than Medium in 0 001 range Log interval Focus on Log interval item Log interwal Manual Use the arrow keys in order to select an option If the selected option is Manual the Log on demand is selected If AutoEnd is selected the reading will be memorized only when is stable If a specific interval is selected the reading is memorized at the start of the specitic interval 45 Instrument ID Focus on the nstrument ID item Setup pH Language English Beep On f Instrument ID 001010 Baud Rate S600 Modify Press Modify Use ARROW Keys to change the instrument ID Press Accept to confirm or ESC to exit without saving Baud Rate Focus on the Baud Rate item SetupipH Beep h Instrument ID 0000 Baud Fate 4600 Meter Information Modify Press Modify Baud Rate I5 2400 4800 Use ARROW keys to select the desired communication baud Press Accept to confirm or ESC to exit Meter information Focus on the Meter Information item Beep On Instrument ID Baud Rate Meter Information Press Select 46 The meter informations are displayed firmware version language version mV EC and temperatu
66. tirm custom buffer value or ESC to exit without saving pH Resolution Focus on the pH Resolution item SetupipH cos Log interwal Manual il PH Reszalulian AutoEnd Stability Medium Timeout Disabled 0 001 Press the displayed function key to change option 48 View Calibration Points Focus on the View Calibration Points item First Point Mode Replace Custom Buffers view Calibration Points Out of Cal Range Warning Disable Press the displayed function key to change option If option is enabled the calibration butfers corresponding to the last calibration are displayed in the pH measurement screen Out of Calibration Range Warning Focus on the Out of Cal Warning item View Calibration Points Out of Cal Range Warning Temperature Unit Disable Press the displayed function key in order to change option If enabled the Out of cal range message will be displayed if the pH reading is not within the calibration range ISE probe Focus on the SE pao item probe Fluor ISE Unit Temperature Unit Standard Custom Press Custom in order to set the parameters for a custom probe Press Standard in order to select one probe from the standard probes list If Custom is pressed Custom Elec Setup 16 ChargesSlope 1 53 15 1 0009 mal Accept Modify Use ARROW keys to focus on the parameter to be changed Charge Slope or Molar Weight 49 Focus on Charge S
67. torage Solution for at least 1 hour before calibrating 74 EC PROBE MAINTENANCE Rinse the probe with clean water after measurements If more cleaning is required remove the probe sleeve and clean the probe with a cloth or nonabrasive detergent Make sure to reinsert the sleeve onto the probe properly and in the right direction After cleaning the probe recalibrate the instrument The platinum rings are sustained with glass Take great care while handling the probe gt 75 TROUBLESHOOTING GUIDE Slow response excessive Dirty pH electrode Soak the electrode tip in HI 7061 cleaning solution for 30 minutes Refill with fill solution Reading fluctuates up and Clogged dirty junction Clean the electrode see down noise Low electrolyte level above refillable electrodes Refill with fresh electrolyte only refillable electrodes only EC probe not properly Insert the probe connected Display shows blinking Reading out of range Check that sample is within full scale value measurable range Check electrolyte level and general electrode status Recalibrate the meter Check the range is not fixed or locked mV scale out of range Dry membrane or dry Soak electrode in 70300 junction storage solution for at least 30 minutes Display shows 4 symbol Out of order or missing Replace temperature probe in front of temperature temperature probe or check the connect
68. ure Coeff 1 30 Temperature Ref APC Modify Press Modify in order to set the temperature coefficient Temperature Coef I5 Accept Use the ARROW keys to change the value Press Accept to confirm or ESC to exit without changing Temperature Reference Focus on the Temperature Ref item Cell Constant Temperature Temperature Ref Temperature Unit Press the corresponding functional key to select the desired reference temperature 54 This feature allows the user to log pH Rel mV ISE EC TDS NaCl or Resistivity measurements All logged data can be transterred to a PC through the USB port The logging space includes 400 records of Log on demand and 600 records of Log interval lot logging The log interval is organized in lots A maximum of 100 lots are accepted One lot can occupy all the memory space available LOGGING THE CURRENT DATA To store the current reading into memory press Log while in measurement mode AutoEnd The instrument will display for few seconds the record number and the amount of the free log space Ifthe LOG space is full the Log space is full message will be displayed for few seconds when Log key is pressed Enter View Logged Data Mode and delete records in order fo tree log space LOT LOGGING Select the desired interval in SETUP as a timed interval or AutoEnd waits for a stable value before logging Lot 1 Rec 1 Free 99 Sk pla q Press the
69. with built in amplifier combination pH electrode Use very high humidity 1 mm a 1 10 mm 4 3 oN Y 0 1413B Glass body single junction flat tip Viscolene non refillable combination pH electrode Use surface measurement 12 mm 0 5 110 mm gt l 4 3 ORP ELECTRODES HI 3131B Glass body refillable combination platinum ORP electrode Use titration 1 EI 150 5 9 oN HI 3230B Plastic body PES gel filled combination platinum ORP electrode Use general purpose 12 mm 0 5 i 120 mm po 4 7 HI 4430B Plastic body PES gel filled combination gold ORP electrode 3 3 Use general purpose 0 5 ao 120 ra 4 7 Consult the Hanna General Catalog for a complete and wide selection of electrodes 8 EXTENSION CABLE FOR SCREW TYPE ELECTRODES SCREW TO BNC ADAPTER 7855 1 Extension cable 1 m 3 3 long 7855 3 Extension cable 3 m 9 97 long HI 7855 SERIES CABLE CONNECTORS CONNECTOR AND 3 0 mm 0 12 CABLE WITH BNC CONNECT TO CONNECT TO THE SCREW TYPE m BNC SOCKET ELECTRODES OF THE METER OTHER ACCESSORIES HI 740157 Plastic electrode refilling pipet 20 pcs 76404 Electrode holder HI7662 T Stainless steel Temperature probe with 1 m 3 3 screened cable
70. with the temperature read from the sensor inside the EC probe Range Select Focus on the Range Select item Out of Cal Range Warning T Compensation Auton atic Range Select Automatic Cell Constant 1 000 Modify Press Modify to select ranging mode Range Select Automatic Use the ARROW keys to change selection Press Accept to confirm or ESC to exit without saving If Automatic is selected the instrument changes the range automatically according with the input If one of the range is selected all the readings are displayed on the corresponding range The readings will be displayed with maximum 6 digits If the reading exceeds the maximum number of digits for the fixed range the maximum value is displayed blinking Note The Range Select parameter can be set only in EC resistivity and TDS range Cell constant Focus on the Cell Constant item Fange Select Automatic Cell Constant 1 000 Temperature Coef Temperature Ref Modify Press Modify to change the cell constant value 53 Accept Use ARROW keys to change the cell constant value Press Accept to confirm or ESC to exit without changing Note If the cell constant value is modified the EC slope calibration is deleted and the NaCl calibration is deleted If performed the EC offset calibration remains active Temperature Coefficient Focus on the Temperature Coef item Fange Select Automatic Cell Constant 0 850 Temperat
71. zm td ir m 1331B Glass body semimicro single junction refillable combination pH electrode Use flasks 7 mm HI 1230B Plastic body PES double junction gel filled combination pH electrode Use general field 12 mm 0 5 NN 120 mm 4 7 HI 2031 Glass body semimicro conic refillable combination pH electrode Use semisolid products 6 mm 0 25 mm o 2 95 19 HI 1332B Plastic body PES double junction refillable combination pH electrode Use general purpose FC 00 Plastic body PVDF double junction refillable combination pH electrode Use general purpose for food industry 7 1 ree es l 120 mm 4 7 oN Y FC 200B Plastic body PVDF open junction conic Viscolene non refillable combination pH electrode Use meat amp cheese 6 mm a Af rom 75 mm FC 210B Glass body double junction conic Viscolene non refillable combination pH electrode Use milk yogurt 12 mm 0 5 afere m 120 mm 47 V FC 220B Glass body triple ceramic single junction refillable combination pH electrode Use food processing 9 5mm DIA 12 mm 0 37 NC d 1 ajea D la 120 mm 47 80 FC 911B Plastic body PVDF double junction refillable

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