HI 98192 - Hanna Instruments
Contents
1. Press Stage 1 to start with first stage evaluation Press Stage 2 to start with second stage evaluation If Stage 1 is pressed a tutorial screen is displayed Stage 1 The USP 645 gt Stage 1 is an on line validation method The result is achiewed by comparing the value of Use the Arrow keys to scroll the tutorial message Press Continue to skip the tutorial message and enter EC measuring mode USP 5tage 1 BS USP Fact 100 Tref 25 0 C If the temperature source is manual entry press USP Fact to select USP factor to be changed the is displayed before the 100 value To increase the accuracy of the analysis decrease the USP factor value Wait until reading is stable If the sample reading meets the USP Stage 1 criteria the USP Met message will be displayed USPIStage 1 004 USP Fact 100 USP Het Tref 25 0 Press Report view report USP Report Stage 1 USP Met EC 0 0415 25 070 USF Fact 100 200602704 10 17 24 2 Press Log to store USP Stage 1 report Record 6 Free 387 The report number and the amount of free log space in is displayed for several seconds Note If the log space is full enter view logged data mode by pressing RCL key and free log space by deleting previously stored records If the sample reading didn t meet the USP Stage 1 criteria the USP Not Met2. Mon DD i Enalish O Press the displayed functional key to enable disable key When enabled beep sounds as a short beep every time a key is pressed or when the calibration icon can be confirmed A long beep alert that the pressed key is not active or a wrong condition is detected while in calibration Instrument ID Highlight nstrument ID Enalish Modify Press Modify Instrument ID 0000 Use ARROW keys change the instrument ID Press Accept to confirm or ESC to exit without saving 4 Baud Rate Highlight Baud Rate Press Modify Use ARROW keys to select the desired communication baud Press Accept to confirm or ESC to exit Meter information Highlight Meter Information Press Select The meter information is displayed Firmware version Language version mV and temperature factory calibration time date Battery capacity 195188 Meter Info Firmware 10 1 Language 2 1 EC 2006 03 02 14 45 15 T 2006 03 02 14 46 41 Battery Capacity Td 42 RANGE SPECIFIC PARAMETERS Calibration Timeout Highlight Calibration Timeout elect Profile Calibration Timeout 1 day ut of cal range check kl Temperature Source Probe Modify Press Modify oF oF Calibration Timeout Calibration Timeout Disabled r days Use ARROW keys to set desired value Press Accept to confirm or ESC to ret
3. the water meets the requirements of the test for conductivity If the conductivity is greater than 2 1 proceed with Stage 3 Stage 3 Determine the combined effect of the CO and pH Use a Hanna Instruments pH meter Take care that the instrument is calibrated in at least two points using pH 4 01 and pH 7 01 Hanna buffers Perform the following test within approximately 5 minutes of the conductivity determination while maintaining the sample temperature at 25 1 Add the Saturated KCI Solution to the sample 0 3 mL per 100 mL of the test specimen and determine the pH to the nearest 0 1 pH unit Press Stage 3 key then enter the corresponding pH reading Referring to the Stage 3 pH and conductivity requirement table the instrument determines the conductivity limit at the measured pH value If the measured conductivity is no greater than the conductivity requirements for the pH determined the water meets the requirements of the test for conductivity If the measured conductivity is greater than this value or the pH is outside of the range of 5 0 to 7 0 the water does not meet the requirements of the test for conductivity Stage 3 pH and conductivity requirements For atmosphere and temperature equilibrated samples only Conductivity uS cm 20 USP MODE PROCEDURES Press Mode key while in EC range to enter USP mode The instrument will display USP on the main screen 0 040 i Tref 25 0 C
4. Calibration Press the corresponding functional key to enter EC user calibration e Probe replatinization Temperature user calibration From Salinity range Calibration Press the corresponding functional key to enter Salinity user calibration Temperature user calibration 25 EC CALIBRATION It is recommended to calibrate the instrument frequently especially if high accuracy is required The EC range should be recalibrated Whenever the EC electrode is replaced At least once a week Before USP measurement After testing aggressive chemicals When calibration alarm time out is expired CAL DUE blinks if feature is enabled in SETUP If Outside Cal Range message blinks 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 98192 instrument offers a choice of 7 memorized standards 0 00 pS 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 a calibration in maximum allowed points However at least a two point calibration is suggested offset calibration in 0 00 uS and one in any other calibration standard The instrument will automatically recognize the standards and skip the standard used d
5. 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 tag blinking e When an abnormal condition in the RTC is detected the instrument forces the Expired Calibration status 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 33 The instrument will display a lot of data including calibration standards offset time and date etc ask EC Calibration Std ate 2006 03 02 Offset ime 14 58 37 20 005 al Exp 1 day E Coe 1 305 70 Use the ARROW keys to select the offset or calibration standards in order to view new information To see more information press More More information regarding offset D e Qard2 14 50 43 0 99985 comp ref 25 C More information regarding standards 00603202 14 58 37 ell Constant 0 972 comp ref 25 C Notes Standards displayed in video inverse mode are from previous calibrations No user calibration message is displayed if all calibrations are cleared or the instrument was not calibrated in the EC range LAST NaCl CALIBRATION DATA Last NaCl calibration data is stored automatically after a successful calibration To vie
6. the number of calibration point 1 char For each calibration point the standard value 10 chars offset factor or cell constant with sign and decimal point e time when was calibrated 12 chars salinity calibration e calibration time 12 chars salinity coefficient 10 chars PRFxx Request profile xx information The answer string contains 10 EC range 58 PAR 11 Resistivity range 12 TDS range 13 USP range 14 NaCl range 15 Salinity Seawater range 16 Salinity Seawater PSU range Creation time 12 chars Temperature source 1 char 0 probe 1 manual entry e Temperature compensation 0 NOTC 1 linear TC 2 non linear TC e Beep status 1 char 0 off 1 on e Temperature unit 1 char 0 C 1 F e Backlight 2 chars e Contrast 2 chars Auto light off 3 chars Auto power off 3 chars Baud rate 5 chars Instrument ID 4 chars EC alarm time out interval 2 chars NaCl alarm time out interval 2 chars Logging interval 5 chars e Calibration range check 1 char 0 off 1 on e TDS factor 6 chars Temperature coefficient 6 chars Reference temperature 6 chars e Cable correction resistor 5 chars e Cable correction capacitance 4 chars EC fixed range number 1 char Resistivity fixed range number 1 char TDS fixed range number 1 char Language ID 3 chars ell Constant 7 chars Requests the setup parameters setting
7. 3 Stage 1 EC 3 63905 USF Fact 100 Iz Cell 1 000 Press PgDown or PgUp to scroll the record screens Record ID 3 Record ID 3 Stage 2 kage 3 USP Hat 3 639 p5 5 dpH USF Fack 100 USF Fack 100 Kell 1 000 Fale Falp 49 This feature allows the user to log up to 1000 readings All logged data can be transferred to PC through USB port The memory space is organized in lots of records A lot can contain from 1 to 1000 records The maximum available lots number is 100 START AUTOLOG Set the desired logging interval in the Setup menu If 5 10 30 s or 1 min interval is selected the Auto Power Off feature is disabled each sample stored restarts the Auto Power off counter For other intervals the instrument will enter a sleeping mode During this mode the instrument continues to monitor the inputs and memorize the reading at the set interval To exit sleeping mode simply press any key exception ON OFF Note While in sleeping mode the instrument cannot be powered off by pressing ON OFF key Leave sleeping mode and then press ON OFF key to power off the instrument To start autolog from the measurement screen press StartLog key The lot number and the amount of memory space is displayed for several seconds 13 33 44 EC 5270 Lote Record 1 Free 114 Lock If the autolog space is full or the lots number exceeds 100 the Auto log space full message is displaye
8. REPLACEMENT sire e denti rad n 63 TROUBLESHOOTING GUIDE nnn 64 PROBE MAINTENANCE tntnnnnnnnnnnnnnnnnnnnnnnnn 65 66 PRELIMINARY EXAMINATION Remove the instrument from the packing material and examine it carefully 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 e HI 763133 4 ring probe with temperature sensor 4 m cable e HI 7031M 1413 uS cm calibration standard 230 ml e HI 7035M 111 8 mS cm calibration standard 230 ml e HI 92000 PC software e HI 920015 Micro USB cable 100 ml Plastic Beaker 2 pcs e 4x 1 5 V AA Batteries e Instruction Manual Rugged carrying case 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 supplied accessories GENERAL DESCRIPTION The HI 98192 instrument is state of the art heavy duty conductivity meter designed to provide laboratory results and accuracy under harsh industrial conditions The USP standard compliance makes the instrument useful for pure water determination It is provided with a series of new diagnostic features which add an entirely new dimension to the measurement of conductivity by allowing the user to dramatically improve the reliabil
9. T 35 15 1 t 1 0031 10 T 6 9698 107 T 1 104259 104T 2 00564 107 T 6 766097 10 R R_ 10 R R 1 0 T 15 0 96 7 72 0R 37 3R 0 63 0 21R T 15 0 0 08996 28 2929729R 12 808328 10 67869R3 5 98624R4 1 32311R where coefficient C sample uncompensated conductivity at T C 35 15 42 914 mS cm the corresponding conductivity of KCI solution containing a mass of 32 4356 g KCl 1 Kg solution temperature compensation polynom Note The formula can be applied for temperatures between 10 C and 31 C To access this range press Mode while in Salinity range until the seawater scale SW is displayed ppt Linear 2436 Tref 25 0 RutoEnd Practical salinity scale This is a practical scale based on the precise measurement of the electrical conductivity of a solution with a known salinity range The relationship derived from the scale relates salinity conductivity temperature and pressure and use a solution with a salinity of 35 o as datum point This is taken to have a conductivity of 42 914 mS cm of 15 C at standard atmospheric pressure According to the definition salinity of a sample in PSU practical salinity units is calculated using the following formula _ l G5 15 4 1 0031 10 T 6 9698 107 T 1 104259 10 T 2 00564 107 T 6 766097 107 su Ya n HO YS el rt e 1 T 15 1 0 0162 T 15
10. The answer string contains Number of profiles 2 chars e Current profile ID 2 chars Number of languages 2 chars 59 NSLx ULS LLS GLDxxx Requests the number of logged samples The command parameter 1 char the request is for EC range R the request is for Resistivity range T the request is for TDS range e N the requests is for NaCl range e U the requests is for USP range The answer string is the number of samples 4 chars Requests information about the status of the USP log reports The answer string contains The number of reports 3 chars For every USP report the following information are sent Report ID 3 chars og time 12 chars Requests information about the number of lots The answer string contains The number of lots 3 chars For every lot the following information are sent e Lot ID 3 chars og time 12 chars Lot type 1 char 0 EC 1 Resistivity 2 TDS 3 NaCl Requests all the records for the lot with ID xxx The answer string contains Lot header data Logging interval 1 s 5 chars Temperature source 1 char Temperature compensation mode 1 char Reference temperature 2 chars Temperature coefficient 6 chars e Offset factor 6 chars TDS factor 6 chars only for TDS lots e Salinity coefficient 7 chars only for salinity lots e Profile ID 4 chars e Profile creation time 12 chars Lot start time 12 chars 60 Lot
11. coefficient C sample uncompensated conductivity at T C 35 15 42 914 mS cm the corresponding conductivity of KCI solution containing a mass of 32 4356 g KCl 1 Kg solution temperature compensation polynom 0 008 b 0 0005 0 1692 0 0056 25 3851 b 0 0066 a a a a 14 0941 b 0 0375 a a C 0 1 2 3 7 0261 b 0 0636 2 7081 b 0 0144 0 008 0 0005 4 5 0 X 400 Y 100R F I T 15 1 0 0162 1 15 Notes The formula can be applied for salinity values between 0 and 42 PSU The formula can be applied for temperatures between 2 C and 35 C To reach this range press Mode while in Salinity range until the practical salinity scale PSU is displayed Notes e If the meter displays the top of the range blinking the reading is out of range e If the stability indicator 2 blinks the reading is unstable e Make sure the meter is calibrated before taking measurements e f measurements are taken successively in different samples for accurate readings it is recommended to rinse the probe thoroughly with deionized water before immersing it into the samples TDS reading is obtained by multiplying the EC reading by the TDS factor which has a default value of 0 50 It is possible to change the TDS factor in the 0 40 to 1 00 range by entering SETUP mode The probes designed to work with this instrument have an internal ID identification Every
12. 763123 Platinum 4 ring Conductivity TDS probe with internal temperature sensor and 1 m 3 3 cable HI 763133 4 ring Conductivity TDS probe with internal temperature sensor and 4 m 13 1 cable 92000 Windows compatible software application HI 920015 Micro USB cable 66 RECOMMENDATIONS FOR USERS Before using these products make sure they are entirely suitable for the environment in which they are to be used Operation of these instruments in residential areas could cause unacceptable 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 use these instruments when voltages at the measurement surface exceed 24 Vac or 60 Vcc To avoid damage or burns do not perform any measurement in microwave ovens Hanna Instruments reserves the right to modify the design construction or appearance of its products without advance notice IB HNNNN instruments Hanna Instruments Inc Highland Industrial Park 584 Park East Drive Woonsocket RI 02895 USA Technical Support
13. HHI CAL GLP NL liquid Crystal Display LCD FI F2 functional keys A keys to manually increase decrease the parameters or to scroll between the parameter list ON OFF key to turn the instrument ON and OFF LIGHT key to toggle display backlighting GLP key to display Good Laboratory Practice information 7 CAL key to enter exit calibration mode SETUP key to enter exit SETUP mode RCL key to enter exit view logged data mode 0 MODE key to toggle between EC USP and Salinity ranges 1 RANGE key to switch between EC Resistivity TDS NaCl 2 HELP key to enter exit contextual help 3 ESC to leave current mode exit calibration setup help etc 5 TOP VIEW e o o Ilo oo oo te 14 Electrode DIN connector 15 USB connector SPECIFICATIONS 0 to 400 mS cm shows values up to 1000 mS cm Actual conductivity 1000 mS cm 0 001 to 9 999 LiS cm 10 00 to 99 99 LiS cm 100 0 to 999 9 LiS cm 1 000 to 9 999 mS cm EC 10 00 to 99 99 mS em 100 0 to 1000 0 mS cm autoranging 0 001 uiS cm 0 01 uS m 0 1 uS m 0 001 mS cm 0 01 mS cm 0 1 mS cm 1 of reading 0 01 jiS cm or 1 digit whichever greater 0 1 d rr T ohms 0 01 Kohms 0 1 Kohms 1 Kohms 0 01 d rr dl Mohms 1 1 of reading 10 ohms or 1 digit whichever greater 1 of reading
14. available Linear Temperature Compensation The conductivity of a solution with a specific electrolyte concentration changes with temperature The relationship of the change in conductivity as a function of temperature is described by a solution s temperature coefficient This coefficient varies with each solution and is user selectable see SETUP mode 25470 Tref 25 06 The conductivity of natural water shows strong non linear temperature behavior A polynomial relationship is used to improve the accuracy of the calculated results Note Conductivity measurements of natural water can only be performed at temperatures ranging from 0 to 36 C Otherwise the Out T range message will be displayed blinking No Temperature Compensation No TC The temperature shown on the LCD is not taken into account F250 E Tref 250 C To select the desired option enter Setup menu see page 35 If the temperature is out of the 20 C 120 C range the instrument will do no temperature compensation CONDUCTIVITY VERSUS TEMPERATURE CHART The conductivity of an aqueous solution is the 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 te
15. contains e Meter mode 2 chars e xx 10 EC range xx 11 Resistivity range e yx 12 TDS range yx 13 USP range xx 14 NaCl range 5 Salinity Seawater range 16 Salinity PSU range 57 Meter status 2 chars of status byte represents a 8 bit hexadecimal encoding 0x10 temperature probe is connected x20 autolog in progress x01 new GLP data available e 0x02 new SETUP parameter 0x04 out of calibration range x08 the meter is in autoend point mode x30 the instrument is in fixed range Reading status 2 chars R in range O over range U under range First character corresponds to the primary reading Second character corresponds secondary reading Primary reading corresponding to the selected range 10 ASCII chars including sign decimal point and unit Secondary reading only when primary reading is not EC 10 ASCII chars including sign decimal point and unit if primary reading is not conductivity Temperature reading 8 ASCII chars with sign decimal point always in C MDR Requests the instrument model name and firmware code 16 ASCII chars GLPxx Requests the calibration data record for xx profile number The answer string contains GLP status 1 char represents a 4 bit hexadecimal encoding x01 EC calibration available 0x02 NaCl calibration available calibration data if available which contains e calibration time 12 chars
16. message is displayed Press ESC to return to the USP main screen Press Report to view USP report USP Mot Met EC 2 0105 20 C Fact 100 PONE OS04 10 18 42 Press Log to store the Stage 1 report Press Stage 2 to enter USP Stage 2 mode The USP Stage 2 tutorial screen is displayed The 5 lt 649 gt Stage 2 is an offline validation method Follow the nest steps Sample 100 mL ar more Use the Arrow keys to scroll the tutorial message Press Continue to skip the tutorial message and enter USP Stage 2 measuring mode 1973 250 E Tref 25 07C 22 Wait until the reading is stable about 5 minutes Note If the input record has an instability higher than 1 mS stability period will be reset The completion time bar will remain empty The USP Met message will be displayed if the USP Stage 2 criteria is reached UsP 5tage 2 mj 2010 n HaTC F250 USP Met Tref 25 07C Press Report to view the USP report USP Report Stage 2 USP Met 2 0105 25 0 USF Fact 100 0060304 10 19 19 Press gt key to scroll the report screens Press Log to store report Notes The report number will be the same as at the Stage 1 report informations of the same analysis f the log space is full enter view logged data mode by pressing RCL key and free log space by deleting previously stored records The USP N
17. noise EC probe not properly connected Ensure the probe is connected to the meter Check that the probe is immersed in your sample Display shows the top of the range reading blinking Reading out of range Recalibrate the meter Check the sample is within the measurable range Check the range is not fixed or locked Meter fails to calibrate or gives faulty readings Broken EC probe Replace the probe At startup the meter displays Hanna Logo tags permanently One of the keys is blocked Contact your dealer at any Hanna Instruments Service Center Meter shuts off Dead accumulators Auto Power Off feature is enabled in this case meter shuts off affer selected period of non use Recharge accumulators or replace accumulator Press ON OFF Error message at start Up Internal error Contact your dealer at any Hanna Instruments Service Center The instrument does nof start when pressing ON OFF Initialization error Press and hold down ON OFF for about 20 sec or disconnect and then connect one accumulator 64 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 a 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
18. point was confirmed 55 Data transmission 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 in accordance with the model 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 lt R gt where lt command prefix gt is a selectable 16 ASCII character lt command gt is the command code Note Either lowercase or capital letters can be used SIMPLE COMMANDS KF Is equivalent to pressing functional key 1 KF2 Is equivalent to pressing functional key 2 KF3 Is equivalent to pressing functional key 3 RNG Is equivalent to pressing RANGE MOD _Is equivalent to pressing MODE CAL 15 equivalent to pressing CAL U
19. values and returns to normal measurement mode FOUR THREE or TWO POINT CALIBRATION e Proceed as described in FIVE POINT CALIBRATION section e Press CAL or ESC after the appropriate accepted calibration point The instruments will return to measurement mode and will store the calibration data ERROR SCREENS Wrong standard alibration EC 84 00 Shd 3 1 413m5 5 Wrong The calibration cannot be confirmed The EC reading is not within range of the selected standard Select another standard using the AR ROW keys CLEAR CALIBRATION Press Clear functional key when displayed to clear old calibrations Calibration EC E 4992 2 Std 940085 All old calibrations will then be cleared and the instrument continues calibration The points confirmed in current calibration are kept Note If Clear calibration is invoked during the first calibration point the instrument returns to measurement mode 30 REPLACE CALIBRATION STANDARD Each time a standard is confirmed the new calibration parameters replace the old calibration parameters of the corresponding standard If the current standard has no correspondence in the existing stored calibration structure and this is not full the current standard is added to the existing stored calibration up to 5 standards If the existing stored calibration is full five calibration points after confirming the calibration point th
20. 10 ohms or 1 digit whichever greater 10 ohms or 1 digit whichever greater 0 00 to 99 99 ppm 100 0 to 999 9 ppm Range 1 000 to 9 999 g L 105 10 00 to 99 99 g L 100 0 to 400 0 g L autoranging of m 0 05 ppm or 1 digi adie greater 1 0 to 99 9 ohms 100 to 999 ohms 1 00 to 9 99 Kohms Range 10 0 to 99 9 Kohms Resistivity 100 to 999 Kohms 1 00 to 9 99 Mohms 10 0 to 100 0 Mohms autoranging The 0 001 uS cm EC range and 0 1 MOhms Resistivity range are not available with the 4 m cable probe p le NaCl 0 0 to 400 0 Seawater scale 0 00 to 80 00 ppt Salinity Practical salinity 0 01 to 42 00 PSU 0 1 0 01 20 0 to 120 0 C 4 0 to 248 0 F Temperature 0 1 C 0 1 F 0 2 C 0 4 F excluding probe error Automatic up to five points with seven memorized standards 0 00 EC Calibration US cm 84 0 uS cm 1 413 mS cm 5 00 mS cm 12 88 mS cm 80 0 mS cm 111 8 mS cm Cell Constant Setup Constant Cell Constant Setup 0 010 to 10 000 Max one point only in range with HI 7073 standard NaCl Calibration ice din use conductivity calibration for other ranges Implemented Standards USP compliant EC Probe HI 763133 8 pin DIN 4m cable Lot Loggin 5 10 30 sec i 1 2 5 10 15 30 60 120 180 min max 1000 samples 0 to 50 C 32 to 122 F max RH 100 IP 67 OPERATIONAL GUIDE INITIAL PREPARATION The instrument is supplied complete with batteries See Batteri
21. 25 C 1 30 Manual Fixed Range Hone The profile information includes the date and the time when the profile was added information about calibration on EC and NaCl range the setup cell constant information about temperature setting reference temperature temperature compensation mode temperature coefficient temperature source and information about fixed ranges If calibration exists the GLP functional key is displayed Press GLP EC to view the corresponding GLP EC information Press GLP NaCl to view the corresponding GLP NaCl information Note If the EC or NaCl calibration was not performed while the current profile is set or calibration was cleared the corresponding GLP key is not displayed 37 Press Delete to delete selected profile The Delete key is displayed only if more than one profile is in the list Press Accept to confirm the deletion or Cancel to cancel and return to the previous screen Press ESC to return to profile list screen Logging Interval Highlight Logging interval Temperature Ref C 25 Temperature Unit E Logging interwal Disabled Modify Press Modify Logging interval cm Disabled Use the ARROW keys to select the logging interval If Disabled option is selected the Autolog feature is disabled and Log on demand is enabled Press Accept to confirm the value Press ESC to exit without saving Backlight Highlight Backlight Temperatu
22. Instruction Manual HI 98192 USP Compliant EC TDS NaCl Resistivity Temperature Meter W HI 98192 H m s S MN LL IANS instruments www hannainst com Dear Customer Thank you for choosing a Hanna Instruments product Please read this instruction manual carefully before using the instrument This manual will provide you with the necessary information for correct use of the instrument as well as a precise idea of its versatility T 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 HI 98192 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 from 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 obtain a Returned Goods Autho
23. PC Is equivalent to pressing the UP arrow key DWC Is equivalent to pressing the DOWN arrow key RCL 15 equivalent to pressing RCL SET 15 equivalent to pressing SETUP CLR 15 equivalent to pressing CLR OFF 15 equivalent to pressing OFF 56 CHR xx Change the instrument range according with the parameter value xx e x 10 EC range e 11 Resistivity range e yx 12 TDS range e 13 USP range xx 14 NaCl 96 range x 15 Salinity Seawater range x 16 Salinity PSU range The instrument will answer for these commands with lt SIX gt answer ED where lt STX gt is 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 command AN is 24 ASCII code character corrupted command COMMANDS REQUIRING AN ANSWER The instrument will answer for these commands with SIX answer lt checksum gt lt ETX gt 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 to send a complete set of readings in according with the current range and temperature readings or EC range e Resistivity EC and temperature readings on Resistivity e TDS EC and temperature readings on TDS range Salinity EC and temperature or Salinity range The answer string
24. Range Select Highlight Range Select emperature Source Probe Compensation ck Automatic 44 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 and Resistivity range Cell Constant Highlight Constant Autom atic 1 000 1 30 Use ARROW Keys to change the cell constant value Press Accept to confirm or ESC to exit without changing Out of Calibration Range Warning Highlight Out of Cal Range Warning Custom Buffers ieu Calibration Points bal ut of Cal Range Warning Temperature Unit Press the displayed functional key in order to change option If enabled the Out Cal Range message will be displayed if the EC reading is not within the calibration range 45 Temperature Coefficient Highlight Temperature Coet Belup ELC Range Select Rutamatic ell Constant 1 000 Temperature Caef 1 90 emperature Ref 25 Modify Pr
25. a if exist EC reading 8 chars EC unit 1 char Temperature reading in C e Stage 2 data if exists same as Stage 1 Stage 3 data if exists e pH value 5 chars e USP factor 3 chars e Cell Constant 1 char Note Err3 is sent if record does not exist Err4 is sent if the identification range character is not recognized Err5 is sent if autolog is in progress Err is sent if the request range is not available Err7 is sent if the instrument is logging Err8 is sent if the instrument is not in the measuring mode Err9 is sent if the battery low condition is detected and the communication cannot be done 62 BATTERIES REPLACEMENT To replace the batteries follow the next steps Turn OFF the instrument e Open the battery compartment by removing the four screws from the back of the instrument Remove the old batteries Insert four new 1 5V M batteries in the battery compartment while paying attention the correct polarity lose the battery compartment using the four screws If the battery capacity is less than 20 the serial communication and the backlight feature are not available Note The instrument is provided with the BEPS Battery Error Prevention System feature which automatically turns the instrument off when the battery level is too low to ensure reliable readings 63 TROUBLESHOOTING GUIDE SYMPTOMS PROBLEM SOLUTION Reading fluctuates up and down
26. ange parameters Calibr Number of days after Disable 1 to 7 days Disable Timeout Calibration warning EC NaCl is displayed Out cal Display warning ifthe Enable Disable Disable range check reading is too far from the EC range calibration points only Temperature Temperature Probe Manual Probe source entry mode Temperature No TC Linear No TC compensation Non Linear mode Range select one Automatic Fix one Automatic specific range resolution of EC or resistivity range Cell Constant Manual set of 0 010 to 10 000 1 000 the cell constant Temperature Set the coefficient 0 00 to 10 00 C 1 00 C Coefficient for linear temperature compensation Temperature Reference temperature 15 C 20 C 25 25 C Ref Temperature unit C or F C TDS factor 0 40 to 1 00 0 50 36 GENERAL PARAMETER SCREENS Select Profile Highlight Select Profile Select Profile Calibration Timeout Disabled ut of cal range check Temperature Source Probe Press Select The list with stored profiles is displayed Select Profile 1 20060101 01 14 26 z 2100601201 15 43 37 E 2006 01 01 15 50 29 d 200601403 03 05 54 Select View Press Add to add a new profile to the list max 10 Use the ARROW keys to highlight the desired profile Press Select to select the profile and exit to SETUP Press View to view profile information rofile 4 ECT 2006 01 04 10 33 38 CRL Salt EC KEall 1 000 T
27. d Auto Log space is full Lock VIEW AUTOLOG DATA Press RCL key to enter View Logged Data mode type 50 Press AutoLog to enter the automatic log range selection Logged range Conductivity range Resistivity range TOS range Salinity range Use ARROW keys to highlight the desired range then press View The list of lots corresponding to the selected range is displayed If no data were logged on the current range the instruments will display No Records Use ARROW keys to scroll the lot list Press Delete or Delete All to delete one or all of the lots The confirmation is asked as at individual records are deleted Press More to view more information 64 66 5 102 64 66 p5 17 03 42 64 66 p 17 03 47 Hore 0 PB The list of records for the specific lot is displayed Press More to view the complete record information Press PgDown or PgUp to scroll the information screens 5 To freeze the first stable reading on the LCD press AutoEnd while the instrument is in measurement mode mp The Wait symbol will blink until the reading is stable When the reading is stable Hold icon will be displayed Press Continue in order to enter continuous reading mode 52 TEMPERATURE CALIBRATION for technical personnel only All the instruments are factory calibrated for temperature Hanna s temperature probes are i
28. e instrument will ask which buffer will be replaced by current standard Calibration EC 173 TIE zh Replace Shd z B BTE Press ARROW keys to select another standard to be replaced Press CFM to confirm the standard that will be replaced Press CAL or ESC to leave replace mode In this case the standard will not be stored Note The replaced standard is not removed from calibration list and it can be selected for the next calibration points NaCl CALIBRATION NaCl calibration is a one point procedure in 100 0 NaCl solution Use the HI 7037L calibration solution seawater solution as a 100 NaCl standard solution To enter NaCl calibration select the Salinity 96 range and press CAL The instrument enters the Salinity calibration screen e Press Salt The measured NaCl the temperature and the 100 NaCl standard are displayed Calibration e Rinse the probe with some of the calibration solution or deionized water Immerse the probe into HI 7037L solution Tap the probe repeatedly to remove any air bubbles that may be trapped inside the sleeve The 8 tag will blink on the LCD until the reading is stable When the reading is stable the CFM functional key is displayed 3 Press CFM to confirm calibration Calibration Hatl Std The instrument returns to measurement mode Notes 25 0 Wrong Std 100 0 f the uncalibrated reading is too far f
29. es Replacement for details page 63 To prepare the instrument for field measurements close the serial communication socket with proper stopper fo ensure waterproof protection Connect the EC probe to the DIN connector on the top of the instrument Tighten the thread ring Make sure the probe sleeve is properly inserted Turn the instrument ON by pressing ON OFF key At start up the display will show the Hanna logo for a few seconds followed by the percentage indication of the remaining battery life and the Loading Log message then enters the measurement mode Loading Log T The Auto Power Off feature turns the instrument off after a set period default 30 min with no button pressed to save battery life To set another period or to disable this feature see SETUP menu on page 35 The instrument continues to monitor the inputs and memorize readings if the automatic logging is enabled and started To stop autologging press StopLog key or simply power off the instrument by pressing the ON OFF key The Auto Light Off backlight feature turns the backlight off after a set period default min with no buttons pressed To set another period or to disable this feature see SETUP menu on page 35 MEASUREMENTS Immerse the probe 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 pre
30. ess Modify in order to set the temperature coefficient emperature Coef 1 90 Use the ARROW keys to change the value Press Accept to confirm or ESC to exit without changing Temperature Reference Highlight Temperature Ref C ell Constant 1 000 emperature Caef 1 90 Temperature Ref PC 25 emperature Unit 3E Press the corresponding functional key to select the desired reference temperature Temperature Unit Highlight Temperature Unit emper ature Caef 1 3 emperature Rer C 25 Temperature Unit e o9ging interval Press the displayed functional key in order to change the temperature unit 46 LOG ON DEMAND This feature allows the user to log up to 400 readings All logged data can be transferred to a PC through the USB port using HI 92000 application LOGGING THE CURRENT DATA To store the current reading into memory press LOG while in mea The instrument will display the record number and the amount of after the LOG option is selected Linear 249 If the log space is full the Log space is full message will be d key is invoked 6 460 7 25 2 Log space full Lock surement mode free log space for several seconds isplayed for few seconds when Log Enter View Logged Data mode and delete records in order to free log space VIEW LOG ON DEMAND DATA Press RCL to enter View Logged Data mode Au
31. for Customers Tel 800 426 6287 Fax 401 765 7575 E mail tech hannainst com www hannainst com Local Sales and Customer Service Office Printed in ROMANIA MAN98192 11 14
32. 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 several seconds Calibration EC 6341 25076 Std 84 0075 If necessary press the ARROW keys to select a different standard value The 8 tag will blink on the LCD When the reading is stable and within range of the selected standard the CFM functional key is displayed Calibration EC Press CFM to confirm calibration The calibrated value and the third expected standard value will be displayed E 8400 51 3 1 413m5 5 After the second calibration point is confirmed immerse the EC electrode into the third standard solution and stir gently Tap the probe repeatedly to remove any air bubbles that may be trapped inside the sleeve Calibration EC x 1735 77 543 21 412m The instrument will automatically detect the standard value 4736 543 5 00015 If necessary press the ARROW keys select a different standard value The 8 tag will blink on the LCD until the reading is stable When the reading is stable and within range of the selected standard the CFM functional key is displayed Calibration EC 4736 7 25 0 51 3 5 00015 Press CFM to confirm calibration The calibrated val
33. is displayed Temperature E 09 Paink 1 10 C within range of the selected ca Temperature 09 1 100 53 ibration point the CFM functional Press CFM to confirm The second expected calibrated point is displayed Paints 50 070 Immerse the probe into the second vessel as close as possible to the reference thermometer Allow a few seconds for the probe to stabilize emperature 22 Points 504070 Use the ARROW keys to set the calibration point value to that measured by the reference thermometer Temperature E 29 Paint FEIC When the reading is stable and within range of the selected calibration point CFM functional key is displayed Temperature 29 Point 25470 Press CFM to confirm The instrument returns to measurement mode 54 Note If the reading is not within range of the selected calibration point or the difference between first selected point and second selected point is less than 25 C Wrong message will blink Temperature 22 Wrong 2 25 C e Ifthe Wrong source is the difference between calibration points increase the temperature of the vessel with hot water e If the Wrong source is the temperature reading change the probe and restart calibration If calibration cannot be performed contact Hanna Service For one point calibration press ESC after first
34. ity of the measurement e 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 calibration EC calibration up to five calibration points Messages on the graphic LCD for an easy and accurate calibration e Diagnostic features to alert the user when the electrode needs cleaning e User selectable Outside Calibration Range warning e User selectable calibration time out to remind when a new calibration is necessary Moreover they offer an extended temperature range from 20 to 120 C 4 to 248 F using temperature sensor inside EC electrode This instrument can also measure in Resistivity TDS and Salinity ranges Three salinity modes are available NaCl Practical salinity and Natural seawater scale Other features include Temperature source selection Temperature automatic compensation linear or non linear user selectable Temperature reference selection 15 C 20 C or 25 C Temperature coefficient set Log on demand up to 400 samples Auto Log feature up to 1000 records Auto Hold feature to freeze first stable reading on the LCD Lock and user setup Fixed range selection GLP feature to view last calibration data for EC NaCl Probe change recognition PC interface Probe replatinization FUNCTIONAL DESCRIPTION FRONT VIEW i 23 9 C Out of calibration range E S Oe e
35. mperature 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 buffers HI7030 HI7031 HI7033 HI7034 HI7035 HI7039 HI8030 HI8031 HI8033 HI8034 HI8035 HI8039 uS m uS m uS cm uS cm uS cm 65400 74100 83200 92500 94400 96300 98200 100200 102100 104000 105900 107900 109800 111800 113800 115700 117700 119700 121800 123900 USP MEASUREMENT Pharmaceutical laboratories working in the US market are obliged to respect the regulations set down by the US Pharmacopoeia USP The 5 supplement of USP24 NF19 lays down the rules for checking the quality of pure or fully deionized water used for the production of injection products The conductivity of water provides information on its chemical composition It is therefore logical that conductivity is the main parameter fo measure The conductivity of water is a measure of the ion mobility through this water The conductivity partly depends on the pH the temperature and the amount of atmospheric carbon dioxide which has been dissolved in water to form ions intrinsic conductivity The conductivity also depends on the chloride sodium and ammonium ions initially present in water extraneous conductivity The conductivity intrinsic and extraneous of the water is measured at Stage 1 and compared
36. nterchangeable and no temperature calibration is needed when they are replaced If the temperature measurements are inaccurate temperature recalibration should be performed For an accurate recalibration contact your dealer or the nearest Hanna Customer Service Center or follow the instructions below Press T functional key to enter the temperature calibration mode while in EC or Salinity calibration screens It is better to perform a 2 point calibration The calibration can be performed in any two points that have at least 25 C distance between It is recommended that the first point be near 0 C and the second point near 50 C 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 Connect the HI 763133 EC probe with built in temperature sensor to the appropriate socket Immerse the HI 763133 probe into the vessel with ice and water as dose as possible to the reference thermometer Allow a few seconds for the probe to stabilize Temperature oC Faint 1 OO C Use the ARROW keys to set the calibration point value to that of ice and water mixture measured by the reference thermometer Set the calibration point value to that measured in the reference thermometer When the reading is stable and key
37. ot Met message is displayed if the USP Stage 2 criteria is not met USPIStage 2 zl 4027 5 3 MoTC 25 0 C USP Not Met Tref 25 0 C Press Report fo view report USP Report Stage 2 USP Hat Het EC 4005 5 250 C USP Fact 100 2006 03 04 14 37 45 Stage 3 Press key to scroll the report screens Press Log to store report Press Stage 3 to enter in Stage 3 water analysis The USP Stage 3 tutorial is displayed Stage 4 The USP Stage 3 required steps are Add 0 3 mL of Kcl for each 100 mL of Water sample used in Stage 23 Press Continue to enter USP Stage 3 analysis The instrument will display the sample pH setting mode b D Select Sample pH Use a calibrated pH meter to read the pH value of the sample Use ARROW keys to set the value to that displayed on the pH meter Press Accept to confirm the pH setting The USP Stage 3 report will be displayed USP Met The report will include all stages information Press key to scroll the report pages Press Log to store the report Press ESC to return to USP main screen Notes The Stage report will include the information about Stage 1 and Stage 2 f the log space is full enter view logged data mode by pressing RCL key and free log space by deleting previously stored records 24 USER CALIBRATION To enter User Calibration screen press CAL key while in EC or Salinity range From EC range
38. re Unit Logging interval Disabled Backlight Contrast Highlight Contrast Disabled 2 Press Modify Use keys to change contrast then press Accept to confirm Press ESC to leave without changing Auto Light Off Highlight Auto Light Off Press 5 10 or 30 to change settings Press one of the functional keys to change the option Auto Power Off Highlight Auto Power Off Press Modify 39 Press ARROW keys to select internal interval then press Accept Press ESC to leave without changing Date Time Highlight Date Time Press Modify TUA EDDT301 17 13 29 11 Use lt gt keys to select item Use ARROW keys to change focused values Press Accept to confirm new setting or ESC to leave without changing Time Format Highlight Time Format 30 10 10 07 Time Format 24 hours Mon DD rrr Press functional key to change the option Date Format Highlight Date Format 10 10 27 24 hours Han 00 40 Language Highlight Language 24 hours Date Format OC Y AM Oo Language English Use the desired functional key to change the option Wait until new language is loaded If any language can be loaded the instrument will work in safe mode In this mode all messages are displayed in English and Help is not available Beep On Highlight Beep On
39. record data EC value 8 chars EC unit 1 char 0 uS 1 mS EC over range flag 1 char R U 0 Temperature reading in C 8 chars Next data is sent if the lot is not for EC range Resistivity or TDS or Salinity 8 chars Reading unit Over range flag 1 char Resistivity 0 ohm 1 Kohm 2 Mohm e TDS 0 ppm 1 g L e Salinity 0 96 1 ppt 2 PSU LODxxx Requests the log information for record number xxx on range r e t is E for EC R for resistivity T for TDS and N for salinity The answering string contains The logged range 2 chars 10 EC 11 Resistivity 12 TDS 13 USP 14 NaCl 15 Salinity Seawater 16 Salinity PSU For EC Resistivity TDS and salinity ranges EC reading 8 chars EC unit 1 char Temperature source 1 char Temperature compensation mode 1 char Reference temperature 2 chars Temperature coefficient 6 chars ell Constant 7 chars e The nearest calibration standard 7 chars e The calibration standard unit 1 char e Offset factor 6 chars Temperature reading 8 chars e Resistivity or TDS or salinity reading 8 chars Unit 1 char e TDS factor 6 chars or salinity coefficient 7 chars og time 12 chars 6 For USP records e Record ID 3 chars e Stage 1 status 1 char 0 not verified 1 USP met 2 USP not met e Stage 2 status 1 char see Stage 1 e Stage 3 status 1 char see Stage 1 Stage 1 dat
40. rings are sustained with glass Take great care while handling the probe o REPLATINIZATION The coating of platinum black on the electrodes of the conductivity cell should be inspected before and after use for signs of flaking or loss of material If the coating seems poor cleaning and replatinization is required To perform probe replatinization enter calibration screen from EC range by pressing CAL key Calibration Probe replatinization Put the EC probe in the replatinization solution Press Start 110 Put the probe into a beaker with replatinization solution and press Start Probe replatinization z 3tmin zaec The process can be interrupted by pressing Stop or ESC key 65 The replatinization process takes about 5 minutes Probe replatinization Completed aes Remove the probe from the replatinization solution and rinse it with deionized water EC CALIBRATION SOLUTIONS HI 70033C 84 uS cm 20 ml sachet 25 pcs HI 70031C 1413 uS cm 20 ml sachet 25 pcs 70039C 5000 uS cm 20 ml sachet 25 pcs 70030C 12880 uS cm 20 ml sachet 25 pcs HI 6033 84 uS cm 500 ml bottle HI 6031 1413 uS cm 500 ml bottle HI7039L 5000 uS cm 500 ml bottle HI7030L 12880 uS cm 500 ml bottle HI 7034L 80000 uS cm 500 ml bottle HI7035L 111800 uS cm 500 ml bottle 7037L 10096 NaCl 500 ml bottle HI
41. rization number from the Technical Service department and then send it with shipping costs prepaid When shipping any instrument make sure it is properly packed for complete protection All rights are reserved Reproduction in whole or in part is prohibited without the written consent of the copyright owner Hanna Instruments Inc Woonsocket Rhode Island 02895 USA TABLE OF CONTENTS NUR NY cord usnm DERE E 2 PRELIMINARY EXAMINATION nnnm 3 GENERAL DESCRIPTION ona tte caa 4 FUNCTIONAL DESCRIPTION i sei LER eR RS artius 5 diu PUDE 7 OPERATIONAL GUIDE ois y AUTORANGING sede ttn eer eter 14 TEMPERATURE COMPENSATION entes 15 CONDUCTIVITY VERSUS TEMPERATURE 16 USP MEASUREMENT 17 USP MODE PROCEDURES 21 USER CALIBRATION Rao sta ti Mean 25 ECCAMBRABII S inb Ga EE 26 GOOD LABORATORY PRACTICE 1 33 DI MM 35 LOG ON DEMANBO 6s ato du Rao ia fan rae 47 L CERRO PPP SES 50 Ato Enie hi ordre aftu die Rata A i ibi 52 TEMPERATURE CALIBRATION for technical personnel 53 POITIER ENCE oc scena Esas 56 BATTERIES
42. rom the expected value calibration is not recognized The Wrong message will be displayed 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 32 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 EC and NaCl calibration is stored for the user to review when necessary EXPIRED CALIBRATION The instrument is provided with a real time clock RTC in order to monitor the time elapsed since the last EC NaCI calibration The real time clock is reset every time the instrument is calibrated and the Expired Calibration status is triggered when the instrument detects a calibration time out The CAL DUE tag 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 35 from 1 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 after 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
43. ss RANGE repeatedly until the desired range EC Resistivity TDS Salinity is selected on the LCD Allow for the reading to stabilize The main LCD line displays the measurement in the selected range while the temperature is displayed on the lower LCD line 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 13 52 12 EL Tref 25 0 Note The symbol in front of the temperature reading means that the temperature can be entered by the user Manual option selected in SETUP or temperature out of range 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 dissolved solids value using the TDS factor AutoEnd Salinity The salinity is derived from the conductivity of a sample Salt range The percent of salinity in a sample is dependent on the sample and the salinity coefficient For practical reasons the salinity of a solution is derived from the salinity of the seawater Two methods of calculating the salinity from the conductivity are supported Natural seawater scale e Practical salinity scale Natural seawater scale UNESCO 1966 According to the definition salinity of a sample in ppt is calculated using the following formula _ C sample
44. time the instrument detects probe changing it reminds the user to update the cell constant of the new probe being used and to calibrate in the appropriate EC range 12 02 52 EL Tm Different probe type Update cell constant Calibrate EC range Fress ESC to con oo AUTORANGING The EC Resistivity and TDS scales are autoranging The meter automatically sets the scale with the highest possible resolution By pressing Lock the autoranging feature is disabled and the current range is frozen on the LCD 14 12 34 EC 0 879 Range Locked 243 uk of cal range Tref 25 0 C The Range Locked message is displayed To restore the autoranging option press AutoRng functional key again The autoranging 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 A maximum of 6 digits can be displayed The top of the fixed range is displayed blinking when the reading exceeds this value To disable fixed range mode enter SETUP and select autoranging mode Note Autoranging is automatically restored if the range is changed if the calibration mode is entered or if the meter is turned off and back on again TEMPERATURE COMPENSATION Two selectable temparature sources are available reading directly from the sensor inside the probe or manual entry Three options of compensating temperature are
45. to values listed in a table to evaluate if the studied water is suitable or not for use in pharmaceutical applications If the sample fails Stage 1 additional tests have to be performed Stage 2 and 3 in order to determine if the excessive conductivity value is due to intrinsic factors or extraneous ions USP Requirements Automatic temperature correction must not be used Instrument specifications Minimum resolution of 0 1 5 on the lowest range Excluding the cell accuracy the instrument accuracy must be 0 1 Meter calibration It is accomplished by replacing the conductivity cell with precision resolution traceable to primary standards accurate to 3 0 1 of the stated value or an equivalently accurate resistance device Cell calibration Meter conductivity must be measured accurately using calibrated instrumentation The conductivity cell constant must be known in 2 96 Before starting water analysis calibrate in the lowest EC range or set the probe cell constant enter the value written in the calibration certificate delivered with the probe Stage 1 Determine the temperature and conductivity of the water e Rinse the probe carefully with deionized water Check that the 4 rings sleeve holes and the temperature sensor are immersed in the sample and that no air bubbles are trapped Connect the probe to the meter enter USP mode and press the Stage 1 key The instrument will perform a temperature and conductivi
46. toLog Press Man Log to enter the log on demand range selection Use ARROW keys to highlight the desired range then press View The list of records corresponding to the selected range is displayed 1 64 6605 2 5 2006 03 02 Delete All Delete If no data were logged on the current range the instrument will display No Records message Use ARROW keys to scroll between the records from the list Press Delete All to enter Delete All screen Press Delete to enter Delete records screen Press More to view more information of the selected record If More is pressed SrerComp Hanual HaTE Use Pg Up or PgDown keys to toggle the complete information screens Use ARROW keys to scroll between stored records If Delete is pressed elete Record 20060118 200601018 6 06 2006 0118 4 EUG 2006 0118 Use ARROW key to select the record to be deleted and then press CFM Press ESC to exit If Delete All is pressed the instrument asks for confirmation Press CFM to confirm or ESC to exit without deleting For USP range the instrument will display the sample ID analysis time and date EC Date 1 6466 pS S006 05002 2 T436ps 20060302 Delete All Delete 48 Use ARROW keys to select the desired record Press Delete to enter delete one record mode Press Delete All to enter delete all mode Press More to view the complete record information Record ID
47. ty measurement using a non temperature corrected conductivity reading Using the Stage 1 temperature and conductivity requirement table the corresponding conductivity limit at that temperature is determined e Ifthe measured conductivity is not greater than the table value the water meets the requirements of the test for conductivity If the conductivity is higher than the table value proceed with Stage 2 Stage 1 table Temperature and conductivity requirements for the non temperature compensated conductivity measurements only Values from USP NF Fifth Supplement Temperature Conductivity 96 uS cm Physical Tests Water Conductivity 645 3465 3467 18 Stage 2 Determine the influence of CO Note Stability criteria lt 0 5 min corresponds in fact to a change in conductivity lt 0 02 uS cm per minute equivalent to 0 1 mS cm per 5 minutes as required in the Stage 2 USP document e Transfer a sufficient amount of water 100 mL or more to a thermostatic vessel and stir the test specimen Adjust the temperature and maintain it at 25 1 C We recommend using a thermostatic bath e Rinse the cell carefully with deionized water Place the conductivity probe in the sample and dip it in the thermostatic vessel containing the sample Check that the 4 rings and sleeve holes are immersed in the solution Press Step 2 When the conductivity value is stable if the conductivity is not greater than 2 1
48. ue and the fourth expected standard value will be displayed Calibration EC 5000 77 25 0 Shd 4 1 413 5 28 After the third calibration point is confirmed immerse the EC electrode into the fourth standard solution and stir gently Tap the probe repeatedly to remove any air bubbles that may be trapped inside the sleeve E 9027 5 4 1 413 5 The instrument will automatically detect the standard value Calibration EC 8030 5 4 If necessary press the ARROW keys to select a different standard value The 8 tag will blink on the LCD until the reading is stable When the reading is stable and within range of the selected standard the CFM functional key is displayed Calibration EC Press CFM fo confirm calibration 250 C 5 5 1413m5 The calibrated value and the fourth expected standard will be displayed After the fourth calibration point is confirmed immerse the EC electrode into the fifth standard solution and stir gently Calibration EC 1i40 f necessary press the ARROW keys to select a different standard value The 8 tag will blink on the LCD until the reading is stable When the reading is stable and within range of the selected standard the CFM functional key is displayed Calibration EC e Press CFM to confirm calibration e The instrument stores the calibration
49. uring calibration If a five point calibration is performed one of the points must be 0 0 uS offset 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 Remove the protective cap and rinse the electrode with some of the standard solution to be used for the first calibration point FIVE POINT CALIBRATION e t is recommended to perform the first point calibration as offset calibration Jap 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 From EC range press CAL to enter calibration screen 26 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 0 00025 54 1 If necessary press the ARROW keys to select a different standard value The 8 tag will blink on the LCD until the reading is stable When the reading is stable and within range of the selected buffer CFM functional key is displayed Calibration EC Press CFM to confirm first point The calibrated value and the second expected standard value is then displayed on the LCD Calibration EC 0 000 250 C 5 2 84 00 After the first calibration point
50. urn 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 check Highlight Out of cal range check Calibration Timeout 1 day Qut of cal range check Temperature Source Probe 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 43 Temperature Source Highlight Temperature Source 5etup EC Cir Calibration Timeout 1 dau uk af cal range check Temperature Source Probe IT Compensation Linear Manual Press the displayed functional key in order to change the option Select Probe in order to take the temperature automatically with the temperature sensor inside the electrode Select Manual in order to set the temperature using the ARROW keys Temperature Compensation Highlight T Compensation ut of cal range check Temperature Source Probe T Compensation Linear Range Select HaTE Press one of the selected functional keys to change the option Select No TC in order to display actual conductivity no temperature compensation Select Linear in order to automatically compensate conductivity using the set temperature coefficient Select Non Linear temperature compensation for natural water measurements using the natural water compensation equation
51. w the NaCl calibration data press GLP key while in NaCl measurement mode The instrument will display the NaCl information calibration date time and offset ask HaCl Calibration ate 2006 03 02 ime 15 03 55 al Exp 1 day Fackor 0 982 34 SETUP mode allows viewing and modifying the measurement parameters These are general SETUP parameters for all the ranges and range specific parameters The following table lists the general SETUP parameters their valid range and the factory default settings Select profile Add View or select a profile Log interval Time for automatic 5 10 30s Disabled logging 1 2 5 10 15 30 60 120 180 min Log on demand Backlight Backlight level 0107 4 Contrast Contrast level 0 to 20 10 Auto Light Off Time until backlight Disabled 1 is ON 1 5 10 30 min Auto Power Off Time after the instrument Disabled 30 is powered OFF 5 10 30 60 min Date Time 01 01 2006 to 12 31 2099 01 01 2006 00 00 to 23 59 Time Format or 24 hours 24 hours Date Format DD MM AYYYY YYY MM DD MNVDD YYYY YWY MN DD YYYY MM DD Mon DD YYYY DD Mon YYYY YYYY Mon DD Language Message display language Up to 3 languages English 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 Meter Displays general information information 35 The following table lists the specific r
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