YSI Model 30 and 30M Operations Manual
Contents
1. During calibration calculated cell constant is lt K 4 9 8 Main Display reads rErr N User has selected manual ranging amp sample exceeds selected range 9 Main Display reads PErr O Incorrect sequence of key strokes YSL Incorporated Model 30 30M In all cases check calibration values and procedure check Advanced Setup settings If each of these is set correctly return system for service A Recalibrate instrument using known good conductivity standard B Follow cell cleaning procedure see section 8 Maintenance K Use the mode key to select a higher or lower manual range or to set system to Autoranging A Refer to manual section which provides step by step procedures for the function you are attempting 27 Troubleshooting 10 Main Display reads LErr A In specific conductance mode temperature exceeds the values computed using user defined temperature coefficient and or reference temperature During calibration temperature exceeds the values computed using user defined temperature coefficient and or reference temperature Main Display reads Err Secondary Display reads ra System has failed its RAM test check procedure 12 Main Display reads Err A Secondary Display reads ro System has failed its ROM test check procedure Secondary Display reads ovr Temperature is gt 95 C Temperature is 5 C Secondary Display read2. 4 Press the ENTER key The word SAVE will flash across the display for a second to indicate that your change has been accepted 5 Press the MODE key to return to normal operation the CAL symbol will disappear from the display See Appendix C for charts of common salt solutions at various temperatures 6 2 CHANGING THE REFERENCE TEMPERATURE Follow these steps to modify the reference temperature of the Model 30 1 Turn the instrument on and wait for 1t to complete its self test procedure 2 Press and release both the DOWN ARROW and MODE keys at the same time CAL symbol The CAL symbol will appear at the bottom left of the display and the large portion of the display will show 1 91 or a value set previously using Advanced Setup 3 Press and release the MODE key the large portion of the display will show 25 0C or a value set previously using Advanced Setup 25 0C 22 7 CAL YSL Incorporated Model 30 30M 16 Advanced Setup Section 6 4 Use the UP ARROW or DOWN ARROW key to change the value to the desired new reference temperature any value between 15 C and 25 C is acceptable 15 0C e 22 7 CAL 5 Press the ENTER key The word SAVE will flash across the display for a second to indicate that your change has been accepted The instrument will automatically return to normal Operation mode 6 3 CHANGING FROM AUTORANGING TO MANUAL RANGING If your application is easier to perform using a manua
3. automatically change to normal operation after completion dOnE y IMPORTANT Data in all 50 site ID s will be erased completely and will be lost forever Do not use the erase function until all recorded data has been transcribed to an archive outside the Model 30M YSI Incorporated Model 30 30M 11 Saving Data Section 4 YSI Incorporated Model 30 30M 12 SECTION 5 CALIBRATION 5 1 BEFORE YOU CALIBRATE IMPORTANT System calibration is rarely required because of the factory calibration of the YSI Model 30 However from time to time it is wise to check the system calibration and make adjustments when necessary Before you calibrate the YSI Model 30 complete the procedures discussed in the Preparing the Meter and Making Measurements sections of this manual To accurately calibrate the YSI Model 30 it is important to remember the following 1 Always use clean properly stored NIST traceable calibrator solutions see Appendix B Accessories and Replacement Parts When filling a calibration container prior to performing the calibration procedures make certain that the level of calibrant buffers is high enough in the container to cover the entire conductivity cell Gently agitate the probe to remove any bubbles in the conductivity cell Rinse the probe with deionized water and wipe dry between changes of calibration solutions During calibration allow the probe time to stabilize with regard to temperature approx
4. decontamination and certification has been completed We will contact the sender for instructions as to the disposition of the equipment Disposition costs will be the responsibility of the sender When service is required either at the user s facility or at YSI the following steps must be taken to insure the safety of our service personnel 1 In a manner appropriate to each device decontaminate all exposed surfaces including any containers 70 isopropyl alcohol or a solution of 1 4 cup bleach to 1 gallon tap water are suitable for most disinfecting Instruments used with waste water may be disinfected with 596 Lysol if this is more convenient to the user 2 The user shall take normal precautions to prevent radioactive contamination and must use appropriate decontamination procedures should exposure occur 3 If exposure has occurred the customer must certify that decontamination has been accomplished and that no radioactivity is detectable by survey equipment 4 Any product being returned to the YSI Repair Center should be packed securely to prevent damage 5 Cleaning must be completed and certified on any product before returning it to YSI YSI Incorporated Model 30 30M 32 Warranty and Repair Section 10 PACKING INSTRUCTIONS 1 Clean and decontaminate items to insure the safety of the handler 2 Complete and include the Cleaning Certificate 3 Place the product in a plastic bag to keep out dirt and packing material
5. has a 100ft cable length and also has internal memory for saving 50 sets of data for later on screen recall It meets CE requirements for EMC Directive 89 336 EEC For simplicity this manual will refer to the Model 30 when discussing functions that apply to both the Model 30 AND the Model 30M References to the Model 30M indicate functions that apply to the Model 30M ONLY YSL Incorporated Model 30 30M 1 Introduction Section 1 YSL Incorporated Model 30 30M 2 SECTION 2 PREPARING THE METER 2 1 UNPACKING When you unpack your new YSI Model 30 Handheld Conductivity Salinity amp Temperature System for the first time check the packing list to make sure you have received everything you should have If there is anything missing or damaged call the dealer from whom you purchased the Model 30 If you do not know which of our authorized dealers sold the system to you call YSI Customer Service at 800 765 4974 or 937 767 7241 and we ll be happy to help you 2 2 WARRANTY CARD Before you do anything else please complete the Warranty Card and return it to YSI This will record your purchase of this quality instrument in our computer system Once your purchase is recorded you will receive prompt efficient service in the event any part of your YSI Model 30 should ever need repair 2 3 BATTERIES There are a few things you must do to prepare your YSI Model 30 for use First locate the six AA size alkaline batteries that were included Use
6. might be correctly reporting the conductivity seen but the reading does not accurately represent the value of the bulk solution Errors will be most serious when low conductivity solutions are contaminated by carry over from high conductivity solutions and can then be of an order of magnitude or more Follow the cleaning instructions carefully before attempting low conductivity measurements with a cell of unknown history or one that has been previously used in higher value solutions An entirely different form of contamination sometimes occurs due to a buildup of foreign material directly on cell electrodes While rare such deposits have on occasion markedly reduced the effectiveness of the electrodes The result is an erroneously low conductance reading Electrical Noise Errors Electrical noise can be a problem in any measurement range but will contribute the most error and be the most difficult to eliminate when operating in the lowest ranges The noise may be either line conducted or radiated or both and may require grounding shielding or both Galvanic and Miscellaneous Effects In addition to the error sources described above there is another class of contributors that can be ignored for all but the most meticulous of laboratory measurements These errors are always small and are generally completely masked by the error budget for cell constant calibration instrument accuracy etc Examples range from parasitic reactances associ
7. or calibration solution and again when you first remove the probe the instrument will go into a range search mode that may take as long as 5 seconds During some range searches the instrument display will flash rANG to indicate its movement from one range to another rANG EEE The length of the range search depends on the number of ranges which must be searched in order to find the correct range for the sample During the range search the instrument will appear to freeze on a given reading for a few seconds then once the range is located will pinpoint the exact reading on the display The display may also switch to 00 0 for a second or two during a range search before it selects the proper range During normal operation the ENTER key UP ARROW key on Model 30M enables and disables the autoranging feature of the instrument We recommend that the instrument always be operated using the autoranging feature See Section 6 Advanced Setup if you need to switch to manual ranging YSL Incorporated Model 30 30M 7 Making Measurements Section 3 3 4 THE BACKLIGHT At times it may be necessary to take measurements with the Model 30 in dark or poorly lit areas To help in this situation the Model 30 comes equipped with a backlight which will illuminate the display so that it can be easily read To activate the backlight press and hold down the LIGHT key The display will remain lit as long as the key is held down When you release it the li
8. see the following page SYMPTOM POSSIBLE CAUSE ACTION Instrument will not turn on Low battery voltage Batteries installed wrong Meter requires service Instrument will not calibrate Incorrect calibration procedure Cell needs cleaning Instrument requires Service 3 Instrument locks up Instrument has received a shock Batteries are low or damaged ns gt laowplo gt System requires service Instrument readings are inaccurate D Calibration is required E Cellis contaminated F Temperature coefficient has been set incorrectly G Reference temperature incorrect H Readings are or are not temperature compensated A Replace batteries B Check battery polarity C Return system for service A See section 5 Calibration B See section 8 Maintenance C Return system for service A Remove battery lid wait 15 seconds for reset replace lid B Replace batteries C Return system for service D See section 5 Calibration E See section 8 Maintenance F See section 6 Advanced Setup G See section 6 Advanced Setup H See section 3 Making Measurements 5 LCD displays LO BAT A Batteries are low or damaged A Replace batteries 6 Main Display reads OVEr I Conductivity Reading is gt 200 mS J Temp Reading is gt 95 C K Temp Reading is lt 5 C Salinity reading is gt 80 ppt M During calibration calculated cell constant is gt K 5 25 7 Main Display reads Undr
9. temperature are output to the display If Specific Conductance is selected the Model 30 uses the temperature and raw conductivity values associated with each determination to generate a specific conductance value compensated to a user selected reference temperature see section 6 Advanced Setup between 15 C and 25 C Additionally the user can select any temperature coefficient from 0 to 4 see Section 6 Advanced Setup Using the Model 30 default reference temperature and temperature coefficient 25 C and 1 91 the calculation is carried out as in equation 1 below Specific Conductance 25 C Conductivity 1 TC T 25 As noted above unless the solution being measured consists of pure KCl in water this temperature compensated value will be somewhat inaccurate but the equation with a value of TC 0 0191 will provide a close approximation for solutions of many common salts such as NaCl and NH4CI and for seawater YSI Incorporated Model 30 30M 21 Principles of Operation Section 7 Salinity is determined automatically from the Model 30 conductivity readings according to algorithms found in Standard Methods for the Examination of Water and Wastewater ed 1995 The use of the Practical Salinity Scale 1978 results in values which are unitless since the measurements are carried out in reference to the conductivity of standard seawater at 15 C However the unitless salinity values are very close to those determined by the prev
10. through the modes as follows Conductivity Specific Salinity Recall Erase all with C Conductance with C with C Model 30M ONLY Model 30M ONLY NOTE When you turn the instrument off it will remember which measurement mode you used last and will return to that mode the next time it is turned on When changing modes carefully observe the small legends at the far right side of the LCD If the instrument is reading Specific Conductance the large numbers on the display will be followed by either a pS or an mS Additionally the small portion of the display will show the C flashing on and off YSL Incorporated Model 30 30M 6 Making Measurements Section 3 PC Not flashing Conductivity C Flashing Specific conductance If the instrument is reading Conductivity the large numbers on the display will be followed by either a uS or an mS Additionally the small portion of the display will show the C NOT flashing If the instrument is reading Salinity the large numbers on the display will be followed by a ppt 3 3 AUTORANGING 8 RANGE SEARCHING The YSI Model 30 is an autoranging instrument This means that regardless of the conductivity or salinity of the solution within the specifications of the instrument all you need to do to get the most accurate reading is to put the probe in the sample This feature makes the Model 30 as simple as possible to operate When you first place the Model 30 probe into a sample
11. unit of resistance OIML Organisation Internationale de M trologie L gale YSL Incorporated Model 30 30M 45 Glossary Appendix E polarization The separation of the positive and negative charges of a molecule by an external agent Pyrex A trademark name for heat resistant and chemical resistant glass reference voltage A closely controlled d c or a c voltage used as a reference SI Syst me International siemens S SI unit of electrical conductance the reciprocal of an ohm equivalent to a mho temperature correction An adjustment made to a measurement to compensate for the difference between the measured and nominal temperatures temperature coefficient The change in any particular physical quantity per degree change in temperature voltage Electromotive force or potential expressed in volts YSL Incorporated Model 30 30M 46 APPENDIX F GENERAL SPECIFICATIONS Probe Operating Environment Medium fresh sea or polluted water and most other liquid solutions Temperature 5 to 95 C Depth 0 to 10 0 to 25 or 0 50 feet depending on cable length 0 100 feet 30M Only Meter Ambient Operating Storage Temperature 10 to 50 C Material ABS Stainless Steel and other materials Dimensions Height 9 5 inches 24 13 cm Thickness 2 2 inches 5 6 cm Width 3 5 inches max 8 89 cm Weight 1 7 pounds w 10 cable 0 77 kg Display 23 W x 1 5 L 5 8 cm W x 3 8 cm L Power 9 VDC 6 AA si
12. 4 Use a large carton preferably the original and surround the product completely with packing material 5 Insure for the replacement value of the product Cleaning Certificate Organization Department Address City State Zip Country Phone Model No of Device Lot Number Contaminant if known Cleaning Agent s used Radioactive Decontamination Certified Answer only if there has been radioactive exposure Yes NO Cleaning Certified By Name Date YSI Incorporated Model 30 30M 33 Warranty and Repair Section 10 YSI Incorporated Model 30 30M 34 APPENDIX A REQUIRED NOTICE The Federal Communications Commission defines this product as a computing device and requires the following notice This equipment generates and uses radio frequency energy and if not installed and used properly may cause interference to radio and television reception There is no guarantee that interference will not occur in a particular installation If this equipment does cause interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures e re orient the receiving antenna relocate the computer with respect to the receiver e move the computer away from the receiver plug the computer into a different outlet so that the computer and receiver are on different branch circuits If ne
13. 4 For most applications the cell constant is automatically determined or confirmed with each deployment of the system when the calibration procedure is followed see section 6 2 Solutions with conductivities of 1 00 10 0 50 0 and 100 0 mS cm which have been prepared in accordance with recommendation 56 1981 of the Organisation Internationale de M trologie Legale OIML are available from YSI The instrument output is in uS cm or mS cm for both conductivity and specific conductance The multiplication of cell constant times conductance is carried out automatically by the software 7 1 TEMPERATURE EFFECT The conductivity of solutions of ionic species is highly dependent on temperature varying as much as 3 for each change of one degree Celsius temperature coefficient 3 C In addition the temperature coefficient itself varies with the nature of the ionic species present Because the exact composition of a natural media is usually not known it is best to report a conductivity at a particular temperature e g 20 2 mS cm at 14 C However in many cases it is also useful to compensate for the temperature dependence in order to determine at a glance if gross changes are occurring in the ionic content of the medium over time For this reason the Model 30 software also allows the user to output conductivity data in either raw or temperature compensated form If Conductivity is selected values of conductivity which are NOT compensated for
14. O REPAIR OR REPLACEMENT OF THE PRODUCT AND THIS SHALL BE YOUR SOLE AND EXCLUSIVE REMEDY FOR ANY DEFECTIVE PRODUCT COVERED BY THIS WARRANTY IN NO EVENT SHALL YSI BELIABLE FOR ANY SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM ANY DEFECTIVE PRODUCT COVERED BY THIS WARRANTY YSI Incorporated Model 30 30M 29 Warranty and Repair Section 10 AUTHORIZED SERVICE CENTERS Please visit www ysi com or contact YSI Technical Support for all authorized service centers both in the United States and internationally YSI Technical Support 1 937 767 7241 800 897 4151 US environmental O ysi com YSI Incorporated Model 30 30M 30 Warranty and Repair Section 10 YSI Incorporated Model 30 30M 31 Warranty and Repair Section 10 CLEANING INSTRUCTIONS NOTE Before they can be serviced equipment exposed to biological radioactive or toxic materials must be cleaned and disinfected Biological contamination is presumed for any instrument probe or other device that has been used with body fluids or tissues or with waste water Radioactive contamination is presumed for any instrument probe or other device that has been used near any radioactive source If an instrument probe or other part is returned or presented for service without a Cleaning Certificate and 1f in our opinion it represents a potential biological or radioactive hazard our service personnel reserve the right to withhold service until appropriate cleaning
15. R pe ete De t pe ERO EO ETE 9 4 2 Recalling Stored Data 43 Erasme Stored Dala canti eet iia Section 5 BEL ECKE RR ETE LD 51 Before You Calibre 2382 reete be etie tede f eee reelle 13 5 2 The Calibration Process et 13 Section 6 Advanced Setup e eee e eee teer ee esee teen ene enata ta enensn eto ss ones esee teta sn enen esa LO 6 1 Charigins The Temperature Coefficient intente sa es 15 6 2 Changing The Reference Temperature eent E entente tene ten eter eter ener nennen tente tenete tete te tenete tene EEs 16 6 3 Changing From Autoranging To Manual Ranging esee tnnt nete nene teen tene nenne 17 Section 7 Principles of Operation ssssssssenensssonsssnsnsnsnssssnenensnsnsnnsnsnsnsnnsssnensnensssnnsnsnensnsnssnsnsnenenssssnsnensnsnnsssnsnsnsnssnsnenensene 2 FA IzrDCSsICTHL m EN 21 7 2 Discussion Of Measurement Errors csscscssssosscscscsscsssessccsscsevsssevsvcssovssesecsrscsesensvvssovsevssosssossessonscnsecsssonssessossovass 22 Section 8 Maintenance AAA O CUE shiessissebesbsisesessasiessens OO 8 1 Cleaning And Storage 8 2 Probe Precautions 4 uias dai ica Section 9 Troubleshooting cccscccsssssccessssssssscesssesssssscsesesessssssesesesssessesesesesessssssesecsssssesesssessesesesecessssesesesssssseseseeel 7 Section 10 Warranty And Repair cosssssonsnensnsnsnssnsnenensssnn
16. The Model 30 has a convenient storage chamber built into the instrument s side This chamber provides an ideal storage area for the probe during transport and extended non use An optional sponge is available from YSI that will fit inside the storage chamber and provide a moist environment for probe storage should your application or operational procedures require it See Appendix B Accessories and Replacement Parts 2 5 HAND STRAP The hand strap is designed to allow comfortable operation of the Model 30 with minimum effort If the hand strap is adjusted correctly it is unlikely that the instrument will be easily dropped or bumped from your hand To adjust the hand strap on the back of the meter unsnap the leather cover and pull the two Velcro strips apart Place your hand between the meter and the strap and adjust the strap length so that your hand is snugly held in place Press the two Velcro strips back together and snap the leather cover back into place 2 6 THE METER CASE The meter case is sealed at the factory and is not intended to be opened except by authorized service technicians Do not attempt to separate the two halves of the meter case as this may damage the instrument break the water proof seal and may void the manufacturer s warranty YSL Incorporated Model 30 30M 4 SECTION 3 MAKING MEASUREMENTS The YSI Model 30 is factory calibrated This means that once you have put batteries in the instrument you are ready t
17. YSI incorporated Pt ttt ty BREE E E MY PU meee so BEBE IEEN YSI Model 30 YSI Model 30M Handheld Salinity Conductivity and Temperature System Operations Manual CONTENTS Section 1 Introduction ERR Y Section 2 Preparing The Meter sueseossssssssnonsnsnsnssnsnsnenssssnsnenensnsnnsssnensnsnsnnsnenensnsnsnssnsnsnsnnssnnsnsnsnssssnsnenssssnsssnsnsnsnssnsneneed 2 1 Unpaid Ene toe tbe teen to E ge 3 2 2 Warranty Card eng ete ea es i a E m ib ad eat roi Ure 3 2 3 Batteries iie cito bibe aliene I pde ee E oU I be eH e e E PM Hiep Eb Pee tri Pee e CHEER eges 3 ZA Storage Chamber iet e tiere tet cei tii dettes peel tete eti rasch eer Eee CREER Pepe 4 2 5 Hand Strap ipe ed eee eed e ME pet ae eiie ee Gp ae edet 4 2 6 The Meter Case eae ra RU ata 4 Section 3 Making Measurements sssscnssssonsnsnsnsnsnssssnsnensnsssnnsnensnsnnsssnensnsnsnnsnsnsnsnsnsssnnsnsnsnnsssnsnsnsnssnsnsnensssnnsnsnsnsnsnssnsneneeD 34 Turning The Instrument On on o E bou e er o optas RR re ederet qeu 3 2 Measurement Modes pt ette he once sauteed EE et te LER eoe pte Reda 3 3 Autoranging amp Range Searching E 34 The B cklhiglit eerte e eee f a Dee a aid E e EH re De e Pedes reped NIE ENDIIPTAIric Y 4 1 Saving Data To Memory sist tee oet e nette et ei ot e bete alante i
18. a screwdriver or a small coin to remove the thumbscrew on the bottom of the instrument This thumbscrew holds the battery chamber cover in place The battery chamber cover is marked with the words OPEN and CLOSE NOTE On some models the battery cover thumbscrew may be unscrewed by hand a screwdriver may not be required Hand strap Battery chamber cover Thumb screw Polarity marking O rings There is a small label inside each of the two battery chamber sleeves These labels illustrate the correct way to install the batteries into each sleeve of the battery chamber YSI Incorporated Model 30 30M 3 Preparing the Meter Section 2 NOTE It is very important that the batteries be installed ONLY as illustrated The instrument will not function if the batteries are installed incorrectly Turn the instrument on by pressing and releasing the ON OFF key on the front of the instrument The liquid crystal display LCD should come on Allow a few seconds for the instrument to complete its diagnostic routine Notice that the instrument will display the specific cell constant of the probe at the completion of its diagnostic routine If the instrument does not operate consult Section 9 Troubleshooting You may also want to take the instrument into a dark room and with the instrument ON hold down the LIGHT key The instrument back light should illuminate the LCD so that the display can be easily read 2 4 STORAGE CHAMBER
19. are using the YSI Model 30 for a process control application which requires that the conductivity readings be compensated to 20 C instead of 25 C this is the section to read Or if your application for the YSI Model 30 involves the measurement of a very specific saline solution the default temperature coefficient may need to be changed to get the very best measurement of that specific salt IMPORTANT There is never a need to enter Advanced Setup Mode unless your special measurement application calls for a change in reference temperature and or temperature coefficient Therefore unless you are certain that your application requires a change to one or both of these criteria do not modify the default reference temperature 25 C or the default temperature coefficient 1 91 6 1 CHANGING THE TEMPERATURE COEFFICIENT Follow these steps to modify the temperature coefficient of the Model 30 Tum the instrument on and wait for it to complete its self test procedure 2 Press and release both the DOWN ARROW and MODE keys at the same time The CAL symbol will appear at the bottom left of the display and the large portion of the display will show 1 91 or a value set previously using Advanced Setup Temperature coefficient CAL symbol 3 Use the UP ARROW or DOWN ARROW key to change the value to the desired new temperature coefficient New temperature coefficient YSL Incorporated Model 30 30M 15 Advanced Setup Section 6
20. ase by the end user against defects in material and workmanship Within the warranty period YSI will repair or replace at 1ts sole discretion free of charge any product that YSI determines to be covered by this warranty To exercise this warranty write or call your local YSI representative or contact YSI Customer Service in Yellow Springs Ohio Send the product and proof of purchase transportation prepaid to the Authorized Service Center selected by YSI Repair or replacement will be made and the product returned transportation prepaid Repaired or replaced products are warranted for the balance of the original warranty period or at least 90 days from date of repair or replacement Limitation of Warranty This Warranty does not apply to any YSI product damage or failure caused by 1 failure to install operate or use the product in accordance with YSI s written instructions ii abuse or misuse of the product iii failure to maintain the product in accordance with YSI s written instructions or standard industry procedure iv any improper repairs to the product v use by you of defective or improper components or parts in servicing or repairing the product or vi modification of the product in any way not expressly authorized by YSI THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE YSP s LIABILITY UNDER THIS WARRANTY IS LIMITED T
21. ated with the solution container and its proximity to external objects to the minor galvanic effects resulting from oxide formation or deposition on electrodes Only trial and error in the actual measurement environment can be suggested as an approach to reduce such errors If the reading does not change as the setup is adjusted errors due to such factors can be considered too small to see YSI Incorporated Model 30 30M 23 Principles of Operation Section 7 YSI Incorporated Model 30 30M 24 SECTION 8 MAINTENANCE 8 1 CLEANING AND STORAGE The single most important requirement for accurate and reproducible results in conductivity measurement is a clean cell A dirty cell will change the conductivity of a solution by contaminating it NOTE ALWAYS RINSE THE CONDUCTIVITY CELL WITH CLEAN WATER AFTER EACH USE To clean the conductivity cell 1 Dip the cell in cleaning solution and agitate for two to three minutes Any one of the foaming acid tile cleaners such as Dow Chemical Bathroom Cleaner will clean the cell adequately When a stronger cleaning preparation is required use a solution of 1 1 isopropyl alcohol and 1 N HCl Remove the cell from the cleaning solution 2 Usethe nylon brush supplied to dislodge any contaminants from inside the electrode chamber 3 Repeat steps one and two until the cell is completely clean Rinse the cell thoroughly in deionized or clean tap water 4 Store the conductivity cell in the meter st
22. ature reading to become stable 7 Move the probe vigorously from side to side to dislodge any air bubbles from the electrodes 8 Press and release both the UP ARROW and DOWN ARROW keys at the same time The CAL symbol will appear at the bottom left of the display to indicate that the instrument is now in Calibration mode Cal symbol 9 Use the UP ARROW or DOWN ARROW key to adjust the reading on the display until it matches the value of the calibration solution you are using Value of calibration solution at 25 C 10 Once the display reads the exact value of the calibration solution being used the instrument will make the appropriate compensation for temperature variation from 25 C press the ENTER key The word SAVE will flash across the display for a second indicating that the calibration has been accepted SAVE NOTE If the up or down arrow keys are not pressed during the calibration process the SAVE message will not be displayed since the calibration value has not changed If an error occurs during calibration see Section 9 Troubleshooting YSI Incorporated Model 30 30M 14 SECTION 6 ADVANCED SETUP The default settings of the YSI Model 30 are appropriate for the vast majority of measurement applications However some measurement applications require very specific measurement criteria For that reason we have made the YSI Model 30 flexible to accommodate these advanced users If for example you
23. cessary the user should consult the dealer or an experienced radio television technician for additional suggestions The user may find the following booklet prepared by the Federal Communications Commission helpful How to Identify and Resolve Radio TV Interference Problems This booklet is available from the U S Government Printing Office Washington D C 20402 Stock No 0004 000 00345 4 YSI Incorporated Model 30 30M 35 Warranty and Repair Section 10 YSI Incorporated Model 30 30M 36 APPENDIX B ACCESSORIES AND REPLACEMENT PARTS The following parts and accessories are available from YSI or any Franchise Dealer authorized by YSI YSL Incorporated Model 30 30M 37 Accessories and Replacement Parts Appendix B YSI Incorporated Model 30 30M 38 APPENDIX C TEMPERATURE CORRECTION This data is for typical applications of the YSI sondes A Potassium Chloride KCI Concentration 1 mole liter Concentration 1 x 10 mole liter TC o 25 7 o 25 Concentration 1 x 10 mole liter Concentration 1 x 10 mole liter TC o 25 7010250 Charts developed by interpolating data from International Critical Tables Vol 6 pp 229 253 McGraw Hill Book Co NY YSL Incorporated Model 30 30M 39 Temperature Coefficient Appendix C B Sodium Chloride NaCl Saturated solutions at all temperatures Concentration 0 5 mole liter FC o 25 7010250 Concentration 1 x 10 mole liter Concentration 1 x 10 mole
24. erted into the liquid deep enough so that the hole on the side of the probe is completely covered by the liquid If possible do not allow the probe to touch any solid object while you are taking readings this may effect the reading slightly Additionally it is important that there not be any air bubbles YSL Incorporated Model 30 30M 5 Making Measurements Section 3 around the probe electrodes To dislodge any bubbles which might have formed move or shake the probe vigorously several times before recording the measurement 3 2 MEASUREMENT MODES The Model 30 has three modes as follows gt Conductivity A measurement of the conductive material in the liquid sample without regard to temperature gt Specific Conductance Also known as temperature compensated conductivity which automatically adjusts the reading to a calculated value which would have been read if the sample had been at 25 C or some other reference temperature which you choose See Section 6 Advanced Setup Salinity A calculation done by the instrument electronics based upon the conductivity and temperature readings Temperature is displayed in conductivity specific conductance and salinity modes The Model 30M has two additional modes gt Recall Allows previously stored data to be displayed gt Erase all Allows ALL previously stored data to be deleted To change between modes simply press and release the MODE key The instrument will cycle
25. f your particular cell Contamination or physical damage to the cell can alter the cell constant Performing a calibration will eliminate any error which might arise because of cell constant change YSI cells are calibrated to within one percent of the stated cell constant at a single point We consider these products to be usefully linear over most instrument ranges The cell constant can be calibrated to 0 35 accuracy with YSI conductivity calibrator solutions Temperature Error 1 maximum The solution temperature error is the product of the temperature coefficient and the temperature offset from 25 C expressed as a percentage of the reading that would have been obtained at 25 C YSL Incorporated Model 30 30M 22 Principles of Operation Section 7 The error is not necessarily a linear function of temperature The statement of error is derived from a 25 C temperature offset and a 3 C temperature coefficient Total Error Considering only the above three factors system accuracy under worst case conditions will be 2 although the actual error will be considerably less if recommended and properly calibrated cells and instrument ranges are used Additional errors which can essentially be eliminated with proper handling are described below Cell Contamination This error is usually due to contamination of the solution being measured which occurs when solution is carried over from the last solution measured Thus the instrument
26. ght goes out to preserve battery life YSI Incorporated Model 30 30M 8 SECTION 4 SAVING DATA The Model 30M is equipped with non volatile memory that is capable of storing up to 50 different sets of readings Non volatile means that you do not need to worry that your data will be lost due to a power failure or interruption such as when the batteries are removed The Model 30M will also assign a site identity number to each set of readings to allow easy review of the data This feature is useful in situations where transcribing data is difficult or not available NOTE The Model 30 is NOT equipped with memory and cannot save data 4 1 SAVING DATA TO MEMORY 1 While any parameter is displayed on the screen press the ENTER key and hold for approximately 2 seconds SAVE 01 The meter will flash SAVE on the display along with the current site identity is being used 2 When all 50 sites are full the display will flash FULL on the screen This message will remain on the screen even after power down until a key is pushed FULL Once you have acknowledged the memory is full any subsequent saved data will begin overwriting existing data starting with site 1 YSL Incorporated Model 30 30M 9 Saving Data Section 4 4 2 RECALLING STORED DATA l 3 4 To put the Model 30M into the RECALL mode press the MODE key until rel is displayed on the screen along with the site ID number in the lower right corner rel 01 Pre
27. imately 60 seconds before proceeding with the calibration process The readings after calibration are only as good as the calibration itself Perform sensor calibration at a temperature as close to 25 C as possible This will minimize any temperature compensation error 5 2 THE CALIBRATION PROCESS System calibration is rarely required because of the factory calibration of the YSI Model 30 However from time to time it is wise to check the system calibration and make adjustments when necessary Follow these steps to perform an accurate calibration of the YSI Model 30 1 2 5 Turn the instrument on and allow it to complete its self test procedure Select a calibration solution which is most similar to the sample you will be measuring e For sea water choose a 50 mS cm conductivity standard YSI Catalog 3169 e For fresh water choose a 1 mS cm conductivity standard YSI Catalog 3167 e For brackish water choose a 10 mS cm conductivity standard YSI Catalog 3168 Place at least 3 inches of solution in a clean glass beaker Insert the probe into the beaker deep enough to completely cover the oval shaped hole on the side of the probe Do not rest the probe on the bottom of the container suspend it above the bottom at least 1 4 inch Press the MODE key until the instrument is reading conductivity or specific conductance YSI Incorporated Model 30 30M 13 Calibration Section 5 6 Allow at least 60 seconds for the temper
28. ional press of the UP ARROW key will cycle the Model 30M to a different manual range until you return again to autoranging Five pushes of the UP ARROW key will cycle the Model 30M through the four manual ranges and return the instrument to autoranging NOTE You may see an error message in some manual ranges if the manual range selected is not adequate for the sample you are measuring rErr S Range error ue message 24 8 YSL Incorporated Model 30 30M 18 Advanced Setup Section 6 If this happens simply press and release the UP ARROW key until a range is selected which is suitable for your sample Note that the instrument will always default to autoranging when first turned on The four ranges of the YSI Model 30 are 0 to 499 9 uS cm 0 to 4999 uS cm 0 to 49 99 mS cm 0 to 200 0 mS cm YSL Incorporated Model 30 30M 19 Advanced Setup Section 6 YSL Incorporated Model 30 30M 20 SECTION 7 PRINCIPLES OF OPERATION The Model 30 utilizes a cell with four pure nickel electrodes for the measurement of solution conductance Two of the electrodes are current driven and two are used to measure the voltage drop The measured voltage drop is then converted into a conductance value in milliSiemens millimhos To convert this value to a conductivity value in milliSiemens per cm mS cm the conductance is multiplied by the cell constant which has units of reciprocal cm cm The cell constant for the Model 30 conductivity cell is 5 0 cm
29. iously used method where the mass of dissolved salts in a given mass of water parts per thousand was reported Hence the designation ppt is reported by the instrument to provide a more conventional output For further information on conductivity and the above standard information refer to the ASTM document Standard Methods of Test for Electrical Conductivity of Water and Industrial Wastewater ASTM Designation D1125 82 and OIML Recommendation Number 56 ASTM symbols for conductivity cell constant and path length differ from those preferred in the general literature and also from those used in this manual 7 2 DISCUSSION OF MEASUREMENT ERRORS System accuracy for conductivity measurements is equal to the sum of the errors contributed by the environment and the various components of the measurement setup These include Instrument accuracy Cell constant error Solution temperature offset Cell contamination including air bubbles Electrical noise Galvanic effects Only the first three are of major concern for typical measurements although the user should also be careful to see that cells are clean and maintained in good condition at all times Instrument Accuracy 5 maximum The accuracy specified for the range being used is the worst case instrument error Cell Constant Error 5 maximum Although YSI cells are warranted to be accurate to within one percent you should still determine the exact cell constant o
30. l range which you select the YSI Model 30 and Model 30M allow you to turn off the default autoranging feature Follow the instructions for your model as shown below Model 30 While you are making conductivity or specific conductance measurements with the Model 30 simply press and release the ENTER key to select manual ranging Each additional press of the ENTER key will cycle the Model 30 to a different manual range until you return again to autoranging Five pushes of the ENTER key will cycle the Model 30 through the four manual ranges and return the instrument to autoranging NOTE You may see an error message in some manual ranges if the manual range selected is not adequate for the sample you are measuring YSI Incorporated Model 30 30M 17 Advanced Setup Section 6 rErr ns 24 8 If this happens simply press and release the ENTER key until a range is selected which is suitable for your sample If you get lost and don t know if you re in a manual range or autoranging simply turn the instrument off and back on The instrument will always default to autoranging when first turned on Model 30M While you are making conductivity or specific conductance measurements with the Model 30M simply press and release the UP ARROW key to select manual ranging Note that the conductivity units will flash on the Model 30M to indicate that the instrument is in a manual range 30M ONLY Flashing nits indicate manual Each addit
31. liter FC o 25 77610250 0 5 77 1 83 0 0 632 1 87 5 6 65 1 88 5 0 731 1 92 10 7 58 1 92 10 0 836 1 97 15 8 57 1 96 15 0 948 2 01 20 9 60 1 99 20 1 064 2 05 25 10 66 2 02 25 1 186 2 09 30 11 75 2 04 30 1 312 2 12 35 12 86 2 06 35 1 442 2 16 375 13 42 2 07 375 1 508 2 17 40 13 99 2 08 40 1 575 2 19 45 15 14 2 10 45 1 711 2 21 50 16 30 2 12 50 1 850 2 24 Concentration 1 x 10 mole liter mS cm C to 25 C Charts developed by interpolating data from the CRC Handbook of Chemistry and Physics 42nd ed p 2606 The Chemical Rubber Company Cleveland YSL Incorporated Model 30 30M 40 Temperature Coefficient Appendix C C Lithium Chloride LiCl 17010250 77010250 0 39 85 1 82 0 5 07 1 87 5 46 01 1 85 5 5 98 1 85 10 52 42 1 89 10 6 87 1 85 15 59 07 1 92 15 7 75 1 85 20 65 97 1 95 20 8 62 1 85 25 73 10 1 98 25 9 50 1 86 30 80 47 2 02 30 10 40 1 88 35 88 08 2 05 35 11 31 1 91 37 5 91 97 2 07 37 5 11 78 1 92 40 95 92 2 08 40 12 26 1 94 45 103 99 2 11 45 13 26 1 98 50 112 30 2 15 50 14 30 2 02 Concentration 1 x 10 mole liter Concentration 1 x 10 mole liter mS cm I C to 25 C mS cm I C to 25 C Concentration 1 x 10 mole liter Concentration 1 x 10 mole liter TEC o 29 7610250 Charts developed by interpolating data from the CRC Handbook of Chemistry and Physics 42nd ed p 2606 The Chemical Rubber Company Cleveland Charts developed by interpolating data from International C
32. o begin taking readings immediately The following diagram is an overview of the operation of the Model 30 and 30M Note the difference in key strokes between some of the 30 and 30M functions See the following pages for details of operation Conductivity Salinity reading Temperature reading Press both for calibration ir Specific ee A ccr e ui PSI e qud donee 30M Change manual range Press both to change reference temperature or coefficient 30 Change manual range 3OM Hold 2 seconds to SAVE data 3 1 TURNING THE INSTRUMENT ON Once the batteries are installed correctly press the ON OFF key The instrument will activate all segments of the display for a few seconds which will be followed by a self test procedure which will last for several more seconds During this power on self test sequence the instrument s microprocessor is verifying that the instrument is working properly and will display the cell constant of the probe when the self test is complete If the instrument were to detect a problem a continuous error message would be displayed See Section 9 Troubleshooting for a list of error messages After the self test procedure is complete the temperature will be displayed in the lower right of the display and the instrument is ready to make a measurement Simply insert the probe into the liquid sample about which you would like to receive information It is important that the probe be ins
33. orage chamber 8 2 PROBE PRECAUTIONS Observe the following precautions to ensure accurate repeatable results 1 The cell must be clean before making any measurements When working with substances having low conductivity extraordinary cleanliness may be required 2 Suspend the cell in the solution deep enough to submerge the vent hole The electrode chamber should be free of trapped air You may need to tap the probe gently to dislodge any air bubbles 3 Ideally the cell should be at least inch away from any other object including the sides or bottom of the solution container YSL Incorporated Model 30 30M 25 Maintainence Section 8 4 Stirring may be necessary for highest accuracy measurements especially in low conductivity solutions 5 If possible isolate from ground potential the container or system in which measurements are to be made 6 Hlectrical fields and stray currents caused by stirrer motors heaters etc can interfere with measurements The user should determine the effects of these and make the necessary corrections either by shielding or by disconnecting those units that cause trouble 7 Always rinse the cell carefully before transferring it from one solution to another 8 Never store a dirty or contaminated cell YSL Incorporated Model 30 30M 26 SECTION 9 TROUBLESHOOTING The following is a list of error codes for the Model 30 and Model 30M The Model 30M also has additional error codes
34. ritical Tables Vol 6 pp 229 253 McGraw Hill Book Co NY YSI Incorporated Model 30 30M 41 Temperature Coefficient Appendix C E Ammonium Chloride NH CI Concentration 1 mole liter Concentration 1 x 10 mole liter 10250 7610250 Concentration 1 x 10 mole liter WCT 0 Charts developed by interpolating data from the CRC Handbook of Chemistry and Physics 42nd ed p 2606 The Chemical Rubber Company Cleveland YSI Incorporated Model 30 30M 42 APPENDIX D CONVERSION CHART Degrees Celsius Degrees Fahrenheit 9 5x C 32 Degrees Fahrenheit Degrees Celsius 5 9x F 32 Milligrams per liter mg l Parts per million ppm Multiply by 1 YSL Incorporated Model 30 30M 43 Conversion Chart Appendix D YSI Incorporated Model 30 30M 44 APPENDIX E GLOSSARY ampere A SI unit of electric current amplitude The maximum deviation of an alternating current from its average value during its cycle ASTM American Society for Testing and Materials calibrate To determine check or rectify the graduation of any instrument giving quantitative measurements calibrator solution A solution of known value used to calibrate capacitance C The ratio of the total charge on an isolated conductor to its potential the property of being able to collect a charge of electricity C 2 Q V capacitor An electrical component able to accumulate and hold an electric charge cell constant K The ratio of
35. s udr Temperature jumper is set to F and reading is 2199 9 F but lt 203 F Secondary Display reads rEr The Model 30M has additional error codes as follows SYMPTOM POSSIBLE CAUSE A Meter is in recall mode 1 Readings on main display don t change 2 Main Display reads nOnE A During recall no data is currently stored in memory YSL Incorporated Model 30 30M Section 9 SYMPTOM POSSIBLE CAUSE ACTION A amp B Adjust user defined DPrilianw PIN vu gt gt p gt A A temperature coefficient and or reference temperature See section 6 Advanced Setup Turn instrument OFF and back ON Return the system for service Turn instrument OFF and back ON Return the system for service Read solution of lower temperature Return system for service Replace Probe Cable assy Read solution of higher temperature Return system for service Replace Probe Cable assy Set jumper to read C Return system for service ACTION Press MODE key to return to Normal Operation Store data before attempting to recall 28 Warranty and Repair Section 10 SECTION 10 WARRANTY AND REPAIR YSI Model 30 Salinity Conductivity and Temperature Meters are warranted for two years from date of purchase by the end user against defects in materials and workmanship YSI Model 30 probes and cables are warranted for one year from date of purch
36. snensnsnsnnnnsnsnsnsnssnsnnnensssnnsnsnsnsnsnsnnsnsnenssssnsnenssssnsnsnensnnnssnsnsnennene 29 Appendix A Required NotiC ocomomommmmmmmmmm s Appendix B Accessories And Replacement Parts ssssssssnsssnensnensnensnsnsnsnsnsnsssnnsnnssnnnsnsnensnensnensnsnsnsnsnsnsnsnsssnsssnssnnnne D Appendix C Temperature Correction Data ooomoooomonmonmesmmmmsmmmmmmrmrmrmrmrmrmmmmmmrmrrrr OD Appendix D Conversion Chart ususssssssssssssssssssssorssnsssnsnensnensnsnsnsnnnsnsnsnsssnnssnssnsssnsssnsnensnsnsnensnsnensnsnsnsnsnsnsnsnsssnsssnsnnnnn AD Appendix E Glossary AAA A 4 Appendix F General Specifications ussessssnsssnsnsnsnsnsssssssnnsnsnsnsnensnensnsnsnensnsnnnnsnsnnnssunssnnssnnsnnnsnsnsnsnsnsnensnsnsnsnsnsnsnsnsnsnene 7 ii SECTION 1 INTRODUCTION The YSI Model 30 Handheld Salinity Conductivity amp Temperature System is a rugged micro processor based digital meter with an attached YSI four electrode conductivity cell The Model 30 1s designed for use in field lab and process control applications and is available with cable lengths of either 10 25 or 50 feet The body of the probe has been manufactured with stainless steel to add rugged durability and sinking weight The large Liquid Crystal Display LCD is easy to read and is equipped with a back light for use in dark or poorly lighted areas The Model 30 s micro processor allows the system to be easily calibrated with the press of a few keys Additionally
37. ss the ENTER key to review the last set of data that was saved The Model 30M will display the conductivity and temperature Another press of the ENTER key will display the specific conductance and the temperature Press the ENTER key again to review the salinity which is also displayed with the temperature Press the UP ARROW key to increment through the saved sets of data Press the DOWN ARROW key to decrement through the saved sets of data NOTE The Model 30M will recall data as a list When the UP ARROW is pressed the Model 30M will display the Site ID for the previously recorded data For example If you are reviewing Site ID 5 and the UP ARROW is pressed the Model 30M will display Site ID 4 If you are reviewing Site ID 5 and Site ID 5 was the last set of data stored the DOWN ARROW key will display Site ID 1 Here is an example of the Model 30M memory Site ID 1 Site ID 2 Site ID 3 1f the UP ARROW key was pressed the Model 30M would display Site ID 2 Site ID 4 Site ID 5 4 3 ERASING STORED DATA I To erase the data that is stored into the Model 30M s memory press the MODE key until the Model 30M displays ErAS on the screen ErAS YSL Incorporated Model 30 30M 10 Saving Data Section 4 2 Press and hold both the DOWN ARROW and ENTER keys simultaneously for approximately 5 seconds 3 Successful erasure is indicated by the Model 30M flashing DONE on the display for 1 to 2 seconds The instrument will
38. the distance between two electrodes to the area normal to the current flow K d A cgs Abbreviation for the centimeter gram second system of units Mostly superseded by SI units conductance k The ratio of the current in a conductor to the potential difference between its ends the ability of a conductor to transmit current the reciprocal of resistance The SI unit is siemens S also measured in mhos conductivity N The ratio of the current density in a conductor to the electric field causing the current to flow the inverse of resistivity the conductance between opposite faces of a cube of the measured material of 1 cm cgs units or 1 m SI units edge Measured in mhos cm cgs units or S m SI units conductivity cell Any cell with electrodes used to measure the conductivity of liquid current I The rate of flow of an electric charge usually expressed in amperes electrode A conductor whereby an electric current enters or leaves a liquid gas or vacuum ion Any atom or molecule that has an electric charge due to the loss or gain of valence electrons mks Abbreviation for the meter kilogram second system of units mho A unit of conductance the reciprocal of an ohm micro u The metric prefix indicating 10 milli m The metric prefix indicating 10 NIST National Institute of Standards and Technology The US government agency that defines measurement standards in the United States ohm Q SI
39. the micro processor performs a self diagnostic routine each time the instrument is turned on The self diagnostic routine provides you with useful information about the cell constant function of the instrument circuitry and the quality of the readings you obtain For a list of these diagnostic features see Section 9 Troubleshooting The system simultaneously displays temperature in C along with one of the following parameters conductivity temperature compensated conductivity in uS cm or mS cm and salinity in parts per thousand ppt Though calibration is NOT required a single calibration will adjust the instrument regardless of which parameter you wish to read You can switch back and forth from salinity conductivity and temperature compensated conductivity with a single push of the MODE key A probe storage chamber is built into the instrument This chamber provides a convenient place to store the probe when the system is not in use and provides protection for the electrodes within the probe The instrument is powered by six AA size alkaline batteries A new set of alkaline batteries will provide approximately 100 hours of continuous operation When batteries need to be replaced the LCD will display a LO BAT message The YSI Model 30 instrument case is waterproof rated to IP65 You can operate your Model 30 in a steady rain without damage to the instrument The YSI Model 30M contains all the features of the Model 30 but
40. ze Alkaline Batteries included Approximately 100 hours operation from each new set of batteries Water Tightness Meets or exceeds IP65 standards Extensive testing of the YSI Model 30 indicates the following typical performance MEASUREMENT RANGE RESOLUTION ACCURACY Conductivity 0 to 499 9 uS cm 0 1 uS cm 0 5 FS 0 to 4999 uS cm 1 0 uS cm 0 5 FS 0 to 49 99 mS cm 0 01 mS cm 0 5 FS 0 to 200 0 mS cm 0 1 mS cm 0 5 FS 0 80 ppt 0 1 ppt 2 or 0 1 ppt 510959 C 0 19 C 110 For 50 Ft cables specification is for specific conductance gt 100 uS cm Adjustable Reference Temperature 159 C 259 C Adjustable Temperature Compensation Factor 0 4 Temperature Compensation Automatic Range User selected or Autoranging Data Storage 50 points with ID Model 30M only YSI Incorporated Model 30 30M 47 YSI incorporated 1700 1725 Brannum Lane Yellow Springs Ohio 45387 USA 800 765 4974 937 767 7241 FAX 937 767 9320 Website http www ysi com E Mail info ysi com DRW A30136E Web May 1998 Jan 2007 Web Item 030136
Download Pdf Manuals
Related Search