pH 700 Benchtop Meter Manual
Contents
1. Ammonia NH3 lodide I Ammonium NH Lead PRT Bromide Br Lithium Li Cadmium Cd Nitrate NO3 Calcium Ce Nitrogen Oxide NO Carbon Dioxide CO2 Perchlorate ClO Chloride CI Potassium KI Copper Cu Silver Sulfide Ag S Cyanide CN Sodium Na Fluoride F Surfactant X X Fluoroborate BF Water Hardness 13 8 SPECIFICATIONS pH Range Resolution Accuracy Calibration Points Buffer Options Slope Display mV Range Resolution Accuracy Offset Adjustment Temperature Range Resolution Accuracy Compensation Calibration lon Range Resolution ppm Accuracy Calibration Points Slope Range Memory Inputs Power USA pH 1 68 4 01 7 00 10 01 12 45 NIST pH 1 68 4 01 6 86 9 18 12 45 Yes with offset 2000 mV 0 1 mV 199 9 mV 1 mV beyond 200 mV 0 2 mV 199 9 mV 2 mV beyond 200 mV Up to 150 mV 0 0 to 100 0 C 32 0 to 212 0 F 0 1 C F Offset in 0 1 increments Offset range 5 C 9 F R From 2 to 5 consecutive points 0 1 1 0 10 0 100 0 or 1000 0 ppm 15 mV decade to 90 mV decade 01 s 1 0 5 FS mono valent 1 0 FS di valent 100 data sets BNC ATC Reference Half cell AC DC 9V 6W Adapter 100 240 VAC 50 60Hz 14 9 WARRANTY This meter is supplied with a warranty against significant deviations in material and workmanship for a period of THREE years from date of purchase whereas probe with a S2. mV Temp or ppm mV lon 700 only Also used to switch from pH to Temp during pH calibration mode Press and hold for 5 seconds to enter SETUP mode Toggles between measurement and calibration modes In SETUP mode returns user to the measurement mode MI Memory Insert stores values into memory A Increase value Scroll up in SETUP mode MR Memory Recall recalls values from memory Vv Decrease value Scroll down in SETUP mode Freezes measured reading Press again to resume live reading Confirms calibration values in CAL mode Confirms selections in SETUP mode View recalled values in memory mode 2 2 LCD Annunciators Setup Measurement Calibration Memory mode or when data mode mode mode is stored into memory Measured value is stable 8 Measured value is Sas HOLD held During Setup select D ees KH aS ppt BS ai Current Auto Hold ON Ready Be Cl lj lj ppm e TEAM EH ON or Ready OFF P rt L L L unit mode of UI operation aun amy s samme RmV Error or invalid key pressed We rl rl cF ATC tr Automatic Lili lt gt mm d Temperature Prompts user to select H lon buffer rT D Compensation is ame ae os ee eg emm active H Electrode Primary Secondary During pH CAL secondary error when Reading Reading reading Is the auto recognized appears with PH buffer standard value ERR 2 3 Meter Connections BNC connection for
3. desired 1 Connect the temperature probe to the meter and place into a solution with a known accurate temperature such as a constant temperature bath Note To adjust the manual temperature compensation MTC value do not connect the temperature probe 2 Press as needed to select pH or mV R mV 3 Press followed by Ei The primary display shows the measured temperature while the secondary display shows the factory default temperature 4 Adjust the temperature using kd or Press Si to accept or to cancel The meter allows an adjustable maximum value of 5 C or 0 9 F from the factory default temperature 5 3 3 Millivolt mV Offset Adjustment Oxidization Reduction Potential ORP or Redox is not a precise measurement but is useful as a relative indicator As such mV offset adjustment is not meant to enhance accuracy but rather to make readings comparable to a reference Commercial ORP solutions are often used as a check standard in which a meter electrode system are verified to be close to a given value instead of being used as a calibration standard in which adjustments are made in an attempt to match the ORP value 1 Connect an ORP electrode and press as needed to select mV or R mV 2 Dip the ORP electrode into a solution with a known mV value i e Zobel Light s quinhydrone or iodidetriiodide and stir 3 Press when the reading is stable The primary display shows the relative millivolt value
4. pH ORP Redox or lon Selective Electrodes ISE For Automatic Temperature Compensation probe Pin connection for half cell reference electrodes REF Requires separate half cell BNC electrode Note REF is not commonly used and is not required pc Power supply 3 CALIBRATION 3 1 pH Calibration For best results periodic calibration with known accurate standards is recommended Calibrate with standards that bracket your intended measuring range while including a neutral standard pH 7 00 or 6 86 For example if you expect to measure samples from pH 6 2 to pH 9 5 calibration with 4 01 7 00 and 10 01 will work well The 700 series meters can be calibrated with up to 5 buffers The non volatile memory retains all calibration values upon meter shut down The following calibration standards are automatically recognized USA buffer group 1 68 4 01 7 00 10 01 12 45 NIST buffer group 1 68 4 01 6 86 9 18 12 45 See Section 5 6 to change the buffer group To eliminate temperature errors associated with the pH electrode attach the automatic temperature compensation ATC probe for best accuracy Without temperature compensation pH accuracy will worsen as samples deviate from 25 C and pH 7 1 Press as needed to select pH 2 Dip the pH and ATC electrodes into pH buffer and press The secondary display will lock on the appropriate buffer value Provide stirring for best results When the READY indi
5. to cancel The mV decade slope value will be displayed briefly if the calibration is successful SLP Err indicates that the calibration for the current point was not successful This occurs when the slope mV difference between two consecutive points is lower than 15mV decade or higher than 90mV decade 7 Revert to step 3 to calibrate additional points or press as needed to return to measurement mode at any time Note The meter will automatically return to measurement mode upon successful completion of the number of specified calibration points To change the number of ion calibration points see Section 5 6 4 STORING AND RECALLING DATA The 700 series meters can retain up to 100 points into memory for later retrieval 1 In the measurement mode press 2 to insert the measured value into memory The stored memory location value StO is briefly displayed 2 To recall data from memory press 5 The location of the most recent stored data is displayed first Press EI to select the location of the desired data then press 8 to accept 3 Press SS to return to the stored data location Press to return to measurement mode To erase stored data see Section 5 8 5 SETUP FUNCTIONS Use the set up mode to customize your instrument operation During measurement press and hold for 5 seconds to enter SETUP mode Press EI to change programs or change options Press to select the program or confirm selection Pr
6. IX month warranty If repair or adjustment is necessary and has not been the result of abuse or misuse within the designated period please return freight prepaid and correction will be made without charge Eutech Instruments Oakton Instruments will determine if the product problem is due to deviations or customer misuse Out of warranty products will be repaired on a charged basis The warranty on your instrument shall not apply to defects resulting from e Improper or inadequate maintenance by customer e Unauthorized modification or misuse e Operation outside of the environment specifications of the products 10 RETURN OF ITEMS Authorization must be obtained from our Customer Service Department or authorized distributor before returning items for any reason A Return Goods Authorization RGA form is available through our authorized distributor Please include data regarding the reason the items are to be returned For your protection items must be carefully packed to prevent damage in shipment and insured against possible damage or loss Eutech Instruments will not be responsible for damage resulting from careless or insufficient packing A restocking charge will be made on all unauthorized returns NOTE Eutech Instruments Pte Ltd Oakton Instruments reserve the right to make improvements in design construction and appearance of products without notice 15 For more information on our products please contact ou
7. Instruction Manual pH 700 pH mV C F Bench Meter OARION INSTRUMENTS Part of Thermo Fisher Scientific 68X541701 Rev 1 Jan 2010 2 1 2 2 2 3 3 1 3 2 3 3 3 4 5 1 5 2 5 3 5 4 5 5 5 6 5 7 5 8 10 TABLE OF CONTENTS INTRODUCTION 0 cccceceeescceeeeesseceeeseseeeseseseeesnseseenenss 1 GETTING STARTED ccc ceeceeesceeeesesceneeseseeeenseseenes 2 Keypad FUNCTIONS exse cciesciecdesiiee eeevedineeceoeeneesgusnneteceteneserseenesees 2 ECD ANnunClators eege eege dees re 3 Meter Connections iv is secasececsciestcatenteectepeeteencteessceeeboes eters 3 CALIBRATION tissciiccctccd citesteshctaccctctasstoed claccacietentecttaanccse se 4 pH Calibrationiveti2 asst tte eatin tiie dis aes 4 Temperature Calibration eceeeceeeeeeeeeeeeeeeeeeeeeeeneeeeteeeenees 5 Millivolt mV Offset Adjustment ee ceeeeeeeteeeeeeeteneeeteeteaees 6 lon Calibration lon 700 Only ccceecceeeeeeeeeeeeteeeeeeeteeeeeeeen 6 STORING AND RECALLING DATA seen 7 SETUP FUNCTIONS cccccessseceeeseeeeeeeseeeeeeeeseeeseenenes 8 P1 0 CAL Calibration ee ceeeeeeeeeeeeeeeneeeeneeseaeeeeeeeteeeenaeen 8 P2 0 ELE Electrode Information 8 P3 0 ConF Configuration cccceeseeeeseeeeeeeteeeeeeeeeeeeeneeee 9 P3 1 rdY Ready Stability Indicator A 9 P3 2 C F Celcius Or Fahrenheit ceeeeeeeeeeeeeeeeeeeeeees 9 P3 3 buFF pH Buffers amp Calibration Points 10 PAO St RESET si 225
8. R mV while the secondary display shows the factory default mV value 4 Adjust the R mV value using kd or 5 Press 8 to accept or to cancel The meter allows an adjustable maximum value of 150 mV from the factory default mV value Note When an offset has been stored successfully R mV replaces mV 3 4 lon Calibration lon 700 Only The lon 700 can measure ion concentration such as ammonia or fluoride when using an ion selective electrode ISE for the specific ion of interest The available ion calibration values are 0 10 1 0 10 0 100 0 and 1000 parts per million ppm Choose a minimum of 2 consecutive values for calibration and prepare the corresponding ion calibration solutions For best results always begin with your lowest standard value followed by the next lowest standard 1 Connect the ISE and press as needed to select ppm Note The primary reading will show without a stored ion calibration The secondary value is the corresponding mV reading of the ISE 2 Dip the ISE into your lowest standard solution value and stir Press when the secondary reading is stable 3 Press 2 or EI to match the primary display to your corresponding ion calibration value 0 10 1 0 10 etc 4 Press SG to accept or to abort The primary display will show the next highest calibration standard value 5 Rinse the ISE then dip it into the corresponding calibration standard and stir 6 Press 8 to accept or
9. alid key Button does not work in the current operation mode lon slope calibration error calibration solutions are outside acceptable range 15 to 90 mV per decade Calibration points are more than 1 decade apart Calibration attempted with only 1 point during ion calibration Calibration attempted using only 1 point that was not pH 7 USA or pH 6 86 NIST Calibration error Buffer value does not match value displayed or electrode is disconnected or failing Measured value is out of range Electrodes not connected Electrode clogged dirty or broken Meter not calibrated Wrong temp value 12 SOLUTION Press alternate key Select valid buttons depending on mode Recalibrate using fresh ion solutions Use required ISA Replace electrode Recalibrate using consecutive calibration values 1 decade apart ex 1 0 and 10 0 Recalibrate using 2 or more ion calibration points Recalibrate using 2 or more pH points or use pH 7 USA or use pH 6 86 NIST Use fresh buffer solutions Check electrode connection Clean amp recondition electrode Replace electrode Make sure electrode is connected Clean or replace electrode Recalibrate the meter Treat samples to bring within meter measuring range Reset meter 7 ION SELECTIVE ELECTRODES Contact our partners for more details regarding ISE and related solutions The table below lists the most common electrodes available
10. cator appears press 8 to accept The primary reading will flash briefly before the secondary display begins scrolling the remaining available buffers 3 lt Rinse the pH and ATC electrodes then dip into the next pH buffer The secondary display will lock on the appropriate buffer value When the READY indicator appears press S to accept The primary reading will flash briefly then display the percent efficiency slope before the secondary display begins scrolling the remaining available buffers 4 4 To calibrate another buffer repeat step 3 or press to return to the measurement mode Note The meter will automatically return to measurement mode upon successful completion of the number of specified calibration points To specify a different number of pH calibration points see Section 5 6 Additional notes A single point offset calibration is only allowed with pH 7 00 or pH 6 86 buffers When the first calibration value is accepted during a new calibration all prior calibration values are erased Press at any time to abort calibration and return to measurement mode 3 2 Temperature Calibration The thermistor sensor used for automatic temperature compensation and measurement is both accurate and stable so require frequent calibration isn t required Temperature calibration is recommended upon electrode replacement whenever the temperature reading is suspect or if matching against a certified thermometer is
11. cee Sect ee dee ere 10 P5 0 CLr Clear Memor 10 TROUBLESHOOTING GUIDE cccessseeeeeseeeeeneees 11 ION SELECTIVE ELECTRODEG ccssseereesseereees 13 SPECIFICATIONS Wiese diecsesecedectiacteaveaat ddactacetadatiacteavesses 14 WAR RAN i GE 15 REUURNOEITEMS eege eeneg EEN 15 1 INTRODUCTION Thank you for purchasing our pH 700 lon 700 series benchtop meter These microprocessor based meters are economical and simple to use The design incorporates a large LCD for clear viewing yet offers a small footprint to conserve space The pH 700 measures pH mV ORP and temperature C or F In addition to these parameters the lon 700 features direct ion concentration measurement of various ions mono and divalent Each meter includes a convenient slide out card for quick reference Some configurations include an electrode arm and metal bracket which can be easily attached to the left or right side of the meter according to your preference The 700 series benchtop meters replace our popular 510 series meters that were introduced in 2000 We take great pride in every instrument we manufacture and hope this one serves you well 2 GETTING STARTED 2 1 Keypad Functions Powers the meter on and off Upon power on the meter automatically begins in the mode that was last used Calibration and memory values are retained even if meter is unplugged Toggle between available measurement modes pH Temp
12. ess to go back a level or to return to measurement mode 5 1 P1 0 CAL Calibration Press Se to view each stored calibration point 5 2 P2 0 ELE Electrode Information Press G to view mV offset OFS in mV and pH modes only Press EC to view slope SLP in pH and lon modes only Last Display Electrode Property Mode Offset Slope pH in mV lon in mV mV in mV Note When multiple slopes exist the slope that is available to view will depend on the measured value before entering SETUP mode For example if pH calibration values pH 4 01 7 00 and 10 01 were completed there will be two slope values one that corresponds to pH values below 7 00 and another that corresponds to pH values above 7 00 If the measured pH value was 5 23 when setup mode was entered the pH slope that corresponds to values lower than 7 00 will be available to view If no calibration is stored the offset will be 0 0 mV and the slope is 100 5 3 P3 0 ConF Configuration Press 5 5 4 P3 1 rdY Ready Stability Indicator Press Si Press EI to choose READY On READY OFF or Auto HOLd Press to confirm 5 5 P3 2 C F Celcius Or Fahrenheit Press Si Press EI to select C or F Press to confirm 5 6 P3 3 buFF pH Buffers amp Calibration Points Press Si Press EI to select USA or NIST buffer group pH mode only Press 2 or EI to select number of Calibra
13. r channel partner or visit our websites listed below Oakton Instruments Eutech Instruments Pte Ltd 625 E Bunker Court Blk 55 Ayer Rajah Crescent Vernon Hills IL 60061 04 16 24 USA Singapore 139949 Tel 1 888 462 5866 Tel 65 6778 6876 Fax 1 847 247 2984 Fax 65 6773 0836 info 4oakton com eutech thermofisher com www 4oakton com www eutechinst com Distributed by Part of Thermo Fisher Scientific
14. tion Points pH and lon only Press to confirm 5 7 P4 0 rSt Reset Press EI Press EI to select Yes or No If Yes press EI to select Cal calibration reset only or FCt complete reset to factory default settings Press to confirm 5 8 P5 0 CLr Clear Memory Press Si Press EI to select Yes erase memory or No Press Si to confirm 10 6 TROUBLESHOOTING GUIDE PROBLEM CAUSE No display a Main power not switched on b AC Adapter socket not inserted properly Unstable reading a Insufficient reference electrolyte in electrode b Broken electrode c External noises or induction e g electrical noise caused by a nearby motor d Dirty electrode Slow response a Dirty electrode Meter not responding to key press a HOLD mode in operation b Bad keypad SOLUTION a Switch on the power supply b Re insert AC Adapter amp press a Fill electrode with reference electrolyte b Replace electrode c Remove or switch off interfering device d Clean amp rehydrate the electrode a Clean amp rehydrate the electrode a Press to deactivate See SETUP to disable Auto Hold feature if enabled b Contact Technical Service 11 From any screen lon CAL mode lon CAL mode lon CAL mode pH CAL mode Err with electrode icon Ur Under range Or Over range Inv
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