Accument Basic AB 15/15+ PH Meter User Manual
Contents
1. 9600 19200 and 38400 Print Print 4 Press enter key to confirm selection OR press mode to exit from this page and return to measure screen 20 accumet 4 1 8 Parity Bit Only availble in AB15 This setup option allows you to set the parity bit of the communication protocol interface To Set Parity Bit 1 Access the Set Parity Bit menu from any Measure screen by pressing the setup key 2 Use the setup key to scroll until the screen display as shown e press setup to select options press enter to accept 21 accumet 3 Press enter key to make selection and return to measurement OR use the setup key to go to other parity setting 0 none 1 odd or 2 even Default 2 even Z 4 Press enter key to confirm selection OR press mode to exit from this page 22 accumet 4 1 9 Stop Bit Only available in AB15 This setup option allows you to set the stop bit of the communication protocol interface To Set Stop Bit 1 Access the Set Stop Bit menu from any Measure screen by pressing the setup key 2 Use the setup key to scroll until the screen display as shown e press setup to select options press enter to accept 23 accumet 3 Press enter key to make selection and return to measurement OR use the setup key to go to Stop Bit 2 option 4 Press enter key to confirm selection OR press mode to exit from this page 24 4 1 10 Print Current amp Stored Da2. see pages 29 32 Standardize pH GD 3 After the standardization meter returns to measurement mode 34 accumet Press setup to return to setup and select the next buffer group 4 that contains the desired buffer s See page 14 eS a e OIS BUFFER select 5 Press std key to standardize the meter with the selected buffer s see pages 29 32 Standardize pH Repeat steps 1 2 until standardization with all desired buffers is completed 6 ST It is better if the selected buffers will be at least 2 pH units apart 35 accumet 6 MEASUREMENT 6 1 Measurement Procedure _ Immerse the electrode along with temperature probe if available for the measurement of pH into the sample solution Stir moderately ST Make sure that the meter is in the Measure mode Nn When the meter senses that the reading has stabilized the stable icon will appear under the reading The reading may be recorded at this time ee STABLE icon will only appear provided that it has been set to On mode in setup See Section 4 1 6 Stability Indicator Only available in AB15 Pg 17 Measure pH BUFFER 47 10 press mode to select pH mV REL mV press setup to select options press save view to store recall data press std to standardize GIOIGIGIGIe we 25 0 17 AB15 screen amp display keys 36 accumet Measure pH BUFFER 4 7 10
3. Measure screen 14 accumet 4 1 4 Temperature Unit This setup option allows you to select unit of measure for Temperature either in C or F To Select Temperature Unit 1 Access the Select Temperature Unit menu from the pH Measure screen by pressing the setup key 2 Press setup to scroll until screen displays as follows Press setup to display the select TEMP UNIT icon select C TEMP 3 Press enter to accept the C temperature unit and return to the Measure screen or 4 Press setup again to display the F unit select oF TEMP 5 Press enter to accept the F unit and return to the Measure screen 15 accumet 4 1 5 Set pH Resolution This setup option allows you to select various pH resolution either 0 1 0 01 or 0 001 only available in AB15 To Select pH Resolution 1 Access the Select pH Resolution menu from the pH Measure screen by pressing the setup key 2 Press setup to scroll until screen displays as follows Press setup to view the three decimal point resolution selection Three decimal resolution only available in Accumet AB15 pH press setup to select options press enter to accept 3 Press enter to accept this resolution and return to the Measure screen OR 4 Press setup again to display two one resolution setup options pH el A Ot LJ EEn l EAN gt pH 5 Press enter to accept this resolution and return to the measure screen 6 Press enter key to confi
4. bulb electrode that is sensitive to hydrogen ions Therefore the potential developed at the glass bulb is directly related to the pH of the solution The glass bulb electrode is paired with a reference electrode which completes the electrical measuring circuit and provides a stable reference point These two electrodes can be separated or they can be joined to create a combination electrode The combination glass electrode makes a single connection to the pH meter which converts the electrodes millivolts output to pH unit and displays the result This meter can also use a field effect transistor FET electrode for measuring pH This type of electrode employs an ion sensitive solid state membrane as part of a transistor to measure the hydrogen ion concentration of a solution The FET is paired with a reference electrode and counter electrode that maintain a constant potential while the FET responds to the sample 46 accumet 11 CLEANING This meter requires no regular maintenance but it is recommended to occasionally wipe down the front with a damp cloth from time to time 12 TROUBLE SHOOTING Most troubles arise out of a problem with the electrode not the meter However a meter check can be performed and is simple to do 1 To test the meter for correct operation install the BNC input shorting cap Press the mode key to access the mV mode and note the mV reading If the meter reads 0 1 mV it is measuring co
5. during operation the screen displays Err1 This indicates a communication error due to incorrect baud rate parity or stop bit being selected 44 accumet 10 pH THEORY The measurement of pH plays an important role in quantifying and controlling acidity and alkalinity levels for industry and research pH is a measure of the acidity or alkalinity of a solution and can be represented by this equation pH log H With H representing the concentration of hydrogen ions in the solution pH is sometimes referred to as power of the hydrogen ion in a solution By using a pH meter you can most precisely determine exact pH levels of solutions For example rather than saying that lemon juice is quite acidic you can say that lemon juice has a pH of 2 4 an exact pH value is often required to control or optimise acidity levels for manufacturing processes or for basic research pH values generally range from 0 to 14 with a pH value of 7 being the neutral point or the value of pure water The pH values above the neutral point represent increasing alkalinity whereas pH values below the neutral point represent increasing acidity Neutral I Strong Acid Lemon Juice Tomato Juice Coffee Pure Water Baking Soda Ammonia Strong Base 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Hd more acidic more alkaline v rI 45 accumet 10 1Measuring pH To measure pH the meter receives a millivolts signal from a glass
6. 00 Blue Fisher Buffer Pac 4 00 Red 7 00 Yellow 10 00 Blue Gray Ingredients Potassium Biphthalate Potassium Phosphate Monobasic amp Sodium Hyroxide Potassium Carbonate Potassium Borate amp Potassium Hydroxide 500 ml ea Of colour coded pH 4 7 and 10 buffers Individual Tear open pH Packets Individual Tear open pH Packets Individual Tear open pH Packets Electrode Rinse Individual Tear open pH Packets Electrode Storage Solution To place an order call 1 888 358 4706 For technical Support call 1 888 358 4706 52 Size 500 ml 500 ml 500 ml 3 X 500 ml 20 box 20 box 20 box 20 box 1L accumet Fisher Catalog Number SB101 500 SB107 500 SB115 500 SB105 SB4 SB7 SB10 SB15 SE40 1 Electrochemical Questions Call our Technical Specialists at 1 888 358 4706 Email accumet fishersci com MODEL NUMBER _ SERIAL NUMBER PURCHASE DATE __ 68X295801 Rev 2 12 03
7. DE message will appear GOOD ELECTRODE If the electrode is outside this range the meter will display the ELECTRDOE ERROR message and will not return to the Measure screen until the user presses enter ELECTRODE ERROR ST The meter will permit the user to use an electrode outside the recommended range but the ERROR message will persist 32 accumet 5 2 pH Electrode Diagnosis Indicator There is an electrode diagnosis icon that indicates the condition of pH electrode being used The STABLE icon will appear once the reading is stabilised If the meter is calibrated with 2 or more points then meter displays the electrode characteristic indicator bar with appropriate segments All 3 segments lighted 102 gt Slope gt 90 a 2 segments lighted 90 gt Slope gt 80 a 1 segment lighted 80 gt Slope gt 70 None lighted Slope lt 70 or gt 102 i ST STABLE icon will only appear provided that it has been set yo On mode in setup See Section 4 1 6 Stability Indicator Only available in AB15 Pg 17 33 accumet 5 3 Standardizing with buffers from different buffer sets You can standardize the meter or buffer values from different selected buffer groups To standardize with buffers from different buffer sets 1 Press setup to select a buffer group that includes the desired buffer See page 14 BUFFER DR A 7 10 12 select 2 Press std to standardize the meter with the selected buffer s
8. accumets asc AB 15 15 F Fisher Scientific accumet TABLE OF CONTENTS 1 INTRODUCTION 2 GETTING STARTED 2 1 Connectors 3 USING THE METER 3 1 Electrodes 3 2 Display Keys 3 3 Screen Display 4 pH OPERATION 4 1 Using Setup 4 1 1 View pH Electrode Slope 4 1 2 Clear pH Standardization 4 1 3 pH Buffer Group 4 1 4 Temperature Unit 4 1 5 Set pH Resolution 4 1 6 Stability Indicator Only available in AB15 4 1 7 Baud Rate Only available in AB15 4 1 8 Parity Bit Only availble in AB15 4 1 9 Stop Bit Only available in AB15 4 1 10 Print Current amp Stored Data Clear Stored Data Only available in AB15 4 1 11 Clear Stored Data Only available in AB15 5 STANDARDIZATION 5 1 Standardization Procedure 5 2 pH Electrode Diagnosis Indicator 5 3 Standardizing with buffers from different buffer sets 6 MEASUREMENT 6 1 Measurement Procedure 7 mVOR RELATIVE mV OPERATION 7 1 Absolute mV 7 2 Relative mV 7 3 Temperature Calibration 8 MEMORY Only available in AB15 8 1 Store Value Into Memory 8 2 Recall Value From Memory 9 PRINT DATA Only available in AB15 9 1 Printing Data 10 pH THEORY 10 1 Measuring pH 11 CLEANING 12 TROUBLE SHOOTING 13 METER SPECIFICATIONS 14 WARRANTY 15 NOTICE OF COMPLIANCE 16 REPLACEMENT PARTS 16 1 Replacement parts 16 2 Accessories 16 3 pH Buffers and Solutions accumet 51 51 52 47 47 48 49 50 51 1 INTRODUCTION Thank you for sel
9. cuTupH AccuFet AccupHast and Microprobe electrodes will be free from defects in material or workmanship for a specified warranty period During that period Fisher will repair or replace the product or provide credit at its sole option upon prompt notification and compliance with its instructions For Accumet meter that specified period is 24 months from delivery date For electrodes that specified period is 12 months except for models 13 620 532 13 620 533 13 620 534 13 620 535 13 620 536 13 620 537 13 620 538 13 620 539 which are warranted for six months Unless otherwise agreed the warranty is limited to the country in which the product is sold No Fisher employee agent or representative has the authority to bind Fisher to any oral representation or warranty concerning any product sold Any oral representation or warranty made prior to purchase of any product and not set forth in writing and signed by a duly authorized officer of Fisher shall not be enforceble by the purchaser FISHER EXPRESSLY DISCLAIMS ALL OTHER WARRANTIES EXPRESS OR IMPLIED WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE Fisher s sole responsibility and the purchaser s exclusive remedy for any claim arising out of the purchase or any product listed above is repair replacement or credit as described above where applicable In no event 1 shall the cost of the exclusive remedy exceed the purchase price 2 shall Fisher be liable fo
10. e setup key 2 Press setup again to display the clear BUFFER icon is displayed along with the previously entered buffers clear BUFFER 4 7 10 e press setup to select options e press enter to accept 3 Press enter to clear all existing buffers 4 Press enter key to confirm selection OR press mode key to exit to measurement OR press setup key to access other setup options NOTE If no buffers have been entered the meter will skip this screen ee You can escape setup mode at any time by pressing mode Pressing enter will always return the display to the Measure screen after accepting the setup option 13 accumet 4 1 3 pH Buffer Group This setup option allows you to select from 3 different buffer groups for auto buffer recognition The 3 buffer groups are USA buffers 2 4 7 10 and 12 European buffers 1 3 6 8 10 and 13 NIST buffers 1 68 4 01 6 86 9 18 and 12 46 To Select pH Buffer Group 1 Access the pH Buffer Group menu from the pH Measure screen by pressing the setup key and the screen will display the BUFFER select icon BUFFER 2 4 7 1 12 select e press setup to select options e press enter to accept 2 Press enter to accept the group and return to the Measure screen or 3 Continue to press setup until the desired buffer group is displayed 1 3 6 8 10 13 BUFFER select BUFFER select 168 4 01 686 9 18 1246 4 Press enter to accept the desired buffer group and return to the
11. ecting the Accumet AB 15 15 bench top meter This instruction manual describes the operation of the meter The state of art meter that you have purchased is easy to operate and will guide you through the various functions by displaying easy to understand prompts This instruction manual is designed to provide all the information necessary to guide you through the process of measuring pH or mV with a series of prompts on the screen ST You will find this symbol appearing in this manual it indicates useful tips that ease your meter operation The Accumet AB 15 15 meter provides microprocessor precision in a compact benchtop design that is easy to use This meter allows you Measure pH absolute mV relative mV or temperature Select one of three sets of standard buffer groups Standardize with up to five six buffers It all adds up to rapid completely automatic intuitive operation accumet accumet 2 GETTING STARTED 2 1 Connectors 1 Review the layout and arrangement of the rear connector panel FET electrode Automatic Temperature Compensation ATC Computer Printer Reference pin jack AB15 only BNC input connector ME TOO accumet 2 Connect the electrode arm to the base 3 Connect the power cable to the connector cable to the rear connector panel power jack and to a power source POWER 3 USING THE METER 3 1 Electrodes This meter allows you t
12. ended level Proper electrode care is fundamental to obtaining reliable pH measurements Improper care of the electrode may cause the meter reading to drift respond slowly or produce erroneous readings For this reason the electrode should always be conditioned and used in accordance with manufacturer s instructions accumet 3 2 Display Keys accumet Overview of the meter screen display and function key layout accumet BASTE Measure press setup to select options press std to standardize 3 lt Co OOOOO press mode to select pH mV REL mV press save view to store recall data AB15 Plus pH Meter TEMP 250 c i DEFAULT Fisher Scientific Meter Display AB15 er Press std key to initiate standardization from measure mode Or press std key at the Standardize mode to confirm the standardization and return to Measure mode Press mode to select pH mV and Relative mV Press setup key to access setup for configuration of meter setting Press print key to print stored data from memory or current reading to a PC or printer depending on meter setup Press enter key to confirm selection or change being made Press save A key to increment value or scroll up selection Press view V key to decrement value or scroll down selection Press savel A key to store displayed data into memory Press view V key to recall and select mem
13. et to On mode in setup See Section 4 1 6 Stability Indicator Only available in AB15 Pg 17 38 accumet 7 2 Relative mV The Relative mV mode helps you to standardize certain analytical and monitoring activities such as filtrations 1 Access the Relative mV mode by pressing mode until your meter displays screen shown below Immerse the electrode in a sample solution If you press std and mV on the screen will change to 0 0 mV reading Subsequent mV readings will be displayed relative to this 0 0 mV setting Reading may be recorded by storing into meters measuring using save A key SAVING function only available in AB15 Measure press mode to select pH mV REL mV press setup to select buffers press std to standardize me 25 0 39 accumet accumet 7 3 Temperature Calibration 1 Access the temperature calibration mode by pressing mode key to go to the absolute mV measure screen 2 Press std This will take you to the temperature calibration MTC or ATC 3 Press save A or view V to adjust the temperature Standardize e press A V to set value e press std to standardize 2 c N f DEFAULT 4 Press std to confirm the reading Maximum adjustable temperature offset is For ATC 5 C 9F For MTC 5 to 105 C 23 F 221 F 40 accumet 8 MEMORY Only available in AB15 8 1 Store Value Into Memory In any Measure mode press save A key to store the d
14. gital display indicates pH mode This key toggles between pH mV and Rel mV modes 2 Press the setup key twice and then press enter key to clear an existing standardization See USING SETUP on Pg 9 if the calibration done press std to standardize 250177 AB15 screen amp display keys 3 Immerse the rinsed electrode s into a buffer from the selected group Stir moderately 30 accumet 4 Press std to access the Standardize mode The selected buffer group is displayed briefly BUFFER DAO 12 select 5 Do wait for reading to stabilize 6 Press std again to initiate standardization The meter will automatically recognize the buffer Standardize pH and then meter returns to the Measure screen S Press mode key while in the standardization mode to return to measurement without accepting calibration 31 accumet 7 Repeat steps 3 6 with a second and subsequent buffers ST When the ATC probe is connected the meter will continually adjust for temperature Therefore the buffer values may vary slightly from the nominal values because of temperature variations ST It is good to standardize your meter using at least 2 buffers When the meter accepts the second buffer it will briefly display the percent slope associated with the electrode s performance prior to returning to the Measure mode SLOPE ZEEEEN If the electrode is within the range of 90 102 the GOOD ELECTRO
15. in the setup mode Press the setup key to scroll through the remaining selection options available Press the enter key to accept a change or selection in the displayed parameter The meter will then return to the measurement mode accumet accumet pH SLOPE View BUFFER J24 7 10 12 select UE select TEMP C UNIT e View pH electrode slope View the pH electrode slope in after 2 point standardization is successfully done aN Wu Print PArt Print CO Clear pH standardization To clear pH standardized buffers pH buffer group Select from 3 different buffer groups each containing 5 6 C i buffers for auto buffer recognition J Li Print Temperature Unit Select unit of measure for Temperature either in C or F pH resolution Select various pH resolution either 88 888 88 88 or 88 8 0 001 0 01 0 1 clear Stability Indicator Set the stability indicator to be displayed on the screen Select On or OFF Baud Rate To set the baud rate bits of second of the communication protocol interface Select from 4800 9600 19200 or 38200 Parity Bit Set the parity bit of the communication protocol interface Select O none 1 odd or 2 even Stop Bit Set the stop bit of the communication protocol interface Select 1 or 2 Print Data To print current displayed data or data stored in the meter s memory to a computer or p
16. isplayed reading into the meter s non volatile memory A memory location is shown momentarily and the meter returns to the Measure mode 41 accumet 8 2 Recall Value From Memory In any Measure mode pressing view V key retrieves data from the meters memory on the Last In First Out LIFO basis The screen displays the last stored memory location To view stored data in that particular memory location press enter key If you wish to view data at specific memory location use save A or view V key to scroll and select View 1 Press enter key to view data contents pH press enter to accept ER 2 50 f DEFAULT 42 accumet 2 Pressing enter key repeatedly allows you to view data contents until a series of dashes appear on the display which indicates an empty data location View Pressing mode key allows you to return to the Measure mode in any sequence of memory recall 43 9 PRINT DATA Only available in AB15 9 1 Printing Data Depending on the print option in the meter setup pressing print key allows you to print either current displayed reading or stored data from meter to a PC or printing device via a RS232 communication cable Ensure that both meter and peripheral have the same configuration in terms of baud rate parity bit and stop bit Please check with the printer s or peripheral s manufacturers for details of any specific settings of the device in use If there is an error message
17. o use two types of pH electrodes the conventional glass pH electrode and the field effect transistor FET electrode If both types of electrodes are connected the meter will read the FET electrode 1 Carefully remove the protective cover from the end of the electrode Before first using your glass pH electrode soak it 2 4 hours in an electrode storage solution pH 4 buffer or KCI solution 2 Remove the shorting cap on BNC connector Connect the combination pH electrode in to the BNC input connector If a combination electrode isn t used connect the indicating pH electrode into the BNC input connector Plug the reference electrode into the reference pin jack Also install the ATC probe into the ATC jack Note be sure to connect all probes to the appropriate channel connectors for example Input 1 Ref 1 and ATC1 Option Connect the optional FET electrode by plugging it into the FET jack on the back meter panel Allow the FET electrode to warm up five minutes before use accumet 3 Rinse and blot dry don t wipe electrodes between each measurement Rinse electrodes with distilled or deionized water or a portion of the next solution to be measured 4 Between measurements store conventional pH electrodes storage solution pH 4 buffer or KCI solution Always leave the filling hole of liquid filled combination electrodes open Refill when the level of solution gets below the manufacturers recomm
18. ory location of stored data Press stdby key to start up or put the meter in standby mode save A and view VW keys perform different functions whilst in different modes These keys are only available in Accumet AB15 accumet accumet AB15 BFASSIIEG pH Meter Measure press mode to select pH mV REL mV press setup to select options press std to standardize TEMP of c i DEFAULT O Fisher Scientific Meter Display AB15 mode accumet 3 3 Screen Display Familiarize yourself with the layout of the digital screen display Measure Standardize mi fai M REL mV MIN H H H HHA dea mkohm TDS Factor Cell Constant View fait Sali mmH Sat COEFF Print clear 13681013 By jis Stable Icon BUFFER 2 amp 4 7 TO 12 select 1 68 4 01 6 86 9 18 12 46 press STANDBY to resume press mode to select pH mV REL mV press AV to set value press setup to select options Electrode press enter to accept Diagnosis press save view to store recall data Indicator press std to standardize GOOD ELECTRODE ERROR check Electrode Buffers Temperature STD Solution ga select Ko DEFAULT anett UNIT m n F ATC temperature display 4 pH OPERATION 4 1 Using Setup The setup button is in essence a scroll key which allows you to change several operating parameters While in the setup mode you may Press the mode key to return to the Measure screen without making a change or selection
19. press mode to select pH mV REL mV press setup to select buffers press std to standardize 250 AB15 screen amp display keys ee Stirring with a magnetic stir bar and stirrer provides faster electrode response 3 The reading may be recorded at this time by saving into meter s memory using save key 37 7 mV OR RELATIVE mV OPERATION 7 1 Absolute mV Millivolts mV measurement is used primarily for measuring redox potential also known as ORP oxidation reduction potential You will normally use a platinum ORP electrode combined with a reference electrode to measure redox potential ORP of a test sample ORP measurements indicate the oxidizing or reducing capability of a solution You can also use ORP values to monitor or control solutions requiring a set amount of oxidants or reductants Calibration of ORP is not necessary However it is essential to cross reference using known Quinhydrone or Pre treatment ORP solutions to ensure good working condition and response of ORP electrode being used from time to time 1 Access the mV mode by pressing mode key until your meter displays screen shown below 2 Immerse the electrode in a sample solution 3 The stable icon appears when reading stabilizes The reading may be recorded at this time by storing into meter s memory using save A key SAVING function only available in AB15 ST STABLE icon will only appear provided that it has been s
20. r any special indirect incidental consequential or exemplary damages howsoever arising even if Fisher has been advised of the possibility of such damages Each article that Fisher furnishes will conform to the written specifications given in this manual or those of a further improved model Changes are made often to the information in the mnual and will be incorporated into future editions 49 accumet 15 NOTICE OF COMPLIANCE Warning This meter generates uses and can radiate radio frequency energy If not installed and used properly that is in strict accordance with the manufacturer s instructions it may cause interference to radio communications It has been tested and found to comply with the limits for a Class A computing device pursuant to Subpart J of Part 15 of FCC Rules which are designed to provide reasonable protection against such interference when operated in a commercial environment Operation of this equipment in a residential area may cause interference in which case the user at his own expense will be required to take whenever measures may be required to correct the interference This product is to be used only as described in the manual This product is for indoor use only and must be used in a well ventilated area Warning To meet or exceed FCC regulations and comply with CE requirements the Fisher Scientific supplied power supply must be used Use of a power supply that is not approved b
21. ress mode setup to exit to measurement LL kb Ih It hae z q nna clear S When enter key is pressed meter displays the blinking clear icon Once the clearing process is over meter returns to measure screen 28 accumet 5 STANDARDIZATION 5 1 Standardization Procedure Because electrodes vary in their response you must standardize or calibrate your pH meter and electrode to compensate for electrode variation The more frequently you standardize or calibrate the more accurate your measurements Standardize at least daily or more often for accurate results The Accumet AB 15 15 meter has auto buffer recognition for up to 5 6 buffer values from choice of either 1 of the 3 buffer groups available or 6 custom pH buffer values selected from any of these 3 buffer groups Depending on buffer selection Standardize 1 Press and release the mode key until your digital display indicates pH mode This key toggles between pH mV and Rel mV modes 2 Press the setup key twice and then press enter key to clear an existing standardization See USING SETUP on Pg 9 if the calibration done N BUFFER press setup to select buffers press std to standardize OIOIOIGIGIe 2504 AB15 screen amp display keys 29 accumet Standardize 180 BUFFER 2 4 7 10 12 press setup to select buffers 1 Press and release the mode key until your di
22. rinter via Rs232 Clear Stored Data To clear all stored data sets for new data to be stored Overview of Setup Menus in AB15 10 accumet View pH electrode slope View the pH electrode slope in after 2 point standardization is successfully done pH SLOPE View ae Clear pH standardization BUFFER a if IO To clear pH standardized buffers pH buffer group Select from 3 different buffer BUFFER 24 7 10 12 groups each containing 5 6 lt buffers for auto buffer recognition Temperature Unit Select unit of measure for select Temperature either in C or F TEMP C UNIT d PH pH resolution Select pH resolution either 4 988 sir Overview of Setup Menus in AB15 11 accumet 4 1 1 View pH Electrode Slope This setup menu allows you to view the pH electrode slope in after 2 point standardization is successfully done 1 Press setup to view the pH electrode slope in pH SLOPE EEEN ty e press setup to select options e press enter to accept ELECTRODE 2 If the unit has not been standardized a series of dashes will appear on the display rather than a number pH SLOPE 3 Press enter or mode to return to measurement 12 accumet 4 1 2 Clear pH Standardization The setup option allows you to clear the previous pH standardization To clear pH Standardization 1 Access the Clear pH Standardization menu from the pH Measure screen by pressing th
23. rm selection OR press mode key to exit to measurement OR press setup key to access other setup options 4 1 6 Stability Indicator Only available in AB15 This setup option allows you to set the stability indicator to be displayed on the screen whenever reading has stabilized thus minimizes guesswork To Set Stability Indicator 1 Access the Set Stability Indicator menu from any Measure screen by pressing the setup key 2 Use the setup key to scroll until the screen displays the stable icon is shown press setup to select options press enter to accept Un 3 Press enter to enable the STABLE OR press setup again to select to disable the STABLE option 17 accumet accumet e press setup to select options press enter to accept OFF 5 Press enter key to confirm selection OR press mode key to exit to measurement OR press setup key to access other setup options 18 accumet 4 1 7 Baud Rate Only available in AB15 This setup option allows you to set the baud rate bits per second of the communication protocol interface To Set Baud Rate 1 Access the Set Baud Rate menu from any Measure screen by pressing the setup key 2 Use the setup key to scroll until the screen display as shown press setup to select options e press enter to accept 19 accumet 3 Press enter key to make selection and exit to measurement OR use the setup key to go to other baud rate selection 4800
24. rrectly 2 The meter will display Electrode Error when it detects an error in electrode response During standardization the message indicates that the electrode has a slope of less than 90 or more than 102 The Electrode Error message can indicate a bad electrode s bad buffer s or a bad standard sequence technique ELECTRODE ERROR 47 accumet 13 METER SPECIFICATIONS Description AB15 AB15 Display Custom LCD Screen Size 3 X 4 25 Measurement Display Height YH Temp others display height 5 16 Keypad controls 5 keys 7 keys 100 Memory Memory T Locations Internal Diagnostics pH Mode Range 1 99 to 19 99 1 999 to 19 999 Resolution 0 1 0 01 0 1 0 01 0 001 Relative Accuracy 0 01 0 002 Automatic Buffer Recognition Yes Calibration Points 5 6 FET Yes mV Mode Range 1800 0 to 1800 0 Resolution 1 0 1 Accuracy 1 0 2 Temperature Mode Range 5 to 105 C 23 F or 221 F Resolution 0 1 Accuracy 0 5 C General Inputs outputs Electrical Requirements BNC Pin ATC DIN For FET 12 VDC centre negative Impedance gt 10 ohms Meter Size 5 5 X 7 5 X3 25 Meter Weight 7 86lb RS232 output Yes 48 accumet 14 WARRANTY The Fisher Scientific Company Fisher warrants to the direct purchaser that the Accumet meters and Accumet Ac
25. ta Clear Stored Data Only available in AB15 This setup option allows you to print current displayed data or data stored in the meters memory to a computer or printer via its RS232 interface port Note all the communication protocol for both the meter and computer printer must match before successful printing can be performed To Select Print Data Option Current Memory 1 Access the Select Print Data Option menu from any Measure screen by pressing the setup key 2 Use the setup key to scroll until the screen display as shown press setup to select options press enter to accept 25 accumet accumet 3 Press enter key to make selection and return to measurement OR 4 Press setup key again to print stored data option e press setup to select options press enter to accept 26 accumet 4 1 11 Clear Stored Data Only available in AB15 This setup option allows you to clear all stored data sets from previous measurements in the meter s memory for new data to be stored Note old data sets will be overwritten by any new data sets in the event when the stored locations have exceeded To Clear Stored Data 1 Access the Clear Stored Data menu from any Measure screen by pressing the setup key 2 Use the setup key to scroll until the screen displays as shown e press setup to select options e press enter to accept JREA 27 accumet 3 Press enter key to clear the memory OR P
26. y Fisher Scientific may cause safety hazards and or cause unit to exceed EMC limits and or damage unit When using his meter with a computer or printer a shielded RS232 cable must be used to meet or exceed FCC regulations and comply with CE Mark requirements 50 accumet accumet 16 REPLACEMENT PARTS 16 1 Replacement parts Description Accumet 3 in 1 pH ATC combinaktion electrode single junction Ag AgCl reference polymer body BNC connector AccuFlex electrode support arm Electrode support bracket Power Supplies 115V US plug 230V UK plug 230V Europe plug Operator s Manual BNC Shorting cap 16 2 Accessories pH Electrodes Accumet 3 in 1 pH ATC combination electrode single junction Calomel reference glass body BNC connector Accumet pH combination electrode single junction calomel reference glass body BNC connector AccupHast pH combination electrode double junction glass body BNC connector AccupHast pH combination electrode double junction epoxy body BNC connector AccuFet solid state pH ATC combination electrode Ag AgCl gel reference ATC probe 51 Fisher Catalog Number 13 620 530 13 637 671 13 637 671A 13 636 100 13 636 101 13 636 102 13 636 AB15M 13 636 99 Fisher Catalog Number 13 620 531 13 620 286 13 620 296 13 620 298 13 620 755 13 620 19 16 3 pH Buffers and Solutions pH Colour 4 00 Red 7 00 Yellow 10
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