pH 300/310
Contents
1. 3 1 Important Information on Meter Calibration When you re calibrate your meter old pH Rel mV and mV calibration points are replaced on a point by point basis For example if you previously calibrated your meter at pH 4 01 7 00 and 10 01 and you have now re calibrated at pH 7 00 the meter retains the old calibration data at pH 4 01 and pH 10 01 To view current calibration points see Program P2 0 in the SETUP section on page 26 To completely re calibrate your meter or when you use a replacement probe it is best to set the meter to its factory defaults and re calibrate the meter at all points To reset the meter to its factory defaults see the SETUP section Program P5 0 page 34 for pH 300 meter or Program P6 0 page 37 for pH 310 meter 3 2 Preparing the Meter for Calibration Before starting calibration make sure you are in the correct measurement mode When you switch on the meter the meter starts up in the units last used For example if you shut the meter off in mV units the meter will read mV units when you switch the meter on Be sure to remove the protective electrode storage bottle or rubber cap of the electrode before calibration or measurement If the electrode has been stored dry wet the electrode in tap water for 10 minutes before calibrating or taking readings to saturate the pH electrode surface and minimize drift Wash your electrode in deionized water after use and store in electrode stor2. Please read this manual thoroughly before operating your meter 2 DISPLAY AND KEYPAD FUNCTIONS 2 1 Display The LCD has a primary and secondary display The primary display shows the measured pH mV or Relative mV value The secondary display shows the measured temperature The display also See Figure 1 E SETup mode indicator N MEASurement mode indicator CALibration indicator oo A MEMory recall mode indicator oa mV or Relative mV indicator oa PH indicator shows error messages keypad Figure 1 Full LCD Screen 7 Temperature indicator F available on pH 310 meter only 8 pH buffer selection indicator 9 Automatic Temperature Compensation indicator 10 Clock indicator pH 310 meter only 11 ERRor indicator 12 MEMory location indicator functions and program functions 13 Low battery indicator 14 Probe indicator 15 Buffer indicator 16 Function ON OFF indicator 17 HOLD indicator 18 READY indicator 2 2 Keypad The large membrane keypad makes the instrument easy to use Each button when pressed has a corresponding graphic indicator on the LCD See Figure 2 Some buttons have several functions depending on its mode of operation Key Function ON OFF Powers on and shuts off the meter When you switch on the meter the meter starts up in the mode that you last switched off from For example if you shut the meter of
3. To connect the pH ORP or ISE electrode 1 Slide the BNC connector of the probe over the BNC connector socket on the meter Make sure the slots of the connector are in line with the posts of the socket Rotate and push the connector clockwise until it locks 5 To remove electrode push and rotate the connector counterclockwise While holding onto the metal part of the connector pull it away from the meter CAUTION Do not pull on the probe cord or the probe wires might disconnect To connect the temperature probe 1 Line up the notch and 6 pins on the probe connector with the holes in the connector located on the top of the meter Push down and screw the metal sleeve to lock the probe connector into place See Figure 4 6 To remove probe unscrew the metal sleeve and slide up the probe connector While holding onto metal sleeve pull probe away from the meter CAUTION Do not pull on the probe cord or the probe wires might disconnect Electrode Temperature probe with BNC connector with 6 pin connector lt locking ring top view of 6 pin connector of temperature probe Figure 4 Connection for pH Electrode BNC and Temperature probe 6 pin connector 2 5 Attaching the Electrode Holder to the Meter The waterproof pH 300 310 handheld meter comes complete with two electrode holders They are designed to facilitate one hand operation Attach two electrode holders if you have a separate electrode and tempe
4. See Figure 21 and 22 21 SETUP MEAS Figure 21 pH 300 Advanced Setup Subgroups r p m n cr D Figure 22 pH 310 Advanced Setup Subgroups 22 7 1 Advanced SET UP Mode Overview Press the SETUP key to enter Set up mode Press the MI A or MR keys to scroll through sub groups pH 300 meter set up mode P1 0 Memory clear P1 0 Clear all stored readings P2 0 Viewing previous calibration data P2 1 View first calibration point pH 1 68 P2 2 View second calibration point pH 4 01 P2 3 View third calibration point pH 7 00 P2 4 View fourth calibration point pH 10 01 P2 5 View fifth calibration point pH 12 45 P3 0 Viewing electrode data In pH measurement mode P3 1 pH electrode offset P3 2 pH electrode slope In mV or relative mV measurement mode P3 1 Relative mV offset SETUP P4 0 Unit configuration CGF P4 1 READY indicator on or off P4 2 Number of calibration points 2 3 4 or 5 SETUP MEAS P5 0 Reset to factory default P5 0 Reset to factory default settings cSt P50 23 pH 310 meter setup mode P1 0 Memory clear P1 0 Clear all stored readings P2 0 Viewing previous calibration data USA NIST or DIN standards P2 1 First calibration point plus time and date P2 2 Second calibration point plus time and date P2 3 Third calibration point plus time and date P2 4 Fourth calibration point plus time and date P2 5 Fifth calibration
5. Relative mV Calibration Temperature Calibration MEASUREMENT Automatic Temperature Compensation Manual Temperature Compensation Taking Measurements HOLD FUNCTION MEMORY FUNCTION Memory Input Memory Recall ADVANCED SETUP FUNCTIONS Advanced SET UP Mode Overview P 1 0 Memory Clear CLr P2 0 Viewing previous calibration data P3 0 Viewing electrode data P4 0 Unit configuration P5 0 Resetting to factory default settings P5 0 Setting the real time clock P6 0 Resetting to factory default settings PROBE CARE AND MAINTENANCE TROUBLE SHOOTING GUIDE ERROR MESSAGES SPECIFICATIONS ACCESSORIES ADDENDUM 1 METER FACTORY DEFAULT SETTINGS WARRANTY RETURN OF ITEMS 1 INTRODUCTION Thank you for selecting this meter The waterproof pH 300 310 Hand held meter is a microprocessor based instrument that is designed to be handy and user friendly It is capable of measuring pH mV and temperature It is designed to be handy and capable of allowing one hand operation It is completely WATERPROOF and it FLOATS This meter has many user friendly features all of which are completely accessible through the water resistant membrane keypad Your meter includes a temperature probe two electrode holders batteries instruction manual and a warranty card Complete portable testing versions including a rugged carrying case and calibration solutions are also available Refer to the Accessories section for more information
6. See Figure 31 32 Figure 31 P4 3 Select calibration buffer sets pH 310 meter only P4 4 Selecting C or F Available in pH 310 meter only The pH 310 meter lets you select between C and F units for temperature readings From measurement mode f 2 See Figure 32 Press SETUP key to enter Set Up mode Press the MI A or MR keys to scroll through subgroups until you view parameter P4 0 A 6 Press the ENTER key four times to select parameter 4 4 Press the MI A or MR keys to toggle between C and F Press the ENTER key to confirm selection and to return to the subgroup menu Press the CAL MEAS key to return to measurement mode Figure 32 P4 4 Select temperature units pH 310 meter only 33 7 6 P5 0 Resetting to factory default settings Available in pH 300 meter only In the pH 300 meter Program 5 lets you reset all parameters to factory default settings This clears all calibration data memory and any other setup functions you might have changed From measurement mode 13 2 Press SETUP key to enter Set Up mode Press the MI A or MR keys to scroll through subgroups until you view parameter P5 0 Press the ENTER key to enter parameter P5 0 See Figure 33 Press the MI A or MR keys to toggle between NO and YES NO retains current settings YES resets to factory default settings Press the ENTER key to confirm selection and to ret
7. date 11 Press the ENTER key to confirm the date and move to hour selection The hour digits will flash See Figure 36 next page 35 Press the MI A or MR keys to toggle to the correct hour Note the AM and PM indicator on the lower portion of the display Press the ENTER key to confirm the hour and move to minute selection The minute digits will flash Press the MI A or MR keys to toggle to the correct minutes Press the ENTER key to confirm the minutes and move to second digits will flash See Figure 35 Press the MI A or MR keys to toggle to the correct seconds Figure 35 P5 0 Setting month and date pH 310 meter only 17 Press the ENTER key to confirm the seconds and return to century selection 18 Press the CAL MEAS key to return to the subgroup menu Press the CAL MEAS key again to return to measurement mode NOTES Press the CAL MEAS key at any point while setting the time to return to the subgroup menu Figure 36 P5 0 Select time pH 310 meter only 36 7 8 P6 0 Resetting to factory default settings Available in pH 310 meter only In the pH 310 meter Program 6 lets you reset all parameters SETUP MEAS to factory default settings This clears all calibration data St memory and any other setup functions you might have r changed From measurement mode 1 Press SETUP key to enter Set Up mode 2 Press the MI A or
8. ATC probe or electrode into a solution of known temperature i e a temperature bath Allow time for the temperature probe to stabilize 19 Scroll with the MI A or MR keys to set the correct temperature value i e the temperature of the temperature bath You can adjust the reading in increments of 0 1 C ECI s 20 Once you have selected the correct temperature press the ENTER key The meter automatically returns to pH measurement mode See Figure 12 NOTES MEAS pH e You can offset the temperature reading up to 5 C from E 16 original reading d c To exit this program without confirming the temperature gep ATC calibration value DO NOT press ENTER Press Figure 12 Temperature CAL MEAS instead calibration 13 4 MEASUREMENT This meter is capable of taking measurements with automatic or manual temperature compensation Automatic temperature compensation only occurs when a temperature sensor is plugged into the meter If there is no temperature sensor plugged into the meter the default manual temperature setting is automatically 25 C You can manually set the temperature to match your working conditions using a separate thermometer 4 1 Automatic Temperature Compensation For automatic temperature compensation ATC simply plug the temperature probe into the meter see page 6 for directions The ATC indicator will light up on the LCD See figure 13 MEAS 705 C NOTE If you are usin
9. Electrode offset and slope From pH measurement mode 1 Press the SETUP key to enter Set Up mode 2 Press the MI A or MR keys to scroll through subgroups until you view parameter P3 0 3 Press the ENTER key to select parameter 3 1 4 The display shows the electrode offset value It is the mV offset at pH 7 00 If you have not calibrated at any buffer the primary display shows 0 0 mV 5 Press the ENTER key to proceed to electrode slope display 6 The display shows electrode slope in percentage Slope displayed is the average slope based on the pH calibrations Default setting is 100 0 7 At any point you can press the CAL MEAS key to return to measurement mode See figure 26 27 Figure 26 Viewing electrode s offset and slope status from pH measurement mode From mV measurement mode If you are in mV measurement mode the display shows the relative mV offset You can adjust the relative mV offset in relative mV calibration mode See page 12 for instructions 6 7 If necessary press the MODE key to select mV measurement mode From mV measurement mode press the SETUP key to enter Set Up mode Press the MI A or MR keys to scroll through subgroups until you view parameter P3 0 Press the ENTER key to select parameter 3 1 The display shows the electrode offset value It is the relative mV offset If you have not calibrated at any mV standards the primary display shows 0 00 mV Pr
10. MR keys to scroll through subgroups until you view parameter P6 0 SETUP MEAS 3 Press the ENTER key to enter parameter P6 0 r Gt 4 Press the MI A or MR keys to toggle between NO and YES YES NO retains current settings YES resets to factory default settings Figure 37 P6 0 Reset to factory 5 Press the ENTER key to confirm selection and to default values pH 310 meter only return to the measurement mode Otherwise press CAL MEAS key to return to measurement mode without resetting to factory default See Figure 37 37 8 PROBE CARE AND MAINTENANCE Since your pH electrode is susceptible to dirt and contamination clean it every one to three months depending on the extent and condition of use NOTE For specialty electrode care consult the instruction manual included with your electrode pH electrode storage For best results always keep the pH bulb wet Use the protective electrode storage bottle or rubber cap filled with electrode storage solution to store your electrode Also you can store in a pH 4 buffer with 1 100 part of saturated KCI Other pH buffers are OK for storage but NEVER use distilled water for storage After measuring 1 Rinse the pH electrode and reference junction in de ionized water 2 Store the electrode as recommended above in pH electrode storage or as recommended by the manufacturer 3 Prior to next use rinse the liquid junction with de
11. and temperature mV or relative mV and temperature For pH 300 meter The pH 300 meter can store up to 16 sets of data in any combination of values For example you can store 7 pH and 9 mV values For pH 310 meter The pH 310 meter can store up to 50 sets of data in any combination of values In addition to the standard data set the pH 310 meter also stores the date and time the reading was stored To store a reading 1 During any measurement function MEAS press MI key to input any data into the memory 2 MEM Sto and memory number will flash The meter then returns to measurement mode See figure 17 NOTE If the memory is full the first value stored will be erased to create space for the new value 18 MEAS ne 823 rad SEO ae MEAS 5569 P24 StU MEM Pai Figure 17 Memory Input 6 2 Memory Recall This function recalls the previous readings stored in the memory You can only access MR from the measurement mode Memory recall is in Last In First Out order To recall readings i 3 Press the MR key once to retrieve the last reading stored The memory location screen MEM Loc and the memory number will flash on the display Press the ENTER key to recall the reading stored under that memory number For pH 300 meter only Press the ENTER key again to return to the memory location screen See Figure 18 For pH 310 meter only Pre
12. ionized water and tap dry never wipe electrode NOTE If this does not restore electrode to normal response see Reactivating the pH electrode section below pH electrode cleaning Salt deposits Dissolve the deposits by immersing the electrode in tap water for ten to fifteen minutes Then thoroughly rinse with distilled water Oil Grease film wash electrode pH bulb gently in some detergent and water Rinse electrode tip with distilled water or use a general purpose electrode cleaner see the Accessories section for ordering information Clogged reference junction Heat a diluted KCI solution to 60 to 80 C Place the sensing part of the electrode into the heated solution for about 10 minutes Allow the electrode to cool in some unheated KCI solution Protein deposits Prepare a 1 pepsin solution in 0 1 M of HCI Set the electrode in the solution for five to ten minutes Rinse the electrode with distilled water 38 Reactivating the pH electrode If stored and cleaned properly your pH electrode should be ready for immediate use However a dehydrated bulb may cause sluggish response To rehydrate the bulb immerse the electrode in a pH 4 buffer solution for 10 to 30 minutes If this fails the electrode requires activation Never touch or rub glass bulb Contact builds up an electrostatic charge pH electrode activation for glass body electrodes only WARNING Only qualified persons proficient with the
13. sample d External noise pickup or induction caused by nearby electric motor e Broken probe a Tap probe to remove bubbles b Clean the probe and re calibrate c Make sure sample entirely covers the probe sensors d Move or switch off interfering motor e Replace probe See the Accessories section page 43 Slow response a Dirty Oily probe a Clean probe See Probe Care amp Maintenance page 38 39 10 ERROR MESSAGES LCD Display Indicates Cause Solution Err annunciator Unrecognized input from keypad Wrong input in selected mode Release key Select valid operations depending on mode CAL amp Err annunciators on Buffer and electrode indicators blink Calibration error Wrong value input at calibration Dirty probe Check your input value clean probe See Calibration sections or Probe Maintenance section Battery indicator blinks Low battery level Need new batteries or battery connection is bad Clean battery contacts Replace batteries with fresh ones noting polarity Err 1 in primary display Memory write error Instrument too old gt 10 years Hardware failure Turn meter on and off again If message persists return unit Err 2 in primary display Memory checksum error Hardware failure Turn meter on and off again If message persists return
14. 5 6 79 9 23 amp No Yes 12 75 C A E T E e A a T bawandTineSamme o o foe CO E Battery Life Life gt gt 200hours f hours Dimension Weight Meter 19 x 10 x 6 cm 320 g Boxed 24 x 23 x 7 cm 700 g 42 12 ACCESSORIES Replacement Meter and Meter accessories Item Eutech Instruments Oakton Instruments Order Code Order Code Waterproof pH 300 Hand held pH meter in ECPHWP300 02K 35617 70 carrying case kit Complete with temperature probe pH electrode 1m cable and pH carrying kit set Waterproof pH 310 Hand held pH meter in ECPHWP310 02K 35618 72 carrying case kit Complete with temperature probe pH electrode 1m cable and pH carrying kit set Hard plastic carrying case ki meter for pH 300 310 ECPHWPKIT with 3 pH buffer solution pH 4 01 7 00 amp 10 01 in 60 ml bottle and 1 empty rinse waste water bottle 480 ml 35614 79 Includes five of each pH buffer pouch Waterproof pH 300 Hand held pH meter ECPHWP300 01 35618 02 complete with temperature probe only Temperature probe sold separately Waterproof pH 310 Hand held pH meter ECPHWP310 01 35618 12 complete with temperature probe only Temperature probe sold separately Temperature probe for waterproof pH 300 amp pH ECPHWPTEM01W 35618 05 310 meters Plastic body double junction pH electrode with 1 ECFC7252201B 35641 51 m cable 3 in 1 pH Temperature comb
15. AS key to return to measurement mode Figure 23 P1 0 Memory Clear 25 7 3 P2 0 Viewing previous calibration data This mode lets you recall previous calibration data which helps you know when to re calibrate your meter This is a view only mode From measurement mode 1 Press the SETUP key to enter Set up mode 2 Press the MI A or MR keys to scroll through subgroups until you view parameter P2 0 3 pH 300 meter only Press the ENTER key repeatedly to view previous calibration data See Figure 24 pH 310 meter only Press the ENTER key repeatedly to view previous calibration data The meter will first display the calibration point and then display the date and time of calibration See Figure 25 4 When you have scrolled through all calibration data you will automatically return to the subgroup menu Press CAL MEAS key to return to measurement mode Figure 24 P2 0 View calibration data Figure 25 Time date appears on pH 310 meter display only NOTES If there is no previous calibration data at a particular point the primary display will show 26 7 4 P3 0 Viewing electrode data Program 3 has two view only options that let you check the electrode parameters for diagnostic purposes From pH measurement mode you can view the electrode s offset and slope values From mV measurement mode you can view the electrode s relative mV offset value P3 1 amp P3 2
16. Instruction Manual pH 300 310 Waterproof Hand held pH mV Temperature Meter OAK ON Ret AUMENTE 68X248901 Technology Made Easy Rev 9 Jun 07 CE 190 9001 Part of Thermo Fisher Scientific Preface This manual serves to explain the use of the waterproof pH 300 310 hand held meter It functions in two ways firstly as a step by step guide to help you to operate the meter Secondly it serves as a handy reference guide It is written to cover as many anticipated applications of the waterproof pH 300 310 meter as possible If there are doubts in the use of the meter please do not hesitate to contact the nearest Authorized Distributor Eutech Instruments Oakton Instruments cannot accept any responsibility for damage or malfunction to the meter caused by improper use of the instrument The information presented in this manual is subject to change without notice as improvements are made and does not represent a commitment on the part of Eutech Instruments Pte Ltd Oakton Instruments Copyright 1999 Eutech Instruments Pte Ltd Oakton Instruments All rights reserved TABLE OF CONTENTS INTRODUCTION DISPLAY AND KEYPAD FUNCTIONS Display Keypad Inserting the Batteries Connecting the Electrode and Temperature Probe Attaching the Electrode Holder to the Meter Inserting the Electrode into the Electrode Holder CALIBRATION Important Information on Meter Calibration Preparing the Meter for Calibration PH Calibration
17. TUP Takes you into the SETUP mode This mode lets you customize meter preference and defaults and view calibration and electrode offset data Figure 2 Keypad 2 3 Inserting the Batteries Four AAA batteries are included with your meter 1 Use a Philips screwdriver to remove the two screws holding the battery cover See Figure 3 below Remove battery cover to expose batteries Insert batteries Follow the diagram inside the cover for correct polarity Replace the battery cover into its original position using the two screws removed earlier Remove these two screws to access battery compartment Battery compartment Figure 3 Back panel of meter showing battery compartment 2 4 Connecting the Electrode and Temperature Probe The waterproof pH 300 310 handheld pH meter uses any standard pH ORP or ISE electrode with a BNC connector For Automatic Temperature Compensation ATC this meter requires a temperature probe with a special 6 pin connector Use either All electrode with a BNC connector and a separate temperature probe with 6 pin connector EC PHWPTEM 01W 35618 05 e A 3 in 1 combination pH electrode with temperature probe designed specifically for pH 300 and pH 310 waterproof meters Refer to Accessories section on page 43 for more information on temperature probe and other electrodes NOTE Keep connectors dry and clean Do not touch connector with soiled hands
18. Up mode 2 Press the MI A or MR keys to scroll through subgroups until you view parameter P4 0 3 Press the ENTER key twice to select parameter 4 2 4 Press the MI A or MR keys to select 2 3 4 or 5 point pH calibration up to 6 points for DIN calibration set with pH 310 meter 5 Press the ENTER key to confirm selection and to return to the subgroup menu Press CAL MEAS key to return to measurement mode See Figure 30 31 SETUP ME E ng P42 SETUP IF P42 SETUP READY l D ON Figure 30 P4 2 Select number of pH calibration points P4 3 Calibration buffer selection sets Available in pH 310 meter only The pH 310 meter lets you select between three standard calibration buffer sets depending on your requirements The available sets are USA NIST and DIN standard calibration buffers From measurement mode 1 2 Press SETUP key to enter Set Up mode Press the MI A or MR keys to scroll through subgroups until you view parameter P4 0 Press the ENTER key three times to select parameter 4 3 Press the MI A or MR keys to select the buffer set you require e USA buffers pH 1 68 4 01 7 00 10 01 and 12 45 e NIST buffers pH 1 68 4 01 6 86 9 18 and 12 45 e DIN buffers pH 1 09 3 06 4 65 6 79 9 23 and 12 75 Press the ENTER key to confirm selection and to return to the subgroup menu Press CAL MEAS key to return to measurement mode
19. able for more than 5 seconds the auto endpoint feature will automatically hold the reading The hold indicator appears on the left side of the display Press the HOLD key to release the reading Switch the Auto endpoint feature on or off in SETUP program P 4 1 see page 30 for instructions 16 5 HOLD FUNCTION This feature lets you freeze the value of the pH mV or Relative mV and temperature readings for a delayed observation HOLD can be used any time when in MEAS MEAS pH ice 6 89 1 To hold a measurement press the HOLD key while in measurement mode HOLD will appear on the display See Figure 16 CO Te 2 To release the held value press HOLD again Continue to take measurements Figure 16 HOLD feature NOTE This meter shuts off automatically 30 minutes after last key is pressed If the meter is shut off either automatically or manually the HOLD value will be lost For longer storage use the Memory functions described in page 18 NOTE for pH 310 model only The pH 310 meter has an auto endpoint feature When this feature is switched on the display will automatically HOLD a reading that has been stable for more than 5 seconds The HOLD indicator appears Press the HOLD key to release the reading To switch on or off the auto endpoint feature see SETUP Program P 4 1 on page 30 17 6 MEMORY FUNCTION 6 1 Memory Input Your meter stores data in sets pH
20. age solution If storage solution is not available use pH 4 01 or 7 00 buffer solution Do not reuse buffer solutions after calibration Contaminants in the solution can affect the calibration and eventually the accuracy of the measurements See page 43 for information on our high quality pH buffer solutions pH 300 meter calibration The pH 300 meter is capable of up to 5 point pH calibration to ensure accuracy across the entire pH range of the meter Select from the following buffer options USA buffers pH 1 68 4 01 7 00 10 01 and 12 45 The meter automatically recognizes and calibrates to these standard buffer values which makes pH calibration faster and easier pH 310 meter calibration The pH 310 meter features three separate internationally recognized buffer standards Select the buffer standard you require in SETUP mode Program 4 0 see pages 27 amp 34 for more information The pH 310 meter is capable of up to 6 point pH calibration depending on the buffer standard selection Select from the following buffer options USA buffers pH 1 68 4 01 7 00 10 01 and 12 45 NIST buffers pH 1 68 4 01 6 86 9 18 and 12 45 DIN buffers pH 1 09 3 06 4 65 6 79 9 23 and 12 75 The meter automatically recognizes and calibrates to these standard buffer values which makes pH calibration faster and easier 3 3 pH Calibration NOTE We recommend that you perform at least 2 point calibration using st
21. andard buffers that bracket one above and one below the expected sample range You can perform a 1 point calibration but make sure that the buffer value is close to the sample value you are measuring If necessary press the MODE key to select pH mode The pH indicator appears in the upper right hand corner of the display Rinse the probe thoroughly with de ionized water or a rinse solution Do not wipe the probe this causes a build up of electrostatic charge on the glass surface Dip the probe into the calibration buffer The end of the probe must be completely immersed into the sample Stir the probe gently to create a homogeneous sample Press CAL MEAS to enter pH calibration mode The CAL indicator will be shown The primary display will show the measured reading while the smaller secondary display will indicate the pH standard buffer solution Wait for the measured pH value to stabilize Press ENTER to confirm calibration The meter is now calibrated to the current buffer See figure 8 10 READY READY MEAS 7 167 22 3 7 16 100 1 00 100 Figure 8 pH Calibration H H 7 Rinse the probe with de ionized water or a rinse solution and place it in the next pH buffer 8 Follow steps 5 and 6 for additional calibration points See Figure 9 9 When all the calibration points as set in the Unit Configuration Setup see P4 2 on page 31 are completed the meter returns to Me
22. asurement mode automatically However if you wish to terminate the calibration without completing the number of points as set in the Unit Configuration Setup menu press CAL MEAS to return to pH measurement mode NOTES Figure 9 Next point calibration for pH 4 01 To exit from pH calibration mode without confirming calibration DO NOT press ENTER in step 6 Press CAL MEAS instead If the selected buffer value is not within 1 0 pH from the measured pH value the electrode and buffer icon blink and the ERR annunciator appears in the lower left corner of the display Figure 10 To limit the number of pH buffer values available during calibration see SETUP section P4 2 on page 31 Figure 10 Err message and electrode icon will appear if incorrect buffer are used 11 3 4 Relative mV Calibration While in the measurement function press MODE to enter the mV mode The mV indicator appears in the upper right hand corner See figure at right Press the CAL MEAS key The CAL indicator appears above the primary display The primary display shows the relative mV reading and the secondary display shows the absolute mV value NOTE If you have never calibrated relative mV or if the meter has been reset the value shown in the primary display is the same as the absolute mV value NOTE R annunciator will appear once mV calibration is performed an indication of mV offset 12 Press the MI A or MR Wkeys to enter
23. e changed The following settings will remain as you have set them e Temperature unit of measure C or F only for pH 310 meter The temperature offset calibration value Clock function only for pH 310 meter Type Parameter P No Default Remarks CLr Memory clear P1 0 No Retains your current settings CAL View pH calibration data P2 1 Calibration data for 1st buffer P2 2 Calibration data for 2nd buffer P2 3 Calibration data for 3rd buffer P2 4 Calibration data for 4th buffer P2 5 Calibration data for 5th buffer only in pH 310 meter P2 6 Calibration data for 6th buffer DIN only ELE View electrode offset P3 1 0 00 mV No offset adjustment View electrode slope P3 2 100 0 No slope adjustment View relative mV offset P3 3 OmV No mV adjustment COF Ready indicator P4 1 Ready On Ready indicator on auto endpoint off pH calibration points P4 2 3 3 pH calibration points available 1 5 pt range Calibration buffer selection P4 3 USA sets pH 310 meter only C or F pH 310 meter P4 4 No default C or F remains as selected CLO Setting year date and time P5 0 No default Year date and time remain as selected in pH 310 meter only rst pH factory default For pH 300 meter P5 0 No Retains your current settings For pH 310 meter P6 0 14 WARRANTY This meter is supplied with a three year warranty six month warran
24. ed water before use to remove any impurities adhering to the probe body If the pH electrode has dehydrated Figure 15 Measurement mode soak it for 30 minutes in electrode storage solution or 2M 4M KCI solution sold separately 2 Press ON to switch on meter The MEAS annunciator appears on the top center of the LCD The ATC indicator appears in the lower right hand corner to indicator Automatic Temperature Compensation see page 15 to set Manual Temperature Compensation See Figure 15 3 Dip the probe into the sample When dipping the probe into the sample the sensor or the glass bulb of the electrode must be completely immersed into the sample Stir the probe gently in the sample to create a homogeneous sample 4 Allow time for the reading to stabilize Note the reading on the display 5 To toggle between pH and mV or Rel mV readings press the MODE key Taking measurements with READY indicator selected on If the READY indicator has been activated the READY annunciator lights when the reading is stable Switch the READY indicator on or off in SETUP program P 4 1 See page 30 for directions The READY indicator appears and the reading holds until the measured value exceeds the tolerance 0 02 pH 0 8 mV lt 400 1 2 mV gt 400 Then the READY annunciator turns off Taking measurements with the auto endpoint feature selected on NOTE This feature is available on model pH 310 only When a reading is st
25. ess the ENTER key to return to P3 0 Figure 27 View electrode offset value from mV measurement mode At any point you can press the CAL MEAS key to return to measurement mode See figure 27 28 7 5 P4 0 Unit configuration This subgroup program allows you to customize the meter to your specific needs You can program the meter to 1 Select READY function ON or OFF pH 310 allows you an additional feature of switching the Auto endpoint function on or off SETUP 2 Select the number of pH calibration points RERS dy 3 Select between three standard calibration buffer sets for ON r pH 310 meter only 4 Select between C and F units for temperature readings for pH 310 meter only Figure 28 on the right shows the setup sequence for this program subgroup NOTE Programs P4 3 and P4 4 is only available in pH 310 meter SETUP P YY Figure 28 P4 0 Unit configuration program P4 3 and P4 4 available on pH 310 meter only 29 P4 1 READY Indicator and auto endpoint function Program P4 1 lets you select READY indicator on to SETUP indicate when the reading is stable or select READY READY LI indicator off for faster meter response C d ba pH 310 meter only Program P4 1 also lets you switch the Auto endpoint function on or off Select auto endpoint on to hold the reading when it is stable for more than 5 seconds The display automatically freezes and the HOLD i
26. f in mV measurement mode the meter will be in mV measurement mode when you switch the meter on HOLD Freezes the measured reading To activate press HOLD while in measurement mode To release press HOLD again pH 310 model only When auto endpoint feature is switched on it automatically holds reading after 5 seconds of stability The HOLD indicator appears on the display Press HOLD to release auto endpoint feature MODE Selects the measurement parameter Press MODE to toggle between pH mV or relative mV and date time date time feature available on pH 310 model only CAL MEAS Toggles between Calibration and Measurement mode 1 If you were in pH Measurement mode press CAL MEAS to enter pH Calibration mode NOTE Temperature calibration is available from pH Calibration mode See page 13 for directions 2 If you were in mV Measurement mode press CAL MEAS to enter mV Calibration mode While in SETUP main menu pressing CAL MEAS takes you out directly into the measurement mode ENTER t To confirm your calibration values in Calibration mode 2 To confirm selections in SETUP mode In Measurement mode MIVA amp Press MI A memory input to store values with its corresponding temperature values in the MR memory Press MR memory recall to retrieve data from memory In SETUP mode Press to scroll through the setup subgroup programs In mV calibration mode Press to adjust the calibration value SE
27. g a temperature probe the p 45 He probe must be submersed in the liquid you are measuring Figure 13 ATC annunciator will light up when connected to temperature probe 14 4 2 Manual Temperature Compensation IMPORTANT For manual compensation you must disconnect the temperature probe see page 6 1 Switch the meter on Press the MODE key to select pH mode 2 Press the CAL MEAS key to enter pH calibration mode The CAL indicator will appear above the primary display 3 While in pH calibration mode press the MODE key to enter temperature calibration mode The primary display shows the current temperature setting and the secondary display shows the default value 25 C 4 Check the temperature of your sample using an accurate thermometer 5 Press the MI A or MR keys to set the temperature to the measured value from step 4 6 Press ENTER to confirm the selected temperature and to return to the pH measurement mode See Figure 14 The meter will now compensate pH readings for the manually set temperature NOTES Figure 14 Manual temperature compensation To exit this program without confirming the manual temperature compensation value DO NOT press ENTER in step 6 Press CAL MEAS instead 15 4 3 Taking Measurements Be sure to remove the electrode soaker bottle or protective rubber cap on the electrode before measurement To take readings 1 Rinse the probe with de ionized or distill
28. ination electrode ECFC7352901W 35808 71 with 1 m cable for waterproof pH 300 310 meter Calibration Solutions Item Eutech Instruments Oakton Instruments Order Code Order Code pH 4 01 buffer solution 480 ml bottle 1 pint EC BU 4BT 00654 00 pH 7 00 buffer solution 480 ml bottle 1 pint EC BU 7BT 00654 04 pH 10 01 buffer solution 480 ml bottle 1 pint EC BU 10BT 00654 08 pH 4 01 buffer sachets 20 ml x 20 pcs EC BU 4BS 35653 01 pH 7 00 buffer sachets 20 ml x 20 pcs EC BU 7BS 35653 02 pH 10 01 buffer sachets 20 ml x 20 pcs EC BU 10BS 35653 03 pH De ionized water rinse sachets 20 ml x 20 EC RIN WT 35653 00 pcs pH sachet assortment pack 5 each of pH 4 01 EC AST PK 35653 04 PH 7 00 pH 10 01 and de ionized water sachets per box Protein cleaning solution for pH electrode EC DPC BT 00653 06 Storage solution for pH electrode EC RE 005 00653 04 Note pH buffer solutions 480 ml bottle 1 pint have 0 01 pH accuracy at 25 TC Sachets are individually sealed single use pouches containing 20 ml of fresh contamination free calibration solution pH buffer sachets have 0 01 pH accuracy at 25 44 Instru ction Many pitacoayg Cal Carrying Case Kit for pH 300 310 45 13 ADDENDUM 1 METER FACTORY DEFAULT SETTINGS Resetting the meter to factory default settings clears all calibration data and most other setup functions you might hav
29. nd appearance of products without notice 48 For more information on Eutech Instruments Oakton Instruments products contact your nearest distributor or visit our website listed below Oakton Instruments Eutech Instruments Pte Ltd Distributed by P O Box 5136 Blk 55 Ayer Rajah Crescent Vernon Hills IL 60061 USA 04 16 24 Singapore 139949 Tel 1 888 462 5866 Tel 65 6778 6876 Fax 1 847 247 2984 Fax 65 6773 0836 E mail info 4oakton com E mail Web site eutech thermofisher com Web site www eutechinst com www 4oakton com
30. ndicator appears on the left side of the display Press the HOLD key to release the display and access other functions Select READY U auto endpoint off to deactivate this feature Cc d From measurement mode 1 Press SETUP key to enter Set Up mode 2 Press the MI A or MR keys to scroll through subgroups until you view parameter P4 0 READY 3 Press the ENTER key to select parameter 4 1 HOLD C dy ON 4 Press the MI A or MR _ keys to select the configuration you require p Uy l OFF switches the READY indicatory off ON switches the READY indicator on Figure 29 P4 1 Selecting READY pH 310 meter only ON and HOLD together switches function the auto endpoint feature on 5 Press the ENTER key to confirm selection and to proceed to step 4 of P4 2 Press the CAL MEAS key to return to measurement mode NOTES Meter default is set for READY indicator on and auto endpoint function off The READY indicator appears and the reading holds until the measured value exceeds the tolerance 0 02 pH 0 8 mV lt 400 mV 1 2 mV gt 400 Then the READY annunciator turns off 30 P4 2 Selecting number of pH calibration points Program P4 2 lets you select the number of calibration points that appear in pH calibration mode 2 3 4 or 5 This lets the meter scroll through the calibration points more quickly if you regularly calibrate at less than 5 points From measurement mode 1 Press SETUP key to enter Set
31. point plus time and date P2 6 Sixth calibration point plus time and date only for DIN buffer set P3 0 Viewing electrode data In pH measurement mode P3 1 pH electrode offset P3 2 pH electrode slope In mV or relative mV measurement mode P3 1 Relative mV offset P4 0 Unit configuration CLO P58 SETUP COF P4 1 READY indicator on or off P4 2 Number of calibration points 2 3 4 or 5 or p up 6 for DIN buffer set only r P4 3 Calibration buffer selection sets P4 4 Selecting C or F SETUP P5 0 Setting Clock e Setting year Setting date month day Setting time hour minute second SETUP MEAS cSt P60 P6 0 Reset to factory default P6 0 Reset to factory default settings 24 7 2 P1 0 Memory Clear CLr Use this parameter to clear all memory values when you need to store a new series of values This lets you avoid confusing the old values with the new ones NO is the default setting NOTE Selecting YES will wipe out all memory From measurement mode 1 Press the SETUP key to enter Set Up mode 2 Press the MI A or MR keys to scroll through subgroups until you view the parameter P1 0 3 Press the ENTER key to enter parameter P1 0 4 Press the MI A or MR keys to toggle between NO and YES NO retains current memory YES clears all memory See Figure 23 5 Press the ENTER key to confirm selection and return to the subgroup menu Press CAL ME
32. rature probe Care must always be taken to avoid use of excessive force in the process of attaching these components 1 Locate the slot on the right hand side of the meter 2 Gently slide the flange of the holder into the slot on the Figure 5 Holder meter Make sure the holder is slot into right hand secured properly into the slot side of meter See figure 5 3 You can attach the electrode holder in different positions See figure 6 To attach a second electrode holder 4 Align the flange of the second electrode holder with the slot of the first holder 5 Slide the flange of the second holder into the slot of the first holder until the tops of the holders are aligned and Figure 6 Electrode can be placed in different positions with holder secure See figure 7 2 6 Inserting the Electrode into the Electrode Holder Do not use excessive force when inserting electrodes into the holders Insert the pH electrode into the opening of the first holder until Figure 7 Two holders the top housing of the electrode touches the top of the holder If you are using a separate temperature probe insert the probe into the opening of the second holder until the ridge on the housing touches the top of the holder NOTE The holder is designed for probes 12 mm in diameter Electrodes larger than 12 mm may not fit in the holder Forcing the electrode into the opening may damage the holder or your electrode 3 CALIBRATION
33. safe handling of dangerous chemicals should perform the procedure below Provide proper containers fume hoods ventilation and waste disposal Safety goggles and protective clothing must be worn while performing this procedure If possible replace with another electrode instead of performing this re activation procedure 1 oO GOB 3S Dip or stir the pH electrode in alcohol for 5 minutes Leave the electrode in tap water for 15 minutes Dip and stir the electrode in concentrate acid such as HCL or H2804 for five minutes Repeat Step 2 Dip and stir in strong base NaOH for five minutes Leave for 15 minutes in tap water Now test with standard calibration buffer solutions to see if the electrode yields acceptable results You may repeat step 3 through 6 up to three times for better response If the response does not improve then your electrode is no longer functioning Replace with a new electrode call your distributor for information 39 9 TROUBLE SHOOTING GUIDE Problem Cause Solution Power on but no display a Batteries not in place b Batteries not in correct polarity and position c Weak batteries a Check that batteries are in place and making good contact b Re insert batteries with correct polarity c Replace batteries or attach optional AC adapter Unstable readings a Air bubbles in probe b Dirty probe c Probe not deep enough in
34. ss the ENTER key again to view the date Month Day format and time Hour Minute format the reading was taken See Figure 19 Press ENTER key again to return to the memory location screen The display automatically moves to the next lower memory location screen See figure 20 19 Figure 18 Memory recall function 4 If necessary press the MI A key to select the next memory location screen press the MR key to select the previous memory location screen 5 Repeat steps 2 to 5 to review additional stored data sets 6 To exit Memory Recall press the MEAS key to return to the Measurement mode Figure 19 View date and time available only for pH 310 meter NOTES Readings stored in memory are retained even if the units are turned off To erase all readings stored in memory use the SETUP mode P1 0 on page 25 Figure 20 Next Memory Recall value 20 7 ADVANCED SETUP FUNCTIONS The advanced setup mode lets you customized your meter s preferences and defaults This meter features different sub groups that organize all setup parameters The sub groups are 1 P1 0 Memory clear CLr 2 P2 0 Viewing calibration data CAL 3 P3 0 Viewing electrode data ELE 4 P4 0 Unit configuration COF 5 P5 0 pH 300 only Reset to factory default settings rSt P5 0 pH 310 only Setting clock CLO 6 P6 0 pH 310 only Reset to factory default settings rSt
35. the relative mV value that matches your desired reading 13 Press the ENTER key to confirm the reading and to return to the measurement mode The primary display now shows the relative mV reading NOTES To view the mV offset value use the SETUP mode Program P3 1 See page 27 for instructions To reset all calibration and offset values in memory to the factory default settings use In pH 300 meter SETUP Program P 5 0 See page 34 In pH 310 meter SETUP Program P 6 0 See page 37 12 MEAS mV e334 245 Figure 11 mV calibration 3 5 Temperature Calibration MEAS 116 The temperature sensor is factory calibrated Calibrate the g temperature probe only if you suspect temperature errors that ce 3 ATC may have occurred over a long period of time or if you have a replacement probe Temperature Calibration 14 Make sure the ATC probe or temperature connector of the electrode is attached to the 6 pin connector The ATC annunciator will appear at the right hand side of the LCD 15 Switch the meter on Press the MODE key to select pH mode 16 Press the CAL MEAS key to enter pH calibration mode The CAL indicator will appear above the primary display 17 While in pH calibration mode press the MODE key to enter temperature calibration mode The primary display shows the temperature reading with last set offset and the secondary display shows the factory default temperature value 18 Dip the
36. ty for probe against significant deviations in material and workmanship If repair or adjustment is necessary and has not been the result of abuse or misuse within the designated period please return freight pre paid 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 Exclusions The warranty on your instrument shall not apply to defects resulting from Improper or inadequate maintenance by customer Unauthorized modification or misuse Operation outside of the environment specifications of the products 47 15 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 Oakton 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 reserves the right to make improvements in design construction a
37. unit Err 3 in primary display A D converter error Hardware error Turn meter on and off again If message persists return unit Err 4 in primary display Keypad error One or more keys on the keypad are stuck Turn meter on and off again If message persists return unit See Warranty and Return of Items on pages 47 and 48 If an error message appears in the primary display the upper row of larger digits switching off the meter and switching it on again may eliminate the error message Refer to diagram on right If error persists or the meter shows incorrect values return the meter For a complete diagram of the display see page 2 Err i 11 SPECIFICATIONS SPECIFICATIONS DESCRIPTIONS pH300 pH310 pH Range 2 00 to 16 00 pH Yes Yes Resolution Accuracy 0 01 pH 0 01 pH Yes Yes Slope Range 80 to 110 Temperature Range 10 to 110 C 14 to 230 F Resolution Accuracy 0 1 C 0 5 C 0 1 F 0 5 F BH Millivolt Range Extendea 199 9 to 199 9 mV Millivolt Range 1999 to 1999 mV pre ee eE Temperature Temperature Compensation Auto Manual from 0 to 100 C Manual from 0 to 100 C Number of calibration points 1to5 up to 6 for pH 310 using DIN Number of calibration buffers USA 1 68 4 01 7 00 10 01 81245 Yes Yes NIST 1 68 4 01 6 86 9 18 amp 12 45 DIN 1 09 3 06 4 6
38. urn to the measurement mode Otherwise press CAL MEAS key to return to measurement mode without resetting to factory default 34 SETUP MEAS rSE SETUP MEAS rSt YES Figure 33 P5 0 Reset to factory default values pH 300 meter only 7 7 P5 0 Setting the real time clock Available in pH 310 meter only The pH 310 meter features a real time calendar and clock This helps you to meet GLP Good Laboratory Practice standards From measurement mode 1 Press SETUP key to enter Set Up mode 2 Press the MI A or MR keys to scroll through subgroups until you view parameter P5 0 3 Press the ENTER key to enter parameter P5 0 The meter lets you select the century 19 or 20 The century digits will flash 4 Press the MI A or MR keys to toggle to the correct century 5 Press ENTER key to confirm the century and move to year selection The year digits will flash 6 Press the MI A or MR keys to toggle to the correct year See Figure 34 7 Press ENTER key to confirm the year and move to month selection The month digits will flash 8 Press the MI A or MR keys to toggle to the correct month 9 Press the ENTER key to confirm the month and move to date selection The date digits will flash See Figure 34 P5 0 Setting century and year pH 310 meter only Figure 35 next page 10 Press the MI A or MR keys to toggle to the correct
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