USER MANUAL AD110 and AD111 pH/°C and pH/mV/°C
Contents
1. the cable or cracks on the electrode stem or bulb If any scratches or cracks are present replace the electrode Rinse off any salt deposits with water Connectors must be perfectly clean and dry Cleaning Procedure Soak in deionized water for approximately 30 minutes then rinse the electrode thoroughly with deionized water and soak it in A7071S electrolyte solution for at least 1 hour before taking measurements 15 BATTERY REPLACEMENT When the batteries become weak the m 450 battery symbol on the LCD lights up Displa 1 H symbol lights up to indicate that the reading is When the low battery indicator appears only a few hours frozen on display of battery life is remaining It is recommended to re place the batteries immediately In addition when the battery level is too low to ensure reliable readings the 3 Measure unit oF the displayed reading pH mV Battery Error Prevention System AD111 only or C BEPS warns the user by displaying 2 Battery symbol lights up to indicate a low battery condition the Eb message and then switches Keyboard the instrument off 4 ON OFF key to turn the instrument ON and OFF To replace the batteries remove the battery compartment cover on the rear of the instrument and replace all four 1 5V AA batteries while paying attention to their polarity Batteries should only be replaced in a safe area and using the battery type specified in this instruction ma2. H 7 01 buffer was used press SET HOLD again to exit the calibration mode Otherwise if a dif ferent buffer was used the meter automatically re turns to normal mode For atwo point calibration immerse pH electrode and temperature probe in pH 7 01 buffer The meter automatically recognizes and displays the buffer value When the pH tag stops blinking press SET HOLD to confirm and store the first calibration point The meter will then ask for the sec ond buffer Immerse pH electrode and tempera ture probe in pH 4 01 or pH 10 01 buffer Note The pH electrode tip should be submersed at least 4 cm into the solution Note Thetemperature probe should be located as near as possible to the pH electrode Press the SET HOLD key to display the desired range pH mV only for e AD111 with the proper electrode or C temperature pH readings are automatically compensated for tem perature variations If the temperature probe is not con nected the compensation is done at a CSO fixed value of 25 C the C tag blinks 9 to advise the operator To freeze the display from measurement mode press and hold the SET HOLD key until the H tag lights up Ld Sy aed Press SET HOLD again to return to normal mode After use turn the meter OFF by pressing ON OFF and disconnect the probes Clean the pH electrode with water and insert the tip CALIBRATION protection bottle Never
3. NC connector and 1 m cable A7662 stainless steel temperature probe 1 m cable pH 4 01 and pH 7 01 calibration buffers 20 ml sachet each Batteries 4 x 1 5V AA alkaline nstruction manual WARRANTY Adwa warrants this product to be free of defects in material and workmanship as stated in the operating manual If repair or adjustment is necessary and has not been the result of abuse misuse or improper handling within the warranty pe riod please contact your dealer or the nearest Adwa Office for an RGA Returned Goods Authorization number to put on the outside of your package Warranted service will be made without charge The meter is warranted for a period of 2 years while probes are warranted for 6 months The warranty period commences from the original date of sale Warranty is only valid when the product is used under normal conditions and in accordance with the instruction manual The warranty is void if the instrument is repaired or serviced by unauthorized personnel not used in accordance to the instructions or if non Adwa accessories such as buffer solu tions probes etc are used in conjunction with the meter Adwa will not be held responsible for any accident whether directly or indirectly caused by the use of this instrument 17 PROBES AND SOLUTIONS A1230B A3230B A7662 A70004P A70007P A70010P A7071S pH electrode with Epoxy body tip protection bottle BNC connector and 1 m cable ORP el
4. USER MANUAL T AD110 and AD111 pH C and pH mV C Meters ADWA INSTRUMENTS Kft Als kik t sor 11 6726 Szeged Hungary Tel 36 62 317 878 Fax 36 62 550 610 e mail sales adwainstruments com www adwainstruments com MANADIIOR3 06 09 www adwainstruments com Dear Customer Thank you for choosing an Adwa product Please read carefully this manual before starting operations This instrument is in compliance with the EMC Directive 89 336 EEC and Low Voltage Directive 73 23 EEC for electrical equipments For additional technical information please e mail us at sales adwainstruments com NOTES TABLE OF CONTENTS Jntr d ctioN ensenis eien 4 Technical Data 2 retten tenete 5 Display and Keyboard Functions 6 Measurements nirin n trate te ero Dee te ot nane po tnus 8 Calibration e ceti iren Ree aa RR dns 11 Battery Replacement eeeeeeeeeeeeeeeeee 14 Electrode Maintenance eese 15 Probes and Solutions eeeeeeeeeeeeess 16 W attanty cie ntc itx 17 NI KM E 18 3 INTRODUCTION AD110 and AD111 are compact pH meters featuring automatic pH calibration hold function low battery indi cation temperature measurement and compensation In addition AD111 can measure in the mV range if using proper electrode Both models are supplied complete with e A1230B pH electrode with Epoxy body tip protec tion bottle B
5. ectrode with Epoxy body tip protection bottle BNC connector and 1 m cable Stainless steel temperature probe with m cable pH 4 01 buffer 20 ml sachet 25 pcs pH 7 01 buffer 20 ml sachet 25 pcs pH 10 01 buffer 20 ml sachet 25 pcs 3 5M KCl AgCI electrolyte solution for refillable electrodes 30 ml bottle TECHNICAL DATA AD110 AD111 Range 2 00 to 16 00 pH 5 0 to 105 0 C 1000 mV Resolution 0 01 pH 0 1 C 1 mV Accuracy 0 02 pH 0 5 C up to 60 C 1 C outside 2 mV pH Calibration Automatic 1 or 2 point with 3 memorized buffer values pH 4 01 7 01 and 10 01 mV Calibration Factory Temp Calibration Factory Temp Compensation Automatic or 25 C fixed Battery Type Life 4 x 1 5V AA approx 1500 hours of use Auto off After 8 minutes of non use Environment 0 to 50 C RH max 95 Dimensions 70 x 145 x 26 mm Weight Approx 200 g 5 DISPLAY AND KEYBOARD FUNCTIONS au AD 111 ELECTRODE MAINTENANCE Storage To minimize clogging and ensure a quick response time the glass bulb and the junction of the pH electrode should always be kept moist When not in use store the electrode with the tip protec tive bottle If you need to add some solution to the tip protective bottle use the A7071S electrolyte solution Periodic Maintenance Inspect electrode and cable The cable used for the con nection to the instrument must be intact and there must be no points of broken insulation on
6. let the electrode tip dry The instrument is factory calibrated for mV and tem perature ranges Contact your dealer for re calibra tion if necessary See Electrode Maintenance paragraph page 15 for details For pH calibration proceed as follows Enter the calibration mode by pressing CAL key 7 01 pH will start blinking For a single point calibration im merse pH electrode and temperature probe in any of the memorized buffers e g pH 4 01 7 01 or 10 01 The meter automatically recognizes and displays the buffer value When the pH tag stops blinking press SET HOLD to confirm the calibration ec point
7. nual 5 SET HOLD key to select measurement range con firm calibration points and freeze reading on display keep pressed 6 CAL key to enter exit calibration mode MEASUREMENTS Each instrument is supplied complete with four 1 5V batteries Install the batteries as explained in the Bat tery Replacement paragraph see page 14 Attach pH electrode and temperature probe to the con nectors on the top of the instrument Temperatura BNG connector for proar vorroulor Eller ORF elucliude Turn ON by pressing the ON OFF e key Remove the protective bottle from the pH electrode tip Immerse pH elec trode and temperature probe in the solution to be tested stir gently and wait for stable reading ABL When also this buffer is recognized press SET HOLD to confirm and store the second calibration point the meter will return to normal mode is used as buffer for calibration the LCD displays the Ec mes sage Note Ifasolution with wrong pH value t Note To exit the calibration mode press CAL at any time The meter will display dashes and then re turn to normal measurement mode e Note To reset to the default values after entering the calibration mode and before the first point is confirmed pH tag is blinking press and hold the SET HOLD key and then CAL Note For better accuracy it is recommended to carry out a 2 point calibration procedure 13 Note If the p
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