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HANNA HI 8614 HI 8614L HI8615 HI8615L pH ORP Transmitters Instruction Manual

1. pensation connect the 2 termi nals of the temperature probe HI 76608 optional to TEMP PROBE terminals If automatic temperature EE is not required short the TEMP lt PROBE terminals with a resis tance according to the external temperature Temperature C Resistance Ohms 0 1634 10 1774 20 1922 30 2078 40 2242 50 2412 60 2590 A 2 kohm resistor is factory mounted for 25 C temperature compensation pH CALIBRATION WITH AUTOMATIC TEMPERATURE COMPENSATION HI 8614 amp HI 8614L Initial preparation e Connect the pH electrode e to the BNC socket F e Connect the temperature m probe to the transmitter INPUT Pour small quantities of pH 7 01 and pH 4 01 solution into two clean beakers For accurate calibration use two beakers for each buffer solution the first one for rinsing the electrode the second one for calibration RINSE CALIBRATION EE HI 7007 HI 7007 To get accurate readings use pH 7 01 and pH 4 01 if you are going to measure acid samples or pH 7 01 and pH 10 01 for alkaline measurements Note with HI8614L the instruments display can be used during calibration without the need to connect the ammeter and the reading is directly expressed in pH units Procedure Disconnect the ve supply cable from VE LOOP terminal and connect a 20mA f s ammeter betw
2. ping If there is any noticeable damage notify your Dealer Note Save all packing material until you are sure that the instrument functions cor rectly All defective items must be re turned in the original packing material together with the supplied accessories GENERAL DESCRIPTION HI 8614 HI 8614L pH and HI 8615 HI 8615L ORP are 2 wire water resistant transmitters specially designed for long distance mea surement of pH or ORP in industrial applica tions Two versions are available the standard HI8614 and HI8615 and the HI8614L and HI8615L models with LCD The LCD allows easy verification and moni toring of measured values and provides easier calibration and maintainance The pH or ORP signal is transmitted in a 2 wire current loop in the range of 4 to 20 mA HI8614 and HI8614L can be connected to the Hanna process instruments HI8510T HI8710T or HI8711T or to any recorder computer or data monitoring device that ac cepts 4 to 20 mA input HI8615 and HI8615L can be connected to the Hanna meters HI8512T HI8720T or to any recorder computer or data monitor that accepts 4 to 20 mA input 3 The transmitters use a universal BNC socket for quick and secure connection to any elec trode with a BNC connector For HI8614 and HI8614L the temperature compensation is performed by the transmitter s ATC circuitry if the temperature probe HI 76608 optional is attached If ATC is not required it is possible
3. Japan Tel 03 3258 9565 e Fax 03 3258 9567 Korea Tel 02 2278 5147 e Fax 02 2264 1729 Malaysia Tel 603 5638 9940 Fax 603 5638 9829 Singapore Tel 6296 7118 e Fax 6291 6906 South Africa Tel 011 615 6076 Fax 011 615 8582 Taiwan Tel 886 2 2739 3014 Fax 886 2 2739 2983 Thailand Tel 66 2619 0708 e Fax 66 2619 0061 United Kingdom Tel 01525 850 855 Fax 01525 853 668 USA Tel 401 765 7500 Fax 401 765 7575 For e mail contacts and complete list of Sales and Technical offices please see www hannainst com EU LHANVIW SU L L
4. cable Pt plastic body built in amplifier 3 4 x 16 UNF DIA g DIA NN dy H 38 5mm LT HI41105 Screw type connector Au glass body HI4130B 3 BNC connector 3 m 9 9 cable Au glass body M13 x 1 5 94 16 UNF DIA 12mm e DIA j Jm 16 DIA ont fh a Set H 38 5mm Ee eae HI 4110S HI 4130B 3 HI4932B 5 BNC connector 5m 16 5 cable Au plastic body built in amplifier 3 4 x 16 UNF DIA 12mm 32 EXTENSION CABLES FOR SCREW TYPE ELECTRODES ONLY SCREW TO BNC CON NECTOR CONNECTOR AND 3 0 mm 0 12 CABLE WITH BNC CONNECT TO CONNECT TO THE SCREW TYPE EI gt r BNC SOCKET OF THE METER ELECTRODES HI7855 1 Extension cable 1 m 3 3 long HI7855 3 Extension cable 3 m 9 9 long HI7855 5 Extension cable 5 m 16 5 long HI7855 10 Extension cable 10 m 33 long HI7855 15 Extension cable 15m 49 5 long OTHER ACCESSORIES BL PUMPS _Dosingpumpswithflowratefrom 1 5 to 20 Iph HI98501 Pocket size thermometer with penetration probe and 0 1 C resolution range 50 0 to 150 0 C HI6050 A HI6051 Submersible electrode holders HI 6054 amp HI 6057 Electrode holders for in line applications HI 7871 amp HI 7873 Levelcontrollers HI8427 pH ORP electrode simulator HI931001 pH ORP electrode simulator with LCD 33 WARRANTY All Hanna Instruments meters are warranted for two years against defects in workman ship and
5. controller In this case slight adjust ment can be made on the indicator controller even if the whole system cali bration is advised always starting from the transmitter 12 008 mA ELECTRODE CONDITIONING AND MAINTENANCE i Reference Filling Holes Sensitive Wire oe Reference Wire gt SS Reference Junction Glass 4 Bulb Plastic Body Junction Platinum or HA Gold tip Plastic Body PREPARATION Remove the protective cap pH Electrode ORP Electrode _ Junction Al Bub w Glass Body pH Electrode Reference Reference Wire Reference __ _ Junction _ Gold tip Glass Body ORP Electrode t lt Filling Hole Reference Reference Wire Sensitive Wire Reference _ Glass Reference Platinum or DO NOT BE ALARMED IF ANY SALT DE POSITS ARE PRESENT This is normal with electrodes and they will disappear when rinsed with water During transport tiny bubbles of air may have formed inside the glass bulb The electrode cannot function properly under these condi tions These bubbles can be removed by shaking down the electrode as you would do with a glass thermometer If the bulb and or junction are dry soak the electrode in HI70300 storage solution for at least one hour For refillable electrodes If the fill solution electrolyte is more than 1
6. materials when used for their in tended purpose and maintained according to instructions The probes and the electrodes are war ranted for a period of six months Damages due to accident misuse tamper ing or lack of prescribed maintenance are not covered This warranty is limited to repair or replacement free of charge If service is required contact the dealer from whom you purchased the instrument If under warranty report the model number date of purchase serial number and the nature of the failure Obtain a Returned Goods Authoriza tion from the Customer Service department first and then return the instrument with the Authorization included along with shipment costs prepaid If the repair is not covered by the warranty you will be notified of the charge for repair or replacement When shipping any instrument make sure it is properly pack aged for complete protection All rights are reserved Reproduction in whole or in part is prohibited without the written consent of the copyright owner Hanna Instruments reserves the right to modify the design construction and appear ance of its products without advance notice CE DECLARATION OF CONFORMITY BA instruments CE DECLARATION OF CONFORMITY We Hanna Instruments Italia Srl via E Fermi 10 35030 Sarmeola di Rubano PD ITALY herewith certify that the pH and ORP transmitters HI 8614 HI8614L HI8615 HI8615L have been tested and found
7. to substitute the tem perature probe with a fixed resistor The input is isolated from the current loop to eliminate problems related to ground loop low insulation cables multiple electrode con nections and a common mode voltage of up to 100 V ensures true differential readings The terminal board of the transmitter provides for connection of power supply pH or ORP electrodes and temperature probe for HI8614 and HI8614L models only The unit is enclosed in a protective casing conforming to IP 65 standards SPECIFICATIONS OF HI8614 amp HI8614L Range 4 to 20 mA 0 00 to 14 00 pH Resolution 0 01 mA 0 01 pH Accuracy 20 C 68 F 0 02 mA 0 02 pH Typical EMC Deviation 0 25 mA 0 2 pH Calibration Offset 2 2 mA 2 pH Slope 0 5 mA 86 to 116 Temperature Compensation Fixed or automatic from 0 to 100 C 32 to 212 F with HI76608 probe Input Impedance 101 Ohm Output 4 20 mA isolated Installation Category II Protection IP 65 Environment 0 to 50 C 32 to 122 F RH max 95 non condensing Power Supply HI8614 18 to 30 Vdc HI8614L 20 to 36 Vdc Load Max 500 Ohm Dimensions 165 x 110 x 90 mm 6 5 x 4 3 x 3 5 Weight 1 kg 2 2 Ib yo l R IND IC PFHANSMITTER e SPECIFICATIONS OF HI8615 amp HI8615L TERMINAL BOARD CONNECTIONS Range 4 to 20 mA 1000 mV Unscrewthe 4screws andremove the top cover Resolution 0 01 m
8. A 1 mV There are three cable glands on the transmitter Accuracy 20 C 68 F cover The large cable gland with the splitin the 0 02 mA 5 mV rubber is for the electrode Typical EMC Deviation 0 25 mA 15 mV Calibration Offset 0 8 mA 100 mV ELECTRODE Slope 0 8 mA 90 to 110 CABLE GLAND Input Impedance 10 Ohm Output 4 20 mA isolated Installation Category II Protection IP 65 Environment 0 to 50 C 32 to 122 F RH max 95 non condensing WIRE CABLE GLANDS Power Supply HI8615 18 to 30 Vdc HI8615L 20 to 36 Vdc Connect the positive supply to the strip terminal ere Bee ONM VE LOOP and the negative supply to the Dimensions KS Res SCH terminal VE LOOP of the transmitter terminal 9X 4 3 X 3 5 block Weight 1 kg 2 2 lb l e SR e ial SLOPE ADJUSTMENT OFFSET ADJUSTMENT a SH SE s M D r o r cl The wire between the transmitter and the recorder indicator controller should be a PVC insulated two wire with a wire diameter of at least 0 7 mm This wire is fed through one of the smaller cable glands The maximum dis tance between the power supply and the amplifier is 300 m 1000 It is not necessary to use shielded cable The transmitter is protected against inversion of supply voltage Electrode connection connect the BNC of the cable to the BNC socket on the transmitter For HI8614 amp HI8614Lonly for 7 o automatic temperature com
9. EH connector to the ORP trans d mitter os s e Adjust the OFFSET AD 4 2 JUSTMENT trimmer on the module for a display of 12 mA on the ammeter or 0 mV on the instrument display HI 8615L only This sets the zero point for the transmit ter e Connect the ORP electrode to the transmit ter and immerse the tip of the electrode into a beaker of HI7020 ORP calibration solution and check that the ammeter read ing lies between 13 6 and 14 2 mA or the instrument reading is between 200 and 275 mV at 25 C HI8615L H HI 7020 e f the reading lies outside this range adjust the slope adjustment trimmer on the lt S transmitter for a reading just within this range The unit is now calibrated A complete calibration of the transmitter mod ule is advised periodically This calibration procedure requires the HI 8427 or the HI 931001 pH and ORP simulator to simulate the ORP electrode HI 8427 or HI 931001 produce a known signal into the system so that the faults of the system can be isolated e Connect the ORP transmitter to the simu lator HANNA instruments e Set the simulator to 0 mV and adjust the offset trimmer to read 12 mA on the am meter or 0 mV on the HI 8615L display HI 8615L only 15 Set the simulator to 350 mV and adjust the slope trimmer to read 14 8 mA on the ammeter or 350 mV on the HI 8615L display HI 8615L only EE Connect the ORP electrode to the module and imm
10. FOR HANNA pH SENSITIVE GLASS The resistance of glass electrodes partially depends on the temperature The lower the temperature the higher the resistance It takes longer time for the reading to stabilize if the resistance is higher In addition the response time will suffer to a greater degree at tem peratures below 10 C e Dry Membrane Junction soak in o HI70300 storage solution for at least one SJ hour 2x10 eld 1x10 e Drifting soak the electrode tip in warm i Hanna solution HI7082 for one hour and 2x108 rinse the tip with distilled water Refill with 1x108 fresh HI 7071 for single junction electrodes and HI7082 for double junction electrodes e e Low Slope refer to the Cleaning Proce dure above e No Slope check the electrode for cracks in glass stem or bulb and replace the electrode e Slow Response Excessive Drift soak the tip in Hanna HI7061 cleaning solution for 30 minutes rinse thoroughly in distilled water and then follow the Cleaning Proce dure above 22 20 20 0 4 10 20 30 40 50 60 70 80 90 C Since the resistance of the pH electrode is in the range of 200 Mohn the current across the membrane is in the pico Ampere range Large currents can disturb the calibration of the electrode for many hours For these reasons high humidity environ ments short c
11. Instruction Manual HI 8614 HI 8614L HI8615 HI8615L pH and ORP Transmitters instruments H 8614 d Go Ju Kies et www hannainst co Dear Customer Thank you for choosing a Hanna Instruments Product Please read this instruction manual carefully before using the instrument This manual will provide you with all the neces sary information for the correct use of the instrument If you need additional technical information do not hesitate to e mail us at tech hannainst com These instruments are in compliance with the C directives TABLE OF CONTENTS Preliminary Examination eee eee eee 3 General Description se eee eee eee eee 3 Specifications of HI8614 amp HI 8614L 5 Specifications of HI8615 amp HI8615L 6 Terminal Board Connections esse eee ee 7 pH Calibration with Automatic Temperature Compensation HI8614 amp HI8614L 9 pH Calibration with Manual Temperature Compensation HI 8614 amp HI 8614L 13 ORP Calibration HI 8615 amp HI 8615L 14 Electrode Conditioning and Maintenance 19 Temperature Resistance Correlation for HANNA pH Sensitive Glass eee ee 23 Installation Procedure and Examples 25 Le ee 28 WANA a aaia aana degen 34 CE Declaration of Conformity 35 2 PRELIMINARY EXAMINATION Remove the instrument from the packing ma terial and examine it carefully to make sure that no damage has occurred during ship
12. cm OT below the fill hole add HI7082 3 5M KCI electrolyte solution for double junc tion or HI7071 3 5M KCI AgCl electrolyte solution for single junction electrodes For a faster response unscrew the fill hole screw during measurements For AmpHeF electrodes If the electrode does not respond to pH changes the battery is run down and the electrode should be replaced MEASUREMENT Rinse the electrode tip with distilled water Immerse the tip 4 cm 1 in the sample and stir gently for approx 30 seconds For a faster response and to avoid cross contamination of the samples rinse the elec trode tip with a few drops of the solution to be tested before taking measurements STORAGE To minimize clogging and assuring a quick response time the glass bulb and the junc tion should be kept moist and not allowed to dry out Replace the solution in the protective cap with a few drops of HI70300 storage solution or in its absence filling solution HI7071 for single junction or HI7082 for double junction electrodes Follow the Prepa ration Procedure above before taking mea surements Note NEVER STORE THE ELECTRODE IN DISTILLED WATER OR DRY 20 PERIODIC MAINTENANCE Inspect the electrode and the cable The cable used for connection to the meter must be intact and there must be no points of broken insulation on the cable or cracks on the elec trode stem or bulb Connectors must be per fectly clean and dry If any scra
13. dy HI 1134B 3 BNC connector 3 m 9 9 cable double junction plastic body MIB x15 Stx 1e E N DIA Geer Ji Rr DIA be ul a mm E T a 38 5 110 mm mm mm mm HI 1114S HI 1134B 3 HI 1115S Screw connector single junction glass body HI 1135B 3 BNC connector 3 m 9 9 cable single junction glass body DIA 16 5mm m 5mm DIA 7 6mm M13 x 1 5 T 12mm DIA v d j 16 T mm ees 7 25 25mm 150mm mm mm HI 1115S HI 1135B 3 29 HI1210T Screwcap PG13 5 connector double junction plastic body PG13 5 THREAD 0 12mm NI lt ple gt 30mm 110mm HI1910B BNC connector 1m 3 3 cable double junction plastic body built in amplifier 3 4 x 16 UNF XY DIA ge e DIA il cE JI 38 5mm L 10mm HI1911B BNC connector 1m 3 3 cable double junction plastic body built in amplifier 3 4 x 16 UNF DA NO DIA 20 5mm A Ss Tae a 38 5mm 110mm HI1912B BNC connector 1m 3 3 cable double junction plastic body built in amplifier HI1912B 5 BNC connector 5m 16 5 cable double junction plastic body built in amplifier 3 4 x 16 UNF i e x mm Be 110mm HI2114B 5 BNC connector 5m 16 5 cable double junction plastic body e 38 5mm HI2910B 5 BNCconnector 5m 16 5 cable doubl
14. e junction plastic body built in amplifier 3 4 x 16 UNF Sc ZAC DIA 20 5mm CT 38 5mm Lem 110mm ORPELECTRODES HI2930B 5 BNC connector 5m 16 5 cable Pt plastic body built in amplifier 3 4 x 16 UNF DIA 12mm mt K DIA 20 5mm ul s 38 5mm 110mm HI3110S Screw type connector Pt glass body HI3130B 3 BNC connector 3 m 9 9 cable Pt glass body MIS x 1 5 54 x 16 SC DIA ee STR oa NO mm SS E S el 38 5mm 110mm H 3110S H 3130B 3 HI3110T ScrewcapPG13 5connector Pt glass body PG13 5 THREAD 0 12mm b 1mm kt l 30mm 110mm HI3115S Screw type connector side arm Pt glass body HI3135B 3_ BNC connector 3 m 9 9 cable side arm Pt glass body DIA 16 5mm 5mm 3x15 Ee 7 6mm C E j DIA 7 Ju Ri 16 W Bo il 7 25 3 4 x meurt Bik iamm gt 1 DIA e ul a 38 5mm a 110mm ____ mm mm HI 3115S m 25MM L Te 31 HI 3135B 3 HI3210T Screwcap PG13 5connector Pt plastic body PG13 5 THREAD N d 12mm Ki SC Ia gt it gt 30mm 110mm HI3410S Screw connector Pt plastic body HI3430B 3 BNC connector 3 m 9 9 cable Pt plastic body maxis 34x16 T S DIA ES D a Wi 16 Da 20 5mi ul mm HL Jha 1 E Ze 38 5mm 110mm HI 3410S HI 3430B 3 HI3932B 5 BNC connector 5m 16 5
15. een the ve cable and VE LOOP terminal H Remove the protective cap from the electrode rinse it 1 with some pH 7 01 solution V U or immerse it in the pH 7 Att rinse solution then immerse the pH electrode and tem SCH perature probe into pH 7 01 calibration buffer solution shake briefly and wait for the reading to stabilize trode should be sub merged approximately b 4 cm 1 into the ran solution The tempera m ture probe should be located as close to the pH electrode as possible Note the tip of the elec 0 Adjust the offset trimmer until the amme ter reads 12mA or the display shows 7 01 HI 8614L only if the temperature of the buffer is at 25 C For other buffer temperatures refer to page 13 for the appropriate mA pH reading e Rinse the electrode with tap water or distilled water and a small amount of pH 4 01 or 10 01 buffer solution or h L a immerse it in the pH 4 rinse b T solution 2nd calibration HS point Dip the electrode and KS the temperature probe into pH 4 01 or 10 01 calibra tion buffer solution shake briefly and wait for a few minutes for reading to stabi lize e Adjust the slope trimmer until the amme ter reads 8 58 mA or the display shows 4 01 at 25 C For other buffer tempera tures refer to page 13 for the appropriate mA pH reading HI 8614L If you are using pH 10 01 buffer solution adjust
16. erse the tip of the electrode into the beaker of HI 7020 ORP solution and check that the ammeter reading lies be tween 13 6 and 14 2 mA or the instrument reading is between 200 and 275mV at 25 C HI 8615L only INPUT H HI 7020 Only if the reading lies out S side this range adjust the slope adjustment trimmer on the transmitter to reflect a reading within this range FOR HI8615L ONLY The HI8615L is factory calibrated and the displayed values are referenced to the 4 20 mA loop current e g LCD displays 1000 mV when loop current is 4 00 mA and dis plays 1000 mV when current is 20 00 mA Under normal application adjustment on this module may not be necessary If routine check is required the following procedures shall be performed Follow the above procedure for HI8615 see page 12 Simulate a 12 00 mA loop current for the transmitter i e 0 mV at Electrode input and check display reading VE LOOP VE LOOP Wi Simulate a 20 00 mA loop current for the transmitter e g 1000 mV at Electrode input and check display reading A VE LOOP VE LOOP V 17 Please note 1000 mV 4mA 0 mV 12 mA 1000 mV 20 mA 350 mV 14 8 mA 200 mV 13 6 mA 275 mV 14 2 mA 1 mV Note when the meter is used in conjunction with the Hanna indicator HI 8512T or the controller HI 8720T the calibration can also be performed on the indicator
17. ircuits and static discharges are detrimental for a stable pH reading The pH electrode s life also depends on the temperature If constantly used at high tem peratures the electrode life is drastically re duced 23 Typical Electrode Life Ambient Temperature 1 3 years 90 C Less than 4 months 120 C Less than 1 month High concentrations of sodium ions interfere with readings in alkaline solutions the pH at which the interference starts to be significant depends upon the composition of the glass This interference is the alkaline error and causes the pH to be underestimated Hanna s glass formulations have the indicated charac teristics Alkaline Error Sodium Ion Correction for the Glass at 20 25 C STL L Ee 13 00 0 10 0 1 Mol L Nat 14 00 EE 24 INSTALLATION PROCEDURE AND EXAMPLES The HI 8614 HI 8614L HI8615 and HI 8615L transmitters may be wall mounted in any con venient location near the measurement point To minimize thermal drift due to extreme tem perature fluctuations during the measurement process particularly if the measurement is conducted outdoors it is best to protect the transmitter in an enclosed casing General Installation Procedure For most industrial application involving long term monitoring and control it is also recom mended to use tank electrode holders HI 6050 or HI6051 to protect the pH electrode and the temperature probe from c
18. mL HI 7092L Oxidizing pretreatment solution 500 mL ELECTRODE MAINTENANCE SOLUTIONS HI70300M Storage solution 230 mL HI70300L Storage solution 500 mL HI7061M General cleaning solution 230 mL HI7061L General cleaning solution 500 mL HI7073M Protein cleaning solution 230 mL HI7073L Protein cleaning solution 500 mL HI7074M Inorganic cleaning solution 230 mL HI7074L Inorganic cleaning solution 500 mL HI7077M Oil amp Fat cleaning solution 230 mL HI7077L Oil amp Fat cleaning solution 500 mL HI7071 3 5M KCI AgCI electrolyte solu tion 4 x 50 mL bottle for single junc tion electrodes HI7072 1M KNO electrolyte solution 4 x 50 mL bottle HI7082 3 5M KCI electrolyte solution 4 x 50 mL bottle for double junction electrodes 28 pHELECTRODES HI1090T Screwcap PG13 5 connector double junction glass body PG 2 THREAD Se o 12mm o9 5mm EEN Tomm l HI 1110S Screw connector single junction glass body HI 1130B 3 BNC connector 3 m 9 9 cable single junction glass body DIA 9 5mm vi DIA 12mm K L S TIR aR mm 7 25 U mm mm 38 5mm 110mm HI 1110S HI 1130B 3 HI1110T Screwcap PG13 5 connector double junction glass body PG13 5 THREAD k M13 x 1 5 3 4 x 16 UNF d 6 ii 69 5mm Be GEES 110mm 30mm HI1114S Screwconnector double junction plastic bo
19. ontamination by the test solution Controlling the pH ORP with a recorder TRANSMITTER A Ju pH ELECTRODE RECORDER Eat Monitoring the pH with o recorder 25 Monitoring the pH ORP with Panel Mounting pH HI8510 ORP HI 8512 Indicator TRANSMITTER RECORDER pH ELECTRODE Controlling the pH ORP with an Indusirial Regulator RECORDER TRANSMITTER REGULATOR Monitoring and Controlling the pH ORP with Panel Mounting Indicator Regulator and Dosage Control of either Acid or Base TRANSMITTER pH ELECTRODE 26 Monitoring and Controlling the pH with HI 8711 Panel Mounting Indicator Regulator with Independent Dosage Control for Acid and Base DH ELECTRODE 27 ACCESSORIES pH CALIBRATION SOLUTIONS HI7004M pH 4 01 buffer solution 230 mL HI7004L pH 4 01 buffer solution 500 mL HI7006M pH 6 86 buffer solution 230 mL HI7006L pH 6 86 buffer solution 500 mL HI7007M pH 7 01 buffer solution 230 mL HI7007L pH 7 01 buffer solution 500 mL HI7009M pH 9 18 buffer solution 230 mL HI7009L pH 9 18 buffer solution 500 mL HI7010M pH 10 01 buffer solution 230 mL HI7010L pH 10 01 buffer solution 500 mL ORP SOLUTIONS HI 7020M 200 275 mV test solution 230 mL HI7020L 200 275 mV test solution 500 mL HI 7091M Reducing pretreatment solution 230 mL HI 7091L Reducing pretreatment solution 500 mL HI 7092M Oxidizing pretreatment solution 230
20. stor to the TEMP PROBE terminals see page 6 depending on the temperature of the calibra tion solution INPUT Follow the procedure as outlined in the calibration with automatic temperature com pensation and use the thermometer read ing to adjust the trimmer until the amme ter reads the value according to the follow ing table Temperature pH 4 01 Buffer pH7 01 Buffer pH10 01 Buffer C F mA 0 32 4 32 15 789 5 41 d i 12 103 10 24 15 697 10 50 4 12 069 10 18 15 629 15 59 4 S 12 034 10 12 15 560 20 68 4 12 023 10 06 15 491 25 77 4 S 2 12 000 10 01 15 434 86 4 11 989 9 96 15 377 95 4 s 11 977 9 92 15 331 104 4 11 966 9 88 15 285 113 4 11 966 9 85 15 251 122 4 11 966 9 82 15 217 131 d 11 966 9 79 15 182 140 4 S 11 966 9 77 15 159 13 ORP CALIBRATION HI8615 amp HI8615L Initial preparation Disconnect the ve supply cable from the VE LOOP terminal and connect a 20 mA f s ammeter between the ve cable and the AVE LOOP terminal With HI 8615L the instrument display can be used during cali bration without the need to connect the am meter In this case the values are directly expressed in mV units ei Pour a small quantity of HI 2020 gt ORP solution into a beaker H Procedure e Connect the shorting BNC R
21. tches or cracks are present on the electrode body replace the electrode Rinse off any salt deposits with water For refillable electrodes Refill it with fresh electrolyte HI7071 for single junction or HI7082 for double junction elec trodes Allow the electrode to stand upright for 1 hour Follow the Storage Procedure above CLEANING PROCEDURE General Soak in Hanna HI7061 general cleaning solution for approxi mately 1 hour Removal of films dirt or deposits on the mem brane junction Protein Soak in Hanna HI7073 protein cleaning solution for 15 minutes Inorganic Soak in Hanna HI 7074 inorganic cleaning solution for 15 minutes Oil grease Rinse with Hanna HI7077 Oil amp Fat cleaning solution IMPORTANT After performing any of the cleaning procedures rinse the electrode thor oughly with distilled water drain and refill the reference chamber with fresh electrolyte not necessary for GEL filled electrodes and soak the electrode in HI70300 storage solution for at least 1 hour before taking measurements 21 TROUBLESHOOTING Evaluate your electrode performance based on the following e Noise Readings fluctuate up and down could be due to Clogged Dirty Junction refer to the Cleaning Procedure above Loss of shielding due to low electrolyte level in refillable electrodes only HI7071 for single junction or HI7082 for double junction electrodes TEMPERATURE RESISTANCE CORRELATION
22. the slope trimmer until the am meter read 15 43mA at 25 C 77 F or the value in dicated at page 13 FOR HI8614L ONLY The Display Module is factory calibrated so that the LCD display results are referred to the 4 20 mA loop current e g LCD displays 0 00 pH when loop current is 4 00 mA and displays 14 00 pH when current is 20 00 mA 11 Under normal application adjustment on this module may not be necessary If routine check is required the following pro cedures shall be performed e Calibrate the transmitter module using a ammeter as explained in the previous pages e Simulate a 4 00 mA loop current for the transmitter i e pH 0 00 as Electrode in put and check for display reading e Simulate a 20 00 mA loop current for the transmitter i e pH 14 00 as Electrode input and check for display reading Note when the instrument is used in con junction with the Hanna indicator HI 8510T or controllers HI 8710T HI 8711T the calibration can also be performed on the indicator controller In this case slight calibration adjust ment can be made on the indicator controller even if the whole system cali bration is advised always starting from the transmitter pH CALIBRATION WITH FIXED TEMPERATURE COMPENSATION HI8614 amp HI 8614L only Take the temperature of the buffer solutions using a Checktemp or a thermom eter with a resolution of at least 1 thw Connect the appropriate re si
23. to be in compliance with EMC Directive 89 336 EEC and Low Voltage Directive 73 23 EEC according to the following applicable normatives EN 50082 1 Electromagnetic Compatibility Generic Immunity Standard IEC 801 2 Electrostatic Discharge IEC 801 3 RF Radiated TEC 801 4 Fast Transient EN 50081 1 Electromagnetic Compatibility Generic Emission Standard EN 55022 Radiated Class B EN61010 1 Safety requirements for electrical equipment for measurement control and laboratory use Date of Issue 11 12 1998 0 Cox P Cesa Technical Director On behalf of Hanna Instruments S r l Recommendations for Users Before using these products make sure that they are entirely suitable for the environment in which they are used Operation of these instruments in residential area could cause unacceptable interferences to radio and TV equipments requiring the operator to take all necessary steps to correct interferences Any variation introduced by the user to the supplied equipment may degrade the instruments EMC performance To avoid damages or burns do not perform any measurement in microwave ovens 35 SALES AND TECHNICAL SERVICE CONTACTS Australia Tel 03 9769 0666 e Fax 03 9769 0699 China Tel 10 88570068 Fax 10 88570060 Egypt Tel amp Fax 02 2758 683 Germany Tel 07851 9129 0 e Fax 07851 9129 99 Greece Tel 210 823 5192 e Fax 210 884 0210 Indonesia Tel 21 4584 2941 e Fax 21 4584 2942

HANNA HI 8614 HI 8614L HI8615 HI8615L pH ORP Transmitters Instruction Manual

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