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Hanna Instruments HI 8711, Instruction Manual

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55

and then follow the Cleaning Procedure
above.

•

For ORP Electrodes: polish the metal tip
with a light abrasive paper (paying atten-
tion not to scratch the surface) and wash
thoroughly with water.

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Summary of Contents for HI 8711

Page 1: ...0 HI 931500 HI931501 HI 932500 Panel Mounted ORP pH Indicators and Controllers SLOPE DOSAGE OXID REDUC AL COARSE SET FINE AL MEA SURE SET 0 mV TEST 500 mV TEST HI 8720E ORP mV http www hannainst com T...

Page 2: ...ription HI 8710 10 Functional Description HI 8711 14 Functional Description HI 8720 18 Functional Description HI 931500 22 Functional Description HI 931501 24 Functional Description HI 932500 27 Speci...

Page 3: ...city of use in a wide range of industrial process applications The models are designed with DIN standard panel mount with membrane keypads on the front panel a large LCD display and autodiagnostic fun...

Page 4: ...g the ORP indicators in conjunction with a 4 20 mA output ORP transmitter HI 8615 or HI 8615L with LCD display will assure you of a strong interference free signal at distances up to 300 m 1000 ft All...

Page 5: ...e dimensions show the cutout size for the installation Side view of the panel mounted unit Adjustable location brackets supplied with the meter allow the indicator to slide into the cutout and will ho...

Page 6: ...8510E pH Keypad SENSORTEST To display the mV response of the electrode in order to verify its working condition pH 7 TEST Toverifytheinternalcircuitofthemeterinterms ofOffsetcompensation pH 4 TEST To...

Page 7: ...power supply before replacing the fuse 1 Fuse Holder 2 Power supply 3 Recorderoutput 4 Connections for PT100 temperature sensor 5 BNC socket for pH electrode FUSE FUSE ELECTRODE INPUT PT100 mA OUT 220...

Page 8: ...6 Unplug the instrument from the power supply before replacing the fuse 1 Fuse Holder 2 Power supply 3 Recorderoutput 4 Connections to the transmitter REARPANELHI8510T...

Page 9: ...I 8512 ORP INDICATOR Keypad 0 mV TEST To verify the instrument cali bration at point 0 500 mV TEST To verify the slope at point 500 mV Trimmers SLOPE For Slope calibration FRONTPANEL SLOPE 0 mV TEST 5...

Page 10: ...the instrument from the power supply before replacing the fuse 1 Fuse Holder 2 Power supply 3 Recorderoutput 4 BNC socket for ORP electrode REARPANELHI8512E FUSE FUSE ELECTRODE INPUT 220 110 L 1 2 3...

Page 11: ...9 Unplug the instrument from the power supply before replacing the fuse 1 Fuse Holder 2 Power supply 3 Recorderoutput 4 Connections to the transmitter REARPANELHI8512T...

Page 12: ...ST To display the mV response of the electrode in order to verify its working condition AL To display and set the toler ance of the alarm points pH 7 TEST To verify the internal circuit of the meter i...

Page 13: ...libration AL To set the tolerance of the alarm SET COARSE To coarsely adjust the set point SET FINE To finely adjust the set point Leds ACID To show the acid dosage is active BASE To show the basic do...

Page 14: ...dosage selection 4 Reductant or oxidant dosage consent 5 Connections for dosing pump 6 Alarm contacts 7 Recorderoutput 8 Connections for PT100 temperature sensor 9 BNC socket for pH electrode REARPANE...

Page 15: ...pply before replacing the fuse 1 Fuse Holder 2 Power supply 3 Acid Basic dosage selection 4 Reductant or oxidant dosage consent 5 Connections for dosing pump 6 Alarm contacts 7 Recorderoutput 8 Connec...

Page 16: ...E To set HI 8711 on mea surement mode and to en able the diagnostic tests SENSOR TEST To display the mV re sponse of the electrode to verify its working condi tion Al To display and to set the toleran...

Page 17: ...tion AL To set the tolerance of the alarm ACID SET COARSE To coarsely adjust the acid set point ACID SET FINE To finely adjust the acid set point BASE SET COARSE To coarsely adjust the basic set point...

Page 18: ...supply 3 Connections for dosing pump for acid 4 Connections for dosing pump for base 5 Alarm contacts 6 Recorder output 7 Connections for PT100 temperature sensor 8 BNC socket for pH electrode REAR P...

Page 19: ...power supply before replacing the fuse 1 Fuse Holder 2 Power supply 3 Connections for dosing pump for acid 4 Connections for dosing pump for base 5 Alarm contacts 6 Recorder output 7 Connections to th...

Page 20: ...easurement mode and to enable the diag nostic tests Al To display and to set the toler ance of the alarm points 0 mV TEST To verify the instrument calibra tion at point 0 500 mV TEST To verify the slo...

Page 21: ...d set the tolerance of the alarm points SET COARSE To coarsely adjust the set point SET FINE To finely adjust the set point Leds OXID To show the oxidant dosage is active REDUC To show the reductant d...

Page 22: ...er supply 3 Oxidant Reductant dosage selection 4 Oxidant or reductant dosage consent 5 Connections for dosing pump 6 Alarm contacts 7 Recorderoutput 8 BNC socket for ORP electrode REARPANELHI8720E FUS...

Page 23: ...y before replacing the fuse 1 Fuse Holder 2 Power supply 3 Oxidant Reductant dosage selection 4 Oxidant or Reductant dosage consent 5 Connections for dosing pump 6 Alarm contacts 7 Recorderoutput 8 Co...

Page 24: ...E SET COARSE FINE O SET MEA SURE Keypad SET To set the working point of pH dosage MEASURE TosetHI931500onmeasure mentmode Trimmers O ForOffsetcalibration SLOPE For Slope calibration SET COARSE Tocoars...

Page 25: ...3 Reductant or oxidant dosage consent 4 Acid Basic dosage selection 5 Connections for Dosing Pumps 6 Recorderoutput 7 ConnectionsforPT100temperaturesensor 8 BNC socket for pH electrode REARPANELHI9315...

Page 26: ...SET BASE SET FINE COARSE COARSE FINE O ACID SET BASE SET MEA SURE pH Keypad ACID SET To set the working point of acid dosage BASE SET To set the working point of basic dosage MEASURE To set HI 931501...

Page 27: ...T COARSE To coarsely adjust the basic set point BASE SET FINE To finely adjust the ba sic set point Leds ACID SET Blinking To show the acid dos age is active BASE SET Blinking To show the basic dosage...

Page 28: ...Fuse Holder 2 Power supply 3 Connections for dosing pump for acid 4 Connections for dosing pump for base 5 Recorderoutput 6 Connections for PT100 temperature sensor 7 BNC socket for pH electrode REAR...

Page 29: ...re mentmode Trimmers SLOPE For Slope calibration SET COARSE To coarsely adjust the ORP set point SET FINE To finely adjust the ORP set point Leds OXID Toshowtheoxidantdosageis active REDUC Toshowthere...

Page 30: ...Holder 2 Power supply 3 Oxidant or reductant dosage consent 4 Oxidant Reductant dosage selection 5 Connections for dosing pump 6 Recorderoutput 7 BNC socket for ORP electrode REARPANELHI932500 FUSE FU...

Page 31: ...to 20 mA or 4 to 20 mA isolated Power Supply 110 115 V or 220 240 V 50 60 Hz Environment 10 to 50 C 14 to 122 F Weight 1 kg 2 2 lb SPECIFICATIONS HI 8510 HI8512E HI 8512T Range 1000 to 1000 mV Resolut...

Page 32: ...V or 220 240 V 50 60 Hz Environment 10 to 50 C 14 to 122 F Weight 1 kg 2 2 lb SPECIFICATIONS HI 8710 HI8710E HI 8710T Range 0 00 to 14 00 pH Resolution 0 01 pH Accuracy 0 02 pH 0 5 Typical EMC 0 1 pH...

Page 33: ...Supply 110 115 V or 220 240 V 50 60 Hz Environment 10 to 50 C 14 to 122 F Weight 1 kg 2 2 lb SPECIFICATIONS HI 931500 HI8720E HI 8720T Range 1000 to 1000 mV Resolution 1 mV Accuracy 5 mV 0 5 Typical...

Page 34: ...stive load 1 000 000 strokes Power Supply 110 115 V or 220 240 V 50 60 Hz Environment 10 to 50 C 14 to 122 F Weight 1 kg 2 2 lb SPECIFICATIONS HI 931501 SPECIFICATIONS HI 932500 HI 932500 Range 1000 t...

Page 35: ...RANSMITTER paying par ticular attention to the indi cated polarity Recorder Terminals these contacts are the output ter minals for connection to a recorder The output is from 0 to 20 mA 4 to 20 mA as...

Page 36: ...xidants e g in cyanide oxidation make an open circuit be tween oxidation reduction selection terminals see rear panel descriptions 3 at page20 21 and 4 at page 28 If you plan to dose reduc tants e g i...

Page 37: ...th meters are con nected together to link the ORP and pH controllers so that ORP dosage will occur only if the actual pH value is correct This is to avoid overdosage of oxidants or re ductants which m...

Page 38: ...see page 40 42 SET POINTS HI 8710 HI 8720 HI 931500 and HI 932500 only To set the working point of pH or ORP dos age press the SET key The display will show the set value Use a small screwdriver to a...

Page 39: ...set value for base dosage Use a small screwdriver to adjust the trim mers BASE SET COARSE and FINE until the desired base set value is displayed ALARMS HI 8710 HI 8711 and HI 8720 only To set the alar...

Page 40: ...1 5 pH is chosen the instru ment gives an alarm every time the measured pH value is higher than 9 5 pH or lower than 5 5 pH In HI 8720 if the set value is 300 mV and the Alarm of 100 mV is chosen the...

Page 41: ...e lighted HI 8710 HI 931500 and HI 931501 only When oxidants are dosed the OXID LED will be lighted and when reductants are being dosed the REDUC LED will be lighted HI 8720 HI 932500 only SLOPE DOSAG...

Page 42: ...ould be lo cated as close to the pH electrode as possible Shake briefly and wait one minute before adjusting the O trimmer to display pH 7 01 on the LCD if the temperature of the buffer solution is at...

Page 43: ...the LCD if the temperature of the buffer solution is at 25 C if not refer to the chart on page 43 for appropriate buffer value for the corresponding temperature The calibration is now complete and th...

Page 44: ...h the calibration not for HI 8512 Immerse the electrode in HI 7020 ORP solution Adjust the slope trimmer until an ORP value of between 200 mV and 250 mV is displayed The calibration is now complete an...

Page 45: ...6 on the display If the buffer s temperature is 50 C calibrate to read 4 06 6 98 9 82 on the display TEMP pH VALUES C F 4 01 6 86 7 01 9 18 10 01 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 32 41 50 59...

Page 46: ...nctioning of the instrument or electrode Press the MEASURE button before pressing any of the fol lowing keys A Sensor Test Immerse the electrode in pH 7 01 buffer solution HI 7007 press the SEN SOR TE...

Page 47: ...etween 7 pH 1pH This will verify the internal circuit of the meter in terms of the offset compen sation C Amplifier Circuit Test Press the pH4 TEST key and the dis play should show a value between 3 3...

Page 48: ...of malfunction Press the MEASURE key be fore proceeding with the follow ing tests HI 8720 only A 0 mV Test Press the 0 mV TEST key and the display should show a value of 0 mV 10 mV This will verify i...

Page 49: ...states A Light stays on The mode is displayed on the LCD but is not active E g alarm set point is displayed but the alarm contact is open B Light Blinking 25 On 75 Off The mode is not dis played on th...

Page 50: ...easing elec trons without causing a chemical reaction with the elements with which it comes into contact The electrodes most usually available for this purpose have gold or platinum surfaces gold poss...

Page 51: ...r than the value in the Table below an oxidizing pre treatment is necessary other wise a reducing pre treatment is necessary pH mV pH mV pH mV pH mV pH mV 0 990 1 920 2 860 3 800 4 740 5 680 6 640 7 5...

Page 52: ...easure the response the obtained value should be within 200 and 275 mV After this functional test it is suggested to wash the electrode thoroughly with water and proceed to the oxidizing or reducing p...

Page 53: ...may have formed inside the glass bulb The electrode Reference Filling Hole Reference Filling Hole Fill Hole Screw Sensitive Wire Reference Wire Reference Junction Glass Bulb Glass Bulb Reference Junc...

Page 54: ...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...

Page 55: ...electrode Rinse off any salt depos its with water For refillable electrodes Refill the electrode with fresh electrolyte HI7071 for single junction or HI7082 for double junction electrodes Allow the e...

Page 56: ...Loss of shielding due to low electrolyte level in refillable electrodes only refill with HI7071 for single junction or HI7082 for double junction electrodes Dry Membrane Junction Soak in Stor age Sol...

Page 57: ...55 and then follow the Cleaning Procedure above For ORP Electrodes polish the metal tip with a light abrasive paper paying atten tion not to scratch the surface and wash thoroughly with water...

Page 58: ...tain proper operating conditions The conventional electrodes should be used in indoor applications only and should not use a cable longer than 10 m 33 MEDIUM DISTANCE INDOOR OUTDOOR INSTALLATION When...

Page 59: ...reater than 50 m 165 it is necessary to install a transmitter between the electrode and the meter Hanna offers a full line of pH ORP transmit ters with or without LCD displays AmpHel isaregisteredTrad...

Page 60: ...0 mL HI 7091L Pre Treatment Reducing Solution 460 mL HI 7092M Pre treatment Oxidizing Solution 230 mL HI 7092L Pre Treatment Oxidizing Solution 460 mL ELECTRODE STORAGE SOLUTIONS HI70300M Storage Solu...

Page 61: ...34B 3 BNC connector 3 m 9 9 cable doublejunctionplastic body HI 1114S HI 1134B 3 HI 1115S Screwconnector singlejunction glass body HI1135B 3 BNC connector 3 m 9 9 cable single junction glass body HI 1...

Page 62: ...connector 1 m 3 3 cable double junction plastic body built inamplifier HI1912B 5 BNCconnector 5m 16 5 cable double junction plastic body built inamplifier HI2114B 5 BNCconnector 5m 16 5 cable double j...

Page 63: ...G13 5connector Pt glass body HI 3115S Screw typeconnector side arm Pt glass body HI3135B 3 BNC connector 3 m 9 9 cable side arm Pt glass body HI 3115S HI 3135B 3 DIA 20 5mm 3 4 x 16 UNF DIA 12mm 110mm...

Page 64: ...I4130B 3 BNC connector 3 m 9 9 cable Au glass body HI 4110S HI 4130B 3 HI4932B 5 BNCconnector 5m 16 5 cable Au Ultem body built in ampli fier PG13 5 THREAD 12mm 110mm 30mm DIA 20 5mm 3 4 x 16 UNF DIA...

Page 65: ...Pumps with Flow Rate from 1 5 to 20 LPH HI 7871 LevelControllers HI 7873 HI6050 SubmersibleElectrodeHolders HI 6051 HI 6054 ElectrodeHoldersforIn Line HI 6057 Applications HI778P Screened Coaxial Cab...

Page 66: ...umber and the nature of the failure Obtain a Returned Goods Authorization from the Customer Service department first and then return the instrument with the Authorization included along with shipment...

Page 67: ...performance To avoid electrical shock do not use these instruments when voltages at the measurement surface exceed 24VAC or 60VDC To avoid damages or burns do not perform any measurement in microwave...

Page 68: ...h t t p w w w h a n n a i n s t c o m PRINTED IN PORTUGAL MANPROCR1 07 96...

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