Hanna Instruments HI 8510 Series Instruction Manual
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Hanna Instruments HI 8510 Series Instruction Manual

Dual output ph controller
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HI8711 allows the selection of two set points with two independent outputs for acid and alkaline
dosages.
• Auto-diagnostics to verify offset and slope calibration and electrode contamination/deterioration
• Fail Safe Alarm System protects against problems caused by power supply failure or signal
interruption
• Selectable manual ON, OFF and automatic dosing control for alkaline and acid dosing with
indicator.
Fail Safe Alarm System
• Hanna's exclusive Fail Safe Alarm System protects against problems caused by power supply
failure or signal interruption, which are typical risks in industrial environments. An alarm
condition is indicated by a red LED, located directly on the front panel of the controller.
Self-Diagnostic Test
• Built-in autodiagnostic functions enable the user to check and troubleshoot any malfunctions.
The functions are made via front panel keys to isolate the cause of malfunction whether it is due
to pH electrode contamination, internal offset circuit or the amplifier circuit.
Overtime Dosing Protection
• The HI8711 incorporates adjustable overtime dosing protection from 5 to 60 minutes. If dosing
exceeds selected time, the alarm will be triggered and the dosing contact will deactivate. This
feature can be activated or deactivated.
Matching Pin Connection
• Supports potential matching pin connection to avoid typical problems caused by grounding loop
current, such as progressive damage of the electrode, fluctuating measurements, and poor
process regulation.
Output and Input Connections
• Each model accepts either a direct input from a pH or ORP electrode or from a transmitter
through 4-20 mA input. The instrument also provides ±5V power output and input terminals for
amplified electrodes. Moreover, you can choose the output configuration for connecting a
recorder or a PLC, between 0-20 or 4-20 mA.
Robust Design
• A removable, transparent splash-proof cover protects the front panel.
pH

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Summary of Contents for Hanna Instruments HI 8510 Series

  • Page 1 HI8711 allows the selection of two set points with two independent outputs for acid and alkaline dosages. • Auto-diagnostics to verify offset and slope calibration and electrode contamination/deterioration • Fail Safe Alarm System protects against problems caused by power supply failure or signal interruption •...
  • Page 2 pH Range 0.00 to 14.00 pH pH Resolution 0.01 pH pH Accuracy ±0.02 pH (0 to 100 °C); ±0.05 pH (-20 to 0 °C); ±0.5% (input from transmitter) offset: ±2 pH with OFFSET trimmer; slope: 80 to 110% with SLOPE trimmer Calibration Temperature fixed or automatic with Pt100, from -20 to 100°C (-4 to 212°F)
  • Page 3 Instruction Manual HI 8510 - HI 8512 HI 8710 - HI 8711 HI 8720 - HI 931500 HI 931501 - HI 932500 Panel - Mounted ORP - pH Indicators and Controllers HI 8720E DOS AGE SLOP E OXID . RED UC. ∆AL SURE COA RSE...

  • Page 4: Table Of Contents

    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, as well as a precise idea of its versatility in a wide range of applications.

  • Page 5: Preliminary Examination

    PRELIMINARY EXAMINATION Remove the instrument from the packing material and examine it carefully to make sure that no damage has occurred during shipping. If there is any noticeable damage, notify your Dealer. Note: Save all packing materials until you are sure that the instrument functions correctly.
  • Page 6 Using the pH indicators in conjunction with a 4-20mA output pH transmitter HI 8614 or HI 8614L (with LCD display) and using 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).

  • Page 7: Mechanical Dimensions

    MECHANICAL DIMENSIONS The meters have a DIN 43 700 casing in black anodized aluminum. Front and back of the instruments are supplied with shockproof ABS plastic and a transparent protective cover for the front panel. Front view of the panel-mounted unit. 141mm 144mm 5.55"...

  • Page 8: Functional Description Hi 8510

    FUNCTIONAL DESCRIPTION HI 8510 pH INDICATOR FRONT PANEL HI 8510E SLOPE ∆ SENSOR TEST pH 7 pH 4 TEST TEST Keypad SENSOR TEST To display the mV response of the electrode in order to verify its working condition pH 7 TEST To verify the internal circuit of the meter in terms of Offset compensation pH 4 TEST...
  • Page 9 REAR PANEL HI 8510E ELECTRODE INPUT PT100 mA OUT FUSE FUSE 1. Fuse Holder 2. Power supply 3. Recorder output 4. Connections for PT100 temperature sensor 5. BNC socket for pH electrode. Unplug the instrument from the power supply before replacing the fuse.
  • Page 10 REAR PANEL HI 8510T 1. Fuse Holder 2. Power supply 3. Recorder output 4. Connections to the transmitter. Unplug the instrument from the power supply before replacing the fuse.

  • Page 11: Functional Description Hi 8512

    FUNCTIONAL DESCRIPTION HI 8512 ORP INDICATOR FRONT PANEL HI 8512E SLOPE 500 mV 0 mV TEST TEST 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...
  • Page 12 REAR PANEL HI 8512E ELECTRODE INPUT mA OUT FUSE FUSE 1. Fuse Holder 2. Power supply 3. Recorder output 4. BNC socket for ORP electrode. Unplug the instrument from the power supply before replacing the fuse.
  • Page 13 REAR PANEL HI 8512T 1. Fuse Holder 2. Power supply 3. Recorder output 4. Connections to the transmitter. Unplug the instrument from the power supply before replacing the fuse.

  • Page 14: Functional Description Hi 8710

    FUNCTIONAL DESCRIPTION HI 8710 pH CONTROLLER WITH ALARM FRONT PANEL HI 8710E SLOPE ACID BASE ∆ ∆AL SURE COARSE SENSOR ∆AL TEST FINE pH 7 pH 4 TEST TEST Keypad To set the working point of pH dosage MEASURE To set HI 8710 on measure- ment mode and to enable the diagnostic tests SENSOR TEST To display the mV response...
  • Page 15 Trimmers ∆ ∆ ∆ ∆ ∆ O For Offset calibration SLOPE For Slope calibration ∆ ∆ ∆ ∆ ∆ 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...
  • Page 16 REAR PANEL HI 8710E ELECTRODE INPUT PT100 mA OUT OPEN: ACID SHORT: BASE CONSENT FUSE ALARM 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.
  • Page 17 REAR PANEL HI 8710T 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. Recorder output 8. Connections to the transmitter. Unplug the instrument from the power supply before replacing the fuse.

  • Page 18: Functional Description Hi 8711

    FUNCTIONAL DESCRIPTION HI 8711 DUAL OUTPUT pH CONTROLLER FRONT PANEL HI 8711E SLOPE ACID BASE ∆ ∆AL SURE COARSE ACID SET SENSOR ∆AL TEST FINE COARSE pH 7 pH 4 BASE SET TEST TEST FINE HI 8711E Keypad ACID SET To set the working point of acid dosage BASE SET...
  • Page 19 pH 7 TEST To verify the internal cir- cuit of the meter in terms of Offset compensation pH 4 TEST To verify the amplifier cir- cuit of the meter Trimmers ∆ ∆ ∆ ∆ ∆ O For Offset calibration SLOPE For Slope calibration ∆...
  • Page 20 REAR PANEL HI 8711E ELECTRODE INPUT PT100 mA OUT BASE ACID FUSE ALARM 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.
  • Page 21 REAR PANEL HI 8711T 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 the transmitter. Unplug the instrument from the power supply before replacing the fuse.

  • Page 22: Functional Description Hi 8720

    FUNCTIONAL DESCRIPTION HI 8720 ORP CONTROLLER FRONT PANEL HI 8720E DOSAGE SLOPE OXID. REDUC. ∆AL SURE COARSE ∆AL FINE 500 mV 0 mV TEST TEST Keypad To set the working point of ORP dosage MEASURE To set HI 8720 on measurement mode and to enable the diag- nostic tests ∆...
  • Page 23 Trimmers SLOPE For Slope calibration ∆ ∆ ∆ ∆ ∆ AL To display and 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 dosage is...
  • Page 24 REAR PANEL HI 8720E ELECTRODE INPUT CONSENT mA OUT OPEN: OXD SHORT: RDX FUSE ALARM 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.
  • Page 25 REAR PANEL HI 8720T 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. Recorder output 8. Connections to the transmitter. Unplug the instrument from the power supply before replacing the fuse.

  • Page 26: Functional Description Hi 931500

    FUNCTIONAL DESCRIPTION HI 931500 SINGLE OUTPUT pH CONTROLLER FRONT PANEL ins rum n s DOSAGE SLOPE ACID BASE ∆O SURE COARSE FINE HI 931500 pH Process Controller Keypad To set the working point of pH dosage MEASURE To set HI 931500 on measure- ment mode Trimmers ∆...
  • Page 27 REAR PANEL HI 931500 ELECTRODE INPUT PT100 mA OUT OPEN : ACID SHORT : BASE CONSENT FUSE FUSE 1. Fuse Holder 2. Power supply 3. Reductant or oxidant dosage consent 4. Acid/Basic dosage selection 5. Connections for Dosing Pumps 6. Recorder output 7.

  • Page 28: Functional Description Hi 931501

    FUNCTIONAL DESCRIPTION HI 931501 DUAL OUTPUT pH CONTROLLER FRONT PANEL ins rum n s DOSAGE SLOPE ACID BASE ∆O SURE COARSE ACID SET FINE COARSE HI 931501 BASE SET pH Process Controller FINE Keypad ACID SET To set the working point of acid dosage BASE SET To set the working point of basic dosage...
  • Page 29 ACID SET/FINE To finely adjust the acid set point BASE SET/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 is active MEASURE To show the meter is on mea-...
  • Page 30 REAR PANEL HI 931501 ELECTRODE INPUT PT100 mA OUT BASE ACID FUSE FUSE 1. Fuse Holder 2. Power supply 3. Connections for dosing pump for acid 4. Connections for dosing pump for base 5. Recorder output 6. Connections for PT100 temperature sensor 7.

  • Page 31: Functional Description Hi 932500

    FUNCTIONAL DESCRIPTION HI 932500 ORP CONTROLLER FRONT PANEL DOSAGE SLOPE OXID. REDUC. SURE COARSE FINE HI 932500 ORP Process Controller Keypad To set the working point of ORP dosage MEASURE To set HI 932500 on measure- ment mode Trimmers SLOPE For Slope calibration SET/COARSE To coarsely adjust the ORP set point...
  • Page 32 REAR PANEL HI 932500 ELECTRODE INPUT CONSENT mA OUT OPEN: OXD SHORT: RDX FUSE FUSE 1. Fuse Holder 2. Power supply 3. Oxidant or reductant dosage consent 4. Oxidant/Reductant dosage selection 5. Connections for dosing pump 6. Recorder output 7. BNC socket for ORP electrode. Unplug the instrument from the power supply before replacing the fuse.

  • Page 33: Specifications Hi 8510 And Hi 8512

    SPECIFICATIONS HI 8510 HI 8510E HI 8510T Range 0.00 to 14.00 pH Resolution 0.01 pH Accuracy ±0.02 pH ±0.5% Typical EMC ±0.1 pH ±0.1 pH Deviation ±0.2 mA ±0.2 mA Installation Cat. Input 4 to 20 mA Offset: ±2 pH ∆O trimmer Calibration Slope: 80 to 110% Slope trimmer Temperature...

  • Page 34: Specifications Hi 8710 And Hi 8711

    SPECIFICATIONS HI 8710 HI 8710E HI 8710T Range 0.00 to 14.00 pH Resolution 0.01 pH Accuracy ±0.02 pH ±0.5% Typical EMC ±0.1 pH ±0.1 pH Deviation ±0.2 mA ±0.2 mA Installation Cat. Input 4 to 20 mA Offset: ±2 pH ∆O trimmer Calibration Slope: 80 to 110% Slope trimmer Temperature...

  • Page 35: Specifications Hi 8720 And Hi 931500

    SPECIFICATIONS HI 8720 HI 8720E HI 8720T Range -1000 to +1000 mV Resolution 1 mV Accuracy ±5 mV ±0.5% Typical EMC ±6 mV ±6 mV Deviation ±0.2 mA ±0.2 mA Installation Cat. Input 4 to 20 mA Calibration Slope: 90 to 110% Slope trimmer Set Point Relay One, Isolated, 2 A, max 240 V, resistive load, 1.000.000 strokes...

  • Page 36: Specifications Hi 931501 And Hi 932500

    SPECIFICATIONS HI 931501 HI 931501 Range 0.00 to 14.00 pH Resolution 0.01 pH Accuracy ±0.02 pH Typical EMC ±0.1 pH Deviation ±0.2 mA Installation Cat. Input Offset: ±2 pH ∆O trimmer Calibration Slope: 80 to 110% Slope trimmer Temperature Fixed or automatic with PT100 Compensation from 0 to 100°C Readout...

  • Page 37: Initial Preparation

    INITIAL PREPARATION • Connect a 3-wire power cable to the 4-screw termi- FUSE nal strip; according to the FUSE voltage level as indicated and pay particular attention to the correct live, earth and neutral terminal connections. • For Model E, HI 931500, ELECTRODE HI 931501 and HI 931500 INPUT...
  • Page 38 • HI 8710 and HI 931500 are single dosage controllers for dosing either acid or alka- line liquid. If you plan to dose acid (e.g. in Hexavalent Chromium re- duction), make an open cir- cuit between ACID/BASE OPEN: ACID SHORT: BASE selection terminals (see rear panel descriptions #3 at page 12-13 and #4 at page 23).
  • Page 39 • Acid Contacts (HI 8711 and HI 931501 only): these two ACID contacts are for the connec- FUSE tion to the dosing pump for FUSE the acid. They act as a switch for the power to the drive. • Base contact (HI 8711 and HI 931501 only): these two BASE contacts are for the connec-...

  • Page 40: Operational Guide

    OPERATIONAL GUIDE The setting of the various keys are made via the front panel keys and trimmers. When each key is pressed the LED is lighted indi- cating to the user that the function is in operation. Make sure that the pH or the ORP meter with the electrode is calibrated before operat- ing the instruments (see page 40-42).
  • Page 41 Use a small screwdriver to adjust the trim- mers "ACID SET"/"COARSE" and "FINE" un- til the desired base set value is displayed. ACID BASE COARSE ACID SET FINE To set the working point of base dosage, press the "BASE SET" key. The display will show the set value for base dosage.
  • Page 42 Use a small screwdriver to adjust the trim- mers "∆AL" until the desired tolerance is displayed. ∆AL ∆AL For example: in HI 8710 if the set value is pH 3 and a ∆ Alarm of 1.5 pH is chosen, the instrument gives an alarm every time the measured pH value is higher than 4.5 pH or lower than 1.5 pH.
  • Page 43 When acid is dosed, the ACID LED will be lighted, and when DOSAGE SLOPE ACID BASE base is being dosed, the BASE ∆AL LED will be lighted (HI 8710, SURE COARSE HI 931500 and HI 931501 only). FINE When oxidants are dosed, the OXID LED will be lighted, and DOSAGE SLOPE...

  • Page 44: Ph Calibration

    pH CALIBRATION Make sure you are in the mea- surement mode (MEASURE SURE COARSE LED light is on) and not in the FINE set mode before proceeding the calibration (not for HI 8510). Note the temperature of the buffer with a ChecktempC or a glass thermometer.
  • Page 45 Note: to get accurate readings, use pH 4.01 if you are going to measure acid samples or pH 10.01 for alkaline mea- surements. Shake briefly and wait one minute before adjusting the slope trimmer to display pH 4.01 (or 10.01) on 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.

  • Page 46: Ph Values At Various Temperature

    pH VALUES AT VARIOUS TEMPERATURE Temperature has an effect on pH. The calibration buffer solutions are effected by temperature changes to a lesser degree than normal solutions. Please refer to the following chart to perform the pH calibration: TEMP pH VALUES °C °F 4.01...

  • Page 47: Ph Diagnostic Tests

    pH DIAGNOSTIC TESTS The HI 8510, HI 8710 and HI 8711 are the only pH controllers with built-in autodiagnostic functions to enable the user to check and troubleshoot any malfunctions. The functions are made via front panel keys to isolate the cause of malfunction whether it is due to pH electrode contamination, inter- nal offset circuit or the amplifier circuit.
  • Page 48 B) Internal Offset Circuit Test Press the "pH7 TEST" key and the dis- play should show a value between 7 pH ±1 pH. This will verify the internal circuit of the meter in terms of the offset compen- sation. pH 7 TEST C) Amplifier Circuit Test Press the "pH4 TEST"...

  • Page 49: Orp Diagnostic Tests

    ORP DIAGNOSTIC TESTS The HI 8512 and HI 8720 are the only ORP controllers with built-in autodiagnostic func- tions to enable the user to check and trouble- shoot any malfunctions. The functions are made via front panel keys to isolate the cause of malfunction.

  • Page 50: Led Indication

    LED INDICATION The LEDs above all keys are designed to indicate the state of each function, whether it is active or the display is indicating the mode. For HI 8711 and HI 931501 only Each LED can be in one of the following states: A) Light stays on The mode is displayed...

  • Page 51: Taking Redox Measurements

    TAKING REDOX MEASUREMENTS Redox measurements allow the quantifica- tion of the oxidizing or reducing power of a solution, and are commonly expressed in Oxidation may be defined as the process during which a molecule (or an ion) loses electrons and reduction as the process by which electrons are gained.
  • Page 52 To make correct redox measurements the following conditions must prevail: The surface of the electrode must be cleaned and smooth. The surface of the electrode must un- dergo a preventive treatment depending on the solution to be measured has oxidizing or reductive characteristics. Because the Pt/PtO system depends on the pH, the pretreatment of the electrode may be determined by the pH and the redox potential...
  • Page 53 In the event that measurements are performed with solutions containing sulfides or proteins, the cleaning of the diaphragm of the refer- ence electrode must be performed (see page 20, "Cleaning Procedure"). In order to have a correct functioning of the ORP electrode, immerse it into HI 7020 and measure the response;...

  • Page 54: Electrode Conditioning And Maintenance

    ELECTRODE CONDITIONING AND MAINTENANCE Reference Filling Hole Reference Filling Hole Fill Hole Screw Sensitive Reference Wire Wire Sensitive Reference Wire Wire Reference Reference Junction Junction Glass Glass Bulb Bulb Plastic Body Glass Body pH Electrode pH Electrode Reference Reference Wire Wire Reference Reference...
  • Page 55 Replace the solution in the protective cap with a few drops of HI 70300 Storage Solu- tion or, in its absence, Filling Solution (HI7071 for single junction or HI7082 for double junction electrodes). ® AmpHel is a registered Trademark of "Hanna Instruments"...
  • Page 56 Follow the Preparation Procedure above be- fore taking measurements. Note: NEVER STORE THE ELECTRODE IN DISTILLED WATER OR DRY. PERIODIC MAINTENANCE Inspect the electrode and the cable. The cable used for the 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.
  • Page 57 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 HI 70300 or HI 80300 Stor- age Solution for at least 1 hour before taking measurements.
  • Page 58 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 59: Suggested Installations

    SUGGESTED INSTALLATIONS SHORT DISTANCE, INDOOR INSTALLATION Due to the low current involved, a very high grade of insulation is required. A dry environment is needed in order to ob- Ω. tain a level of insulation not lower than 10 MAXIMUM 10 METERS DRY ENVIRONMENT LESS THAN 80% RELATIVE HUMIDITY...
  • Page 60 MAXIMUM 300 METERS WET ENVIRONMENT RELATIVE HUMIDITY UP TO 100% pH-ORP METER pH METER WITH A pH TRANSMITTER AND CONVENTIONAL ELECTRODE MEASUREMENTS CAN BE TAKEN FROM DISTANCES UP TO 300 METERS (1000 FEET) ® AmpHel is a registered Trademark of "Hanna Instruments"...

  • Page 61: Accessories

    ACCESSORIES pH CALIBRATION SOLUTIONS HI7004M pH 4.01 Buffer Solution, 230 mL HI7004L pH 4.01 Buffer Solution, 460 mL HI7006M pH 6.86 Buffer Solution, 230 mL HI7006L pH 6.86 Buffer Solution, 460 mL HI7007M pH 7.01 Buffer Solution, 230 mL HI7007L pH 7.01 Buffer Solution, 460 mL HI7009M pH 9.18 Buffer Solution, 230 mL HI7009L pH 9.18 Buffer Solution, 460 mL HI7010M pH 10.01 Buffer Solution, 230 mL...
  • Page 62 pH ELECTRODES HI 1090T Screwcap PG13.5 connector, double junction, glass-body PG13.5 THREAD φ 12mm φ 9.5mm 30mm 110mm 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 3/4 x 16 UNF M13 x 1.5 DIA 12mm DIA 20.5mm...
  • Page 63 HI 1210T Screwcap PG13.5 connector, double junction, plastic-body PG13.5 THREAD φ 12mm 30mm 110mm HI 1910B BNC connector, 1 m (3.3') cable, double junction, plastic-body, built-in amplifier 3/4 x 16 UNF DIA 12mm DIA 20.5mm 38.5mm 110mm HI 1911B BNC connector, 1 m (3.3') cable, double junction, plastic-body, built-in amplifier 3/4 x 16 UNF...
  • Page 64 HI 2910B/5 BNC connector, 5 m (16.5') cable, double junction, plastic-body, built-in amplifier 3/4 x 16 UNF DIA 12mm DIA 20.5mm 38.5mm 110mm ORP ELECTRODES HI 2930B/5 BNC connector, 5 m (16.5') cable, ® Pt, Ultem -body, built-in amplifier 3/4 x 16 UNF DIA 12mm DIA 20.5mm 38.5mm...
  • Page 65 HI 3210T Screwcap PG13.5 connector, Pt, plastic-body PG13.5 THREAD φ 12mm 30mm 110mm HI 3410S Screw connector, Pt, plastic-body HI 3430B/3 BNC connector, 3 m (9.9') cable, Pt, plastic-body 3/4 x 16 UNF DIA 12mm M13 x 1.5 DIA 20.5mm 38.5mm 110mm HI 3410S...
  • Page 66 OTHER ACCESSORIES ChecktempC Pocket-size thermometer with penetration probe and 0.1°C resolution (range -50.0 to 150.0°C) HI 76501/P Calibration Screwdriver (20 pcs) HI 8614 pH Transmitter HI 8614L pH Transmitter with LCD Display HI 8615 ORP Transmitter HI 8615L ORP Transmitter with LCD Display BL PUMPS Dosing Pumps with Flow Rate...

  • Page 67: Warranty

    WARRANTY All Hanna Instruments meters are warranted for two years against defects in workmanship and materials when used for their intended purpose and maintained according to instructions. The probes and the electrodes are warranted for a period of six months.

  • Page 68: Ce Declaration Of Conformity

    CE DECLARATION OF CONFORMITY DECLARATION OF CONFORMITY Hanna Instruments Srl V.le delle industrie 12 35010 Ronchi di Villafranca (PD) ITALY herewith certify that the process controllers HI 8510E HI 8510T HI 8512E HI 8512T HI 8710E HI 8710T HI 8720E...
  • Page 69 HANNA LITERATURE Hanna publishes a wide range of catalogs and handbooks for an equally wide range of applications. The reference literature currently covers ar- eas such as: • Water Treatment • Process • Swimming Pools • Agriculture • Food • Laboratory •...
  • Page 70 h t t p : / / w w w . h a n n a i n s t . c o m...

This manual is also suitable for:

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