Hanna Instruments HI 9812 Instruction Manual

Hanna Instruments HI 9812 Instruction Manual

Portable ph/ec/tds meters
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Instruction Manual
HI 9812 - HI 9813
Portable
pH/EC/TDS Meters
These Instruments are in
h t t p : / / w w w . h a n n a i n s t . c o m
Compliance with the CE Directives

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Summary of Contents for Hanna Instruments HI 9812

  • Page 1 Instruction Manual HI 9812 - HI 9813 Portable pH/EC/TDS Meters These Instruments are in h t t p : / / w w w . h a n n a i n s t . c o m Compliance with the CE Directives...
  • Page 2: Table Of Contents

    TABLE OF CONTENTS TABLE OF CONTENTS PRELIMINARY EXAMINATION ............3 GENERAL DESCRIPTION ..............3 FUNCTIONAL DESCRIPTION HI 9812 ..........4 SPECIFICATIONS HI 9812 ............5 FUNCTIONAL DESCRIPTION HI 9813 ..........6 SPECIFICATIONS HI 9813 ............7 OPERATIONAL GUIDE ..............8 pH CALIBRATION ...............
  • Page 3: Preliminary Examination

    The tempera- ture coefficient is fixed at 2%. • HI 9812 is a pH/EC/TDS meter designed for simplicity of use in taking pH, µS/cm and ppm measurements. Suited for aquariums, fish-farming, seawater applications.
  • Page 4: Functional Description Hi 9812

    FUNCTIONAL DESCRIPTION HI 9812 FUNCTIONAL DESCRIPTION HI 9812 FUNCTIONAL DESCRIPTION HI 9812 FUNCTIONAL DESCRIPTION HI 9812 FUNCTIONAL DESCRIPTION HI 9812 1) LCD display 2) pH range selection key 3) µS/cm (EC) range selection key 4) EC/TDS calibration knob 5) ON/OFF key 6) ppm (TDS) selection key 7) pH offset calibration knob.
  • Page 5: Specifications Hi 9812

    S P E C I F I C A T I O N S H I 9 8 1 2 S P E C I F I C A T I O N S H I 9 8 1 2 HI 9812 Range 0.0 to 14.0...
  • Page 6: Functional Description Hi 9813

    F U N C T I O N A L D E S C R I P T I O N H I 9 8 1 3 F U N C T I O N A L D E S C R I P T I O N H I 9 8 1 3 F U N C T I O N A L D E S C R I P T I O N H I 9 8 1 3 F U N C T I O N A L D E S C R I P T I O N H I 9 8 1 3 F U N C T I O N A L D E S C R I P T I O N H I 9 8 1 3...
  • Page 7: Specifications Hi 9813

    S P E C I F I C A T I O N S H I 9 8 1 3 S P E C I F I C A T I O N S H I 9 8 1 3 S P E C I F I C A T I O N S H I 9 8 1 3 S P E C I F I C A T I O N S H I 9 8 1 3 S P E C I F I C A T I O N S H I 9 8 1 3...
  • Page 8: Operational Guide

    OPERATIONAL GUIDE OPERATIONAL GUIDE OPERATIONAL GUIDE OPERATIONAL GUIDE OPERATIONAL GUIDE INITIAL PREPARATION Each meter is supplied complete with a 9V battery. Slide off the battery compartment cover on the back of the meter (see page 18), install the battery while paying attention to its polarity. Connect the probe to the DIN socket on the top of the meter by aligning the pins with the socket and pushing in the plug.
  • Page 9 µS symbol indicates the meter is in µS/cm, EC mode (HI 9812 only) mS symbol indicates the meter is in mS/cm, EC mode (HI 9813 only) - No symbol indicates the meter is in TDS mode.
  • Page 10 (HI 7004 or HI 8004) if you are going to measure acidic samples or pH 10.01 (HI 7010 or HI 8010) for alkaline measurements. If you need to calibrate HI 9812 and HI 9813 to NBS standards, use pH 6.86 (HI 7006 or HI 8006) instead of pH 7.01 and pH 9.18 (HI 7009 or HI 8009) instead of pH 10.01.
  • Page 11: Ec/Tds Calibration

    • Select the appropriate range, e.g. µS/cm for HI 9812 or the mS/ cm key for the HI9813. • Turn the EC/TDS calibration knob until the display shows the EC or TDS reading at 25°C.
  • Page 12: Ph Values At Various Temperatures

    p p p p p H VALUES AT VARIOUS H VALUES AT VARIOUS H VALUES AT VARIOUS H VALUES AT VARIOUS H VALUES AT VARIOUS TEMPERATURES TEMPERATURES TEMPERATURES TEMPERATURES TEMPERATURES For temperature compensation during calibration, please refer to the following chart. TEMP pH VALUES °C...
  • Page 13: Temperature Compensation

    The TDS value in aqueous solutions is directly proportional to conduc- tivity. The ratio between the two parameters depends on the solution. HI 9812 has a fixed conversion factor set to 0.5 (corresponding to a solution of CaCO ). This means that 1 µS/cm is equal to 0.5 ppm (mg/L) of TDS.
  • Page 14: Electrode Conditioning And Maintenance

    ELECTRODE CONDITIONING ELECTRODE CONDITIONING ELECTRODE CONDITIONING ELECTRODE CONDITIONING ELECTRODE CONDITIONING A N D M A I N T E N A N C E A N D M A I N T E N A N C E A N D M A I N T E N A N C E A N D M A I N T E N A N C E A N D M A I N T E N A N C E HI 1285 is a combined pH/EC/TDS electrode with built-in temperature sensor for EC/...
  • Page 15 CLEANING PROCEDURE Soak in Hanna HI 7061 General Cleaning Solu- General tion for approximately ½ hour. Removal of films, dirt or deposits on the membrane/junction: Soak in Hanna HI 7073 Protein Cleaning Solu- Protein tion for 15 minutes. Soak in Hanna HI 7074 Inorganic Cleaning Inorganic Solution for 15 minutes.
  • Page 16: Accessories

    A C C E S S O R I E S A C C E S S O R I E S A C C E S S O R I E S A C C E S S O R I E S A C C E S S O R I E S pH CALIBRATION SOLUTIONS HI 70004P pH 4.01 Buffer Sachets, 25 x 20 mL...
  • Page 17 HI 70300L Storage Solution, 460 mL ELECTRODE STORAGE SOLUTIONS IN FDA APPROVED BOTTLE HI 80300M Storage Solution, 230 mL HI 80300L Storage Solution, 460 mL ELECTRODE CLEANING SOLUTIONS HI 70000P Electrode Rinsing Sachets, 25 x 20 mL HI 7061M General Cleaning Solution, 230 mL HI 7061L General Cleaning Solution, 460 mL HI 7073M Protein Cleaning Solution, 230 mL...
  • Page 18: Battery Replacement

    If the repair is not covered by the warranty, you will be notified of the charges incurred. If the instrument is to be returned to Hanna Instruments, first obtain a Returned Goods Authorization number from the Customer Service department and then send it with shipping costs prepaid.
  • Page 19: Ce Declaration Of Conformity

    CE DECLARATION OF CONFORMITY CE DECLARATION OF CONFORMITY CE DECLARATION OF CONFORMITY CE DECLARATION OF CONFORMITY CE DECLARATION OF CONFORMITY 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 areas could cause unacceptable interferences to radio and TV equipment.
  • Page 20 HANNA LITERATURE HANNA LITERATURE HANNA LITERATURE HANNA LITERATURE HANNA LITERATURE LAB RECORDING WATER ANALYSIS HANDBOOK ENVIROCARE GENERAL CATALOG These and many others catalogs, handbooks and leaflets are avail- able from Hanna. To receive your free copy, contact your dealer or the nearest Hanna Customer Service Center.

This manual is also suitable for:

Hi 9813

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