Hanna Instruments HI 9811-5 Instruction Manual
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Hanna Instruments HI 9811-5 Instruction Manual

Portable ph/ec/tds/c meters
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99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com
Instruction Manual
HI 9811-5
Portable
pH/EC/TDS/°C Meters
1

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Summary of Contents for Hanna Instruments HI 9811-5

  • Page 1 99 Washington Street Melrose, MA 02176 Phone 781-665-1400 Toll Free 1-800-517-8431 Visit us at www.TestEquipmentDepot.com Instruction Manual HI 9811-5 Portable pH/EC/TDS/°C Meters...

  • Page 2: Table Of Contents

    W A R R A N T Y W A R R A N T Y HI 9811-5 is guaranteed for two years against defects in workmanship and materials when used for their intended purpose and maintained according to instructions. Electrodes and probes are guaranteed for six months.

  • Page 3: Preliminary Examination

    GENERAL DESCRIPTION GENERAL DESCRIPTION GENERAL DESCRIPTION HI 9811-5 is the complete, versatile, with a large LCD and splash- proof portable combination meter designed with the utmost precision and simplicity. The instrument provides measurements for pH, EC and TDS ranges, which are easily selectable through the keypad on the front panel.

  • Page 4: Functional Description

    F U N C T I O N A L D E S C R I P T I O N F U N C T I O N A L D E S C R I P T I O N F U N C T I O N A L D E S C R I P T I O N F U N C T I O N A L D E S C R I P T I O N F U N C T I O N A L D E S C R I P T I O N...

  • Page 5: Specifications

    SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS 0 . 0 0 . 4 µ m c L / g 0 . 0 0 . 0 C ° 1 . 0 0 1 µ m c l o s i t u L / g 1 .

  • Page 6: Operational Guide

    OPERATIONAL GUIDE OPERATIONAL GUIDE OPERATIONAL GUIDE OPERATIONAL GUIDE OPERATIONAL GUIDE INITIAL PREPARATION Each meter is supplied complete with a 9V battery. Remove the battery compartment cover on the back of the meter and install the battery while observing 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 7 • Select the appropriate measurement range (EC or TDS). • Wait a couple of minutes for the temperature sensor to reach thermal equilibrium. The display will then show the measurement automatically temperature compensated for temperature with the appropriate indication among the following: “µS”...

  • Page 8: Ph Calibration

    p p p p p H CALIBRATION H CALIBRATION H CALIBRATION H CALIBRATION H CALIBRATION For greatest accuracy, frequent calibration of the instrument is recommended. The instrument should be recalibrated for pH: a) Whenever the electrode is replaced. b) At least once a month. c) After testing aggressive chemicals.
  • Page 9 Notes: • The probe should be submerged approximately 4 cm (1½") into the solution. The thermometer has to be close to the probe. • If turning the knob the needed value can not be reached, clean the probe (see the “Probe Maintenance” section). If also after the probe cleaning the value can not be reached, replace the probe.

  • Page 10: Ph Values At Various Temperatures

    p p p p p H VALUES AT VARIOUS TEMPERATURES H VALUES AT VARIOUS TEMPERATURES H VALUES AT VARIOUS TEMPERATURES H VALUES AT VARIOUS TEMPERATURES H VALUES AT VARIOUS TEMPERATURES For temperature compensation during calibration, please refer to the following chart. C º...

  • Page 11: Ec/Tds Calibration

    The TDS value in aqueous solutions is directly proportional to the conductivity. The ratio between the two parameters depends on the solution. HI 9811-5 model has a fixed conversion factor set to 0.5. This means that 1 µS/cm is equal to 0.5 mg/L of TDS.

  • Page 12: Battery Replacement

    BATTERY REPLACEMENT BATTERY REPLACEMENT BATTERY REPLACEMENT BATTERY REPLACEMENT BATTERY REPLACEMENT The meters is powered by a 9V battery that is located on the rear of the instrument. When battery symbol is empty a low battery condition is indicated. When the low battery indication appears, only a few hours of working time remains.

  • Page 13: Probe Maintenance

    PROBE MAINTENANCE PROBE MAINTENANCE PROBE MAINTENANCE PROBE MAINTENANCE PROBE MAINTENANCE PERIODIC MAINTENANCE Inspect the probe 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 probe stem or bulb. Connector must be perfectly clean and dry.

  • Page 14: 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 PROBES HI 1285-0 Combination, amplified pH/EC/TDS probe with built-in...
  • Page 15 RECOMMENDATIONS FOR USERS Before using these products, make sure 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 requiring the operator to follow all necessary steps to correct interferences. The glass bulb at the end of the electrode is sensitive to electrostatic discharges.

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