Table Of Contents; Preliminary Examination; General Description - Hanna Instruments HI 9811-5 Instruction Manual

Dear Customer,
Thank you for choosing a Hanna product.
Please read this instruction manual carefully before using the meter.
This manual will provide you with the necessary information for
correct use of the instrument, as well as a precise idea of its versatility.
If you need additional technical information, do not hesitate to e-mail
us at tech@hannainst.com.
These instruments are in compliance with the
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. Probes are warranted for a period of six months.
This warranty is limited to repair or replacement free of charge.
Damages due to accidents, misuse, tampering or lack of prescribed maintenance are
not covered.
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. 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. When shipping any instrument, make
sure it is properly packaged for complete protection.

TABLE OF CONTENTS

PRELIMINARY EXAMINATION ........................................................ 3
GENERAL DESCRIPTION ................................................................ 3
FUNCTIONAL DESCRIPTION .......................................................... 4
SPECIFICATIONS........................................................................... 5
OPERATIONAL GUIDE ................................................................... 6
pH CALIBRATION ......................................................................... 8
pH VALUES AT VARIOUS TEMPERATURES ..................................... 9
EC/TDS CALIBRATION ................................................................. 10
EC/TDS CONVERSION FACTOR..................................................... 10
BATTERY REPLACEMENT .............................................................. 11
PROBE MAINTENANCE ................................................................ 12
ACCESSORIES ............................................................................. 13
CE DECLARATION OF CONFORMITY .............................................. 14
directives.
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PRELIMINARY EXAMINATION

Remove the instrument from the packing material and examine it
carefully to make sure that no damage has occurred during shipment.
If noticeable damage is found, notify your Dealer.
Each meter is supplied with:
• Combination probe with 8-pin DIN connector & 1 m (3.3') cable:
• HI 1285-0, pH/EC/TDS probe, for HI 9811-0
• HI 1285-5, pH/EC/TDS/°C probe, for HI 9811-5
• HI 70007, pH 7.01 sachet, 1 pc
• HI 70031, 1413 µS/cm sachet, 1 pc
• HI 70032, 1382 ppm (mg/L) sachet, 1 pc
• HI 700661 cleaning solution sachet, 2 pcs
• Instruction manual
• 1 x 9V alkaline battery.
Note: Save all packing material until you are sure that the
instrument functions correctly. Any defective item must be
returned in the original packing together with the supplied
accessories.

GENERAL DESCRIPTION

HI 9811-0 and HI 9811-5 are the complete, versatile and rain-proof
portable combined meters designed with utmost precision and simplic-
ity. Both models provide measurements for pH, EC and TDS ranges,
which are easily selectable through a membrane keyboard on the
front panel.
Conductivity measurements are automatically compensated for tem-
perature changes with a built-in temperature sensor. The temperature
coefficient is fixed at 2%/°C.
• HI 9811-0 is a pH/EC/TDS meter designed for simplicity of use in
taking pH, µS/cm and mg/L measurements. Suited for hydro-
ponics, greenhouses, farming and ground water applications.
• HI 9811-5 offers all the features of HI 9811-0 with the addition
of temperature measurement in the °C scale.
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