Hanna Instruments HI 9812-5N User Manual
Instruction Manual
HI 9812-5
Portable
pH/EC/TDS/°C Meter
www.hannainst.com
1
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.
WARRANTYWARRANTY
WARRANTY
WARRANTYWARRANTY
HI 9812-5 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. This warranty is limited to repair or replacement free of
charge.
Damage due to accidents, misuse, tampering or lack of prescribed
maintenance is 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 problem. 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 Technical Service department and then send it with shipping
costs prepaid. When shipping any instrument, make sure it is properly
packed for complete protection.
TABLE OF CONTENTSTABLE OF CONTENTS
TABLE OF CONTENTS
TABLE OF CONTENTSTABLE OF CONTENTS
WARRANTY .................................................................................. 2
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..................................................... 11
BATTERY REPLACEMENT .............................................................. 12
PROBE MAINTENANCE ................................................................ 13
ACCESSORIES ............................................................................. 14
2
PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION
PRELIMINARY EXAMINATION
PRELIMINARY EXAMINATIONPRELIMINARY 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 1285-5, pH/EC/TDS/°C probe
• HI 70007, pH 7.01 sachet, 1 pc
• HI 70031, 1413 µS/cm sachet, 1 pc
• HI 70032, 1382 ppm 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 items must be returned in the
original packing together with the supplied accessories.
GENERAL DESCRIPTIONGENERAL DESCRIPTION
GENERAL DESCRIPTION
GENERAL DESCRIPTIONGENERAL DESCRIPTION
HI 9812-5 is the complete, versatile and splash-proof portable
combination meter specially dedicated to aquariums, fish-farming and
seawater applications.
The instrument provides measurements for pH, EC, TDS and temperature
ranges, which are easily selectable through a keypad on the front
panel.
Conductivity measurements are automatically compensated for
temperature changes with a built-in temperature sensor. The
temperature coefficient is fixed at 2%/°C.
• HI 9812-5 is a pH/EC/TDS meter designed for simplicity of use
in taking pH, µS/cm, ppm and temperature measurements.
Suited for hydroponics, greenhouses, farming and ground water
applications.
All rights are reserved. Reproduction in whole or in part is prohibited without the written
consent of the copyright owner.
3
FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION
FUNCTIONAL DESCRIPTION
FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION
1) 8-pin DIN connector for probe
2) Liquid Crystal Display
3) pH range selection key
4) µS/cm (EC) range selection key
5) ppm (TDS) selection key
6) pH offset calibration knob
7) EC/TDS calibration knob
8) °C (Temperature) selection key
9) On/Off key
4
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SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONSSPECIFICATIONS
5
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