Instruction Manual
HI 9811 & HI 9811-5
Portable
pH/EC/TDS/°C Meters
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These Instruments are in |
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w w w . h a n n a i n s t . c o m |
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Compliance with the CE Directives |
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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 
directives.
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 |
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PRELIMINARY EXAMINATION ........................................................ |
3 |
GENERAL DESCRIPTION ................................................................ |
3 |
FUNCTIONAL DESCRIPTION .......................................................... |
4 |
SPECIFICATIONS........................................................................... |
5 |
OPERATIONAL GUIDE ................................................................... |
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pH CALIBRATION ......................................................................... |
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pH VALUES AT VARIOUS TEMPERATURES ..................................... |
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EC/TDS CALIBRATION ................................................................. |
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EC/TDS CONVERSION FACTOR..................................................... |
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BATTERY REPLACEMENT .............................................................. |
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PROBE MAINTENANCE ................................................................ |
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ACCESSORIES ............................................................................. |
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CE DECLARATION OF CONFORMITY.............................................. |
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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;
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 and HI 9811-5 are the complete, versatile and waterproof portable combined meters designed with utmost precision and simplicity. 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 temperature changes with a built-in temperature sensor. The temperature coefficient is fixed at 2%/°C.
•HI 9811 is a pH/EC/TDS meter designed for simplicity of use in taking pH, µS/cm and mg/L measurements. Suited for hydroponics, greenhouses, farming and ground water applications.
•HI 9811-5 offers all the features of HI 9811 with the addition of temperature measurement in the °C scale.
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FUNCTIONAL 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)EC/TDS calibration knob
6)pH offset calibration knob
7)mg/L (TDS) selection key
8)°C (Temperature) selection key, for HI 9811-5 only
9)ON/OFF key
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SPECIFICATIONS
Range |
pH |
0.0 to 14.0 |
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mg/L |
0 to 3000 |
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µS/cm |
0 to 6000 |
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°C |
0.0 to 70.0 (HI 9811-5 only) |
Resolution |
pH |
0.1 |
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mg/L |
10 |
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µS/cm |
10 |
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°C |
0.1 (HI 9811-5 only) |
Accuracy |
pH |
±0.1 |
(@20°C/68°F) |
mg/L |
±2% f.s. |
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µS/cm |
±2% f.s. |
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°C |
±0.5 (HI 9811-5 only) |
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Conversion Factor |
0.5 |
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Typical EMC |
pH |
±0.1 |
Deviation |
mg/L |
±2% f.s. |
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µS/cm |
±2% f.s. |
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°C |
±0.5 (HI 9811-5 only) |
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pH Calibration |
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Manual, 1-point through |
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offset trimmer |
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EC/TDS Calibration |
Manual, 1-point through slope trimmer |
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EC/TDS Temperature |
Automatic from 0 to 50°C (32 to 122°F) |
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Compensation |
with ß = 2%/°C |
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Probe (included) |
HI 1285-0 for HI 9811 |
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HI 1285-5 for HI 9811-5 |
Battery Type |
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1 x 9V alkaline (IEC 6LR61) |
Life |
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approx. 150 hours of continuous use |
Environment |
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0 to 50°C (32 to 122°F); 100% RH |
Dimensions |
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165 x 75 x 45 mm |
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(6.5 x 3.0 x 1.8") |
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Weight |
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250 g (8.8 oz.) |
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5
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